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/*
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* Copyright ( c ) 2002 - 2007 , Communications and Remote Sensing Laboratory , Universite catholique de Louvain ( UCL ) , Belgium
* Copyright ( c ) 2002 - 2007 , Professor Benoit Macq
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* Copyright ( c ) 2001 - 2003 , David Janssens
* Copyright ( c ) 2002 - 2003 , Yannick Verschueren
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* Copyright ( c ) 2003 - 2007 , Francois - Olivier Devaux and Antonin Descampe
* Copyright ( c ) 2005 , Herve Drolon , FreeImage Team
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* Copyright ( c ) 2008 , Jerome Fimes , Communications & Systemes < jerome . fimes @ c - s . fr >
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* Copyright ( c ) 2006 - 2007 , Parvatha Elangovan
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* Copyright ( c ) 2010 - 2011 , Kaori Hagihara
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* Copyright ( c ) 2011 , Mickael Savinaud , Communications & Systemes < mickael . savinaud @ c - s . fr >
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* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* 1. Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* 2. Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in the
* documentation and / or other materials provided with the distribution .
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ` AS IS '
* AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT LIMITED TO , THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED . IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT , INDIRECT , INCIDENTAL , SPECIAL , EXEMPLARY , OR
* CONSEQUENTIAL DAMAGES ( INCLUDING , BUT NOT LIMITED TO , PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE , DATA , OR PROFITS ; OR BUSINESS
* INTERRUPTION ) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY , WHETHER IN
* CONTRACT , STRICT LIABILITY , OR TORT ( INCLUDING NEGLIGENCE OR OTHERWISE )
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE .
*/
# include "opj_includes.h"
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/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
/*@{*/
/** @name Local static functions */
/*@{*/
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/**
* Sets up the procedures to do on reading header . Developpers wanting to extend the library can add their own reading procedures .
*/
void j2k_setup_header_reading ( opj_j2k_v2_t * p_j2k ) ;
/**
* The read header procedure .
*/
opj_bool j2k_read_header_procedure (
opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager ) ;
/**
* The default decoding validation procedure without any extension .
*
* @ param p_j2k the jpeg2000 codec to validate .
* @ param p_stream the input stream to validate .
* @ param p_manager the user event manager .
*
* @ return true if the parameters are correct .
*/
opj_bool j2k_decoding_validation (
opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager
) ;
/**
* Sets up the validation , i . e . adds the procedures to lauch to make sure the codec parameters
* are valid . Developpers wanting to extend the library can add their own validation procedures .
*/
static void j2k_setup_decoding_validation ( opj_j2k_v2_t * p_j2k ) ;
/**
* Builds the tcd decoder to use to decode tile .
*/
opj_bool j2k_build_decoder (
opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager
) ;
/**
* Excutes the given procedures on the given codec .
*
* @ param p_procedure_list the list of procedures to execute
* @ param p_j2k the jpeg2000 codec to execute the procedures on .
* @ param p_stream the stream to execute the procedures on .
* @ param p_manager the user manager .
*
* @ return true if all the procedures were successfully executed .
*/
static opj_bool j2k_exec (
opj_j2k_v2_t * p_j2k ,
opj_procedure_list_t * p_procedure_list ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager
) ;
/**
* Copies the decoding tile parameters onto all the tile parameters .
* Creates also the tile decoder .
*/
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opj_bool j2k_copy_default_tcp_and_create_tcd ( opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager ) ;
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/**
* Reads the lookup table containing all the marker , status and action , and returns the handler associated
* with the marker value .
* @ param p_id Marker value to look up
*
* @ return the handler associated with the id .
*/
static const struct opj_dec_memory_marker_handler * j2k_get_marker_handler ( OPJ_UINT32 p_id ) ;
/**
* Destroys a tile coding parameter structure .
*
* @ param p_tcp the tile coding parameter to destroy .
*/
static void j2k_tcp_destroy ( opj_tcp_v2_t * p_tcp ) ;
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/**
* Destroys the data inside a tile coding parameter structure .
*
* @ param p_tcp the tile coding parameter which contain data to destroy .
*/
static void j2k_tcp_data_destroy ( opj_tcp_v2_t * p_tcp ) ;
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/**
* Destroys a coding parameter structure .
*
* @ param p_cp the coding parameter to destroy .
*/
static void j2k_cp_destroy ( opj_cp_v2_t * p_cp ) ;
/**
* Reads a SPCod or SPCoc element , i . e . the coding style of a given component of a tile .
* @ param p_header_data the data contained in the COM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the COM marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_SPCod_SPCoc (
opj_j2k_v2_t * p_j2k ,
OPJ_UINT32 compno ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 * p_header_size ,
struct opj_event_mgr * p_manager
) ;
/**
* Reads a SQcd or SQcc element , i . e . the quantization values of a band in the QCD or QCC .
*
* @ param p_tile_no the tile to output .
* @ param p_comp_no the component number to output .
* @ param p_data the data buffer .
* @ param p_header_size pointer to the size of the data buffer , it is changed by the function .
* @ param p_j2k J2K codec .
* @ param p_manager the user event manager .
*
*/
static opj_bool j2k_read_SQcd_SQcc (
opj_j2k_v2_t * p_j2k ,
OPJ_UINT32 compno ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 * p_header_size ,
struct opj_event_mgr * p_manager
) ;
/**
* Copies the tile component parameters of all the component from the first tile component .
*
* @ param p_j2k the J2k codec .
*/
static void j2k_copy_tile_component_parameters (
opj_j2k_v2_t * p_j2k
) ;
/**
* Copies the tile quantization parameters of all the component from the first tile component .
*
* @ param p_j2k the J2k codec .
*/
static void j2k_copy_tile_quantization_parameters (
opj_j2k_v2_t * p_j2k
) ;
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/**
* Reads the tiles .
*/
opj_bool j2k_decode_tiles ( opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager ) ;
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static opj_bool j2k_update_image_data ( opj_tcd_v2_t * p_tcd , OPJ_BYTE * p_data , opj_image_t * p_output_image ) ;
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/*
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
*/
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/**
Write the SOC marker ( Start Of Codestream )
@ param j2k J2K handle
*/
static void j2k_write_soc ( opj_j2k_t * j2k ) ;
/**
Read the SOC marker ( Start of Codestream )
@ param j2k J2K handle
*/
static void j2k_read_soc ( opj_j2k_t * j2k ) ;
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/**
* Reads a SOC marker ( Start of Codestream )
* @ param p_header_data the data contained in the SOC box .
* @ param jp2 the jpeg2000 file codec .
* @ param p_header_size the size of the data contained in the SOC marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_soc_v2 (
opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the SIZ marker ( image and tile size )
@ param j2k J2K handle
*/
static void j2k_write_siz ( opj_j2k_t * j2k ) ;
/**
Read the SIZ marker ( image and tile size )
@ param j2k J2K handle
*/
static void j2k_read_siz ( opj_j2k_t * j2k ) ;
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/**
* Reads a SIZ marker ( image and tile size )
* @ param p_header_data the data contained in the SIZ box .
* @ param jp2 the jpeg2000 file codec .
* @ param p_header_size the size of the data contained in the SIZ marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_siz_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the COM marker ( comment )
@ param j2k J2K handle
*/
static void j2k_write_com ( opj_j2k_t * j2k ) ;
/**
Read the COM marker ( comment )
@ param j2k J2K handle
*/
static void j2k_read_com ( opj_j2k_t * j2k ) ;
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/**
* Reads a COM marker ( comments )
* @ param p_header_data the data contained in the COM box .
* @ param jp2 the jpeg2000 file codec .
* @ param p_header_size the size of the data contained in the COM marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_com_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the value concerning the specified component in the marker COD and COC
@ param j2k J2K handle
@ param compno Number of the component concerned by the information written
*/
static void j2k_write_cox ( opj_j2k_t * j2k , int compno ) ;
/**
Read the value concerning the specified component in the marker COD and COC
@ param j2k J2K handle
@ param compno Number of the component concerned by the information read
*/
static void j2k_read_cox ( opj_j2k_t * j2k , int compno ) ;
/**
Write the COD marker ( coding style default )
@ param j2k J2K handle
*/
static void j2k_write_cod ( opj_j2k_t * j2k ) ;
/**
Read the COD marker ( coding style default )
@ param j2k J2K handle
*/
static void j2k_read_cod ( opj_j2k_t * j2k ) ;
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/**
* Reads a COD marker ( Coding Styke defaults )
* @ param p_header_data the data contained in the COD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the COD marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_cod_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the COC marker ( coding style component )
@ param j2k J2K handle
@ param compno Number of the component concerned by the information written
*/
static void j2k_write_coc ( opj_j2k_t * j2k , int compno ) ;
/**
Read the COC marker ( coding style component )
@ param j2k J2K handle
*/
static void j2k_read_coc ( opj_j2k_t * j2k ) ;
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/**
* Reads a COC marker ( Coding Style Component )
* @ param p_header_data the data contained in the COC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the COC marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_coc_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the value concerning the specified component in the marker QCD and QCC
@ param j2k J2K handle
@ param compno Number of the component concerned by the information written
*/
static void j2k_write_qcx ( opj_j2k_t * j2k , int compno ) ;
/**
Read the value concerning the specified component in the marker QCD and QCC
@ param j2k J2K handle
@ param compno Number of the component concern by the information read
@ param len Length of the information in the QCX part of the marker QCD / QCC
*/
static void j2k_read_qcx ( opj_j2k_t * j2k , int compno , int len ) ;
/**
Write the QCD marker ( quantization default )
@ param j2k J2K handle
*/
static void j2k_write_qcd ( opj_j2k_t * j2k ) ;
/**
Read the QCD marker ( quantization default )
@ param j2k J2K handle
*/
static void j2k_read_qcd ( opj_j2k_t * j2k ) ;
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/**
* Reads a QCD marker ( Quantization defaults )
* @ param p_header_data the data contained in the QCD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the QCD marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_qcd_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the QCC marker ( quantization component )
@ param j2k J2K handle
@ param compno Number of the component concerned by the information written
*/
static void j2k_write_qcc ( opj_j2k_t * j2k , int compno ) ;
/**
Read the QCC marker ( quantization component )
@ param j2k J2K handle
*/
static void j2k_read_qcc ( opj_j2k_t * j2k ) ;
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/**
* Reads a QCC marker ( Quantization component )
* @ param p_header_data the data contained in the QCC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the QCC marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_qcc_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager ) ;
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/**
Write the POC marker ( progression order change )
@ param j2k J2K handle
*/
static void j2k_write_poc ( opj_j2k_t * j2k ) ;
/**
Read the POC marker ( progression order change )
@ param j2k J2K handle
*/
static void j2k_read_poc ( opj_j2k_t * j2k ) ;
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/**
* Reads a POC marker ( Progression Order Change )
*
* @ param p_header_data the data contained in the POC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the POC marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_poc_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Read the CRG marker ( component registration )
@ param j2k J2K handle
*/
static void j2k_read_crg ( opj_j2k_t * j2k ) ;
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/**
* Reads a CRG marker ( Component registration )
*
* @ param p_header_data the data contained in the TLM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the TLM marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_crg_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Read the TLM marker ( tile - part lengths )
@ param j2k J2K handle
*/
static void j2k_read_tlm ( opj_j2k_t * j2k ) ;
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/**
* Reads a TLM marker ( Tile Length Marker )
*
* @ param p_header_data the data contained in the TLM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the TLM marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_tlm_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Read the PLM marker ( packet length , main header )
@ param j2k J2K handle
*/
static void j2k_read_plm ( opj_j2k_t * j2k ) ;
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/**
* Reads a PLM marker ( Packet length , main header marker )
*
* @ param p_header_data the data contained in the TLM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the TLM marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_plm_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Read the PLT marker ( packet length , tile - part header )
@ param j2k J2K handle
*/
static void j2k_read_plt ( opj_j2k_t * j2k ) ;
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/**
* Reads a PLT marker ( Packet length , tile - part header )
*
* @ param p_header_data the data contained in the PLT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the PLT marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_plt_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Read the PPM marker ( packet packet headers , main header )
@ param j2k J2K handle
*/
static void j2k_read_ppm ( opj_j2k_t * j2k ) ;
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/**
* Reads a PPM marker ( Packed packet headers , main header )
*
* @ param p_header_data the data contained in the POC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the POC marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_ppm_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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static opj_bool j2k_read_ppm_v3 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Read the PPT marker ( packet packet headers , tile - part header )
@ param j2k J2K handle
*/
static void j2k_read_ppt ( opj_j2k_t * j2k ) ;
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/**
* Reads a PPT marker ( Packed packet headers , tile - part header )
*
* @ param p_header_data the data contained in the PPT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the PPT marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_ppt_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
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Write the TLM marker ( Mainheader )
@ param j2k J2K handle
*/
static void j2k_write_tlm ( opj_j2k_t * j2k ) ;
/**
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Write the SOT marker ( start of tile - part )
@ param j2k J2K handle
*/
static void j2k_write_sot ( opj_j2k_t * j2k ) ;
/**
Read the SOT marker ( start of tile - part )
@ param j2k J2K handle
*/
static void j2k_read_sot ( opj_j2k_t * j2k ) ;
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/**
* Reads a PPT marker ( Packed packet headers , tile - part header )
*
* @ param p_header_data the data contained in the PPT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the PPT marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_sot_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the SOD marker ( start of data )
@ param j2k J2K handle
@ param tile_coder Pointer to a TCD handle
*/
static void j2k_write_sod ( opj_j2k_t * j2k , void * tile_coder ) ;
/**
Read the SOD marker ( start of data )
@ param j2k J2K handle
*/
static void j2k_read_sod ( opj_j2k_t * j2k ) ;
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/**
* Reads a SOD marker ( Start Of Data )
*
* @ param p_header_data the data contained in the SOD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the SOD marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_sod_v2 (
opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the RGN marker ( region - of - interest )
@ param j2k J2K handle
@ param compno Number of the component concerned by the information written
@ param tileno Number of the tile concerned by the information written
*/
static void j2k_write_rgn ( opj_j2k_t * j2k , int compno , int tileno ) ;
/**
Read the RGN marker ( region - of - interest )
@ param j2k J2K handle
*/
static void j2k_read_rgn ( opj_j2k_t * j2k ) ;
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/**
* Reads a RGN marker ( Region Of Interest )
*
* @ param p_header_data the data contained in the POC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the POC marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_rgn_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
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/**
Write the EOC marker ( end of codestream )
@ param j2k J2K handle
*/
static void j2k_write_eoc ( opj_j2k_t * j2k ) ;
/**
Read the EOC marker ( end of codestream )
@ param j2k J2K handle
*/
static void j2k_read_eoc ( opj_j2k_t * j2k ) ;
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/**
* Reads a EOC marker ( End Of Codestream )
*
* @ param p_header_data the data contained in the SOD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the SOD marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_eoc_v2 (
opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager
) ;
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/**
Read an unknown marker
@ param j2k J2K handle
*/
static void j2k_read_unk ( opj_j2k_t * j2k ) ;
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/**
Add main header marker information
@ param cstr_info Codestream information structure
@ param type marker type
@ param pos byte offset of marker segment
@ param len length of marker segment
*/
static void j2k_add_mhmarker ( opj_codestream_info_t * cstr_info , unsigned short int type , int pos , int len ) ;
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static void j2k_add_mhmarker_v2 ( opj_codestream_index_t * cstr_index , OPJ_UINT32 type , OPJ_OFF_T pos , OPJ_UINT32 len ) ;
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/**
Add tile header marker information
@ param tileno tile index number
@ param cstr_info Codestream information structure
@ param type marker type
@ param pos byte offset of marker segment
@ param len length of marker segment
*/
static void j2k_add_tlmarker ( int tileno , opj_codestream_info_t * cstr_info , unsigned short int type , int pos , int len ) ;
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static void j2k_add_tlmarker_v2 ( OPJ_UINT32 tileno , opj_codestream_index_t * cstr_index , OPJ_UINT32 type , OPJ_OFF_T pos , OPJ_UINT32 len ) ;
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/**
* Reads an unknown marker
*
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* @ param p_stream the stream object to read from .
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* @ param p_j2k the jpeg2000 codec .
* @ param p_manager the user event manager .
*
* @ return true if the marker could be deduced .
*/
static opj_bool j2k_read_unk_v2 ( opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
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OPJ_UINT32 * output_marker ,
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struct opj_event_mgr * p_manager ) ;
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/**
* Reads a MCT marker ( Multiple Component Transform )
*
* @ param p_header_data the data contained in the MCT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the MCT marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_mct ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager ) ;
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/**
* Reads a MCC marker ( Multiple Component Collection )
*
* @ param p_header_data the data contained in the MCC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the MCC marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_mcc ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager ) ;
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/**
* Reads a MCO marker ( Multiple Component Transform Ordering )
*
* @ param p_header_data the data contained in the MCO box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the MCO marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_mco ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager ) ;
static opj_bool j2k_add_mct ( opj_tcp_v2_t * p_tcp , opj_image_t * p_image , OPJ_UINT32 p_index ) ;
static void j2k_read_int16_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_read_int32_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_read_float32_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_read_float64_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_read_int16_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_read_int32_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_read_float32_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_read_float64_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_write_float_to_int16 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_write_float_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_write_float_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
static void j2k_write_float_to_float64 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
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/**
* Reads a CBD marker ( Component bit depth definition )
* @ param p_header_data the data contained in the CBD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the CBD marker .
* @ param p_manager the user event manager .
*/
static opj_bool j2k_read_cbd ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager ) ;
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static void j2k_dump_MH_info ( opj_j2k_v2_t * p_j2k , FILE * out_stream ) ;
static void j2k_dump_MH_index ( opj_j2k_v2_t * p_j2k , FILE * out_stream ) ;
static opj_codestream_index_t * j2k_create_cstr_index ( void ) ;
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/*@}*/
/*@}*/
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/* ----------------------------------------------------------------------- */
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typedef struct j2k_prog_order {
OPJ_PROG_ORDER enum_prog ;
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char str_prog [ 5 ] ;
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} j2k_prog_order_t ;
j2k_prog_order_t j2k_prog_order_list [ ] = {
{ CPRL , " CPRL " } ,
{ LRCP , " LRCP " } ,
{ PCRL , " PCRL " } ,
{ RLCP , " RLCP " } ,
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{ RPCL , " RPCL " } ,
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{ ( OPJ_PROG_ORDER ) - 1 , " " }
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} ;
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/**
* FIXME DOC
*/
const OPJ_UINT32 MCT_ELEMENT_SIZE [ ] =
{
2 ,
4 ,
4 ,
8
} ;
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typedef void ( * j2k_mct_function ) ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem ) ;
const j2k_mct_function j2k_mct_read_functions_to_float [ ] =
{
j2k_read_int16_to_float ,
j2k_read_int32_to_float ,
j2k_read_float32_to_float ,
j2k_read_float64_to_float
} ;
const j2k_mct_function j2k_mct_read_functions_to_int32 [ ] =
{
j2k_read_int16_to_int32 ,
j2k_read_int32_to_int32 ,
j2k_read_float32_to_int32 ,
j2k_read_float64_to_int32
} ;
const j2k_mct_function j2k_mct_write_functions_from_float [ ] =
{
j2k_write_float_to_int16 ,
j2k_write_float_to_int32 ,
j2k_write_float_to_float ,
j2k_write_float_to_float64
} ;
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typedef struct opj_dec_memory_marker_handler
{
/** marker value */
OPJ_UINT32 id ;
/** value of the state when the marker can appear */
OPJ_UINT32 states ;
/** action linked to the marker */
opj_bool ( * handler ) (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
) ;
}
opj_dec_memory_marker_handler_t ;
const opj_dec_memory_marker_handler_t j2k_memory_marker_handler_tab [ ] =
{
# ifdef TODO_MS
{ J2K_MS_SOT , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPHSOT , j2k_read_sot } ,
{ J2K_MS_COD , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_cod } ,
{ J2K_MS_COC , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_coc } ,
{ J2K_MS_RGN , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_rgn } ,
{ J2K_MS_QCD , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_qcd } ,
{ J2K_MS_QCC , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_qcc } ,
{ J2K_MS_POC , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_poc } ,
{ J2K_MS_SIZ , J2K_DEC_STATE_MHSIZ , j2k_read_siz } ,
{ J2K_MS_TLM , J2K_DEC_STATE_MH , j2k_read_tlm } ,
{ J2K_MS_PLM , J2K_DEC_STATE_MH , j2k_read_plm } ,
{ J2K_MS_PLT , J2K_DEC_STATE_TPH , j2k_read_plt } ,
{ J2K_MS_PPM , J2K_DEC_STATE_MH , j2k_read_ppm } ,
{ J2K_MS_PPT , J2K_DEC_STATE_TPH , j2k_read_ppt } ,
{ J2K_MS_SOP , 0 , 0 } ,
{ J2K_MS_CRG , J2K_DEC_STATE_MH , j2k_read_crg } ,
{ J2K_MS_COM , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_com } ,
{ J2K_MS_MCT , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_mct } ,
{ J2K_MS_CBD , J2K_DEC_STATE_MH , j2k_read_cbd } ,
{ J2K_MS_MCC , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_mcc } ,
{ J2K_MS_MCO , J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH , j2k_read_mco } ,
# endif
{ J2K_MS_SOT , J2K_STATE_MH | J2K_STATE_TPHSOT , j2k_read_sot_v2 } ,
{ J2K_MS_COD , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_cod_v2 } ,
{ J2K_MS_COC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_coc_v2 } ,
{ J2K_MS_RGN , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_rgn_v2 } ,
{ J2K_MS_QCD , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_qcd_v2 } ,
{ J2K_MS_QCC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_qcc_v2 } ,
{ J2K_MS_POC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_poc_v2 } ,
{ J2K_MS_SIZ , J2K_STATE_MHSIZ , j2k_read_siz_v2 } ,
{ J2K_MS_TLM , J2K_STATE_MH , j2k_read_tlm_v2 } ,
{ J2K_MS_PLM , J2K_STATE_MH , j2k_read_plm_v2 } ,
{ J2K_MS_PLT , J2K_STATE_TPH , j2k_read_plt_v2 } ,
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{ J2K_MS_PPM , J2K_STATE_MH , j2k_read_ppm_v3 } ,
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{ J2K_MS_PPT , J2K_STATE_TPH , j2k_read_ppt_v2 } ,
{ J2K_MS_SOP , 0 , 0 } ,
{ J2K_MS_CRG , J2K_STATE_MH , j2k_read_crg_v2 } ,
{ J2K_MS_COM , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_com_v2 } ,
{ J2K_MS_MCT , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_mct } ,
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{ J2K_MS_CBD , J2K_STATE_MH , j2k_read_cbd } ,
{ J2K_MS_MCC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_mcc } ,
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{ J2K_MS_MCO , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_mco } ,
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# ifdef USE_JPWL
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# ifdef TODO_MS /* FIXME */
{ J2K_MS_EPC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_epc } ,
{ J2K_MS_EPB , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_epb } ,
{ J2K_MS_ESD , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_esd } ,
{ J2K_MS_RED , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_red } ,
# endif
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# endif /* USE_JPWL */
# ifdef USE_JPSEC
{ J2K_MS_SEC , J2K_DEC_STATE_MH , j2k_read_sec } ,
{ J2K_MS_INSEC , 0 , j2k_read_insec }
# endif /* USE_JPSEC */
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{ J2K_MS_UNK , J2K_STATE_MH | J2K_STATE_TPH , 0 } //j2k_read_unk_v2}
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} ;
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void j2k_read_int16_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_FLOAT32 * l_dest_data = ( OPJ_FLOAT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_UINT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_bytes ( l_src_data , & l_temp , 2 ) ;
l_src_data + = sizeof ( OPJ_INT16 ) ;
* ( l_dest_data + + ) = ( OPJ_FLOAT32 ) l_temp ;
}
}
void j2k_read_int32_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_FLOAT32 * l_dest_data = ( OPJ_FLOAT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_UINT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_bytes ( l_src_data , & l_temp , 4 ) ;
l_src_data + = sizeof ( OPJ_INT32 ) ;
* ( l_dest_data + + ) = ( OPJ_FLOAT32 ) l_temp ;
}
}
void j2k_read_float32_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_FLOAT32 * l_dest_data = ( OPJ_FLOAT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_FLOAT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_float ( l_src_data , & l_temp ) ;
l_src_data + = sizeof ( OPJ_FLOAT32 ) ;
* ( l_dest_data + + ) = l_temp ;
}
}
void j2k_read_float64_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_FLOAT32 * l_dest_data = ( OPJ_FLOAT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_FLOAT64 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_double ( l_src_data , & l_temp ) ;
l_src_data + = sizeof ( OPJ_FLOAT64 ) ;
* ( l_dest_data + + ) = ( OPJ_FLOAT32 ) l_temp ;
}
}
void j2k_read_int16_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_INT32 * l_dest_data = ( OPJ_INT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_UINT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_bytes ( l_src_data , & l_temp , 2 ) ;
l_src_data + = sizeof ( OPJ_INT16 ) ;
* ( l_dest_data + + ) = ( OPJ_INT32 ) l_temp ;
}
}
void j2k_read_int32_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_INT32 * l_dest_data = ( OPJ_INT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_UINT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_bytes ( l_src_data , & l_temp , 4 ) ;
l_src_data + = sizeof ( OPJ_INT32 ) ;
* ( l_dest_data + + ) = ( OPJ_INT32 ) l_temp ;
}
}
void j2k_read_float32_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_INT32 * l_dest_data = ( OPJ_INT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_FLOAT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_float ( l_src_data , & l_temp ) ;
l_src_data + = sizeof ( OPJ_FLOAT32 ) ;
* ( l_dest_data + + ) = ( OPJ_INT32 ) l_temp ;
}
}
void j2k_read_float64_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_src_data = ( OPJ_BYTE * ) p_src_data ;
OPJ_INT32 * l_dest_data = ( OPJ_INT32 * ) p_dest_data ;
OPJ_UINT32 i ;
OPJ_FLOAT64 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
opj_read_double ( l_src_data , & l_temp ) ;
l_src_data + = sizeof ( OPJ_FLOAT64 ) ;
* ( l_dest_data + + ) = ( OPJ_INT32 ) l_temp ;
}
}
void j2k_write_float_to_int16 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_dest_data = ( OPJ_BYTE * ) p_dest_data ;
OPJ_FLOAT32 * l_src_data = ( OPJ_FLOAT32 * ) p_src_data ;
OPJ_UINT32 i ;
OPJ_UINT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
l_temp = ( OPJ_UINT32 ) * ( l_src_data + + ) ;
opj_write_bytes ( l_dest_data , l_temp , sizeof ( OPJ_INT16 ) ) ;
l_dest_data + = sizeof ( OPJ_INT16 ) ;
}
}
void j2k_write_float_to_int32 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_dest_data = ( OPJ_BYTE * ) p_dest_data ;
OPJ_FLOAT32 * l_src_data = ( OPJ_FLOAT32 * ) p_src_data ;
OPJ_UINT32 i ;
OPJ_UINT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
l_temp = ( OPJ_UINT32 ) * ( l_src_data + + ) ;
opj_write_bytes ( l_dest_data , l_temp , sizeof ( OPJ_INT32 ) ) ;
l_dest_data + = sizeof ( OPJ_INT32 ) ;
}
}
void j2k_write_float_to_float ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_dest_data = ( OPJ_BYTE * ) p_dest_data ;
OPJ_FLOAT32 * l_src_data = ( OPJ_FLOAT32 * ) p_src_data ;
OPJ_UINT32 i ;
OPJ_FLOAT32 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
l_temp = ( OPJ_FLOAT32 ) * ( l_src_data + + ) ;
opj_write_float ( l_dest_data , l_temp ) ;
l_dest_data + = sizeof ( OPJ_FLOAT32 ) ;
}
}
void j2k_write_float_to_float64 ( const void * p_src_data , void * p_dest_data , OPJ_UINT32 p_nb_elem )
{
OPJ_BYTE * l_dest_data = ( OPJ_BYTE * ) p_dest_data ;
OPJ_FLOAT32 * l_src_data = ( OPJ_FLOAT32 * ) p_src_data ;
OPJ_UINT32 i ;
OPJ_FLOAT64 l_temp ;
for ( i = 0 ; i < p_nb_elem ; + + i ) {
l_temp = ( OPJ_FLOAT64 ) * ( l_src_data + + ) ;
opj_write_double ( l_dest_data , l_temp ) ;
l_dest_data + = sizeof ( OPJ_FLOAT64 ) ;
}
}
/**
* Converts an enum type progression order to string type .
*
* @ param prg_order the progression order to get .
*
* @ return the string representation of the given progression order .
*/
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char * j2k_convert_progression_order ( OPJ_PROG_ORDER prg_order ) {
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j2k_prog_order_t * po ;
for ( po = j2k_prog_order_list ; po - > enum_prog ! = - 1 ; po + + ) {
if ( po - > enum_prog = = prg_order ) {
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return po - > str_prog ;
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}
}
return po - > str_prog ;
}
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/* ----------------------------------------------------------------------- */
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static int j2k_get_num_tp ( opj_cp_t * cp , int pino , int tileno ) {
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char * prog ;
int i ;
int tpnum = 1 , tpend = 0 ;
opj_tcp_t * tcp = & cp - > tcps [ tileno ] ;
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prog = j2k_convert_progression_order ( tcp - > prg ) ;
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if ( cp - > tp_on = = 1 ) {
for ( i = 0 ; i < 4 ; i + + ) {
if ( tpend ! = 1 ) {
if ( cp - > tp_flag = = prog [ i ] ) {
tpend = 1 ; cp - > tp_pos = i ;
}
switch ( prog [ i ] ) {
case ' C ' :
tpnum = tpnum * tcp - > pocs [ pino ] . compE ;
break ;
case ' R ' :
tpnum = tpnum * tcp - > pocs [ pino ] . resE ;
break ;
case ' P ' :
tpnum = tpnum * tcp - > pocs [ pino ] . prcE ;
break ;
case ' L ' :
tpnum = tpnum * tcp - > pocs [ pino ] . layE ;
break ;
}
}
}
} else {
tpnum = 1 ;
}
return tpnum ;
}
/** mem allocation for TLM marker*/
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int j2k_calculate_tp ( opj_cp_t * cp , int img_numcomp , opj_image_t * image , opj_j2k_t * j2k ) {
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int pino , tileno , totnum_tp = 0 ;
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OPJ_ARG_NOT_USED ( img_numcomp ) ;
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j2k - > cur_totnum_tp = ( int * ) opj_malloc ( cp - > tw * cp - > th * sizeof ( int ) ) ;
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for ( tileno = 0 ; tileno < cp - > tw * cp - > th ; tileno + + ) {
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int cur_totnum_tp = 0 ;
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opj_tcp_t * tcp = & cp - > tcps [ tileno ] ;
for ( pino = 0 ; pino < = tcp - > numpocs ; pino + + ) {
int tp_num = 0 ;
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opj_pi_iterator_t * pi = pi_initialise_encode ( image , cp , tileno , FINAL_PASS ) ;
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if ( ! pi ) { return - 1 ; }
tp_num = j2k_get_num_tp ( cp , pino , tileno ) ;
totnum_tp = totnum_tp + tp_num ;
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cur_totnum_tp = cur_totnum_tp + tp_num ;
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pi_destroy ( pi , cp , tileno ) ;
}
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j2k - > cur_totnum_tp [ tileno ] = cur_totnum_tp ;
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/* INDEX >> */
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if ( j2k - > cstr_info ) {
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j2k - > cstr_info - > tile [ tileno ] . num_tps = cur_totnum_tp ;
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j2k - > cstr_info - > tile [ tileno ] . tp = ( opj_tp_info_t * ) opj_malloc ( cur_totnum_tp * sizeof ( opj_tp_info_t ) ) ;
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}
/* << INDEX */
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}
return totnum_tp ;
}
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static void j2k_write_soc ( opj_j2k_t * j2k ) {
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opj_cio_t * cio = j2k - > cio ;
cio_write ( cio , J2K_MS_SOC , 2 ) ;
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if ( j2k - > cstr_info )
j2k_add_mhmarker ( j2k - > cstr_info , J2K_MS_SOC , cio_tell ( cio ) , 0 ) ;
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/* UniPG>> */
# ifdef USE_JPWL
/* update markers struct */
j2k_add_marker ( j2k - > cstr_info , J2K_MS_SOC , cio_tell ( cio ) - 2 , 2 ) ;
# endif /* USE_JPWL */
/* <<UniPG */
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}
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static void j2k_read_soc ( opj_j2k_t * j2k ) {
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j2k - > state = J2K_STATE_MHSIZ ;
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/* Index */
if ( j2k - > cstr_info ) {
j2k - > cstr_info - > main_head_start = cio_tell ( j2k - > cio ) - 2 ;
j2k - > cstr_info - > codestream_size = cio_numbytesleft ( j2k - > cio ) + 2 - j2k - > cstr_info - > main_head_start ;
}
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}
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/**
* Reads a SOC marker ( Start of Codestream )
* @ param p_header_data the data contained in the SOC box .
* @ param jp2 the jpeg2000 file codec .
* @ param p_header_size the size of the data contained in the SOC marker .
* @ param p_manager the user event manager .
*/
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static opj_bool j2k_read_soc_v2 ( opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager )
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{
OPJ_BYTE l_data [ 2 ] ;
OPJ_UINT32 l_marker ;
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
if ( opj_stream_read_data ( p_stream , l_data , 2 , p_manager ) ! = 2 ) {
return OPJ_FALSE ;
}
opj_read_bytes ( l_data , & l_marker , 2 ) ;
if ( l_marker ! = J2K_MS_SOC ) {
return OPJ_FALSE ;
}
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/* Next marker should be a SIZ marker in the main header */
p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_MHSIZ ;
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/* FIXME move it in a index structure included in p_j2k*/
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p_j2k - > cstr_index - > main_head_start = opj_stream_tell ( p_stream ) - 2 ;
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opj_event_msg_v2 ( p_manager , EVT_INFO , " Start to read j2k main header (%d). \n " , p_j2k - > cstr_index - > main_head_start ) ;
/* Add the marker to the codestream index*/
j2k_add_mhmarker_v2 ( p_j2k - > cstr_index , J2K_MS_SOC , p_j2k - > cstr_index - > main_head_start , 2 ) ;
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return OPJ_TRUE ;
}
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static void j2k_write_siz ( opj_j2k_t * j2k ) {
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int i ;
int lenp , len ;
opj_cio_t * cio = j2k - > cio ;
opj_image_t * image = j2k - > image ;
opj_cp_t * cp = j2k - > cp ;
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cio_write ( cio , J2K_MS_SIZ , 2 ) ; /* SIZ */
lenp = cio_tell ( cio ) ;
cio_skip ( cio , 2 ) ;
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cio_write ( cio , cp - > rsiz , 2 ) ; /* Rsiz (capabilities) */
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cio_write ( cio , image - > x1 , 4 ) ; /* Xsiz */
cio_write ( cio , image - > y1 , 4 ) ; /* Ysiz */
cio_write ( cio , image - > x0 , 4 ) ; /* X0siz */
cio_write ( cio , image - > y0 , 4 ) ; /* Y0siz */
cio_write ( cio , cp - > tdx , 4 ) ; /* XTsiz */
cio_write ( cio , cp - > tdy , 4 ) ; /* YTsiz */
cio_write ( cio , cp - > tx0 , 4 ) ; /* XT0siz */
cio_write ( cio , cp - > ty0 , 4 ) ; /* YT0siz */
cio_write ( cio , image - > numcomps , 2 ) ; /* Csiz */
for ( i = 0 ; i < image - > numcomps ; i + + ) {
cio_write ( cio , image - > comps [ i ] . prec - 1 + ( image - > comps [ i ] . sgnd < < 7 ) , 1 ) ; /* Ssiz_i */
cio_write ( cio , image - > comps [ i ] . dx , 1 ) ; /* XRsiz_i */
cio_write ( cio , image - > comps [ i ] . dy , 1 ) ; /* YRsiz_i */
}
len = cio_tell ( cio ) - lenp ;
cio_seek ( cio , lenp ) ;
cio_write ( cio , len , 2 ) ; /* Lsiz */
cio_seek ( cio , lenp + len ) ;
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if ( j2k - > cstr_info )
j2k_add_mhmarker ( j2k - > cstr_info , J2K_MS_SIZ , lenp , len ) ;
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}
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static void j2k_read_siz ( opj_j2k_t * j2k ) {
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int len , i ;
opj_cio_t * cio = j2k - > cio ;
opj_image_t * image = j2k - > image ;
opj_cp_t * cp = j2k - > cp ;
len = cio_read ( cio , 2 ) ; /* Lsiz */
cio_read ( cio , 2 ) ; /* Rsiz (capabilities) */
image - > x1 = cio_read ( cio , 4 ) ; /* Xsiz */
image - > y1 = cio_read ( cio , 4 ) ; /* Ysiz */
image - > x0 = cio_read ( cio , 4 ) ; /* X0siz */
image - > y0 = cio_read ( cio , 4 ) ; /* Y0siz */
cp - > tdx = cio_read ( cio , 4 ) ; /* XTsiz */
cp - > tdy = cio_read ( cio , 4 ) ; /* YTsiz */
cp - > tx0 = cio_read ( cio , 4 ) ; /* XT0siz */
cp - > ty0 = cio_read ( cio , 4 ) ; /* YT0siz */
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if ( ( image - > x0 < 0 ) | | ( image - > x1 < 0 ) | | ( image - > y0 < 0 ) | | ( image - > y1 < 0 ) ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" %s: invalid image size (x0:%d, x1:%d, y0:%d, y1:%d) \n " ,
image - > x0 , image - > x1 , image - > y0 , image - > y1 ) ;
return ;
}
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image - > numcomps = cio_read ( cio , 2 ) ; /* Csiz */
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
if ( ! ( image - > x1 * image - > y1 ) ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" JPWL: bad image size (%d x %d) \n " ,
image - > x1 , image - > y1 ) ;
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if ( ! JPWL_ASSUME | | JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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}
if ( image - > numcomps ! = ( ( len - 38 ) / 3 ) ) {
opj_event_msg ( j2k - > cinfo , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
" JPWL: Csiz is %d => space in SIZ only for %d comps.!!! \n " ,
image - > numcomps , ( ( len - 38 ) / 3 ) ) ;
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if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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/* we try to correct */
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - trying to adjust this \n " ) ;
if ( image - > numcomps < ( ( len - 38 ) / 3 ) ) {
len = 38 + 3 * image - > numcomps ;
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - setting Lsiz to %d => HYPOTHESIS!!! \n " ,
len ) ;
} else {
image - > numcomps = ( ( len - 38 ) / 3 ) ;
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - setting Csiz to %d => HYPOTHESIS!!! \n " ,
image - > numcomps ) ;
}
}
/* update components number in the jpwl_exp_comps filed */
cp - > exp_comps = image - > numcomps ;
}
# endif /* USE_JPWL */
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image - > comps = ( opj_image_comp_t * ) opj_calloc ( image - > numcomps , sizeof ( opj_image_comp_t ) ) ;
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for ( i = 0 ; i < image - > numcomps ; i + + ) {
int tmp , w , h ;
tmp = cio_read ( cio , 1 ) ; /* Ssiz_i */
image - > comps [ i ] . prec = ( tmp & 0x7f ) + 1 ;
image - > comps [ i ] . sgnd = tmp > > 7 ;
image - > comps [ i ] . dx = cio_read ( cio , 1 ) ; /* XRsiz_i */
image - > comps [ i ] . dy = cio_read ( cio , 1 ) ; /* YRsiz_i */
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters , again */
if ( ! ( image - > comps [ i ] . dx * image - > comps [ i ] . dy ) ) {
opj_event_msg ( j2k - > cinfo , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
" JPWL: bad XRsiz_%d/YRsiz_%d (%d x %d) \n " ,
i , i , image - > comps [ i ] . dx , image - > comps [ i ] . dy ) ;
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if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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/* we try to correct */
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - trying to adjust them \n " ) ;
if ( ! image - > comps [ i ] . dx ) {
image - > comps [ i ] . dx = 1 ;
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - setting XRsiz_%d to %d => HYPOTHESIS!!! \n " ,
i , image - > comps [ i ] . dx ) ;
}
if ( ! image - > comps [ i ] . dy ) {
image - > comps [ i ] . dy = 1 ;
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - setting YRsiz_%d to %d => HYPOTHESIS!!! \n " ,
i , image - > comps [ i ] . dy ) ;
}
}
}
# endif /* USE_JPWL */
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/* TODO: unused ? */
w = int_ceildiv ( image - > x1 - image - > x0 , image - > comps [ i ] . dx ) ;
h = int_ceildiv ( image - > y1 - image - > y0 , image - > comps [ i ] . dy ) ;
image - > comps [ i ] . resno_decoded = 0 ; /* number of resolution decoded */
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image - > comps [ i ] . factor = cp - > reduce ; /* reducing factor per component */
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}
cp - > tw = int_ceildiv ( image - > x1 - cp - > tx0 , cp - > tdx ) ;
cp - > th = int_ceildiv ( image - > y1 - cp - > ty0 , cp - > tdy ) ;
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
if ( ( cp - > tw < 1 ) | | ( cp - > th < 1 ) | | ( cp - > tw > cp - > max_tiles ) | | ( cp - > th > cp - > max_tiles ) ) {
opj_event_msg ( j2k - > cinfo , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
" JPWL: bad number of tiles (%d x %d) \n " ,
cp - > tw , cp - > th ) ;
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if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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/* we try to correct */
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - trying to adjust them \n " ) ;
if ( cp - > tw < 1 ) {
cp - > tw = 1 ;
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - setting %d tiles in x => HYPOTHESIS!!! \n " ,
cp - > tw ) ;
}
if ( cp - > tw > cp - > max_tiles ) {
cp - > tw = 1 ;
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opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - too large x, increase expectance of %d \n "
" - setting %d tiles in x => HYPOTHESIS!!! \n " ,
cp - > max_tiles , cp - > tw ) ;
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}
if ( cp - > th < 1 ) {
cp - > th = 1 ;
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - setting %d tiles in y => HYPOTHESIS!!! \n " ,
cp - > th ) ;
}
if ( cp - > th > cp - > max_tiles ) {
cp - > th = 1 ;
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opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - too large y, increase expectance of %d to continue \n " ,
" - setting %d tiles in y => HYPOTHESIS!!! \n " ,
cp - > max_tiles , cp - > th ) ;
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}
}
}
# endif /* USE_JPWL */
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cp - > tcps = ( opj_tcp_t * ) opj_calloc ( cp - > tw * cp - > th , sizeof ( opj_tcp_t ) ) ;
cp - > tileno = ( int * ) opj_malloc ( cp - > tw * cp - > th * sizeof ( int ) ) ;
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cp - > tileno_size = 0 ;
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
if ( ! cp - > tcps ) {
opj_event_msg ( j2k - > cinfo , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
" JPWL: could not alloc tcps field of cp \n " ) ;
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if ( ! JPWL_ASSUME | | JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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}
}
# endif /* USE_JPWL */
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for ( i = 0 ; i < cp - > tw * cp - > th ; i + + ) {
cp - > tcps [ i ] . POC = 0 ;
cp - > tcps [ i ] . numpocs = 0 ;
cp - > tcps [ i ] . first = 1 ;
}
/* Initialization for PPM marker */
cp - > ppm = 0 ;
cp - > ppm_data = NULL ;
cp - > ppm_data_first = NULL ;
cp - > ppm_previous = 0 ;
cp - > ppm_store = 0 ;
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j2k - > default_tcp - > tccps = ( opj_tccp_t * ) opj_calloc ( image - > numcomps , sizeof ( opj_tccp_t ) ) ;
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for ( i = 0 ; i < cp - > tw * cp - > th ; i + + ) {
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cp - > tcps [ i ] . tccps = ( opj_tccp_t * ) opj_malloc ( image - > numcomps * sizeof ( opj_tccp_t ) ) ;
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}
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j2k - > tile_data = ( unsigned char * * ) opj_calloc ( cp - > tw * cp - > th , sizeof ( unsigned char * ) ) ;
j2k - > tile_len = ( int * ) opj_calloc ( cp - > tw * cp - > th , sizeof ( int ) ) ;
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j2k - > state = J2K_STATE_MH ;
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/* Index */
if ( j2k - > cstr_info ) {
opj_codestream_info_t * cstr_info = j2k - > cstr_info ;
cstr_info - > image_w = image - > x1 - image - > x0 ;
cstr_info - > image_h = image - > y1 - image - > y0 ;
cstr_info - > numcomps = image - > numcomps ;
cstr_info - > tw = cp - > tw ;
cstr_info - > th = cp - > th ;
cstr_info - > tile_x = cp - > tdx ;
cstr_info - > tile_y = cp - > tdy ;
cstr_info - > tile_Ox = cp - > tx0 ;
cstr_info - > tile_Oy = cp - > ty0 ;
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cstr_info - > tile = ( opj_tile_info_t * ) opj_calloc ( cp - > tw * cp - > th , sizeof ( opj_tile_info_t ) ) ;
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}
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}
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/**
* Reads a SIZ marker ( image and tile size )
* @ param p_header_data the data contained in the SIZ box .
* @ param jp2 the jpeg2000 file codec .
* @ param p_header_size the size of the data contained in the SIZ marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_siz_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_size , i ;
OPJ_UINT32 l_nb_comp ;
OPJ_UINT32 l_nb_comp_remain ;
OPJ_UINT32 l_remaining_size ;
OPJ_UINT32 l_nb_tiles ;
OPJ_UINT32 l_tmp ;
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opj_image_t * l_image = 00 ;
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opj_cp_v2_t * l_cp = 00 ;
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opj_image_comp_t * l_img_comp = 00 ;
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opj_tcp_v2_t * l_current_tile_param = 00 ;
// preconditions
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_header_data ! = 00 ) ;
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l_image = p_j2k - > m_private_image ;
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l_cp = & ( p_j2k - > m_cp ) ;
// minimum size == 39 - 3 (= minimum component parameter)
if ( p_header_size < 36 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error with SIZ marker size \n " ) ;
return OPJ_FALSE ;
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}
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l_remaining_size = p_header_size - 36 ;
l_nb_comp = l_remaining_size / 3 ;
l_nb_comp_remain = l_remaining_size % 3 ;
if ( l_nb_comp_remain ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error with SIZ marker size \n " ) ;
return OPJ_FALSE ;
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}
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l_size = p_header_size + 2 ; /* Lsiz */
opj_read_bytes ( p_header_data , & l_tmp , 2 ) ; /* Rsiz (capabilities) */
p_header_data + = 2 ;
l_cp - > rsiz = ( OPJ_RSIZ_CAPABILITIES ) l_tmp ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_image - > x1 , 4 ) ; /* Xsiz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_image - > y1 , 4 ) ; /* Ysiz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_image - > x0 , 4 ) ; /* X0siz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_image - > y0 , 4 ) ; /* Y0siz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_cp - > tdx , 4 ) ; /* XTsiz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_cp - > tdy , 4 ) ; /* YTsiz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_cp - > tx0 , 4 ) ; /* XT0siz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_cp - > ty0 , 4 ) ; /* YT0siz */
p_header_data + = 4 ;
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) & l_tmp , 2 ) ; /* Csiz */
p_header_data + = 2 ;
if ( l_tmp < 16385 )
l_image - > numcomps = ( OPJ_UINT16 ) l_tmp ;
else {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error with SIZ marker: number of component is illegal -> %d \n " , l_tmp ) ;
return OPJ_FALSE ;
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}
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if ( l_image - > numcomps ! = l_nb_comp ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error with SIZ marker: number of component is not compatible with the remaining number of parameters ( %d vs %d) \n " , l_image - > numcomps , l_nb_comp ) ;
return OPJ_FALSE ;
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}
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# ifdef USE_JPWL
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if ( l_cp - > correct ) {
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/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
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if ( ! ( l_image - > x1 * l_image - > y1 ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" JPWL: bad image size (%d x %d) \n " ,
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l_image - > x1 , l_image - > y1 ) ;
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if ( ! JPWL_ASSUME | | JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
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}
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/* FIXME check previously in the function so why keep this piece of code ? Need by the norm ?
if ( l_image - > numcomps ! = ( ( len - 38 ) / 3 ) ) {
opj_event_msg_v2 ( p_manager , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
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" JPWL: Csiz is %d => space in SIZ only for %d comps.!!! \n " ,
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l_image - > numcomps , ( ( len - 38 ) / 3 ) ) ;
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if ( ! JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
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*/ /* we try to correct */
/* opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust this\n");
if ( l_image - > numcomps < ( ( len - 38 ) / 3 ) ) {
len = 38 + 3 * l_image - > numcomps ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - setting Lsiz to %d => HYPOTHESIS!!! \n " ,
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len ) ;
} else {
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l_image - > numcomps = ( ( len - 38 ) / 3 ) ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - setting Csiz to %d => HYPOTHESIS!!! \n " ,
l_image - > numcomps ) ;
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}
}
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*/
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/* update components number in the jpwl_exp_comps filed */
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l_cp - > exp_comps = l_image - > numcomps ;
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}
# endif /* USE_JPWL */
// Allocate the resulting image components
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l_image - > comps = ( opj_image_comp_t * ) opj_calloc ( l_image - > numcomps , sizeof ( opj_image_comp_t ) ) ;
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if ( l_image - > comps = = 00 ) {
l_image - > numcomps = 0 ;
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory to take in charge SIZ marker \n " ) ;
return OPJ_FALSE ;
}
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memset ( l_image - > comps , 0 , l_image - > numcomps * sizeof ( opj_image_comp_t ) ) ;
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l_img_comp = l_image - > comps ;
// Read the component information
for ( i = 0 ; i < l_image - > numcomps ; + + i ) {
OPJ_UINT32 tmp ;
opj_read_bytes ( p_header_data , & tmp , 1 ) ; /* Ssiz_i */
+ + p_header_data ;
l_img_comp - > prec = ( tmp & 0x7f ) + 1 ;
l_img_comp - > sgnd = tmp > > 7 ;
opj_read_bytes ( p_header_data , & tmp , 1 ) ; /* XRsiz_i */
+ + p_header_data ;
l_img_comp - > dx = ( OPJ_INT32 ) tmp ; // should be between 1 and 255
opj_read_bytes ( p_header_data , & tmp , 1 ) ; /* YRsiz_i */
+ + p_header_data ;
l_img_comp - > dy = ( OPJ_INT32 ) tmp ; // should be between 1 and 255
# ifdef USE_JPWL
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if ( l_cp - > correct ) {
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/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters , again */
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if ( ! ( l_image - > comps [ i ] . dx * l_image - > comps [ i ] . dy ) ) {
opj_event_msg_v2 ( p_manager , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
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" JPWL: bad XRsiz_%d/YRsiz_%d (%d x %d) \n " ,
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i , i , l_image - > comps [ i ] . dx , l_image - > comps [ i ] . dy ) ;
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if ( ! JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
/* we try to correct */
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opj_event_msg_v2 ( p_manager , EVT_WARNING , " - trying to adjust them \n " ) ;
if ( ! l_image - > comps [ i ] . dx ) {
l_image - > comps [ i ] . dx = 1 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - setting XRsiz_%d to %d => HYPOTHESIS!!! \n " ,
i , l_image - > comps [ i ] . dx ) ;
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}
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if ( ! l_image - > comps [ i ] . dy ) {
l_image - > comps [ i ] . dy = 1 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - setting YRsiz_%d to %d => HYPOTHESIS!!! \n " ,
i , l_image - > comps [ i ] . dy ) ;
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}
}
}
# endif /* USE_JPWL */
l_img_comp - > resno_decoded = 0 ; /* number of resolution decoded */
l_img_comp - > factor = l_cp - > m_specific_param . m_dec . m_reduce ; /* reducing factor per component */
+ + l_img_comp ;
}
// Compute the number of tiles
l_cp - > tw = int_ceildiv ( l_image - > x1 - l_cp - > tx0 , l_cp - > tdx ) ;
l_cp - > th = int_ceildiv ( l_image - > y1 - l_cp - > ty0 , l_cp - > tdy ) ;
l_nb_tiles = l_cp - > tw * l_cp - > th ;
// Define the tiles which will be decoded
if ( p_j2k - > m_specific_param . m_decoder . m_discard_tiles ) {
p_j2k - > m_specific_param . m_decoder . m_start_tile_x = ( p_j2k - > m_specific_param . m_decoder . m_start_tile_x - l_cp - > tx0 ) / l_cp - > tdx ;
p_j2k - > m_specific_param . m_decoder . m_start_tile_y = ( p_j2k - > m_specific_param . m_decoder . m_start_tile_y - l_cp - > ty0 ) / l_cp - > tdy ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_x = int_ceildiv ( ( p_j2k - > m_specific_param . m_decoder . m_end_tile_x - l_cp - > tx0 ) , l_cp - > tdx ) ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_y = int_ceildiv ( ( p_j2k - > m_specific_param . m_decoder . m_end_tile_y - l_cp - > ty0 ) , l_cp - > tdy ) ;
}
else {
p_j2k - > m_specific_param . m_decoder . m_start_tile_x = 0 ;
p_j2k - > m_specific_param . m_decoder . m_start_tile_y = 0 ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_x = l_cp - > tw ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_y = l_cp - > th ;
}
# ifdef USE_JPWL
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if ( l_cp - > correct ) {
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/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
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if ( ( l_cp - > tw < 1 ) | | ( l_cp - > th < 1 ) | | ( l_cp - > tw > l_cp - > max_tiles ) | | ( l_cp - > th > l_cp - > max_tiles ) ) {
opj_event_msg_v2 ( p_manager , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
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" JPWL: bad number of tiles (%d x %d) \n " ,
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l_cp - > tw , l_cp - > th ) ;
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if ( ! JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
/* we try to correct */
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opj_event_msg_v2 ( p_manager , EVT_WARNING , " - trying to adjust them \n " ) ;
if ( l_cp - > tw < 1 ) {
l_cp - > tw = 1 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - setting %d tiles in x => HYPOTHESIS!!! \n " ,
l_cp - > tw ) ;
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}
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if ( l_cp - > tw > l_cp - > max_tiles ) {
l_cp - > tw = 1 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - too large x, increase expectance of %d \n "
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" - setting %d tiles in x => HYPOTHESIS!!! \n " ,
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l_cp - > max_tiles , l_cp - > tw ) ;
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}
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if ( l_cp - > th < 1 ) {
l_cp - > th = 1 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - setting %d tiles in y => HYPOTHESIS!!! \n " ,
l_cp - > th ) ;
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}
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if ( l_cp - > th > l_cp - > max_tiles ) {
l_cp - > th = 1 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - too large y, increase expectance of %d to continue \n " ,
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" - setting %d tiles in y => HYPOTHESIS!!! \n " ,
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l_cp - > max_tiles , l_cp - > th ) ;
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}
}
}
# endif /* USE_JPWL */
/* memory allocations */
l_cp - > tcps = ( opj_tcp_v2_t * ) opj_calloc ( l_nb_tiles , sizeof ( opj_tcp_v2_t ) ) ;
if ( l_cp - > tcps = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory to take in charge SIZ marker \n " ) ;
return OPJ_FALSE ;
}
memset ( l_cp - > tcps , 0 , l_nb_tiles * sizeof ( opj_tcp_t ) ) ;
# ifdef USE_JPWL
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if ( l_cp - > correct ) {
if ( ! l_cp - > tcps ) {
opj_event_msg_v2 ( p_manager , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
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" JPWL: could not alloc tcps field of cp \n " ) ;
if ( ! JPWL_ASSUME | | JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
}
}
# endif /* USE_JPWL */
p_j2k - > m_specific_param . m_decoder . m_default_tcp - > tccps =
( opj_tccp_t * ) opj_calloc ( l_image - > numcomps , sizeof ( opj_tccp_t ) ) ;
if ( p_j2k - > m_specific_param . m_decoder . m_default_tcp - > tccps = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory to take in charge SIZ marker \n " ) ;
return OPJ_FALSE ;
}
memset ( p_j2k - > m_specific_param . m_decoder . m_default_tcp - > tccps , 0 , l_image - > numcomps * sizeof ( opj_tccp_t ) ) ;
p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_mct_records =
( opj_mct_data_t * ) opj_malloc ( J2K_MCT_DEFAULT_NB_RECORDS * sizeof ( opj_mct_data_t ) ) ;
if ( ! p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_mct_records ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory to take in charge SIZ marker \n " ) ;
return OPJ_FALSE ;
}
memset ( p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_mct_records , 0 , J2K_MCT_DEFAULT_NB_RECORDS * sizeof ( opj_mct_data_t ) ) ;
p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_nb_max_mct_records = J2K_MCT_DEFAULT_NB_RECORDS ;
p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_mcc_records =
( opj_simple_mcc_decorrelation_data_t * )
opj_malloc ( J2K_MCC_DEFAULT_NB_RECORDS * sizeof ( opj_simple_mcc_decorrelation_data_t ) ) ;
if ( ! p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_mcc_records ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory to take in charge SIZ marker \n " ) ;
return OPJ_FALSE ;
}
memset ( p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_mcc_records , 0 , J2K_MCC_DEFAULT_NB_RECORDS * sizeof ( opj_simple_mcc_decorrelation_data_t ) ) ;
p_j2k - > m_specific_param . m_decoder . m_default_tcp - > m_nb_max_mcc_records = J2K_MCC_DEFAULT_NB_RECORDS ;
/* set up default dc level shift */
for ( i = 0 ; i < l_image - > numcomps ; + + i ) {
if ( ! l_image - > comps [ i ] . sgnd ) {
p_j2k - > m_specific_param . m_decoder . m_default_tcp - > tccps [ i ] . m_dc_level_shift = 1 < < ( l_image - > comps [ i ] . prec - 1 ) ;
}
}
l_current_tile_param = l_cp - > tcps ;
for ( i = 0 ; i < l_nb_tiles ; + + i ) {
l_current_tile_param - > tccps = ( opj_tccp_t * ) opj_malloc ( l_image - > numcomps * sizeof ( opj_tccp_t ) ) ;
if ( l_current_tile_param - > tccps = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory to take in charge SIZ marker \n " ) ;
return OPJ_FALSE ;
}
memset ( l_current_tile_param - > tccps , 0 , l_image - > numcomps * sizeof ( opj_tccp_t ) ) ;
+ + l_current_tile_param ;
}
p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_MH ; // FIXME J2K_DEC_STATE_MH;
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opj_image_comp_header_update ( l_image , l_cp ) ;
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return OPJ_TRUE ;
}
static void j2k_write_com ( opj_j2k_t * j2k ) {
unsigned int i ;
int lenp , len ;
if ( j2k - > cp - > comment ) {
opj_cio_t * cio = j2k - > cio ;
char * comment = j2k - > cp - > comment ;
cio_write ( cio , J2K_MS_COM , 2 ) ;
lenp = cio_tell ( cio ) ;
cio_skip ( cio , 2 ) ;
cio_write ( cio , 1 , 2 ) ; /* General use (IS 8859-15:1999 (Latin) values) */
for ( i = 0 ; i < strlen ( comment ) ; i + + ) {
cio_write ( cio , comment [ i ] , 1 ) ;
}
len = cio_tell ( cio ) - lenp ;
cio_seek ( cio , lenp ) ;
cio_write ( cio , len , 2 ) ;
cio_seek ( cio , lenp + len ) ;
if ( j2k - > cstr_info )
j2k_add_mhmarker ( j2k - > cstr_info , J2K_MS_COM , lenp , len ) ;
}
}
static void j2k_read_com ( opj_j2k_t * j2k ) {
int len ;
opj_cio_t * cio = j2k - > cio ;
len = cio_read ( cio , 2 ) ;
cio_skip ( cio , len - 2 ) ;
}
/**
* Reads a COM marker ( comments )
* @ param p_header_data the data contained in the COM box .
* @ param jp2 the jpeg2000 file codec .
* @ param p_header_size the size of the data contained in the COM marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_com_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_header_data ! = 00 ) ;
return OPJ_TRUE ;
}
static void j2k_write_cox ( opj_j2k_t * j2k , int compno ) {
int i ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = & cp - > tcps [ j2k - > curtileno ] ;
opj_tccp_t * tccp = & tcp - > tccps [ compno ] ;
opj_cio_t * cio = j2k - > cio ;
cio_write ( cio , tccp - > numresolutions - 1 , 1 ) ; /* SPcox (D) */
cio_write ( cio , tccp - > cblkw - 2 , 1 ) ; /* SPcox (E) */
cio_write ( cio , tccp - > cblkh - 2 , 1 ) ; /* SPcox (F) */
cio_write ( cio , tccp - > cblksty , 1 ) ; /* SPcox (G) */
cio_write ( cio , tccp - > qmfbid , 1 ) ; /* SPcox (H) */
if ( tccp - > csty & J2K_CCP_CSTY_PRT ) {
for ( i = 0 ; i < tccp - > numresolutions ; i + + ) {
cio_write ( cio , tccp - > prcw [ i ] + ( tccp - > prch [ i ] < < 4 ) , 1 ) ; /* SPcox (I_i) */
}
}
}
static void j2k_read_cox ( opj_j2k_t * j2k , int compno ) {
int i ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = j2k - > state = = J2K_STATE_TPH ? & cp - > tcps [ j2k - > curtileno ] : j2k - > default_tcp ;
opj_tccp_t * tccp = & tcp - > tccps [ compno ] ;
opj_cio_t * cio = j2k - > cio ;
tccp - > numresolutions = cio_read ( cio , 1 ) + 1 ; /* SPcox (D) */
// If user wants to remove more resolutions than the codestream contains, return error
if ( cp - > reduce > = tccp - > numresolutions ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " Error decoding component %d. \n The number of resolutions to remove is higher than the number "
" of resolutions of this component \n Modify the cp_reduce parameter. \n \n " , compno ) ;
j2k - > state | = J2K_STATE_ERR ;
}
tccp - > cblkw = cio_read ( cio , 1 ) + 2 ; /* SPcox (E) */
tccp - > cblkh = cio_read ( cio , 1 ) + 2 ; /* SPcox (F) */
tccp - > cblksty = cio_read ( cio , 1 ) ; /* SPcox (G) */
tccp - > qmfbid = cio_read ( cio , 1 ) ; /* SPcox (H) */
if ( tccp - > csty & J2K_CP_CSTY_PRT ) {
for ( i = 0 ; i < tccp - > numresolutions ; i + + ) {
int tmp = cio_read ( cio , 1 ) ; /* SPcox (I_i) */
tccp - > prcw [ i ] = tmp & 0xf ;
tccp - > prch [ i ] = tmp > > 4 ;
}
}
/* INDEX >> */
if ( j2k - > cstr_info & & compno = = 0 ) {
for ( i = 0 ; i < tccp - > numresolutions ; i + + ) {
if ( tccp - > csty & J2K_CP_CSTY_PRT ) {
j2k - > cstr_info - > tile [ j2k - > curtileno ] . pdx [ i ] = tccp - > prcw [ i ] ;
j2k - > cstr_info - > tile [ j2k - > curtileno ] . pdy [ i ] = tccp - > prch [ i ] ;
}
else {
j2k - > cstr_info - > tile [ j2k - > curtileno ] . pdx [ i ] = 15 ;
j2k - > cstr_info - > tile [ j2k - > curtileno ] . pdx [ i ] = 15 ;
}
}
}
/* << INDEX */
}
static void j2k_write_cod ( opj_j2k_t * j2k ) {
opj_cp_t * cp = NULL ;
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opj_tcp_t * tcp = NULL ;
int lenp , len ;
opj_cio_t * cio = j2k - > cio ;
cio_write ( cio , J2K_MS_COD , 2 ) ; /* COD */
lenp = cio_tell ( cio ) ;
cio_skip ( cio , 2 ) ;
cp = j2k - > cp ;
tcp = & cp - > tcps [ j2k - > curtileno ] ;
cio_write ( cio , tcp - > csty , 1 ) ; /* Scod */
cio_write ( cio , tcp - > prg , 1 ) ; /* SGcod (A) */
cio_write ( cio , tcp - > numlayers , 2 ) ; /* SGcod (B) */
cio_write ( cio , tcp - > mct , 1 ) ; /* SGcod (C) */
j2k_write_cox ( j2k , 0 ) ;
len = cio_tell ( cio ) - lenp ;
cio_seek ( cio , lenp ) ;
cio_write ( cio , len , 2 ) ; /* Lcod */
cio_seek ( cio , lenp + len ) ;
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if ( j2k - > cstr_info )
j2k_add_mhmarker ( j2k - > cstr_info , J2K_MS_COD , lenp , len ) ;
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}
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static void j2k_read_cod ( opj_j2k_t * j2k ) {
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int len , i , pos ;
opj_cio_t * cio = j2k - > cio ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = j2k - > state = = J2K_STATE_TPH ? & cp - > tcps [ j2k - > curtileno ] : j2k - > default_tcp ;
opj_image_t * image = j2k - > image ;
len = cio_read ( cio , 2 ) ; /* Lcod */
tcp - > csty = cio_read ( cio , 1 ) ; /* Scod */
tcp - > prg = ( OPJ_PROG_ORDER ) cio_read ( cio , 1 ) ; /* SGcod (A) */
tcp - > numlayers = cio_read ( cio , 2 ) ; /* SGcod (B) */
tcp - > mct = cio_read ( cio , 1 ) ; /* SGcod (C) */
pos = cio_tell ( cio ) ;
for ( i = 0 ; i < image - > numcomps ; i + + ) {
tcp - > tccps [ i ] . csty = tcp - > csty & J2K_CP_CSTY_PRT ;
cio_seek ( cio , pos ) ;
j2k_read_cox ( j2k , i ) ;
}
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/* Index */
if ( j2k - > cstr_info ) {
opj_codestream_info_t * cstr_info = j2k - > cstr_info ;
cstr_info - > prog = tcp - > prg ;
cstr_info - > numlayers = tcp - > numlayers ;
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cstr_info - > numdecompos = ( int * ) opj_malloc ( image - > numcomps * sizeof ( int ) ) ;
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for ( i = 0 ; i < image - > numcomps ; i + + ) {
cstr_info - > numdecompos [ i ] = tcp - > tccps [ i ] . numresolutions - 1 ;
}
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}
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}
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/**
* Reads a COD marker ( Coding Styke defaults )
* @ param p_header_data the data contained in the COD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the COD marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_cod_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
// loop
OPJ_UINT32 i ;
OPJ_UINT32 l_tmp ;
opj_cp_v2_t * l_cp = 00 ;
opj_tcp_v2_t * l_tcp = 00 ;
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opj_image_t * l_image = 00 ;
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/* preconditions */
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assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_image = p_j2k - > m_private_image ;
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l_cp = & ( p_j2k - > m_cp ) ;
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/* If we are in the first tile-part header of the current tile */
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l_tcp = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ) ?
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& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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/* Make sure room is sufficient */
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if ( p_header_size < 5 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading COD marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_tcp - > csty , 1 ) ; /* Scod */
+ + p_header_data ;
opj_read_bytes ( p_header_data , & l_tmp , 1 ) ; /* SGcod (A) */
+ + p_header_data ;
l_tcp - > prg = ( OPJ_PROG_ORDER ) l_tmp ;
opj_read_bytes ( p_header_data , & l_tcp - > numlayers , 2 ) ; /* SGcod (B) */
p_header_data + = 2 ;
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// If user didn't set a number layer to decode take the max specify in the codestream.
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if ( l_cp - > m_specific_param . m_dec . m_layer ) {
l_tcp - > num_layers_to_decode = l_cp - > m_specific_param . m_dec . m_layer ;
}
else {
l_tcp - > num_layers_to_decode = l_tcp - > numlayers ;
}
opj_read_bytes ( p_header_data , & l_tcp - > mct , 1 ) ; /* SGcod (C) */
+ + p_header_data ;
p_header_size - = 5 ;
for ( i = 0 ; i < l_image - > numcomps ; + + i ) {
l_tcp - > tccps [ i ] . csty = l_tcp - > csty & J2K_CCP_CSTY_PRT ;
}
if ( ! j2k_read_SPCod_SPCoc ( p_j2k , 0 , p_header_data , & p_header_size , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading COD marker \n " ) ;
return OPJ_FALSE ;
}
if ( p_header_size ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading COD marker \n " ) ;
return OPJ_FALSE ;
}
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/* Apply the coding style to other components of the current tile or the m_default_tcp*/
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j2k_copy_tile_component_parameters ( p_j2k ) ;
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/* Index */
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# ifdef WIP_REMOVE_MSD
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if ( p_j2k - > cstr_info ) {
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//opj_codestream_info_t *l_cstr_info = p_j2k->cstr_info;
p_j2k - > cstr_info - > prog = l_tcp - > prg ;
p_j2k - > cstr_info - > numlayers = l_tcp - > numlayers ;
p_j2k - > cstr_info - > numdecompos = ( OPJ_INT32 * ) opj_malloc ( l_image - > numcomps * sizeof ( OPJ_UINT32 ) ) ;
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for ( i = 0 ; i < l_image - > numcomps ; + + i ) {
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p_j2k - > cstr_info - > numdecompos [ i ] = l_tcp - > tccps [ i ] . numresolutions - 1 ;
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}
}
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# endif
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return OPJ_TRUE ;
}
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static void j2k_write_coc ( opj_j2k_t * j2k , int compno ) {
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int lenp , len ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = & cp - > tcps [ j2k - > curtileno ] ;
opj_image_t * image = j2k - > image ;
opj_cio_t * cio = j2k - > cio ;
cio_write ( cio , J2K_MS_COC , 2 ) ; /* COC */
lenp = cio_tell ( cio ) ;
cio_skip ( cio , 2 ) ;
cio_write ( cio , compno , image - > numcomps < = 256 ? 1 : 2 ) ; /* Ccoc */
cio_write ( cio , tcp - > tccps [ compno ] . csty , 1 ) ; /* Scoc */
j2k_write_cox ( j2k , compno ) ;
len = cio_tell ( cio ) - lenp ;
cio_seek ( cio , lenp ) ;
cio_write ( cio , len , 2 ) ; /* Lcoc */
cio_seek ( cio , lenp + len ) ;
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}
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static void j2k_read_coc ( opj_j2k_t * j2k ) {
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int len , compno ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = j2k - > state = = J2K_STATE_TPH ? & cp - > tcps [ j2k - > curtileno ] : j2k - > default_tcp ;
opj_image_t * image = j2k - > image ;
opj_cio_t * cio = j2k - > cio ;
len = cio_read ( cio , 2 ) ; /* Lcoc */
compno = cio_read ( cio , image - > numcomps < = 256 ? 1 : 2 ) ; /* Ccoc */
tcp - > tccps [ compno ] . csty = cio_read ( cio , 1 ) ; /* Scoc */
j2k_read_cox ( j2k , compno ) ;
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}
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/**
* Reads a COC marker ( Coding Style Component )
* @ param p_header_data the data contained in the COC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the COC marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_coc_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
opj_cp_v2_t * l_cp = NULL ;
opj_tcp_v2_t * l_tcp = NULL ;
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opj_image_t * l_image = NULL ;
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OPJ_UINT32 l_comp_room ;
OPJ_UINT32 l_comp_no ;
// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
l_cp = & ( p_j2k - > m_cp ) ;
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l_tcp = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ) ? /*FIXME J2K_DEC_STATE_TPH*/
& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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l_image = p_j2k - > m_private_image ;
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l_comp_room = l_image - > numcomps < = 256 ? 1 : 2 ;
// make sure room is sufficient
if ( p_header_size < l_comp_room + 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading COC marker \n " ) ;
return OPJ_FALSE ;
}
p_header_size - = l_comp_room + 1 ;
opj_read_bytes ( p_header_data , & l_comp_no , l_comp_room ) ; /* Ccoc */
p_header_data + = l_comp_room ;
if ( l_comp_no > = l_image - > numcomps ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading COC marker (bad number of components) \n " ) ;
return OPJ_FALSE ;
}
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opj_read_bytes ( p_header_data , & l_tcp - > tccps [ l_comp_no ] . csty , 1 ) ; /* Scoc */
+ + p_header_data ;
if ( ! j2k_read_SPCod_SPCoc ( p_j2k , l_comp_no , p_header_data , & p_header_size , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading COC marker \n " ) ;
return OPJ_FALSE ;
}
if ( p_header_size ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading COC marker \n " ) ;
return OPJ_FALSE ;
}
return OPJ_TRUE ;
}
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static void j2k_write_qcx ( opj_j2k_t * j2k , int compno ) {
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int bandno , numbands ;
int expn , mant ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = & cp - > tcps [ j2k - > curtileno ] ;
opj_tccp_t * tccp = & tcp - > tccps [ compno ] ;
opj_cio_t * cio = j2k - > cio ;
cio_write ( cio , tccp - > qntsty + ( tccp - > numgbits < < 5 ) , 1 ) ; /* Sqcx */
numbands = tccp - > qntsty = = J2K_CCP_QNTSTY_SIQNT ? 1 : tccp - > numresolutions * 3 - 2 ;
for ( bandno = 0 ; bandno < numbands ; bandno + + ) {
expn = tccp - > stepsizes [ bandno ] . expn ;
mant = tccp - > stepsizes [ bandno ] . mant ;
if ( tccp - > qntsty = = J2K_CCP_QNTSTY_NOQNT ) {
cio_write ( cio , expn < < 3 , 1 ) ; /* SPqcx_i */
} else {
cio_write ( cio , ( expn < < 11 ) + mant , 2 ) ; /* SPqcx_i */
}
}
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}
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static void j2k_read_qcx ( opj_j2k_t * j2k , int compno , int len ) {
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int tmp ;
int bandno , numbands ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = j2k - > state = = J2K_STATE_TPH ? & cp - > tcps [ j2k - > curtileno ] : j2k - > default_tcp ;
opj_tccp_t * tccp = & tcp - > tccps [ compno ] ;
opj_cio_t * cio = j2k - > cio ;
tmp = cio_read ( cio , 1 ) ; /* Sqcx */
tccp - > qntsty = tmp & 0x1f ;
tccp - > numgbits = tmp > > 5 ;
numbands = ( tccp - > qntsty = = J2K_CCP_QNTSTY_SIQNT ) ?
1 : ( ( tccp - > qntsty = = J2K_CCP_QNTSTY_NOQNT ) ? len - 1 : ( len - 1 ) / 2 ) ;
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
/* if JPWL is on, we check whether there are too many subbands */
if ( ( numbands < 0 ) | | ( numbands > = J2K_MAXBANDS ) ) {
opj_event_msg ( j2k - > cinfo , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
" JPWL: bad number of subbands in Sqcx (%d) \n " ,
numbands ) ;
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if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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/* we try to correct */
numbands = 1 ;
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opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - trying to adjust them \n "
" - setting number of bands to %d => HYPOTHESIS!!! \n " ,
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numbands ) ;
} ;
} ;
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# else
/* We check whether there are too many subbands */
if ( ( numbands < 0 ) | | ( numbands > = J2K_MAXBANDS ) ) {
opj_event_msg ( j2k - > cinfo , EVT_WARNING ,
" bad number of subbands in Sqcx (%d) regarding to J2K_MAXBANDS (%d) \n "
" - limiting number of bands to J2K_MAXBANDS and try to move to the next markers \n " , numbands , J2K_MAXBANDS ) ;
}
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# endif /* USE_JPWL */
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for ( bandno = 0 ; bandno < numbands ; bandno + + ) {
int expn , mant ;
if ( tccp - > qntsty = = J2K_CCP_QNTSTY_NOQNT ) {
expn = cio_read ( cio , 1 ) > > 3 ; /* SPqcx_i */
mant = 0 ;
} else {
tmp = cio_read ( cio , 2 ) ; /* SPqcx_i */
expn = tmp > > 11 ;
mant = tmp & 0x7ff ;
}
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if ( bandno < J2K_MAXBANDS ) {
tccp - > stepsizes [ bandno ] . expn = expn ;
tccp - > stepsizes [ bandno ] . mant = mant ;
}
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}
/* Add Antonin : if scalar_derived -> compute other stepsizes */
if ( tccp - > qntsty = = J2K_CCP_QNTSTY_SIQNT ) {
for ( bandno = 1 ; bandno < J2K_MAXBANDS ; bandno + + ) {
tccp - > stepsizes [ bandno ] . expn =
( ( tccp - > stepsizes [ 0 ] . expn ) - ( ( bandno - 1 ) / 3 ) > 0 ) ?
( tccp - > stepsizes [ 0 ] . expn ) - ( ( bandno - 1 ) / 3 ) : 0 ;
tccp - > stepsizes [ bandno ] . mant = tccp - > stepsizes [ 0 ] . mant ;
}
}
/* ddA */
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}
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static void j2k_write_qcd ( opj_j2k_t * j2k ) {
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int lenp , len ;
opj_cio_t * cio = j2k - > cio ;
cio_write ( cio , J2K_MS_QCD , 2 ) ; /* QCD */
lenp = cio_tell ( cio ) ;
cio_skip ( cio , 2 ) ;
j2k_write_qcx ( j2k , 0 ) ;
len = cio_tell ( cio ) - lenp ;
cio_seek ( cio , lenp ) ;
cio_write ( cio , len , 2 ) ; /* Lqcd */
cio_seek ( cio , lenp + len ) ;
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if ( j2k - > cstr_info )
j2k_add_mhmarker ( j2k - > cstr_info , J2K_MS_QCD , lenp , len ) ;
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}
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static void j2k_read_qcd ( opj_j2k_t * j2k ) {
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int len , i , pos ;
opj_cio_t * cio = j2k - > cio ;
opj_image_t * image = j2k - > image ;
len = cio_read ( cio , 2 ) ; /* Lqcd */
pos = cio_tell ( cio ) ;
for ( i = 0 ; i < image - > numcomps ; i + + ) {
cio_seek ( cio , pos ) ;
j2k_read_qcx ( j2k , i , len - 2 ) ;
}
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}
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/**
* Reads a QCD marker ( Quantization defaults )
* @ param p_header_data the data contained in the QCD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the QCD marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_qcd_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
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/* preconditions */
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assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
if ( ! j2k_read_SQcd_SQcc ( p_j2k , 0 , p_header_data , & p_header_size , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading QCD marker \n " ) ;
return OPJ_FALSE ;
}
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if ( p_header_size ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading QCD marker \n " ) ;
return OPJ_FALSE ;
}
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/* Apply the quantization parameters to other components of the current tile or the m_default_tcp */
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j2k_copy_tile_quantization_parameters ( p_j2k ) ;
return OPJ_TRUE ;
}
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static void j2k_write_qcc ( opj_j2k_t * j2k , int compno ) {
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int lenp , len ;
opj_cio_t * cio = j2k - > cio ;
cio_write ( cio , J2K_MS_QCC , 2 ) ; /* QCC */
lenp = cio_tell ( cio ) ;
cio_skip ( cio , 2 ) ;
cio_write ( cio , compno , j2k - > image - > numcomps < = 256 ? 1 : 2 ) ; /* Cqcc */
j2k_write_qcx ( j2k , compno ) ;
len = cio_tell ( cio ) - lenp ;
cio_seek ( cio , lenp ) ;
cio_write ( cio , len , 2 ) ; /* Lqcc */
cio_seek ( cio , lenp + len ) ;
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}
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static void j2k_read_qcc ( opj_j2k_t * j2k ) {
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int len , compno ;
int numcomp = j2k - > image - > numcomps ;
opj_cio_t * cio = j2k - > cio ;
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len = cio_read ( cio , 2 ) ; /* Lqcc */
compno = cio_read ( cio , numcomp < = 256 ? 1 : 2 ) ; /* Cqcc */
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
static int backup_compno = 0 ;
/* compno is negative or larger than the number of components!!! */
if ( ( compno < 0 ) | | ( compno > = numcomp ) ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" JPWL: bad component number in QCC (%d out of a maximum of %d) \n " ,
compno , numcomp ) ;
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if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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/* we try to correct */
compno = backup_compno % numcomp ;
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opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - trying to adjust this \n "
" - setting component number to %d \n " ,
compno ) ;
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}
/* keep your private count of tiles */
backup_compno + + ;
} ;
# endif /* USE_JPWL */
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j2k_read_qcx ( j2k , compno , len - 2 - ( numcomp < = 256 ? 1 : 2 ) ) ;
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}
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/**
* Reads a QCC marker ( Quantization component )
* @ param p_header_data the data contained in the QCC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the QCC marker .
* @ param p_manager the user event manager .
*/
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opj_bool j2k_read_qcc_v2 ( opj_j2k_v2_t * p_j2k ,
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OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager )
{
OPJ_UINT32 l_num_comp , l_comp_no ;
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/* preconditions */
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assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_num_comp = p_j2k - > m_private_image - > numcomps ;
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if ( l_num_comp < = 256 ) {
if ( p_header_size < 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading QCC marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_comp_no , 1 ) ;
+ + p_header_data ;
- - p_header_size ;
}
else {
if ( p_header_size < 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading QCC marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_comp_no , 2 ) ;
p_header_data + = 2 ;
p_header_size - = 2 ;
}
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# ifdef USE_JPWL
if ( p_j2k - > m_cp . correct ) {
static OPJ_UINT32 backup_compno = 0 ;
/* compno is negative or larger than the number of components!!! */
if ( ( l_comp_no < 0 ) | | ( l_comp_no > = l_num_comp ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR ,
" JPWL: bad component number in QCC (%d out of a maximum of %d) \n " ,
l_comp_no , l_num_comp ) ;
if ( ! JPWL_ASSUME ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
}
/* we try to correct */
l_comp_no = backup_compno % l_num_comp ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - trying to adjust this \n "
" - setting component number to %d \n " ,
l_comp_no ) ;
}
/* keep your private count of tiles */
backup_compno + + ;
} ;
# endif /* USE_JPWL */
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if ( ! j2k_read_SQcd_SQcc ( p_j2k , l_comp_no , p_header_data , & p_header_size , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading QCC marker \n " ) ;
return OPJ_FALSE ;
}
if ( p_header_size ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading QCC marker \n " ) ;
return OPJ_FALSE ;
}
return OPJ_TRUE ;
}
static void j2k_write_poc ( opj_j2k_t * j2k ) {
int len , numpchgs , i ;
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int numcomps = j2k - > image - > numcomps ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = & cp - > tcps [ j2k - > curtileno ] ;
opj_tccp_t * tccp = & tcp - > tccps [ 0 ] ;
opj_cio_t * cio = j2k - > cio ;
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numpchgs = 1 + tcp - > numpocs ;
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cio_write ( cio , J2K_MS_POC , 2 ) ; /* POC */
len = 2 + ( 5 + 2 * ( numcomps < = 256 ? 1 : 2 ) ) * numpchgs ;
cio_write ( cio , len , 2 ) ; /* Lpoc */
for ( i = 0 ; i < numpchgs ; i + + ) {
opj_poc_t * poc = & tcp - > pocs [ i ] ;
cio_write ( cio , poc - > resno0 , 1 ) ; /* RSpoc_i */
cio_write ( cio , poc - > compno0 , ( numcomps < = 256 ? 1 : 2 ) ) ; /* CSpoc_i */
cio_write ( cio , poc - > layno1 , 2 ) ; /* LYEpoc_i */
poc - > layno1 = int_min ( poc - > layno1 , tcp - > numlayers ) ;
cio_write ( cio , poc - > resno1 , 1 ) ; /* REpoc_i */
poc - > resno1 = int_min ( poc - > resno1 , tccp - > numresolutions ) ;
cio_write ( cio , poc - > compno1 , ( numcomps < = 256 ? 1 : 2 ) ) ; /* CEpoc_i */
poc - > compno1 = int_min ( poc - > compno1 , numcomps ) ;
cio_write ( cio , poc - > prg , 1 ) ; /* Ppoc_i */
}
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}
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static void j2k_read_poc ( opj_j2k_t * j2k ) {
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int len , numpchgs , i , old_poc ;
int numcomps = j2k - > image - > numcomps ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = j2k - > state = = J2K_STATE_TPH ? & cp - > tcps [ j2k - > curtileno ] : j2k - > default_tcp ;
opj_cio_t * cio = j2k - > cio ;
old_poc = tcp - > POC ? tcp - > numpocs + 1 : 0 ;
tcp - > POC = 1 ;
len = cio_read ( cio , 2 ) ; /* Lpoc */
numpchgs = ( len - 2 ) / ( 5 + 2 * ( numcomps < = 256 ? 1 : 2 ) ) ;
for ( i = old_poc ; i < numpchgs + old_poc ; i + + ) {
opj_poc_t * poc ;
poc = & tcp - > pocs [ i ] ;
poc - > resno0 = cio_read ( cio , 1 ) ; /* RSpoc_i */
poc - > compno0 = cio_read ( cio , numcomps < = 256 ? 1 : 2 ) ; /* CSpoc_i */
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poc - > layno1 = cio_read ( cio , 2 ) ; /* LYEpoc_i */
poc - > resno1 = cio_read ( cio , 1 ) ; /* REpoc_i */
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poc - > compno1 = int_min (
cio_read ( cio , numcomps < = 256 ? 1 : 2 ) , ( unsigned int ) numcomps ) ; /* CEpoc_i */
poc - > prg = ( OPJ_PROG_ORDER ) cio_read ( cio , 1 ) ; /* Ppoc_i */
}
tcp - > numpocs = numpchgs + old_poc - 1 ;
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}
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/**
* Reads a POC marker ( Progression Order Change )
*
* @ param p_header_data the data contained in the POC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the POC marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_poc_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager )
{
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OPJ_UINT32 i , l_nb_comp , l_tmp ;
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opj_image_t * l_image = 00 ;
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OPJ_UINT32 l_old_poc_nb , l_current_poc_nb , l_current_poc_remaining ;
OPJ_UINT32 l_chunk_size , l_comp_room ;
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opj_cp_v2_t * l_cp = 00 ;
opj_tcp_v2_t * l_tcp = 00 ;
opj_poc_t * l_current_poc = 00 ;
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/* preconditions */
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assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_image = p_j2k - > m_private_image ;
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l_nb_comp = l_image - > numcomps ;
if ( l_nb_comp < = 256 ) {
l_comp_room = 1 ;
}
else {
l_comp_room = 2 ;
}
l_chunk_size = 5 + 2 * l_comp_room ;
l_current_poc_nb = p_header_size / l_chunk_size ;
l_current_poc_remaining = p_header_size % l_chunk_size ;
if ( ( l_current_poc_nb < = 0 ) | | ( l_current_poc_remaining ! = 0 ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading POC marker \n " ) ;
return OPJ_FALSE ;
}
l_cp = & ( p_j2k - > m_cp ) ;
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l_tcp = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ) ?
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& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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l_old_poc_nb = l_tcp - > POC ? l_tcp - > numpocs + 1 : 0 ;
l_current_poc_nb + = l_old_poc_nb ;
assert ( l_current_poc_nb < 32 ) ;
/* now poc is in use.*/
l_tcp - > POC = 1 ;
l_current_poc = & l_tcp - > pocs [ l_old_poc_nb ] ;
for ( i = l_old_poc_nb ; i < l_current_poc_nb ; + + i ) {
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opj_read_bytes ( p_header_data , & ( l_current_poc - > resno0 ) , 1 ) ; /* RSpoc_i */
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+ + p_header_data ;
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opj_read_bytes ( p_header_data , & ( l_current_poc - > compno0 ) , l_comp_room ) ; /* CSpoc_i */
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p_header_data + = l_comp_room ;
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opj_read_bytes ( p_header_data , & ( l_current_poc - > layno1 ) , 2 ) ; /* LYEpoc_i */
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p_header_data + = 2 ;
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opj_read_bytes ( p_header_data , & ( l_current_poc - > resno1 ) , 1 ) ; /* REpoc_i */
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+ + p_header_data ;
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opj_read_bytes ( p_header_data , & ( l_current_poc - > compno1 ) , l_comp_room ) ; /* CEpoc_i */
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p_header_data + = l_comp_room ;
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opj_read_bytes ( p_header_data , & l_tmp , 1 ) ; /* Ppoc_i */
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+ + p_header_data ;
l_current_poc - > prg = ( OPJ_PROG_ORDER ) l_tmp ;
/* make sure comp is in acceptable bounds */
l_current_poc - > compno1 = uint_min ( l_current_poc - > compno1 , l_nb_comp ) ;
+ + l_current_poc ;
}
l_tcp - > numpocs = l_current_poc_nb - 1 ;
return OPJ_TRUE ;
}
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static void j2k_read_crg ( opj_j2k_t * j2k ) {
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int len , i , Xcrg_i , Ycrg_i ;
opj_cio_t * cio = j2k - > cio ;
int numcomps = j2k - > image - > numcomps ;
len = cio_read ( cio , 2 ) ; /* Lcrg */
for ( i = 0 ; i < numcomps ; i + + ) {
Xcrg_i = cio_read ( cio , 2 ) ; /* Xcrg_i */
Ycrg_i = cio_read ( cio , 2 ) ; /* Ycrg_i */
}
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}
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/**
* Reads a CRG marker ( Component registration )
*
* @ param p_header_data the data contained in the TLM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the TLM marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_crg_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_nb_comp ;
// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_nb_comp = p_j2k - > m_private_image - > numcomps ;
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if ( p_header_size ! = l_nb_comp * 4 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading CRG marker \n " ) ;
return OPJ_FALSE ;
}
/* Do not care of this at the moment since only local variables are set here */
/*
for
( i = 0 ; i < l_nb_comp ; + + i )
{
opj_read_bytes ( p_header_data , & l_Xcrg_i , 2 ) ; // Xcrg_i
p_header_data + = 2 ;
opj_read_bytes ( p_header_data , & l_Ycrg_i , 2 ) ; // Xcrg_i
p_header_data + = 2 ;
}
*/
return OPJ_TRUE ;
}
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static void j2k_read_tlm ( opj_j2k_t * j2k ) {
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int len , Ztlm , Stlm , ST , SP , tile_tlm , i ;
long int Ttlm_i , Ptlm_i ;
opj_cio_t * cio = j2k - > cio ;
len = cio_read ( cio , 2 ) ; /* Ltlm */
Ztlm = cio_read ( cio , 1 ) ; /* Ztlm */
Stlm = cio_read ( cio , 1 ) ; /* Stlm */
ST = ( ( Stlm > > 4 ) & 0x01 ) + ( ( Stlm > > 4 ) & 0x02 ) ;
SP = ( Stlm > > 6 ) & 0x01 ;
tile_tlm = ( len - 4 ) / ( ( SP + 1 ) * 2 + ST ) ;
for ( i = 0 ; i < tile_tlm ; i + + ) {
Ttlm_i = cio_read ( cio , ST ) ; /* Ttlm_i */
Ptlm_i = cio_read ( cio , SP ? 4 : 2 ) ; /* Ptlm_i */
}
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}
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/**
* Reads a TLM marker ( Tile Length Marker )
*
* @ param p_header_data the data contained in the TLM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the TLM marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_tlm_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_Ztlm , l_Stlm , l_ST , l_SP , l_tot_num_tp , l_tot_num_tp_remaining , l_quotient , l_Ptlm_size ;
// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
if ( p_header_size < 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading TLM marker \n " ) ;
return OPJ_FALSE ;
}
p_header_size - = 2 ;
opj_read_bytes ( p_header_data , & l_Ztlm , 1 ) ; /* Ztlm */
+ + p_header_data ;
opj_read_bytes ( p_header_data , & l_Stlm , 1 ) ; /* Stlm */
+ + p_header_data ;
l_ST = ( ( l_Stlm > > 4 ) & 0x3 ) ;
l_SP = ( l_Stlm > > 6 ) & 0x1 ;
l_Ptlm_size = ( l_SP + 1 ) * 2 ;
l_quotient = l_Ptlm_size + l_ST ;
l_tot_num_tp = p_header_size / l_quotient ;
l_tot_num_tp_remaining = p_header_size % l_quotient ;
if ( l_tot_num_tp_remaining ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading TLM marker \n " ) ;
return OPJ_FALSE ;
}
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/* FIXME Do not care of this at the moment since only local variables are set here */
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/*
for
( i = 0 ; i < l_tot_num_tp ; + + i )
{
opj_read_bytes ( p_header_data , & l_Ttlm_i , l_ST ) ; // Ttlm_i
p_header_data + = l_ST ;
opj_read_bytes ( p_header_data , & l_Ptlm_i , l_Ptlm_size ) ; // Ptlm_i
p_header_data + = l_Ptlm_size ;
} */
return OPJ_TRUE ;
}
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static void j2k_read_plm ( opj_j2k_t * j2k ) {
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int len , i , Zplm , Nplm , add , packet_len = 0 ;
opj_cio_t * cio = j2k - > cio ;
len = cio_read ( cio , 2 ) ; /* Lplm */
Zplm = cio_read ( cio , 1 ) ; /* Zplm */
len - = 3 ;
while ( len > 0 ) {
Nplm = cio_read ( cio , 4 ) ; /* Nplm */
len - = 4 ;
for ( i = Nplm ; i > 0 ; i - - ) {
add = cio_read ( cio , 1 ) ;
len - - ;
packet_len = ( packet_len < < 7 ) + add ; /* Iplm_ij */
if ( ( add & 0x80 ) = = 0 ) {
/* New packet */
packet_len = 0 ;
}
if ( len < = 0 )
break ;
}
}
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}
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/**
* Reads a PLM marker ( Packet length , main header marker )
*
* @ param p_header_data the data contained in the TLM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the TLM marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_plm_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
if ( p_header_size < 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PLM marker \n " ) ;
return OPJ_FALSE ;
}
/* Do not care of this at the moment since only local variables are set here */
/*
opj_read_bytes ( p_header_data , & l_Zplm , 1 ) ; // Zplm
+ + p_header_data ;
- - p_header_size ;
while
( p_header_size > 0 )
{
opj_read_bytes ( p_header_data , & l_Nplm , 1 ) ; // Nplm
+ + p_header_data ;
p_header_size - = ( 1 + l_Nplm ) ;
if
( p_header_size < 0 )
{
opj_event_msg ( p_manager , EVT_ERROR , " Error reading PLM marker \n " ) ;
return false ;
}
for
( i = 0 ; i < l_Nplm ; + + i )
{
opj_read_bytes ( p_header_data , & l_tmp , 1 ) ; // Iplm_ij
+ + p_header_data ;
// take only the last seven bytes
l_packet_len | = ( l_tmp & 0x7f ) ;
if
( l_tmp & 0x80 )
{
l_packet_len < < = 7 ;
}
else
{
// store packet length and proceed to next packet
l_packet_len = 0 ;
}
}
if
( l_packet_len ! = 0 )
{
opj_event_msg ( p_manager , EVT_ERROR , " Error reading PLM marker \n " ) ;
return false ;
}
}
*/
return OPJ_TRUE ;
}
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static void j2k_read_plt ( opj_j2k_t * j2k ) {
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int len , i , Zplt , packet_len = 0 , add ;
opj_cio_t * cio = j2k - > cio ;
len = cio_read ( cio , 2 ) ; /* Lplt */
Zplt = cio_read ( cio , 1 ) ; /* Zplt */
for ( i = len - 3 ; i > 0 ; i - - ) {
add = cio_read ( cio , 1 ) ;
packet_len = ( packet_len < < 7 ) + add ; /* Iplt_i */
if ( ( add & 0x80 ) = = 0 ) {
/* New packet */
packet_len = 0 ;
}
}
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}
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/**
* Reads a PLT marker ( Packet length , tile - part header )
*
* @ param p_header_data the data contained in the PLT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the PLT marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_plt_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_Zplt , l_tmp , l_packet_len = 0 , i ;
// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
if ( p_header_size < 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PLM marker \n " ) ;
return OPJ_FALSE ;
}
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opj_read_bytes ( p_header_data , & l_Zplt , 1 ) ; /* Zplt */
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+ + p_header_data ;
- - p_header_size ;
for ( i = 0 ; i < p_header_size ; + + i ) {
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opj_read_bytes ( p_header_data , & l_tmp , 1 ) ; /* Iplt_ij */
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+ + p_header_data ;
// take only the last seven bytes
l_packet_len | = ( l_tmp & 0x7f ) ;
if ( l_tmp & 0x80 ) {
l_packet_len < < = 7 ;
}
else {
// store packet length and proceed to next packet
l_packet_len = 0 ;
}
}
if ( l_packet_len ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PLM marker \n " ) ;
return OPJ_FALSE ;
}
return OPJ_TRUE ;
}
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static void j2k_read_ppm ( opj_j2k_t * j2k ) {
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int len , Z_ppm , i , j ;
int N_ppm ;
opj_cp_t * cp = j2k - > cp ;
opj_cio_t * cio = j2k - > cio ;
len = cio_read ( cio , 2 ) ;
cp - > ppm = 1 ;
Z_ppm = cio_read ( cio , 1 ) ; /* Z_ppm */
len - = 3 ;
while ( len > 0 ) {
if ( cp - > ppm_previous = = 0 ) {
N_ppm = cio_read ( cio , 4 ) ; /* N_ppm */
len - = 4 ;
} else {
N_ppm = cp - > ppm_previous ;
}
j = cp - > ppm_store ;
if ( Z_ppm = = 0 ) { /* First PPM marker */
cp - > ppm_data = ( unsigned char * ) opj_malloc ( N_ppm * sizeof ( unsigned char ) ) ;
cp - > ppm_data_first = cp - > ppm_data ;
cp - > ppm_len = N_ppm ;
} else { /* NON-first PPM marker */
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cp - > ppm_data = ( unsigned char * ) opj_realloc ( cp - > ppm_data , ( N_ppm + cp - > ppm_store ) * sizeof ( unsigned char ) ) ;
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# ifdef USE_JPWL
/* this memory allocation check could be done even in non-JPWL cases */
if ( cp - > correct ) {
if ( ! cp - > ppm_data ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" JPWL: failed memory allocation during PPM marker parsing (pos. %x) \n " ,
cio_tell ( cio ) ) ;
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if ( ! JPWL_ASSUME | | JPWL_ASSUME ) {
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opj_free ( cp - > ppm_data ) ;
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opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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}
}
# endif
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cp - > ppm_data_first = cp - > ppm_data ;
cp - > ppm_len = N_ppm + cp - > ppm_store ;
}
for ( i = N_ppm ; i > 0 ; i - - ) { /* Read packet header */
cp - > ppm_data [ j ] = cio_read ( cio , 1 ) ;
j + + ;
len - - ;
if ( len = = 0 )
break ; /* Case of non-finished packet header in present marker but finished in next one */
}
cp - > ppm_previous = i - 1 ;
cp - > ppm_store = j ;
}
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}
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/**
* Reads a PPM marker ( Packed packet headers , main header )
*
* @ param p_header_data the data contained in the POC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the POC marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_ppm_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
opj_cp_v2_t * l_cp = 00 ;
OPJ_UINT32 l_remaining_data , l_Z_ppm , l_N_ppm ;
// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
if ( p_header_size < 1 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PPM marker \n " ) ;
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return OPJ_FALSE ;
}
l_cp = & ( p_j2k - > m_cp ) ;
l_cp - > ppm = 1 ;
opj_read_bytes ( p_header_data , & l_Z_ppm , 1 ) ; /* Z_ppm */
+ + p_header_data ;
- - p_header_size ;
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// First PPM marker
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if ( l_Z_ppm = = 0 ) {
if ( p_header_size < 4 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PPM marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_N_ppm , 4 ) ; /* N_ppm */
p_header_data + = 4 ;
p_header_size - = 4 ;
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/* First PPM marker: Initialization */
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l_cp - > ppm_len = l_N_ppm ;
l_cp - > ppm_data_size = 0 ;
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l_cp - > ppm_buffer = ( OPJ_BYTE * ) opj_malloc ( l_cp - > ppm_len ) ;
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if ( l_cp - > ppm_buffer = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory reading ppm marker \n " ) ;
return OPJ_FALSE ;
}
memset ( l_cp - > ppm_buffer , 0 , l_cp - > ppm_len ) ;
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l_cp - > ppm_data = l_cp - > ppm_buffer ;
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}
while ( 1 ) {
if ( l_cp - > ppm_data_size = = l_cp - > ppm_len ) {
if ( p_header_size > = 4 ) {
// read a N_ppm
opj_read_bytes ( p_header_data , & l_N_ppm , 4 ) ; /* N_ppm */
p_header_data + = 4 ;
p_header_size - = 4 ;
l_cp - > ppm_len + = l_N_ppm ;
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l_cp - > ppm_buffer = ( OPJ_BYTE * ) opj_realloc ( l_cp - > ppm_buffer , l_cp - > ppm_len ) ;
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if ( l_cp - > ppm_buffer = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory reading ppm marker \n " ) ;
return OPJ_FALSE ;
}
memset ( l_cp - > ppm_buffer + l_cp - > ppm_data_size , 0 , l_N_ppm ) ;
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l_cp - > ppm_data = l_cp - > ppm_buffer ;
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}
else {
return OPJ_FALSE ;
}
}
l_remaining_data = l_cp - > ppm_len - l_cp - > ppm_data_size ;
if ( l_remaining_data < = p_header_size ) {
/* we must store less information than available in the packet */
memcpy ( l_cp - > ppm_buffer + l_cp - > ppm_data_size , p_header_data , l_remaining_data ) ;
l_cp - > ppm_data_size = l_cp - > ppm_len ;
p_header_size - = l_remaining_data ;
p_header_data + = l_remaining_data ;
}
else {
memcpy ( l_cp - > ppm_buffer + l_cp - > ppm_data_size , p_header_data , p_header_size ) ;
l_cp - > ppm_data_size + = p_header_size ;
p_header_data + = p_header_size ;
p_header_size = 0 ;
break ;
}
}
return OPJ_TRUE ;
}
/**
* Reads a PPM marker ( Packed packet headers , main header )
*
* @ param p_header_data the data contained in the POC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the POC marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_ppm_v3 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
opj_cp_v2_t * l_cp = 00 ;
OPJ_UINT32 l_remaining_data , l_Z_ppm , l_N_ppm ;
// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
// Minimum size of PPM marker is equal to the size of Zppm element
if ( p_header_size < 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PPM marker \n " ) ;
return OPJ_FALSE ;
}
l_cp = & ( p_j2k - > m_cp ) ;
l_cp - > ppm = 1 ;
opj_read_bytes ( p_header_data , & l_Z_ppm , 1 ) ; /* Z_ppm */
+ + p_header_data ;
- - p_header_size ;
// First PPM marker
if ( l_Z_ppm = = 0 ) {
// We need now at least the Nppm^0 element
if ( p_header_size < 4 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PPM marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_N_ppm , 4 ) ; /* First N_ppm */
p_header_data + = 4 ;
p_header_size - = 4 ;
/* First PPM marker: Initialization */
l_cp - > ppm_len = l_N_ppm ;
l_cp - > ppm_data_read = 0 ;
l_cp - > ppm_data = ( OPJ_BYTE * ) opj_malloc ( l_cp - > ppm_len ) ;
if ( l_cp - > ppm_data = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory reading ppm marker \n " ) ;
return OPJ_FALSE ;
}
memset ( l_cp - > ppm_data , 0 , l_cp - > ppm_len ) ;
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l_cp - > ppm_data_current = l_cp - > ppm_data ;
//l_cp->ppm_data = l_cp->ppm_buffer;
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}
else {
if ( p_header_size < 4 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Empty PPM marker \n " ) ;
return OPJ_TRUE ;
}
else {
// Uncompleted Ippm series in the previous PPM marker?
if ( l_cp - > ppm_data_read < l_cp - > ppm_len ) {
// Get the place where add the remaining Ippm series
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l_cp - > ppm_data_current = & ( l_cp - > ppm_data [ l_cp - > ppm_data_read ] ) ;
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l_N_ppm = l_cp - > ppm_len - l_cp - > ppm_data_read ;
}
else {
opj_read_bytes ( p_header_data , & l_N_ppm , 4 ) ; /* First N_ppm */
p_header_data + = 4 ;
p_header_size - = 4 ;
// Increase the size of ppm_data to add the new Ippm series
l_cp - > ppm_data = ( OPJ_BYTE * ) opj_realloc ( l_cp - > ppm_data , l_cp - > ppm_len + l_N_ppm ) ;
// Keep the position of the place where concatenate the new series
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l_cp - > ppm_data_current = & ( l_cp - > ppm_data [ l_cp - > ppm_len ] ) ;
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l_cp - > ppm_len + = l_N_ppm ;
}
}
}
l_remaining_data = p_header_size ;
while ( l_remaining_data > = l_N_ppm ) {
// read a complete Ippm series
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memcpy ( l_cp - > ppm_data_current , p_header_data , l_N_ppm ) ;
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p_header_size - = l_N_ppm ;
p_header_data + = l_N_ppm ;
l_cp - > ppm_data_read + = l_N_ppm ; // Increase the number of data read
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if ( p_header_size )
{
opj_read_bytes ( p_header_data , & l_N_ppm , 4 ) ; /* N_ppm^i */
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p_header_data + = 4 ;
p_header_size - = 4 ;
}
else {
l_remaining_data = p_header_size ;
break ;
}
l_remaining_data = p_header_size ;
// Next Ippm series is a complete series ?
if ( l_remaining_data > l_N_ppm ) {
// Increase the size of ppm_data to add the new Ippm series
l_cp - > ppm_data = ( OPJ_BYTE * ) opj_realloc ( l_cp - > ppm_data , l_cp - > ppm_len + l_N_ppm ) ;
// Keep the position of the place where concatenate the new series
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l_cp - > ppm_data_current = & ( l_cp - > ppm_data [ l_cp - > ppm_len ] ) ;
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l_cp - > ppm_len + = l_N_ppm ;
}
}
// Need to read an incomplete Ippm series
if ( l_remaining_data ) {
l_cp - > ppm_data = ( OPJ_BYTE * ) opj_realloc ( l_cp - > ppm_data , l_cp - > ppm_len + l_N_ppm ) ;
// Keep the position of the place where concatenate the new series
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l_cp - > ppm_data_current = & ( l_cp - > ppm_data [ l_cp - > ppm_len ] ) ;
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l_cp - > ppm_len + = l_N_ppm ;
// Read incomplete Ippm series
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memcpy ( l_cp - > ppm_data_current , p_header_data , l_remaining_data ) ;
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p_header_size - = l_remaining_data ;
p_header_data + = l_remaining_data ;
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2011-09-19 15:47:35 +02:00
l_cp - > ppm_data_read + = l_remaining_data ; // Increase the number of data read
}
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# ifdef CLEAN_MSD
if ( l_cp - > ppm_data_size = = l_cp - > ppm_len ) {
if ( p_header_size > = 4 ) {
// read a N_ppm
opj_read_bytes ( p_header_data , & l_N_ppm , 4 ) ; /* N_ppm */
p_header_data + = 4 ;
p_header_size - = 4 ;
l_cp - > ppm_len + = l_N_ppm ;
l_cp - > ppm_buffer = ( OPJ_BYTE * ) opj_realloc ( l_cp - > ppm_buffer , l_cp - > ppm_len ) ;
if ( l_cp - > ppm_buffer = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory reading ppm marker \n " ) ;
return OPJ_FALSE ;
}
memset ( l_cp - > ppm_buffer + l_cp - > ppm_data_size , 0 , l_N_ppm ) ;
l_cp - > ppm_data = l_cp - > ppm_buffer ;
}
else {
return OPJ_FALSE ;
}
}
l_remaining_data = l_cp - > ppm_len - l_cp - > ppm_data_size ;
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if ( l_remaining_data < = p_header_size ) {
/* we must store less information than available in the packet */
memcpy ( l_cp - > ppm_buffer + l_cp - > ppm_data_size , p_header_data , l_remaining_data ) ;
l_cp - > ppm_data_size = l_cp - > ppm_len ;
p_header_size - = l_remaining_data ;
p_header_data + = l_remaining_data ;
}
else {
memcpy ( l_cp - > ppm_buffer + l_cp - > ppm_data_size , p_header_data , p_header_size ) ;
l_cp - > ppm_data_size + = p_header_size ;
p_header_data + = p_header_size ;
p_header_size = 0 ;
break ;
}
}
# endif
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return OPJ_TRUE ;
}
2003-11-27 11:10:17 +01:00
2005-12-02 14:34:15 +01:00
static void j2k_read_ppt ( opj_j2k_t * j2k ) {
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int len , Z_ppt , i , j = 0 ;
opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = cp - > tcps + j2k - > curtileno ;
opj_cio_t * cio = j2k - > cio ;
len = cio_read ( cio , 2 ) ;
Z_ppt = cio_read ( cio , 1 ) ;
tcp - > ppt = 1 ;
if ( Z_ppt = = 0 ) { /* First PPT marker */
tcp - > ppt_data = ( unsigned char * ) opj_malloc ( ( len - 3 ) * sizeof ( unsigned char ) ) ;
tcp - > ppt_data_first = tcp - > ppt_data ;
tcp - > ppt_store = 0 ;
tcp - > ppt_len = len - 3 ;
} else { /* NON-first PPT marker */
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tcp - > ppt_data = ( unsigned char * ) opj_realloc ( tcp - > ppt_data , ( len - 3 + tcp - > ppt_store ) * sizeof ( unsigned char ) ) ;
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tcp - > ppt_data_first = tcp - > ppt_data ;
tcp - > ppt_len = len - 3 + tcp - > ppt_store ;
}
j = tcp - > ppt_store ;
for ( i = len - 3 ; i > 0 ; i - - ) {
tcp - > ppt_data [ j ] = cio_read ( cio , 1 ) ;
j + + ;
}
tcp - > ppt_store = j ;
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}
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/**
* Reads a PPT marker ( Packed packet headers , tile - part header )
*
* @ param p_header_data the data contained in the PPT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the PPT marker .
* @ param p_manager the user event manager .
*/
2011-09-19 18:09:19 +02:00
opj_bool j2k_read_ppt_v2 ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager )
2011-09-19 15:04:04 +02:00
{
opj_cp_v2_t * l_cp = 00 ;
opj_tcp_v2_t * l_tcp = 00 ;
OPJ_UINT32 l_Z_ppt ;
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/* preconditions */
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assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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/* We need to have the Z_ppt element at minimum */
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if ( p_header_size < 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PPT marker \n " ) ;
return OPJ_FALSE ;
}
l_cp = & ( p_j2k - > m_cp ) ;
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if ( l_cp - > ppm ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading PPT marker: packet header have been previously found in the main header (PPM marker). \n " ) ;
return OPJ_FALSE ;
}
2011-09-19 15:04:04 +02:00
l_tcp = & ( l_cp - > tcps [ p_j2k - > m_current_tile_number ] ) ;
l_tcp - > ppt = 1 ;
opj_read_bytes ( p_header_data , & l_Z_ppt , 1 ) ; /* Z_ppt */
+ + p_header_data ;
- - p_header_size ;
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/* Allocate buffer to read the packet header */
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if ( l_Z_ppt = = 0 ) {
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/* First PPT marker */
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l_tcp - > ppt_data_size = 0 ;
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l_tcp - > ppt_len = p_header_size ;
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l_tcp - > ppt_buffer = ( OPJ_BYTE * ) opj_calloc ( l_tcp - > ppt_len , sizeof ( OPJ_BYTE ) ) ;
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if ( l_tcp - > ppt_buffer = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory reading PPT marker \n " ) ;
return OPJ_FALSE ;
}
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l_tcp - > ppt_data = l_tcp - > ppt_buffer ;
/* memset(l_tcp->ppt_buffer,0,l_tcp->ppt_len); */
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}
else {
l_tcp - > ppt_len + = p_header_size ;
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l_tcp - > ppt_buffer = ( OPJ_BYTE * ) opj_realloc ( l_tcp - > ppt_buffer , l_tcp - > ppt_len ) ;
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if ( l_tcp - > ppt_buffer = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Not enough memory reading PPT marker \n " ) ;
return OPJ_FALSE ;
}
l_tcp - > ppt_data = l_tcp - > ppt_buffer ;
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memset ( l_tcp - > ppt_buffer + l_tcp - > ppt_data_size , 0 , p_header_size ) ;
}
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/* Read packet header from buffer */
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memcpy ( l_tcp - > ppt_buffer + l_tcp - > ppt_data_size , p_header_data , p_header_size ) ;
l_tcp - > ppt_data_size + = p_header_size ;
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return OPJ_TRUE ;
}
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static void j2k_write_tlm ( opj_j2k_t * j2k ) {
int lenp ;
opj_cio_t * cio = j2k - > cio ;
j2k - > tlm_start = cio_tell ( cio ) ;
cio_write ( cio , J2K_MS_TLM , 2 ) ; /* TLM */
lenp = 4 + ( 5 * j2k - > totnum_tp ) ;
cio_write ( cio , lenp , 2 ) ; /* Ltlm */
cio_write ( cio , 0 , 1 ) ; /* Ztlm=0*/
cio_write ( cio , 80 , 1 ) ; /* Stlm ST=1(8bits-255 tiles max),SP=1(Ptlm=32bits) */
cio_skip ( cio , 5 * j2k - > totnum_tp ) ;
}
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static void j2k_write_sot ( opj_j2k_t * j2k ) {
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int lenp , len ;
opj_cio_t * cio = j2k - > cio ;
j2k - > sot_start = cio_tell ( cio ) ;
cio_write ( cio , J2K_MS_SOT , 2 ) ; /* SOT */
lenp = cio_tell ( cio ) ;
cio_skip ( cio , 2 ) ; /* Lsot (further) */
cio_write ( cio , j2k - > curtileno , 2 ) ; /* Isot */
cio_skip ( cio , 4 ) ; /* Psot (further in j2k_write_sod) */
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cio_write ( cio , j2k - > cur_tp_num , 1 ) ; /* TPsot */
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cio_write ( cio , j2k - > cur_totnum_tp [ j2k - > curtileno ] , 1 ) ; /* TNsot */
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len = cio_tell ( cio ) - lenp ;
cio_seek ( cio , lenp ) ;
cio_write ( cio , len , 2 ) ; /* Lsot */
cio_seek ( cio , lenp + len ) ;
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/* UniPG>> */
# ifdef USE_JPWL
/* update markers struct */
j2k_add_marker ( j2k - > cstr_info , J2K_MS_SOT , j2k - > sot_start , len + 2 ) ;
# endif /* USE_JPWL */
/* <<UniPG */
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if ( j2k - > cstr_info & & j2k - > cur_tp_num = = 0 ) {
j2k_add_tlmarker ( j2k - > curtileno , j2k - > cstr_info , J2K_MS_SOT , lenp , len ) ;
}
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}
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static void j2k_read_sot ( opj_j2k_t * j2k ) {
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int len , tileno , totlen , partno , numparts , i ;
opj_tcp_t * tcp = NULL ;
char status = 0 ;
opj_cp_t * cp = j2k - > cp ;
opj_cio_t * cio = j2k - > cio ;
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len = cio_read ( cio , 2 ) ;
tileno = cio_read ( cio , 2 ) ;
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
static int backup_tileno = 0 ;
/* tileno is negative or larger than the number of tiles!!! */
if ( ( tileno < 0 ) | | ( tileno > ( cp - > tw * cp - > th ) ) ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" JPWL: bad tile number (%d out of a maximum of %d) \n " ,
tileno , ( cp - > tw * cp - > th ) ) ;
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if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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/* we try to correct */
tileno = backup_tileno ;
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opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - trying to adjust this \n "
" - setting tile number to %d \n " ,
tileno ) ;
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}
/* keep your private count of tiles */
backup_tileno + + ;
} ;
# endif /* USE_JPWL */
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if ( cp - > tileno_size = = 0 ) {
cp - > tileno [ cp - > tileno_size ] = tileno ;
cp - > tileno_size + + ;
} else {
i = 0 ;
while ( i < cp - > tileno_size & & status = = 0 ) {
status = cp - > tileno [ i ] = = tileno ? 1 : 0 ;
i + + ;
}
if ( status = = 0 ) {
cp - > tileno [ cp - > tileno_size ] = tileno ;
cp - > tileno_size + + ;
}
}
totlen = cio_read ( cio , 4 ) ;
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
/* totlen is negative or larger than the bytes left!!! */
if ( ( totlen < 0 ) | | ( totlen > ( cio_numbytesleft ( cio ) + 8 ) ) ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" JPWL: bad tile byte size (%d bytes against %d bytes left) \n " ,
totlen , cio_numbytesleft ( cio ) + 8 ) ;
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if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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/* we try to correct */
totlen = 0 ;
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opj_event_msg ( j2k - > cinfo , EVT_WARNING , " - trying to adjust this \n "
" - setting Psot to %d => assuming it is the last tile \n " ,
totlen ) ;
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}
} ;
# endif /* USE_JPWL */
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if ( ! totlen )
totlen = cio_numbytesleft ( cio ) + 8 ;
partno = cio_read ( cio , 1 ) ;
numparts = cio_read ( cio , 1 ) ;
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if ( partno > = numparts ) {
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opj_event_msg ( j2k - > cinfo , EVT_WARNING , " SOT marker inconsistency in tile %d: tile-part index greater (%d) than number of tile-parts (%d) \n " , tileno , partno , numparts ) ;
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numparts = partno + 1 ;
}
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j2k - > curtileno = tileno ;
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j2k - > cur_tp_num = partno ;
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j2k - > eot = cio_getbp ( cio ) - 12 + totlen ;
j2k - > state = J2K_STATE_TPH ;
tcp = & cp - > tcps [ j2k - > curtileno ] ;
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/* Index */
if ( j2k - > cstr_info ) {
if ( tcp - > first ) {
if ( tileno = = 0 )
j2k - > cstr_info - > main_head_end = cio_tell ( cio ) - 13 ;
j2k - > cstr_info - > tile [ tileno ] . tileno = tileno ;
j2k - > cstr_info - > tile [ tileno ] . start_pos = cio_tell ( cio ) - 12 ;
j2k - > cstr_info - > tile [ tileno ] . end_pos = j2k - > cstr_info - > tile [ tileno ] . start_pos + totlen - 1 ;
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} else {
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j2k - > cstr_info - > tile [ tileno ] . end_pos + = totlen ;
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}
j2k - > cstr_info - > tile [ tileno ] . num_tps = numparts ;
if ( numparts )
j2k - > cstr_info - > tile [ tileno ] . tp = ( opj_tp_info_t * ) opj_realloc ( j2k - > cstr_info - > tile [ tileno ] . tp , numparts * sizeof ( opj_tp_info_t ) ) ;
else
j2k - > cstr_info - > tile [ tileno ] . tp = ( opj_tp_info_t * ) opj_realloc ( j2k - > cstr_info - > tile [ tileno ] . tp , 10 * sizeof ( opj_tp_info_t ) ) ; // Fixme (10)
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j2k - > cstr_info - > tile [ tileno ] . tp [ partno ] . tp_start_pos = cio_tell ( cio ) - 12 ;
j2k - > cstr_info - > tile [ tileno ] . tp [ partno ] . tp_end_pos =
j2k - > cstr_info - > tile [ tileno ] . tp [ partno ] . tp_start_pos + totlen - 1 ;
}
if ( tcp - > first = = 1 ) {
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/* Initialization PPT */
opj_tccp_t * tmp = tcp - > tccps ;
memcpy ( tcp , j2k - > default_tcp , sizeof ( opj_tcp_t ) ) ;
tcp - > ppt = 0 ;
tcp - > ppt_data = NULL ;
tcp - > ppt_data_first = NULL ;
tcp - > tccps = tmp ;
for ( i = 0 ; i < j2k - > image - > numcomps ; i + + ) {
tcp - > tccps [ i ] = j2k - > default_tcp - > tccps [ i ] ;
}
cp - > tcps [ j2k - > curtileno ] . first = 0 ;
}
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}
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/**
* Reads a PPT marker ( Packed packet headers , tile - part header )
*
* @ param p_header_data the data contained in the PPT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the PPT marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_sot_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
opj_cp_v2_t * l_cp = 00 ;
opj_tcp_v2_t * l_tcp = 00 ;
OPJ_UINT32 l_tot_len , l_num_parts = 0 ;
OPJ_UINT32 l_current_part ;
OPJ_UINT32 l_tile_x , l_tile_y ;
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/* preconditions */
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assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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/* Size of this marker is fixed = 12 (we have already read marker and its size)*/
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if ( p_header_size ! = 8 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading SOT marker \n " ) ;
return OPJ_FALSE ;
}
l_cp = & ( p_j2k - > m_cp ) ;
opj_read_bytes ( p_header_data , & ( p_j2k - > m_current_tile_number ) , 2 ) ; /* Isot */
p_header_data + = 2 ;
l_tcp = & l_cp - > tcps [ p_j2k - > m_current_tile_number ] ;
l_tile_x = p_j2k - > m_current_tile_number % l_cp - > tw ;
l_tile_y = p_j2k - > m_current_tile_number / l_cp - > tw ;
# ifdef USE_JPWL
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if ( l_cp - > correct ) {
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int tileno = p_j2k - > m_current_tile_number ;
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static int backup_tileno = 0 ;
/* tileno is negative or larger than the number of tiles!!! */
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if ( ( tileno < 0 ) | | ( tileno > ( l_cp - > tw * l_cp - > th ) ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" JPWL: bad tile number (%d out of a maximum of %d) \n " ,
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tileno , ( l_cp - > tw * l_cp - > th ) ) ;
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if ( ! JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
/* we try to correct */
tileno = backup_tileno ;
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opj_event_msg_v2 ( p_manager , EVT_WARNING , " - trying to adjust this \n "
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" - setting tile number to %d \n " ,
tileno ) ;
}
/* keep your private count of tiles */
backup_tileno + + ;
} ;
# endif /* USE_JPWL */
/* look for the tile in the list of already processed tile (in parts). */
/* Optimization possible here with a more complex data structure and with the removing of tiles */
/* since the time taken by this function can only grow at the time */
opj_read_bytes ( p_header_data , & l_tot_len , 4 ) ; /* Psot */
p_header_data + = 4 ;
# ifdef USE_JPWL
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if ( l_cp - > correct ) {
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/* totlen is negative or larger than the bytes left!!! */
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if ( ( l_tot_len < 0 ) | | ( l_tot_len > p_header_size ) ) { /* FIXME it seems correct; for info in V1 -> (p_stream_numbytesleft(p_stream) + 8))) { */
opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" JPWL: bad tile byte size (%d bytes against %d bytes left) \n " ,
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l_tot_len , p_header_size ) ; /* FIXME it seems correct; for info in V1 -> p_stream_numbytesleft(p_stream) + 8); */
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if ( ! JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
/* we try to correct */
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l_tot_len = 0 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - trying to adjust this \n "
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" - setting Psot to %d => assuming it is the last tile \n " ,
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l_tot_len ) ;
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}
} ;
# endif /* USE_JPWL */
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/* Ref A.4.2: Psot could be equal zero if it is the last tile-part of the codestream.*/
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if ( ! l_tot_len ) {
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opj_event_msg_v2 ( p_manager , EVT_INFO , " Psot value of the current tile-part is equal to zero, "
" we assuming it is the last tile-part of the codestream. \n " ) ;
p_j2k - > m_specific_param . m_decoder . m_last_tile_part = 1 ;
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}
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opj_read_bytes ( p_header_data , & l_current_part , 1 ) ; /* TPsot */
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+ + p_header_data ;
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opj_read_bytes ( p_header_data , & l_num_parts , 1 ) ; /* TNsot */
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+ + p_header_data ;
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if ( l_num_parts ! = 0 ) { /* Number of tile-part header is provided by this tile-part header */
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/* Useful to manage the case of textGBR.jp2 file because two values of TNSot are allowed: the correct numbers of
* tile - parts for that tile and zero ( A .4 .2 of 15444 - 1 : 2002 ) . */
if ( l_tcp - > m_nb_tile_parts ) {
if ( l_current_part > = l_tcp - > m_nb_tile_parts ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " In SOT marker, TPSot (%d) is not valid regards to the current "
" number of tile-part (%d), giving up \n " , l_current_part , l_tcp - > m_nb_tile_parts ) ;
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p_j2k - > m_specific_param . m_decoder . m_last_tile_part = 1 ;
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return OPJ_FALSE ;
}
}
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l_tcp - > m_nb_tile_parts = l_num_parts ;
}
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/* If know the number of tile part header we will check if we didn't read the last*/
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if ( l_tcp - > m_nb_tile_parts ) {
if ( l_tcp - > m_nb_tile_parts = = ( l_current_part + 1 ) ) {
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p_j2k - > m_specific_param . m_decoder . m_can_decode = 1 ; /* Process the last tile-part header*/
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}
}
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if ( ! p_j2k - > m_specific_param . m_decoder . m_last_tile_part ) {
/* Keep the size of data to skip after this marker */
p_j2k - > m_specific_param . m_decoder . m_sot_length = l_tot_len - 12 ; /* SOT_marker_size = 12 */
}
else {
/* FIXME: need to be computed from the number of bytes remaining in the codestream */
p_j2k - > m_specific_param . m_decoder . m_sot_length = 0 ;
}
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p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_TPH ;
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/* Check if the current tile is outside the area we want decode or not corresponding to the tile index*/
if ( p_j2k - > m_specific_param . m_decoder . m_tile_ind_to_dec = = - 1 ) {
p_j2k - > m_specific_param . m_decoder . m_skip_data =
( l_tile_x < p_j2k - > m_specific_param . m_decoder . m_start_tile_x )
| | ( l_tile_x > = p_j2k - > m_specific_param . m_decoder . m_end_tile_x )
| | ( l_tile_y < p_j2k - > m_specific_param . m_decoder . m_start_tile_y )
| | ( l_tile_y > = p_j2k - > m_specific_param . m_decoder . m_end_tile_y ) ;
}
else
p_j2k - > m_specific_param . m_decoder . m_skip_data =
( p_j2k - > m_current_tile_number ! = p_j2k - > m_specific_param . m_decoder . m_tile_ind_to_dec ) ;
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/* Index */
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if ( p_j2k - > cstr_index )
{
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tileno = p_j2k - > m_current_tile_number ;
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_tpsno = l_current_part ;
if ( l_num_parts ! = 0 ) {
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . nb_tps = l_num_parts ;
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_nb_tps = l_num_parts ;
if ( ! p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index )
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index =
( opj_tp_index_t * ) opj_calloc ( l_num_parts , sizeof ( opj_tp_index_t ) ) ;
else
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index =
( opj_tp_index_t * ) opj_realloc (
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index ,
l_num_parts * sizeof ( opj_tp_index_t ) ) ;
}
else {
/*if (!p_j2k->cstr_index->tile_index[p_j2k->m_current_tile_number].tp_index)*/ {
if ( ! p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index ) {
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_nb_tps = 10 ;
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index =
( opj_tp_index_t * ) opj_calloc ( p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_nb_tps ,
sizeof ( opj_tp_index_t ) ) ;
}
if ( l_current_part > = p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_nb_tps ) {
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_nb_tps + = 10 ;
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index =
( opj_tp_index_t * ) opj_realloc ( p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index ,
p_j2k - > cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_nb_tps
* sizeof ( opj_tp_index_t ) ) ;
}
}
}
}
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/* FIXME move this onto a separate method to call before reading any SOT, remove part about main_end header, use a index struct inside p_j2k */
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/* if (p_j2k->cstr_info) {
if ( l_tcp - > first ) {
if ( tileno = = 0 ) {
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p_j2k - > cstr_info - > main_head_end = p_stream_tell ( p_stream ) - 13 ;
}
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p_j2k - > cstr_info - > tile [ tileno ] . tileno = tileno ;
p_j2k - > cstr_info - > tile [ tileno ] . start_pos = p_stream_tell ( p_stream ) - 12 ;
p_j2k - > cstr_info - > tile [ tileno ] . end_pos = p_j2k - > cstr_info - > tile [ tileno ] . start_pos + totlen - 1 ;
p_j2k - > cstr_info - > tile [ tileno ] . num_tps = numparts ;
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if ( numparts ) {
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p_j2k - > cstr_info - > tile [ tileno ] . tp = ( opj_tp_info_t * ) opj_malloc ( numparts * sizeof ( opj_tp_info_t ) ) ;
}
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else {
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p_j2k - > cstr_info - > tile [ tileno ] . tp = ( opj_tp_info_t * ) opj_malloc ( 10 * sizeof ( opj_tp_info_t ) ) ; // Fixme (10)
}
}
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else {
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p_j2k - > cstr_info - > tile [ tileno ] . end_pos + = totlen ;
}
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2011-09-19 15:04:04 +02:00
p_j2k - > cstr_info - > tile [ tileno ] . tp [ partno ] . tp_start_pos = p_stream_tell ( p_stream ) - 12 ;
p_j2k - > cstr_info - > tile [ tileno ] . tp [ partno ] . tp_end_pos =
p_j2k - > cstr_info - > tile [ tileno ] . tp [ partno ] . tp_start_pos + totlen - 1 ;
} */
return OPJ_TRUE ;
}
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static void j2k_write_sod ( opj_j2k_t * j2k , void * tile_coder ) {
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int l , layno ;
int totlen ;
opj_tcp_t * tcp = NULL ;
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opj_codestream_info_t * cstr_info = NULL ;
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opj_tcd_t * tcd = ( opj_tcd_t * ) tile_coder ; /* cast is needed because of conflicts in header inclusions */
opj_cp_t * cp = j2k - > cp ;
opj_cio_t * cio = j2k - > cio ;
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tcd - > tp_num = j2k - > tp_num ;
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tcd - > cur_tp_num = j2k - > cur_tp_num ;
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cio_write ( cio , J2K_MS_SOD , 2 ) ;
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if ( j2k - > cstr_info & & j2k - > cur_tp_num = = 0 ) {
j2k_add_tlmarker ( j2k - > curtileno , j2k - > cstr_info , J2K_MS_SOD , cio_tell ( cio ) , 0 ) ;
}
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if ( j2k - > curtileno = = 0 ) {
j2k - > sod_start = cio_tell ( cio ) + j2k - > pos_correction ;
}
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2005-12-08 10:38:47 +01:00
/* INDEX >> */
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cstr_info = j2k - > cstr_info ;
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if ( cstr_info ) {
if ( ! j2k - > cur_tp_num ) {
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cstr_info - > tile [ j2k - > curtileno ] . end_header = cio_tell ( cio ) + j2k - > pos_correction - 1 ;
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j2k - > cstr_info - > tile [ j2k - > curtileno ] . tileno = j2k - > curtileno ;
}
else {
if ( cstr_info - > tile [ j2k - > curtileno ] . packet [ cstr_info - > packno - 1 ] . end_pos < cio_tell ( cio ) )
cstr_info - > tile [ j2k - > curtileno ] . packet [ cstr_info - > packno ] . start_pos = cio_tell ( cio ) ;
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}
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/* UniPG>> */
# ifdef USE_JPWL
/* update markers struct */
j2k_add_marker ( j2k - > cstr_info , J2K_MS_SOD , j2k - > sod_start , 2 ) ;
# endif /* USE_JPWL */
/* <<UniPG */
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}
/* << INDEX */
tcp = & cp - > tcps [ j2k - > curtileno ] ;
for ( layno = 0 ; layno < tcp - > numlayers ; layno + + ) {
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if ( tcp - > rates [ layno ] > ( j2k - > sod_start / ( cp - > th * cp - > tw ) ) ) {
tcp - > rates [ layno ] - = ( j2k - > sod_start / ( cp - > th * cp - > tw ) ) ;
} else if ( tcp - > rates [ layno ] ) {
tcp - > rates [ layno ] = 1 ;
}
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}
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if ( j2k - > cur_tp_num = = 0 ) {
tcd - > tcd_image - > tiles - > packno = 0 ;
if ( cstr_info )
cstr_info - > packno = 0 ;
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}
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l = tcd_encode_tile ( tcd , j2k - > curtileno , cio_getbp ( cio ) , cio_numbytesleft ( cio ) - 2 , cstr_info ) ;
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/* Writing Psot in SOT marker */
totlen = cio_tell ( cio ) + l - j2k - > sot_start ;
cio_seek ( cio , j2k - > sot_start + 6 ) ;
cio_write ( cio , totlen , 4 ) ;
cio_seek ( cio , j2k - > sot_start + totlen ) ;
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/* Writing Ttlm and Ptlm in TLM marker */
if ( cp - > cinema ) {
cio_seek ( cio , j2k - > tlm_start + 6 + ( 5 * j2k - > cur_tp_num ) ) ;
cio_write ( cio , j2k - > curtileno , 1 ) ;
cio_write ( cio , totlen , 4 ) ;
}
cio_seek ( cio , j2k - > sot_start + totlen ) ;
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}
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static void j2k_read_sod ( opj_j2k_t * j2k ) {
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int len , truncate = 0 , i ;
unsigned char * data = NULL , * data_ptr = NULL ;
opj_cio_t * cio = j2k - > cio ;
int curtileno = j2k - > curtileno ;
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/* Index */
if ( j2k - > cstr_info ) {
j2k - > cstr_info - > tile [ j2k - > curtileno ] . tp [ j2k - > cur_tp_num ] . tp_end_header =
cio_tell ( cio ) + j2k - > pos_correction - 1 ;
if ( j2k - > cur_tp_num = = 0 )
j2k - > cstr_info - > tile [ j2k - > curtileno ] . end_header = cio_tell ( cio ) + j2k - > pos_correction - 1 ;
j2k - > cstr_info - > packno = 0 ;
}
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len = int_min ( j2k - > eot - cio_getbp ( cio ) , cio_numbytesleft ( cio ) + 1 ) ;
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if ( len = = cio_numbytesleft ( cio ) + 1 ) {
truncate = 1 ; /* Case of a truncate codestream */
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}
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data = j2k - > tile_data [ curtileno ] ;
data = ( unsigned char * ) opj_realloc ( data , ( j2k - > tile_len [ curtileno ] + len ) * sizeof ( unsigned char ) ) ;
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data_ptr = data + j2k - > tile_len [ curtileno ] ;
for ( i = 0 ; i < len ; i + + ) {
data_ptr [ i ] = cio_read ( cio , 1 ) ;
}
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j2k - > tile_len [ curtileno ] + = len ;
j2k - > tile_data [ curtileno ] = data ;
if ( ! truncate ) {
j2k - > state = J2K_STATE_TPHSOT ;
} else {
j2k - > state = J2K_STATE_NEOC ; /* RAJOUTE !! */
}
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j2k - > cur_tp_num + + ;
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}
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/**
* Reads a SOD marker ( Start Of Data )
*
* @ param p_header_data the data contained in the SOD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the SOD marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_sod_v2 (
opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_current_read_size ;
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opj_codestream_index_t * l_cstr_index = 00 ;
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OPJ_BYTE * * l_current_data = 00 ;
opj_tcp_v2_t * l_tcp = 00 ;
OPJ_UINT32 * l_tile_len = 00 ;
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
l_tcp = & ( p_j2k - > m_cp . tcps [ p_j2k - > m_current_tile_number ] ) ;
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if ( p_j2k - > m_specific_param . m_decoder . m_last_tile_part ) {
// opj_stream_get_number_byte_left returns OPJ_OFF_T
// but we are in the last tile part,
// so its result will fit on OPJ_UINT32 unless we find
// a file with a single tile part of more than 4 GB...
p_j2k - > m_specific_param . m_decoder . m_sot_length = ( OPJ_UINT32 ) ( opj_stream_get_number_byte_left ( p_stream ) - 2 ) ;
}
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else
p_j2k - > m_specific_param . m_decoder . m_sot_length - = 2 ;
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l_current_data = & ( l_tcp - > m_data ) ;
l_tile_len = & l_tcp - > m_data_size ;
if ( ! * l_current_data ) {
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* l_current_data = ( OPJ_BYTE * ) opj_malloc ( p_j2k - > m_specific_param . m_decoder . m_sot_length ) ;
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}
else {
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* l_current_data = ( OPJ_BYTE * ) opj_realloc ( * l_current_data , * l_tile_len + p_j2k - > m_specific_param . m_decoder . m_sot_length ) ;
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}
if ( * l_current_data = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Cannot decode tile \n " ) ;
return OPJ_FALSE ;
}
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/* Index */
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l_cstr_index = p_j2k - > cstr_index ;
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if ( l_cstr_index ) {
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OPJ_OFF_T l_current_pos = opj_stream_tell ( p_stream ) - 2 ;
OPJ_UINT32 l_current_tile_part = l_cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . current_tpsno ;
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l_cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index [ l_current_tile_part ] . end_header =
l_current_pos ;
l_cstr_index - > tile_index [ p_j2k - > m_current_tile_number ] . tp_index [ l_current_tile_part ] . end_pos =
l_current_pos + p_j2k - > m_specific_param . m_decoder . m_sot_length + 2 ;
j2k_add_tlmarker_v2 ( p_j2k - > m_current_tile_number ,
l_cstr_index ,
J2K_MS_SOD ,
l_current_pos ,
p_j2k - > m_specific_param . m_decoder . m_sot_length + 2 ) ;
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/*l_cstr_index->packno = 0;*/
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}
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l_current_read_size = opj_stream_read_data ( p_stream ,
* l_current_data + * l_tile_len ,
p_j2k - > m_specific_param . m_decoder . m_sot_length ,
p_manager ) ;
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if ( l_current_read_size ! = p_j2k - > m_specific_param . m_decoder . m_sot_length ) {
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p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_NEOC ;
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}
else {
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p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_TPHSOT ;
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}
* l_tile_len + = l_current_read_size ;
return OPJ_TRUE ;
}
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static void j2k_write_rgn ( opj_j2k_t * j2k , int compno , int tileno ) {
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opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = & cp - > tcps [ tileno ] ;
opj_cio_t * cio = j2k - > cio ;
int numcomps = j2k - > image - > numcomps ;
cio_write ( cio , J2K_MS_RGN , 2 ) ; /* RGN */
cio_write ( cio , numcomps < = 256 ? 5 : 6 , 2 ) ; /* Lrgn */
cio_write ( cio , compno , numcomps < = 256 ? 1 : 2 ) ; /* Crgn */
cio_write ( cio , 0 , 1 ) ; /* Srgn */
cio_write ( cio , tcp - > tccps [ compno ] . roishift , 1 ) ; /* SPrgn */
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}
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static void j2k_read_rgn ( opj_j2k_t * j2k ) {
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int len , compno , roisty ;
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opj_cp_t * cp = j2k - > cp ;
opj_tcp_t * tcp = j2k - > state = = J2K_STATE_TPH ? & cp - > tcps [ j2k - > curtileno ] : j2k - > default_tcp ;
opj_cio_t * cio = j2k - > cio ;
int numcomps = j2k - > image - > numcomps ;
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len = cio_read ( cio , 2 ) ; /* Lrgn */
compno = cio_read ( cio , numcomps < = 256 ? 1 : 2 ) ; /* Crgn */
roisty = cio_read ( cio , 1 ) ; /* Srgn */
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2006-12-04 15:59:33 +01:00
# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
/* totlen is negative or larger than the bytes left!!! */
if ( compno > = numcomps ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" JPWL: bad component number in RGN (%d when there are only %d) \n " ,
compno , numcomps ) ;
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if ( ! JPWL_ASSUME | | JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return ;
}
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}
} ;
# endif /* USE_JPWL */
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2005-12-08 10:38:47 +01:00
tcp - > tccps [ compno ] . roishift = cio_read ( cio , 1 ) ; /* SPrgn */
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}
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2005-12-02 14:34:15 +01:00
static void j2k_write_eoc ( opj_j2k_t * j2k ) {
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opj_cio_t * cio = j2k - > cio ;
/* opj_event_msg(j2k->cinfo, "%.8x: EOC\n", cio_tell(cio) + j2k->pos_correction); */
cio_write ( cio , J2K_MS_EOC , 2 ) ;
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/* UniPG>> */
# ifdef USE_JPWL
/* update markers struct */
j2k_add_marker ( j2k - > cstr_info , J2K_MS_EOC , cio_tell ( cio ) - 2 , 2 ) ;
# endif /* USE_JPWL */
/* <<UniPG */
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}
2004-07-07 09:37:14 +02:00
2011-09-19 15:04:04 +02:00
/**
* Reads a RGN marker ( Region Of Interest )
*
* @ param p_header_data the data contained in the POC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the POC marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_rgn_v2 (
opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_nb_comp ;
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opj_image_t * l_image = 00 ;
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opj_cp_v2_t * l_cp = 00 ;
opj_tcp_v2_t * l_tcp = 00 ;
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OPJ_UINT32 l_comp_room , l_comp_no , l_roi_sty ;
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// preconditions
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_image = p_j2k - > m_private_image ;
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l_nb_comp = l_image - > numcomps ;
if ( l_nb_comp < = 256 ) {
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l_comp_room = 1 ; }
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else {
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l_comp_room = 2 ; }
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if ( p_header_size ! = 2 + l_comp_room ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading RGN marker \n " ) ;
return OPJ_FALSE ;
}
l_cp = & ( p_j2k - > m_cp ) ;
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l_tcp = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ) ?
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& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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opj_read_bytes ( p_header_data , & l_comp_no , l_comp_room ) ; /* Crgn */
p_header_data + = l_comp_room ;
opj_read_bytes ( p_header_data , & l_roi_sty , 1 ) ; /* Srgn */
+ + p_header_data ;
# ifdef USE_JPWL
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if ( l_cp - > correct ) {
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/* totlen is negative or larger than the bytes left!!! */
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if ( l_comp_room > = l_nb_comp ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" JPWL: bad component number in RGN (%d when there are only %d) \n " ,
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l_comp_room , l_nb_comp ) ;
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if ( ! JPWL_ASSUME | | JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
}
} ;
# endif /* USE_JPWL */
opj_read_bytes ( p_header_data , ( OPJ_UINT32 * ) ( & ( l_tcp - > tccps [ l_comp_no ] . roishift ) ) , 1 ) ; /* SPrgn */
+ + p_header_data ;
return OPJ_TRUE ;
}
static void j2k_read_eoc ( opj_j2k_t * j2k ) {
int i , tileno ;
opj_bool success ;
/* if packets should be decoded */
if ( j2k - > cp - > limit_decoding ! = DECODE_ALL_BUT_PACKETS ) {
opj_tcd_t * tcd = tcd_create ( j2k - > cinfo ) ;
tcd_malloc_decode ( tcd , j2k - > image , j2k - > cp ) ;
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for ( i = 0 ; i < j2k - > cp - > tileno_size ; i + + ) {
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tcd_malloc_decode_tile ( tcd , j2k - > image , j2k - > cp , i , j2k - > cstr_info ) ;
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tileno = j2k - > cp - > tileno [ i ] ;
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success = tcd_decode_tile ( tcd , j2k - > tile_data [ tileno ] , j2k - > tile_len [ tileno ] , tileno , j2k - > cstr_info ) ;
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opj_free ( j2k - > tile_data [ tileno ] ) ;
j2k - > tile_data [ tileno ] = NULL ;
2007-07-13 15:07:07 +02:00
tcd_free_decode_tile ( tcd , i ) ;
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if ( success = = OPJ_FALSE ) {
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j2k - > state | = J2K_STATE_ERR ;
break ;
}
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}
tcd_free_decode ( tcd ) ;
tcd_destroy ( tcd ) ;
}
/* if packets should not be decoded */
else {
for ( i = 0 ; i < j2k - > cp - > tileno_size ; i + + ) {
tileno = j2k - > cp - > tileno [ i ] ;
opj_free ( j2k - > tile_data [ tileno ] ) ;
j2k - > tile_data [ tileno ] = NULL ;
}
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}
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if ( j2k - > state & J2K_STATE_ERR )
j2k - > state = J2K_STATE_MT + J2K_STATE_ERR ;
else
j2k - > state = J2K_STATE_MT ;
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}
2011-09-19 15:47:35 +02:00
/**
* Reads a EOC marker ( End Of Codestream )
*
* @ param p_header_data the data contained in the SOD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the SOD marker .
* @ param p_manager the user event manager .
*/
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opj_bool j2k_read_eoc_v2 ( opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager )
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{
OPJ_UINT32 i ;
opj_tcd_v2_t * l_tcd = 00 ;
OPJ_UINT32 l_nb_tiles ;
opj_tcp_v2_t * l_tcp = 00 ;
opj_bool l_success ;
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
l_nb_tiles = p_j2k - > m_cp . th * p_j2k - > m_cp . tw ;
l_tcp = p_j2k - > m_cp . tcps ;
l_tcd = tcd_create_v2 ( OPJ_TRUE ) ;
if ( l_tcd = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Cannot decode tile, memory error \n " ) ;
return OPJ_FALSE ;
}
for ( i = 0 ; i < l_nb_tiles ; + + i ) {
if ( l_tcp - > m_data ) {
if ( ! tcd_init_decode_tile ( l_tcd , i ) ) {
tcd_destroy_v2 ( l_tcd ) ;
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Cannot decode tile, memory error \n " ) ;
return OPJ_FALSE ;
}
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l_success = tcd_decode_tile_v2 ( l_tcd , l_tcp - > m_data , l_tcp - > m_data_size , i , p_j2k - > cstr_index ) ;
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/* cleanup */
if ( ! l_success ) {
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p_j2k - > m_specific_param . m_decoder . m_state | = J2K_STATE_ERR ;
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break ;
}
}
j2k_tcp_destroy ( l_tcp ) ;
+ + l_tcp ;
}
tcd_destroy_v2 ( l_tcd ) ;
return OPJ_TRUE ;
}
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typedef struct opj_dec_mstabent {
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/** marker value */
int id ;
/** value of the state when the marker can appear */
int states ;
/** action linked to the marker */
void ( * handler ) ( opj_j2k_t * j2k ) ;
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} opj_dec_mstabent_t ;
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opj_dec_mstabent_t j2k_dec_mstab [ ] = {
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{ J2K_MS_SOC , J2K_STATE_MHSOC , j2k_read_soc } ,
{ J2K_MS_SOT , J2K_STATE_MH | J2K_STATE_TPHSOT , j2k_read_sot } ,
{ J2K_MS_SOD , J2K_STATE_TPH , j2k_read_sod } ,
{ J2K_MS_EOC , J2K_STATE_TPHSOT , j2k_read_eoc } ,
{ J2K_MS_SIZ , J2K_STATE_MHSIZ , j2k_read_siz } ,
{ J2K_MS_COD , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_cod } ,
{ J2K_MS_COC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_coc } ,
{ J2K_MS_RGN , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_rgn } ,
{ J2K_MS_QCD , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_qcd } ,
{ J2K_MS_QCC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_qcc } ,
{ J2K_MS_POC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_poc } ,
{ J2K_MS_TLM , J2K_STATE_MH , j2k_read_tlm } ,
{ J2K_MS_PLM , J2K_STATE_MH , j2k_read_plm } ,
{ J2K_MS_PLT , J2K_STATE_TPH , j2k_read_plt } ,
{ J2K_MS_PPM , J2K_STATE_MH , j2k_read_ppm } ,
{ J2K_MS_PPT , J2K_STATE_TPH , j2k_read_ppt } ,
{ J2K_MS_SOP , 0 , 0 } ,
{ J2K_MS_CRG , J2K_STATE_MH , j2k_read_crg } ,
{ J2K_MS_COM , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_com } ,
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# ifdef USE_JPWL
{ J2K_MS_EPC , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_epc } ,
{ J2K_MS_EPB , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_epb } ,
{ J2K_MS_ESD , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_esd } ,
{ J2K_MS_RED , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_red } ,
# endif /* USE_JPWL */
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# ifdef USE_JPSEC
{ J2K_MS_SEC , J2K_STATE_MH , j2k_read_sec } ,
{ J2K_MS_INSEC , 0 , j2k_read_insec } ,
# endif /* USE_JPSEC */
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{ 0 , J2K_STATE_MH | J2K_STATE_TPH , j2k_read_unk }
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} ;
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static void j2k_read_unk ( opj_j2k_t * j2k ) {
opj_event_msg ( j2k - > cinfo , EVT_WARNING , " Unknown marker \n " ) ;
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# ifdef USE_JPWL
if ( j2k - > cp - > correct ) {
int m = 0 , id , i ;
int min_id = 0 , min_dist = 17 , cur_dist = 0 , tmp_id ;
cio_seek ( j2k - > cio , cio_tell ( j2k - > cio ) - 2 ) ;
id = cio_read ( j2k - > cio , 2 ) ;
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" JPWL: really don't know this marker %x \n " ,
id ) ;
if ( ! JPWL_ASSUME ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
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" - possible synch loss due to uncorrectable codestream errors => giving up \n " ) ;
return ;
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}
/* OK, activate this at your own risk!!! */
/* we look for the marker at the minimum hamming distance from this */
while ( j2k_dec_mstab [ m ] . id ) {
/* 1's where they differ */
tmp_id = j2k_dec_mstab [ m ] . id ^ id ;
/* compute the hamming distance between our id and the current */
cur_dist = 0 ;
for ( i = 0 ; i < 16 ; i + + ) {
if ( ( tmp_id > > i ) & 0x0001 ) {
cur_dist + + ;
}
}
/* if current distance is smaller, set the minimum */
if ( cur_dist < min_dist ) {
min_dist = cur_dist ;
min_id = j2k_dec_mstab [ m ] . id ;
}
/* jump to the next marker */
m + + ;
}
/* do we substitute the marker? */
if ( min_dist < JPWL_MAXIMUM_HAMMING ) {
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" - marker %x is at distance %d from the read %x \n " ,
min_id , min_dist , id ) ;
opj_event_msg ( j2k - > cinfo , EVT_ERROR ,
" - trying to substitute in place and crossing fingers! \n " ) ;
cio_seek ( j2k - > cio , cio_tell ( j2k - > cio ) - 2 ) ;
cio_write ( j2k - > cio , min_id , 2 ) ;
/* rewind */
cio_seek ( j2k - > cio , cio_tell ( j2k - > cio ) - 2 ) ;
}
} ;
# endif /* USE_JPWL */
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}
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/**
* Reads an unknown marker
*
* @ param p_stream the stream object to read from .
* @ param p_j2k the jpeg2000 codec .
* @ param p_manager the user event manager .
*
* @ return true if the marker could be deduced .
*/
opj_bool j2k_read_unk_v2 ( opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
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OPJ_UINT32 * output_marker ,
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struct opj_event_mgr * p_manager
)
{
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OPJ_UINT32 l_unknown_marker ;
const opj_dec_memory_marker_handler_t * l_marker_handler ;
OPJ_UINT32 l_size_unk = 2 ;
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// preconditions
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Unknown marker \n " ) ;
while ( 1 ) {
// Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer
if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
// read 2 bytes as the new marker ID
opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_unknown_marker , 2 ) ;
if ( ! ( l_unknown_marker < 0xff00 ) ) {
// Get the marker handler from the marker ID
l_marker_handler = j2k_get_marker_handler ( l_unknown_marker ) ;
if ( ! ( p_j2k - > m_specific_param . m_decoder . m_state & l_marker_handler - > states ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Marker is not compliant with its position \n " ) ;
return OPJ_FALSE ;
}
else {
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if ( l_marker_handler - > id ! = J2K_MS_UNK ) {
/* Add the marker to the codestream index*/
if ( l_marker_handler - > id ! = J2K_MS_SOT )
j2k_add_mhmarker_v2 ( p_j2k - > cstr_index , J2K_MS_UNK ,
( OPJ_UINT32 ) opj_stream_tell ( p_stream ) - l_size_unk ,
l_size_unk ) ;
break ; /* next marker is known and well located */
}
else
l_size_unk + = 2 ;
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}
}
}
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* output_marker = l_marker_handler - > id ;
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return OPJ_TRUE ;
}
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/**
Read the lookup table containing all the marker , status and action
@ param id Marker value
*/
static opj_dec_mstabent_t * j2k_dec_mstab_lookup ( int id ) {
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opj_dec_mstabent_t * e ;
for ( e = j2k_dec_mstab ; e - > id ! = 0 ; e + + ) {
if ( e - > id = = id ) {
break ;
}
}
return e ;
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}
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/**
* Reads a MCT marker ( Multiple Component Transform )
*
* @ param p_header_data the data contained in the MCT box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the MCT marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_mct ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager )
{
OPJ_UINT32 i ;
opj_tcp_v2_t * l_tcp = 00 ;
OPJ_UINT32 l_tmp ;
OPJ_UINT32 l_indix ;
opj_mct_data_t * l_mct_data ;
/* preconditions */
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
l_tcp = p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ?
& p_j2k - > m_cp . tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
if ( p_header_size < 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCT marker \n " ) ;
return OPJ_FALSE ;
}
/* first marker */
opj_read_bytes ( p_header_data , & l_tmp , 2 ) ; /* Zmct */
p_header_data + = 2 ;
if ( l_tmp ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge mct data within multiple MCT records \n " ) ;
return OPJ_TRUE ;
}
if ( p_header_size < = 6 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCT marker \n " ) ;
return OPJ_FALSE ;
}
/* Imct -> no need for other values, take the first, type is double with decorrelation x0000 1101 0000 0000*/
opj_read_bytes ( p_header_data , & l_tmp , 2 ) ; /* Imct */
p_header_data + = 2 ;
l_indix = l_tmp & 0xff ;
l_mct_data = l_tcp - > m_mct_records ;
for ( i = 0 ; i < l_tcp - > m_nb_mct_records ; + + i ) {
if ( l_mct_data - > m_index = = l_indix ) {
break ;
}
+ + l_mct_data ;
}
/* NOT FOUND */
if ( i = = l_tcp - > m_nb_mct_records ) {
if ( l_tcp - > m_nb_mct_records = = l_tcp - > m_nb_max_mct_records ) {
l_tcp - > m_nb_max_mct_records + = J2K_MCT_DEFAULT_NB_RECORDS ;
l_tcp - > m_mct_records = ( opj_mct_data_t * ) opj_realloc ( l_tcp - > m_mct_records , l_tcp - > m_nb_max_mct_records * sizeof ( opj_mct_data_t ) ) ;
if ( ! l_tcp - > m_mct_records ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCT marker \n " ) ;
return OPJ_FALSE ;
}
l_mct_data = l_tcp - > m_mct_records + l_tcp - > m_nb_mct_records ;
memset ( l_mct_data , 0 , ( l_tcp - > m_nb_max_mct_records - l_tcp - > m_nb_mct_records ) * sizeof ( opj_mct_data_t ) ) ;
}
l_mct_data = l_tcp - > m_mct_records + l_tcp - > m_nb_mct_records ;
}
if ( l_mct_data - > m_data ) {
opj_free ( l_mct_data - > m_data ) ;
l_mct_data - > m_data = 00 ;
}
l_mct_data - > m_index = l_indix ;
l_mct_data - > m_array_type = ( J2K_MCT_ARRAY_TYPE ) ( ( l_tmp > > 8 ) & 3 ) ;
l_mct_data - > m_element_type = ( J2K_MCT_ELEMENT_TYPE ) ( ( l_tmp > > 10 ) & 3 ) ;
opj_read_bytes ( p_header_data , & l_tmp , 2 ) ; /* Ymct */
p_header_data + = 2 ;
if ( l_tmp ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge multiple MCT markers \n " ) ;
return OPJ_TRUE ;
}
p_header_size - = 6 ;
l_mct_data - > m_data = ( OPJ_BYTE * ) opj_malloc ( p_header_size ) ;
if ( ! l_mct_data - > m_data ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCT marker \n " ) ;
return OPJ_FALSE ;
}
memcpy ( l_mct_data - > m_data , p_header_data , p_header_size ) ;
l_mct_data - > m_data_size = p_header_size ;
+ + l_tcp - > m_nb_mct_records ;
return OPJ_TRUE ;
}
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/**
* Reads a MCC marker ( Multiple Component Collection )
*
* @ param p_header_data the data contained in the MCC box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the MCC marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_mcc ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager )
{
OPJ_UINT32 i , j ;
OPJ_UINT32 l_tmp ;
OPJ_UINT32 l_indix ;
opj_tcp_v2_t * l_tcp ;
opj_simple_mcc_decorrelation_data_t * l_mcc_record ;
opj_mct_data_t * l_mct_data ;
OPJ_UINT32 l_nb_collections ;
OPJ_UINT32 l_nb_comps ;
OPJ_UINT32 l_nb_bytes_by_comp ;
/* preconditions */
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
l_tcp = p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ?
& p_j2k - > m_cp . tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
if ( p_header_size < 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
/* first marker */
opj_read_bytes ( p_header_data , & l_tmp , 2 ) ; /* Zmcc */
p_header_data + = 2 ;
if ( l_tmp ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge multiple data spanning \n " ) ;
return OPJ_TRUE ;
}
if ( p_header_size < 7 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_indix , 1 ) ; /* Imcc -> no need for other values, take the first */
+ + p_header_data ;
l_mcc_record = l_tcp - > m_mcc_records ;
for ( i = 0 ; i < l_tcp - > m_nb_mcc_records ; + + i ) {
if ( l_mcc_record - > m_index = = l_indix ) {
break ;
}
+ + l_mcc_record ;
}
/** NOT FOUND */
if ( i = = l_tcp - > m_nb_mcc_records ) {
if ( l_tcp - > m_nb_mcc_records = = l_tcp - > m_nb_max_mcc_records ) {
l_tcp - > m_nb_max_mcc_records + = J2K_MCC_DEFAULT_NB_RECORDS ;
l_tcp - > m_mcc_records = ( opj_simple_mcc_decorrelation_data_t * )
opj_realloc ( l_tcp - > m_mcc_records , l_tcp - > m_nb_max_mcc_records * sizeof ( opj_simple_mcc_decorrelation_data_t ) ) ;
if ( ! l_tcp - > m_mcc_records ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
l_mcc_record = l_tcp - > m_mcc_records + l_tcp - > m_nb_mcc_records ;
memset ( l_mcc_record , 0 , ( l_tcp - > m_nb_max_mcc_records - l_tcp - > m_nb_mcc_records ) * sizeof ( opj_simple_mcc_decorrelation_data_t ) ) ;
}
l_mcc_record = l_tcp - > m_mcc_records + l_tcp - > m_nb_mcc_records ;
}
l_mcc_record - > m_index = l_indix ;
/* only one marker atm */
opj_read_bytes ( p_header_data , & l_tmp , 2 ) ; /* Ymcc */
p_header_data + = 2 ;
if ( l_tmp ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge multiple data spanning \n " ) ;
return OPJ_TRUE ;
}
opj_read_bytes ( p_header_data , & l_nb_collections , 2 ) ; /* Qmcc -> number of collections -> 1 */
p_header_data + = 2 ;
if ( l_nb_collections > 1 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge multiple collections \n " ) ;
return OPJ_TRUE ;
}
p_header_size - = 7 ;
for ( i = 0 ; i < l_nb_collections ; + + i ) {
if ( p_header_size < 3 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_tmp , 1 ) ; /* Xmcci type of component transformation -> array based decorrelation */
+ + p_header_data ;
if ( l_tmp ! = 1 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge collections other than array decorrelation \n " ) ;
return OPJ_TRUE ;
}
opj_read_bytes ( p_header_data , & l_nb_comps , 2 ) ;
p_header_data + = 2 ;
p_header_size - = 3 ;
l_nb_bytes_by_comp = 1 + ( l_nb_comps > > 15 ) ;
l_mcc_record - > m_nb_comps = l_nb_comps & 0x7fff ;
if ( p_header_size < ( l_nb_bytes_by_comp * l_mcc_record - > m_nb_comps + 2 ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
p_header_size - = ( l_nb_bytes_by_comp * l_mcc_record - > m_nb_comps + 2 ) ;
for ( j = 0 ; j < l_mcc_record - > m_nb_comps ; + + j ) {
opj_read_bytes ( p_header_data , & l_tmp , l_nb_bytes_by_comp ) ; /* Cmccij Component offset*/
p_header_data + = l_nb_bytes_by_comp ;
if ( l_tmp ! = j ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge collections with indix shuffle \n " ) ;
return OPJ_TRUE ;
}
}
opj_read_bytes ( p_header_data , & l_nb_comps , 2 ) ;
p_header_data + = 2 ;
l_nb_bytes_by_comp = 1 + ( l_nb_comps > > 15 ) ;
l_nb_comps & = 0x7fff ;
if ( l_nb_comps ! = l_mcc_record - > m_nb_comps ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge collections without same number of indixes \n " ) ;
return OPJ_TRUE ;
}
if ( p_header_size < ( l_nb_bytes_by_comp * l_mcc_record - > m_nb_comps + 3 ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
p_header_size - = ( l_nb_bytes_by_comp * l_mcc_record - > m_nb_comps + 3 ) ;
for ( j = 0 ; j < l_mcc_record - > m_nb_comps ; + + j ) {
opj_read_bytes ( p_header_data , & l_tmp , l_nb_bytes_by_comp ) ; /* Wmccij Component offset*/
p_header_data + = l_nb_bytes_by_comp ;
if ( l_tmp ! = j ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge collections with indix shuffle \n " ) ;
return OPJ_TRUE ;
}
}
opj_read_bytes ( p_header_data , & l_tmp , 3 ) ; /* Wmccij Component offset*/
p_header_data + = 3 ;
l_mcc_record - > m_is_irreversible = ! ( ( l_tmp > > 16 ) & 1 ) ;
l_mcc_record - > m_decorrelation_array = 00 ;
l_mcc_record - > m_offset_array = 00 ;
l_indix = l_tmp & 0xff ;
if ( l_indix ! = 0 ) {
l_mct_data = l_tcp - > m_mct_records ;
for ( j = 0 ; j < l_tcp - > m_nb_mct_records ; + + j ) {
if ( l_mct_data - > m_index = = l_indix ) {
l_mcc_record - > m_decorrelation_array = l_mct_data ;
break ;
}
+ + l_mct_data ;
}
if ( l_mcc_record - > m_decorrelation_array = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
}
l_indix = ( l_tmp > > 8 ) & 0xff ;
if ( l_indix ! = 0 ) {
l_mct_data = l_tcp - > m_mct_records ;
for ( j = 0 ; j < l_tcp - > m_nb_mct_records ; + + j ) {
if ( l_mct_data - > m_index = = l_indix ) {
l_mcc_record - > m_offset_array = l_mct_data ;
break ;
}
+ + l_mct_data ;
}
if ( l_mcc_record - > m_offset_array = = 00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
}
}
if ( p_header_size ! = 0 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCC marker \n " ) ;
return OPJ_FALSE ;
}
+ + l_tcp - > m_nb_mcc_records ;
return OPJ_TRUE ;
}
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2011-10-12 16:34:17 +02:00
/**
* Reads a MCO marker ( Multiple Component Transform Ordering )
*
* @ param p_header_data the data contained in the MCO box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the MCO marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_mco ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager )
{
OPJ_UINT32 l_tmp , i ;
OPJ_UINT32 l_nb_stages ;
opj_tcp_v2_t * l_tcp ;
opj_tccp_t * l_tccp ;
opj_image_t * l_image ;
opj_image_comp_t * l_img_comp ;
/* preconditions */
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_image = p_j2k - > m_private_image ;
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l_tcp = p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ?
& p_j2k - > m_cp . tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
if ( p_header_size < 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading MCO marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_nb_stages , 1 ) ; /* Nmco : only one tranform stage*/
+ + p_header_data ;
if ( l_nb_stages > 1 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Cannot take in charge multiple transformation stages. \n " ) ;
return OPJ_TRUE ;
}
if ( p_header_size ! = l_nb_stages + 1 ) {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Error reading MCO marker \n " ) ;
return OPJ_FALSE ;
}
l_tccp = l_tcp - > tccps ;
l_img_comp = l_image - > comps ;
for ( i = 0 ; i < l_image - > numcomps ; + + i ) {
l_tccp - > m_dc_level_shift = 0 ;
+ + l_tccp ;
}
if ( l_tcp - > m_mct_decoding_matrix ) {
opj_free ( l_tcp - > m_mct_decoding_matrix ) ;
l_tcp - > m_mct_decoding_matrix = 00 ;
}
for ( i = 0 ; i < l_nb_stages ; + + i ) {
opj_read_bytes ( p_header_data , & l_tmp , 1 ) ;
+ + p_header_data ;
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if ( ! j2k_add_mct ( l_tcp , p_j2k - > m_private_image , l_tmp ) ) {
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return OPJ_FALSE ;
}
}
return OPJ_TRUE ;
}
opj_bool j2k_add_mct ( opj_tcp_v2_t * p_tcp , opj_image_t * p_image , OPJ_UINT32 p_index )
{
OPJ_UINT32 i ;
opj_simple_mcc_decorrelation_data_t * l_mcc_record ;
opj_mct_data_t * l_deco_array , * l_offset_array ;
OPJ_UINT32 l_data_size , l_mct_size , l_offset_size ;
OPJ_UINT32 l_nb_elem ;
OPJ_UINT32 * l_offset_data , * l_current_offset_data ;
opj_tccp_t * l_tccp ;
/* preconditions */
assert ( p_tcp ! = 00 ) ;
l_mcc_record = p_tcp - > m_mcc_records ;
for ( i = 0 ; i < p_tcp - > m_nb_mcc_records ; + + i ) {
if ( l_mcc_record - > m_index = = p_index ) {
break ;
}
}
if ( i = = p_tcp - > m_nb_mcc_records ) {
/** element discarded **/
return OPJ_TRUE ;
}
if ( l_mcc_record - > m_nb_comps ! = p_image - > numcomps ) {
/** do not support number of comps != image */
return OPJ_TRUE ;
}
l_deco_array = l_mcc_record - > m_decorrelation_array ;
if ( l_deco_array ) {
l_data_size = MCT_ELEMENT_SIZE [ l_deco_array - > m_element_type ] * p_image - > numcomps * p_image - > numcomps ;
if ( l_deco_array - > m_data_size ! = l_data_size ) {
return OPJ_FALSE ;
}
l_nb_elem = p_image - > numcomps * p_image - > numcomps ;
l_mct_size = l_nb_elem * sizeof ( OPJ_FLOAT32 ) ;
p_tcp - > m_mct_decoding_matrix = ( OPJ_FLOAT32 * ) opj_malloc ( l_mct_size ) ;
if ( ! p_tcp - > m_mct_decoding_matrix ) {
return OPJ_FALSE ;
}
j2k_mct_read_functions_to_float [ l_deco_array - > m_element_type ] ( l_deco_array - > m_data , p_tcp - > m_mct_decoding_matrix , l_nb_elem ) ;
}
l_offset_array = l_mcc_record - > m_offset_array ;
if ( l_offset_array ) {
l_data_size = MCT_ELEMENT_SIZE [ l_offset_array - > m_element_type ] * p_image - > numcomps ;
if ( l_offset_array - > m_data_size ! = l_data_size ) {
return OPJ_FALSE ;
}
l_nb_elem = p_image - > numcomps ;
l_offset_size = l_nb_elem * sizeof ( OPJ_UINT32 ) ;
l_offset_data = ( OPJ_UINT32 * ) opj_malloc ( l_offset_size ) ;
if ( ! l_offset_data ) {
return OPJ_FALSE ;
}
j2k_mct_read_functions_to_int32 [ l_offset_array - > m_element_type ] ( l_offset_array - > m_data , l_offset_data , l_nb_elem ) ;
l_tccp = p_tcp - > tccps ;
l_current_offset_data = l_offset_data ;
for ( i = 0 ; i < p_image - > numcomps ; + + i ) {
l_tccp - > m_dc_level_shift = * ( l_current_offset_data + + ) ;
+ + l_tccp ;
}
opj_free ( l_offset_data ) ;
}
return OPJ_TRUE ;
}
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/**
* Reads a CBD marker ( Component bit depth definition )
* @ param p_header_data the data contained in the CBD box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the CBD marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_cbd ( opj_j2k_v2_t * p_j2k ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 p_header_size ,
struct opj_event_mgr * p_manager )
{
OPJ_UINT32 l_nb_comp , l_num_comp ;
OPJ_UINT32 l_comp_def ;
OPJ_UINT32 i ;
opj_image_comp_t * l_comp = 00 ;
/* preconditions */
assert ( p_header_data ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_num_comp = p_j2k - > m_private_image - > numcomps ;
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if ( p_header_size ! = ( p_j2k - > m_private_image - > numcomps + 2 ) ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Crror reading CBD marker \n " ) ;
return OPJ_FALSE ;
}
opj_read_bytes ( p_header_data , & l_nb_comp , 2 ) ; /* Ncbd */
p_header_data + = 2 ;
if ( l_nb_comp ! = l_num_comp ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Crror reading CBD marker \n " ) ;
return OPJ_FALSE ;
}
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l_comp = p_j2k - > m_private_image - > comps ;
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for ( i = 0 ; i < l_num_comp ; + + i ) {
opj_read_bytes ( p_header_data , & l_comp_def , 1 ) ; /* Component bit depth */
+ + p_header_data ;
l_comp - > sgnd = ( l_comp_def > > 7 ) & 1 ;
l_comp - > prec = ( l_comp_def & 0x7f ) + 1 ;
+ + l_comp ;
}
return OPJ_TRUE ;
}
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/* ----------------------------------------------------------------------- */
/* J2K / JPT decoder interface */
/* ----------------------------------------------------------------------- */
opj_j2k_t * j2k_create_decompress ( opj_common_ptr cinfo ) {
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opj_j2k_t * j2k = ( opj_j2k_t * ) opj_calloc ( 1 , sizeof ( opj_j2k_t ) ) ;
if ( ! j2k )
return NULL ;
j2k - > default_tcp = ( opj_tcp_t * ) opj_calloc ( 1 , sizeof ( opj_tcp_t ) ) ;
if ( ! j2k - > default_tcp ) {
opj_free ( j2k ) ;
return NULL ;
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}
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j2k - > cinfo = cinfo ;
j2k - > tile_data = NULL ;
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return j2k ;
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}
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void j2k_destroy_decompress ( opj_j2k_t * j2k ) {
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int i = 0 ;
if ( j2k - > tile_len ! = NULL ) {
opj_free ( j2k - > tile_len ) ;
}
if ( j2k - > tile_data ! = NULL ) {
opj_free ( j2k - > tile_data ) ;
}
if ( j2k - > default_tcp ! = NULL ) {
opj_tcp_t * default_tcp = j2k - > default_tcp ;
if ( default_tcp - > ppt_data_first ! = NULL ) {
opj_free ( default_tcp - > ppt_data_first ) ;
}
if ( j2k - > default_tcp - > tccps ! = NULL ) {
opj_free ( j2k - > default_tcp - > tccps ) ;
}
opj_free ( j2k - > default_tcp ) ;
}
if ( j2k - > cp ! = NULL ) {
opj_cp_t * cp = j2k - > cp ;
if ( cp - > tcps ! = NULL ) {
for ( i = 0 ; i < cp - > tw * cp - > th ; i + + ) {
if ( cp - > tcps [ i ] . ppt_data_first ! = NULL ) {
opj_free ( cp - > tcps [ i ] . ppt_data_first ) ;
}
if ( cp - > tcps [ i ] . tccps ! = NULL ) {
opj_free ( cp - > tcps [ i ] . tccps ) ;
}
}
opj_free ( cp - > tcps ) ;
}
if ( cp - > ppm_data_first ! = NULL ) {
opj_free ( cp - > ppm_data_first ) ;
}
if ( cp - > tileno ! = NULL ) {
opj_free ( cp - > tileno ) ;
}
if ( cp - > comment ! = NULL ) {
opj_free ( cp - > comment ) ;
}
opj_free ( cp ) ;
}
opj_free ( j2k ) ;
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}
void j2k_setup_decoder ( opj_j2k_t * j2k , opj_dparameters_t * parameters ) {
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if ( j2k & & parameters ) {
/* create and initialize the coding parameters structure */
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opj_cp_t * cp = ( opj_cp_t * ) opj_calloc ( 1 , sizeof ( opj_cp_t ) ) ;
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cp - > reduce = parameters - > cp_reduce ;
cp - > layer = parameters - > cp_layer ;
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cp - > limit_decoding = parameters - > cp_limit_decoding ;
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# ifdef USE_JPWL
cp - > correct = parameters - > jpwl_correct ;
cp - > exp_comps = parameters - > jpwl_exp_comps ;
cp - > max_tiles = parameters - > jpwl_max_tiles ;
# endif /* USE_JPWL */
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/* keep a link to cp so that we can destroy it later in j2k_destroy_decompress */
j2k - > cp = cp ;
}
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}
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void j2k_setup_decoder_v2 ( opj_j2k_v2_t * j2k , opj_dparameters_t * parameters )
{
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if ( j2k & & parameters ) {
j2k - > m_cp . m_specific_param . m_dec . m_layer = parameters - > cp_layer ;
j2k - > m_cp . m_specific_param . m_dec . m_reduce = parameters - > cp_reduce ;
# ifdef USE_JPWL
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j2k - > m_cp . correct = parameters - > jpwl_correct ;
j2k - > m_cp . exp_comps = parameters - > jpwl_exp_comps ;
j2k - > m_cp . max_tiles = parameters - > jpwl_max_tiles ;
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# endif /* USE_JPWL */
}
}
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opj_image_t * j2k_decode ( opj_j2k_t * j2k , opj_cio_t * cio , opj_codestream_info_t * cstr_info ) {
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opj_image_t * image = NULL ;
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opj_common_ptr cinfo = j2k - > cinfo ;
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j2k - > cio = cio ;
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j2k - > cstr_info = cstr_info ;
if ( cstr_info )
memset ( cstr_info , 0 , sizeof ( opj_codestream_info_t ) ) ;
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/* create an empty image */
image = opj_image_create0 ( ) ;
j2k - > image = image ;
j2k - > state = J2K_STATE_MHSOC ;
for ( ; ; ) {
opj_dec_mstabent_t * e ;
int id = cio_read ( cio , 2 ) ;
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# ifdef USE_JPWL
/* we try to honor JPWL correction power */
if ( j2k - > cp - > correct ) {
int orig_pos = cio_tell ( cio ) ;
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opj_bool status ;
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/* call the corrector */
status = jpwl_correct ( j2k ) ;
/* go back to where you were */
cio_seek ( cio , orig_pos - 2 ) ;
/* re-read the marker */
id = cio_read ( cio , 2 ) ;
/* check whether it begins with ff */
if ( id > > 8 ! = 0xff ) {
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opj_event_msg ( cinfo , EVT_ERROR ,
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" JPWL: possible bad marker %x at %d \n " ,
id , cio_tell ( cio ) - 2 ) ;
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if ( ! JPWL_ASSUME ) {
opj_image_destroy ( image ) ;
opj_event_msg ( cinfo , EVT_ERROR , " JPWL: giving up \n " ) ;
return 0 ;
}
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/* we try to correct */
id = id | 0xff00 ;
cio_seek ( cio , cio_tell ( cio ) - 2 ) ;
cio_write ( cio , id , 2 ) ;
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opj_event_msg ( cinfo , EVT_WARNING , " - trying to adjust this \n "
" - setting marker to %x \n " ,
id ) ;
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}
}
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# endif /* USE_JPWL */
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if ( id > > 8 ! = 0xff ) {
opj_image_destroy ( image ) ;
opj_event_msg ( cinfo , EVT_ERROR , " %.8x: expected a marker instead of %x \n " , cio_tell ( cio ) - 2 , id ) ;
return 0 ;
}
e = j2k_dec_mstab_lookup ( id ) ;
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// Check if the marker is known
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if ( ! ( j2k - > state & e - > states ) ) {
opj_image_destroy ( image ) ;
opj_event_msg ( cinfo , EVT_ERROR , " %.8x: unexpected marker %x \n " , cio_tell ( cio ) - 2 , id ) ;
return 0 ;
}
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// Check if the decoding is limited to the main header
if ( e - > id = = J2K_MS_SOT & & j2k - > cp - > limit_decoding = = LIMIT_TO_MAIN_HEADER ) {
opj_event_msg ( cinfo , EVT_INFO , " Main Header decoded. \n " ) ;
return image ;
}
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if ( e - > handler ) {
( * e - > handler ) ( j2k ) ;
}
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if ( j2k - > state & J2K_STATE_ERR )
return NULL ;
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if ( j2k - > state = = J2K_STATE_MT ) {
break ;
}
if ( j2k - > state = = J2K_STATE_NEOC ) {
break ;
}
}
if ( j2k - > state = = J2K_STATE_NEOC ) {
j2k_read_eoc ( j2k ) ;
}
if ( j2k - > state ! = J2K_STATE_MT ) {
opj_event_msg ( cinfo , EVT_WARNING , " Incomplete bitstream \n " ) ;
}
return image ;
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}
2003-11-27 11:10:17 +01:00
2004-02-13 10:38:52 +01:00
/*
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* Read a JPT - stream and decode file
*
*/
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opj_image_t * j2k_decode_jpt_stream ( opj_j2k_t * j2k , opj_cio_t * cio , opj_codestream_info_t * cstr_info ) {
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opj_image_t * image = NULL ;
opj_jpt_msg_header_t header ;
int position ;
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opj_common_ptr cinfo = j2k - > cinfo ;
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OPJ_ARG_NOT_USED ( cstr_info ) ;
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j2k - > cio = cio ;
/* create an empty image */
image = opj_image_create0 ( ) ;
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j2k - > image = image ;
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j2k - > state = J2K_STATE_MHSOC ;
/* Initialize the header */
jpt_init_msg_header ( & header ) ;
/* Read the first header of the message */
jpt_read_msg_header ( cinfo , cio , & header ) ;
position = cio_tell ( cio ) ;
if ( header . Class_Id ! = 6 ) { /* 6 : Main header data-bin message */
opj_image_destroy ( image ) ;
opj_event_msg ( cinfo , EVT_ERROR , " [JPT-stream] : Expecting Main header first [class_Id %d] ! \n " , header . Class_Id ) ;
return 0 ;
}
for ( ; ; ) {
opj_dec_mstabent_t * e = NULL ;
int id ;
if ( ! cio_numbytesleft ( cio ) ) {
j2k_read_eoc ( j2k ) ;
return image ;
}
/* data-bin read -> need to read a new header */
if ( ( unsigned int ) ( cio_tell ( cio ) - position ) = = header . Msg_length ) {
jpt_read_msg_header ( cinfo , cio , & header ) ;
position = cio_tell ( cio ) ;
if ( header . Class_Id ! = 4 ) { /* 4 : Tile data-bin message */
opj_image_destroy ( image ) ;
opj_event_msg ( cinfo , EVT_ERROR , " [JPT-stream] : Expecting Tile info ! \n " ) ;
return 0 ;
}
}
id = cio_read ( cio , 2 ) ;
if ( id > > 8 ! = 0xff ) {
opj_image_destroy ( image ) ;
opj_event_msg ( cinfo , EVT_ERROR , " %.8x: expected a marker instead of %x \n " , cio_tell ( cio ) - 2 , id ) ;
return 0 ;
}
e = j2k_dec_mstab_lookup ( id ) ;
if ( ! ( j2k - > state & e - > states ) ) {
opj_image_destroy ( image ) ;
opj_event_msg ( cinfo , EVT_ERROR , " %.8x: unexpected marker %x \n " , cio_tell ( cio ) - 2 , id ) ;
return 0 ;
}
if ( e - > handler ) {
( * e - > handler ) ( j2k ) ;
}
if ( j2k - > state = = J2K_STATE_MT ) {
break ;
}
if ( j2k - > state = = J2K_STATE_NEOC ) {
break ;
}
}
if ( j2k - > state = = J2K_STATE_NEOC ) {
j2k_read_eoc ( j2k ) ;
}
if ( j2k - > state ! = J2K_STATE_MT ) {
opj_event_msg ( cinfo , EVT_WARNING , " Incomplete bitstream \n " ) ;
}
return image ;
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}
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/* ----------------------------------------------------------------------- */
/* J2K encoder interface */
/* ----------------------------------------------------------------------- */
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opj_j2k_t * j2k_create_compress ( opj_common_ptr cinfo ) {
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opj_j2k_t * j2k = ( opj_j2k_t * ) opj_calloc ( 1 , sizeof ( opj_j2k_t ) ) ;
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if ( j2k ) {
j2k - > cinfo = cinfo ;
}
return j2k ;
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}
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opj_j2k_v2_t * j2k_create_compress_v2 ( )
{
opj_j2k_v2_t * l_j2k = ( opj_j2k_v2_t * ) opj_malloc ( sizeof ( opj_j2k_v2_t ) ) ;
if ( ! l_j2k ) {
return NULL ;
}
memset ( l_j2k , 0 , sizeof ( opj_j2k_v2_t ) ) ;
l_j2k - > m_is_decoder = 0 ;
l_j2k - > m_cp . m_is_decoder = 0 ;
l_j2k - > m_specific_param . m_encoder . m_header_tile_data = ( OPJ_BYTE * ) opj_malloc ( J2K_DEFAULT_HEADER_SIZE ) ;
if ( ! l_j2k - > m_specific_param . m_encoder . m_header_tile_data ) {
j2k_destroy ( l_j2k ) ;
return NULL ;
}
l_j2k - > m_specific_param . m_encoder . m_header_tile_data_size = J2K_DEFAULT_HEADER_SIZE ;
// validation list creation
l_j2k - > m_validation_list = opj_procedure_list_create ( ) ;
if ( ! l_j2k - > m_validation_list ) {
j2k_destroy ( l_j2k ) ;
return NULL ;
}
// execution list creation
l_j2k - > m_procedure_list = opj_procedure_list_create ( ) ;
if ( ! l_j2k - > m_procedure_list ) {
j2k_destroy ( l_j2k ) ;
return NULL ;
}
return l_j2k ;
}
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void j2k_destroy_compress ( opj_j2k_t * j2k ) {
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int tileno ;
if ( ! j2k ) return ;
if ( j2k - > cp ! = NULL ) {
opj_cp_t * cp = j2k - > cp ;
if ( cp - > comment ) {
opj_free ( cp - > comment ) ;
}
if ( cp - > matrice ) {
opj_free ( cp - > matrice ) ;
}
for ( tileno = 0 ; tileno < cp - > tw * cp - > th ; tileno + + ) {
opj_free ( cp - > tcps [ tileno ] . tccps ) ;
}
opj_free ( cp - > tcps ) ;
opj_free ( cp ) ;
}
opj_free ( j2k ) ;
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}
void j2k_setup_encoder ( opj_j2k_t * j2k , opj_cparameters_t * parameters , opj_image_t * image ) {
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int i , j , tileno , numpocs_tile ;
opj_cp_t * cp = NULL ;
if ( ! j2k | | ! parameters | | ! image ) {
return ;
}
/* create and initialize the coding parameters structure */
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cp = ( opj_cp_t * ) opj_calloc ( 1 , sizeof ( opj_cp_t ) ) ;
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/* keep a link to cp so that we can destroy it later in j2k_destroy_compress */
j2k - > cp = cp ;
/* set default values for cp */
cp - > tw = 1 ;
cp - > th = 1 ;
/*
copy user encoding parameters
*/
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cp - > cinema = parameters - > cp_cinema ;
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cp - > max_comp_size = parameters - > max_comp_size ;
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cp - > rsiz = parameters - > cp_rsiz ;
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cp - > disto_alloc = parameters - > cp_disto_alloc ;
cp - > fixed_alloc = parameters - > cp_fixed_alloc ;
cp - > fixed_quality = parameters - > cp_fixed_quality ;
/* mod fixed_quality */
if ( parameters - > cp_matrice ) {
size_t array_size = parameters - > tcp_numlayers * parameters - > numresolution * 3 * sizeof ( int ) ;
cp - > matrice = ( int * ) opj_malloc ( array_size ) ;
memcpy ( cp - > matrice , parameters - > cp_matrice , array_size ) ;
}
/* tiles */
cp - > tdx = parameters - > cp_tdx ;
cp - > tdy = parameters - > cp_tdy ;
/* tile offset */
cp - > tx0 = parameters - > cp_tx0 ;
cp - > ty0 = parameters - > cp_ty0 ;
/* comment string */
if ( parameters - > cp_comment ) {
cp - > comment = ( char * ) opj_malloc ( strlen ( parameters - > cp_comment ) + 1 ) ;
if ( cp - > comment ) {
strcpy ( cp - > comment , parameters - > cp_comment ) ;
}
}
/*
calculate other encoding parameters
*/
if ( parameters - > tile_size_on ) {
cp - > tw = int_ceildiv ( image - > x1 - cp - > tx0 , cp - > tdx ) ;
cp - > th = int_ceildiv ( image - > y1 - cp - > ty0 , cp - > tdy ) ;
} else {
cp - > tdx = image - > x1 - cp - > tx0 ;
cp - > tdy = image - > y1 - cp - > ty0 ;
}
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if ( parameters - > tp_on ) {
cp - > tp_flag = parameters - > tp_flag ;
cp - > tp_on = 1 ;
}
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cp - > img_size = 0 ;
for ( i = 0 ; i < image - > numcomps ; i + + ) {
cp - > img_size + = ( image - > comps [ i ] . w * image - > comps [ i ] . h * image - > comps [ i ] . prec ) ;
}
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# ifdef USE_JPWL
/*
calculate JPWL encoding parameters
*/
if ( parameters - > jpwl_epc_on ) {
int i ;
/* set JPWL on */
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cp - > epc_on = OPJ_TRUE ;
cp - > info_on = OPJ_FALSE ; /* no informative technique */
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/* set EPB on */
if ( ( parameters - > jpwl_hprot_MH > 0 ) | | ( parameters - > jpwl_hprot_TPH [ 0 ] > 0 ) ) {
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cp - > epb_on = OPJ_TRUE ;
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cp - > hprot_MH = parameters - > jpwl_hprot_MH ;
for ( i = 0 ; i < JPWL_MAX_NO_TILESPECS ; i + + ) {
cp - > hprot_TPH_tileno [ i ] = parameters - > jpwl_hprot_TPH_tileno [ i ] ;
cp - > hprot_TPH [ i ] = parameters - > jpwl_hprot_TPH [ i ] ;
}
/* if tile specs are not specified, copy MH specs */
if ( cp - > hprot_TPH [ 0 ] = = - 1 ) {
cp - > hprot_TPH_tileno [ 0 ] = 0 ;
cp - > hprot_TPH [ 0 ] = parameters - > jpwl_hprot_MH ;
}
for ( i = 0 ; i < JPWL_MAX_NO_PACKSPECS ; i + + ) {
cp - > pprot_tileno [ i ] = parameters - > jpwl_pprot_tileno [ i ] ;
cp - > pprot_packno [ i ] = parameters - > jpwl_pprot_packno [ i ] ;
cp - > pprot [ i ] = parameters - > jpwl_pprot [ i ] ;
}
}
/* set ESD writing */
if ( ( parameters - > jpwl_sens_size = = 1 ) | | ( parameters - > jpwl_sens_size = = 2 ) ) {
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cp - > esd_on = OPJ_TRUE ;
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cp - > sens_size = parameters - > jpwl_sens_size ;
cp - > sens_addr = parameters - > jpwl_sens_addr ;
cp - > sens_range = parameters - > jpwl_sens_range ;
cp - > sens_MH = parameters - > jpwl_sens_MH ;
for ( i = 0 ; i < JPWL_MAX_NO_TILESPECS ; i + + ) {
cp - > sens_TPH_tileno [ i ] = parameters - > jpwl_sens_TPH_tileno [ i ] ;
cp - > sens_TPH [ i ] = parameters - > jpwl_sens_TPH [ i ] ;
}
}
/* always set RED writing to false: we are at the encoder */
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cp - > red_on = OPJ_FALSE ;
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} else {
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cp - > epc_on = OPJ_FALSE ;
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}
# endif /* USE_JPWL */
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/* initialize the mutiple tiles */
/* ---------------------------- */
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cp - > tcps = ( opj_tcp_t * ) opj_calloc ( cp - > tw * cp - > th , sizeof ( opj_tcp_t ) ) ;
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for ( tileno = 0 ; tileno < cp - > tw * cp - > th ; tileno + + ) {
opj_tcp_t * tcp = & cp - > tcps [ tileno ] ;
tcp - > numlayers = parameters - > tcp_numlayers ;
for ( j = 0 ; j < tcp - > numlayers ; j + + ) {
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if ( cp - > cinema ) {
if ( cp - > fixed_quality ) {
tcp - > distoratio [ j ] = parameters - > tcp_distoratio [ j ] ;
}
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tcp - > rates [ j ] = parameters - > tcp_rates [ j ] ;
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} else {
if ( cp - > fixed_quality ) { /* add fixed_quality */
tcp - > distoratio [ j ] = parameters - > tcp_distoratio [ j ] ;
} else {
tcp - > rates [ j ] = parameters - > tcp_rates [ j ] ;
}
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}
}
tcp - > csty = parameters - > csty ;
tcp - > prg = parameters - > prog_order ;
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tcp - > mct = parameters - > tcp_mct ;
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numpocs_tile = 0 ;
tcp - > POC = 0 ;
if ( parameters - > numpocs ) {
/* initialisation of POC */
tcp - > POC = 1 ;
for ( i = 0 ; i < parameters - > numpocs ; i + + ) {
if ( ( tileno = = parameters - > POC [ i ] . tile - 1 ) | | ( parameters - > POC [ i ] . tile = = - 1 ) ) {
opj_poc_t * tcp_poc = & tcp - > pocs [ numpocs_tile ] ;
tcp_poc - > resno0 = parameters - > POC [ numpocs_tile ] . resno0 ;
tcp_poc - > compno0 = parameters - > POC [ numpocs_tile ] . compno0 ;
tcp_poc - > layno1 = parameters - > POC [ numpocs_tile ] . layno1 ;
tcp_poc - > resno1 = parameters - > POC [ numpocs_tile ] . resno1 ;
tcp_poc - > compno1 = parameters - > POC [ numpocs_tile ] . compno1 ;
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tcp_poc - > prg1 = parameters - > POC [ numpocs_tile ] . prg1 ;
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tcp_poc - > tile = parameters - > POC [ numpocs_tile ] . tile ;
numpocs_tile + + ;
}
}
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tcp - > numpocs = numpocs_tile - 1 ;
} else {
tcp - > numpocs = 0 ;
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}
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tcp - > tccps = ( opj_tccp_t * ) opj_calloc ( image - > numcomps , sizeof ( opj_tccp_t ) ) ;
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for ( i = 0 ; i < image - > numcomps ; i + + ) {
opj_tccp_t * tccp = & tcp - > tccps [ i ] ;
tccp - > csty = parameters - > csty & 0x01 ; /* 0 => one precinct || 1 => custom precinct */
tccp - > numresolutions = parameters - > numresolution ;
tccp - > cblkw = int_floorlog2 ( parameters - > cblockw_init ) ;
tccp - > cblkh = int_floorlog2 ( parameters - > cblockh_init ) ;
tccp - > cblksty = parameters - > mode ;
tccp - > qmfbid = parameters - > irreversible ? 0 : 1 ;
tccp - > qntsty = parameters - > irreversible ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT ;
tccp - > numgbits = 2 ;
if ( i = = parameters - > roi_compno ) {
tccp - > roishift = parameters - > roi_shift ;
} else {
tccp - > roishift = 0 ;
}
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if ( parameters - > cp_cinema )
{
//Precinct size for lowest frequency subband=128
tccp - > prcw [ 0 ] = 7 ;
tccp - > prch [ 0 ] = 7 ;
//Precinct size at all other resolutions = 256
for ( j = 1 ; j < tccp - > numresolutions ; j + + ) {
tccp - > prcw [ j ] = 8 ;
tccp - > prch [ j ] = 8 ;
}
} else {
if ( parameters - > csty & J2K_CCP_CSTY_PRT ) {
int p = 0 ;
for ( j = tccp - > numresolutions - 1 ; j > = 0 ; j - - ) {
if ( p < parameters - > res_spec ) {
if ( parameters - > prcw_init [ p ] < 1 ) {
tccp - > prcw [ j ] = 1 ;
} else {
tccp - > prcw [ j ] = int_floorlog2 ( parameters - > prcw_init [ p ] ) ;
}
if ( parameters - > prch_init [ p ] < 1 ) {
tccp - > prch [ j ] = 1 ;
} else {
tccp - > prch [ j ] = int_floorlog2 ( parameters - > prch_init [ p ] ) ;
}
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} else {
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int res_spec = parameters - > res_spec ;
int size_prcw = parameters - > prcw_init [ res_spec - 1 ] > > ( p - ( res_spec - 1 ) ) ;
int size_prch = parameters - > prch_init [ res_spec - 1 ] > > ( p - ( res_spec - 1 ) ) ;
if ( size_prcw < 1 ) {
tccp - > prcw [ j ] = 1 ;
} else {
tccp - > prcw [ j ] = int_floorlog2 ( size_prcw ) ;
}
if ( size_prch < 1 ) {
tccp - > prch [ j ] = 1 ;
} else {
tccp - > prch [ j ] = int_floorlog2 ( size_prch ) ;
}
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}
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p + + ;
/*printf("\nsize precinct for level %d : %d,%d\n", j,tccp->prcw[j], tccp->prch[j]); */
} //end for
} else {
for ( j = 0 ; j < tccp - > numresolutions ; j + + ) {
tccp - > prcw [ j ] = 15 ;
tccp - > prch [ j ] = 15 ;
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}
}
}
dwt_calc_explicit_stepsizes ( tccp , image - > comps [ i ] . prec ) ;
}
}
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}
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opj_bool j2k_encode ( opj_j2k_t * j2k , opj_cio_t * cio , opj_image_t * image , opj_codestream_info_t * cstr_info ) {
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int tileno , compno ;
opj_cp_t * cp = NULL ;
opj_tcd_t * tcd = NULL ; /* TCD component */
j2k - > cio = cio ;
j2k - > image = image ;
cp = j2k - > cp ;
/* INDEX >> */
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j2k - > cstr_info = cstr_info ;
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if ( cstr_info ) {
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int compno ;
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cstr_info - > tile = ( opj_tile_info_t * ) opj_malloc ( cp - > tw * cp - > th * sizeof ( opj_tile_info_t ) ) ;
cstr_info - > image_w = image - > x1 - image - > x0 ;
cstr_info - > image_h = image - > y1 - image - > y0 ;
cstr_info - > prog = ( & cp - > tcps [ 0 ] ) - > prg ;
cstr_info - > tw = cp - > tw ;
cstr_info - > th = cp - > th ;
cstr_info - > tile_x = cp - > tdx ; /* new version parser */
cstr_info - > tile_y = cp - > tdy ; /* new version parser */
cstr_info - > tile_Ox = cp - > tx0 ; /* new version parser */
cstr_info - > tile_Oy = cp - > ty0 ; /* new version parser */
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cstr_info - > numcomps = image - > numcomps ;
cstr_info - > numlayers = ( & cp - > tcps [ 0 ] ) - > numlayers ;
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cstr_info - > numdecompos = ( int * ) opj_malloc ( image - > numcomps * sizeof ( int ) ) ;
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for ( compno = 0 ; compno < image - > numcomps ; compno + + ) {
cstr_info - > numdecompos [ compno ] = ( & cp - > tcps [ 0 ] ) - > tccps - > numresolutions - 1 ;
}
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cstr_info - > D_max = 0.0 ; /* ADD Marcela */
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cstr_info - > main_head_start = cio_tell ( cio ) ; /* position of SOC */
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cstr_info - > maxmarknum = 100 ;
cstr_info - > marker = ( opj_marker_info_t * ) opj_malloc ( cstr_info - > maxmarknum * sizeof ( opj_marker_info_t ) ) ;
cstr_info - > marknum = 0 ;
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}
/* << INDEX */
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j2k_write_soc ( j2k ) ;
j2k_write_siz ( j2k ) ;
j2k_write_cod ( j2k ) ;
j2k_write_qcd ( j2k ) ;
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if ( cp - > cinema ) {
for ( compno = 1 ; compno < image - > numcomps ; compno + + ) {
j2k_write_coc ( j2k , compno ) ;
j2k_write_qcc ( j2k , compno ) ;
}
}
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for ( compno = 0 ; compno < image - > numcomps ; compno + + ) {
opj_tcp_t * tcp = & cp - > tcps [ 0 ] ;
if ( tcp - > tccps [ compno ] . roishift )
j2k_write_rgn ( j2k , compno , 0 ) ;
}
if ( cp - > comment ! = NULL ) {
j2k_write_com ( j2k ) ;
}
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j2k - > totnum_tp = j2k_calculate_tp ( cp , image - > numcomps , image , j2k ) ;
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/* TLM Marker*/
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if ( cp - > cinema ) {
j2k_write_tlm ( j2k ) ;
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if ( cp - > cinema = = CINEMA4K_24 ) {
j2k_write_poc ( j2k ) ;
}
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}
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/* uncomment only for testing JPSEC marker writing */
/* j2k_write_sec(j2k); */
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/* INDEX >> */
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if ( cstr_info ) {
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cstr_info - > main_head_end = cio_tell ( cio ) - 1 ;
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}
/* << INDEX */
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/**** Main Header ENDS here ***/
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/* create the tile encoder */
tcd = tcd_create ( j2k - > cinfo ) ;
/* encode each tile */
for ( tileno = 0 ; tileno < cp - > tw * cp - > th ; tileno + + ) {
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int pino ;
int tilepartno = 0 ;
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/* UniPG>> */
int acc_pack_num = 0 ;
/* <<UniPG */
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opj_tcp_t * tcp = & cp - > tcps [ tileno ] ;
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opj_event_msg ( j2k - > cinfo , EVT_INFO , " tile number %d / %d \n " , tileno + 1 , cp - > tw * cp - > th ) ;
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j2k - > curtileno = tileno ;
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j2k - > cur_tp_num = 0 ;
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tcd - > cur_totnum_tp = j2k - > cur_totnum_tp [ j2k - > curtileno ] ;
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/* initialisation before tile encoding */
if ( tileno = = 0 ) {
tcd_malloc_encode ( tcd , image , cp , j2k - > curtileno ) ;
} else {
tcd_init_encode ( tcd , image , cp , j2k - > curtileno ) ;
}
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/* INDEX >> */
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if ( cstr_info ) {
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cstr_info - > tile [ j2k - > curtileno ] . start_pos = cio_tell ( cio ) + j2k - > pos_correction ;
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cstr_info - > tile [ j2k - > curtileno ] . maxmarknum = 10 ;
cstr_info - > tile [ j2k - > curtileno ] . marker = ( opj_marker_info_t * ) opj_malloc ( cstr_info - > tile [ j2k - > curtileno ] . maxmarknum * sizeof ( opj_marker_info_t ) ) ;
cstr_info - > tile [ j2k - > curtileno ] . marknum = 0 ;
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}
/* << INDEX */
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for ( pino = 0 ; pino < = tcp - > numpocs ; pino + + ) {
int tot_num_tp ;
tcd - > cur_pino = pino ;
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/*Get number of tile parts*/
tot_num_tp = j2k_get_num_tp ( cp , pino , tileno ) ;
tcd - > tp_pos = cp - > tp_pos ;
for ( tilepartno = 0 ; tilepartno < tot_num_tp ; tilepartno + + ) {
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j2k - > tp_num = tilepartno ;
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/* INDEX >> */
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if ( cstr_info )
cstr_info - > tile [ j2k - > curtileno ] . tp [ j2k - > cur_tp_num ] . tp_start_pos =
cio_tell ( cio ) + j2k - > pos_correction ;
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/* << INDEX */
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j2k_write_sot ( j2k ) ;
if ( j2k - > cur_tp_num = = 0 & & cp - > cinema = = 0 ) {
for ( compno = 1 ; compno < image - > numcomps ; compno + + ) {
j2k_write_coc ( j2k , compno ) ;
j2k_write_qcc ( j2k , compno ) ;
}
if ( cp - > tcps [ tileno ] . numpocs ) {
j2k_write_poc ( j2k ) ;
}
}
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/* INDEX >> */
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if ( cstr_info )
cstr_info - > tile [ j2k - > curtileno ] . tp [ j2k - > cur_tp_num ] . tp_end_header =
cio_tell ( cio ) + j2k - > pos_correction + 1 ;
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/* << INDEX */
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j2k_write_sod ( j2k , tcd ) ;
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/* INDEX >> */
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if ( cstr_info ) {
cstr_info - > tile [ j2k - > curtileno ] . tp [ j2k - > cur_tp_num ] . tp_end_pos =
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cio_tell ( cio ) + j2k - > pos_correction - 1 ;
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cstr_info - > tile [ j2k - > curtileno ] . tp [ j2k - > cur_tp_num ] . tp_start_pack =
acc_pack_num ;
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cstr_info - > tile [ j2k - > curtileno ] . tp [ j2k - > cur_tp_num ] . tp_numpacks =
cstr_info - > packno - acc_pack_num ;
acc_pack_num = cstr_info - > packno ;
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}
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/* << INDEX */
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j2k - > cur_tp_num + + ;
}
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}
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if ( cstr_info ) {
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cstr_info - > tile [ j2k - > curtileno ] . end_pos = cio_tell ( cio ) + j2k - > pos_correction - 1 ;
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}
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/*
if ( tile - > PPT ) { // BAD PPT !!!
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FILE * PPT_file ;
int i ;
PPT_file = fopen ( " PPT " , " rb " ) ;
fprintf ( stderr , " %c%c%c%c " , 255 , 97 , tile - > len_ppt / 256 , tile - > len_ppt % 256 ) ;
for ( i = 0 ; i < tile - > len_ppt ; i + + ) {
unsigned char elmt ;
fread ( & elmt , 1 , 1 , PPT_file ) ;
fwrite ( & elmt , 1 , 1 , f ) ;
}
fclose ( PPT_file ) ;
unlink ( " PPT " ) ;
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}
*/
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}
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/* destroy the tile encoder */
tcd_free_encode ( tcd ) ;
tcd_destroy ( tcd ) ;
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opj_free ( j2k - > cur_totnum_tp ) ;
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j2k_write_eoc ( j2k ) ;
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if ( cstr_info ) {
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cstr_info - > codestream_size = cio_tell ( cio ) + j2k - > pos_correction ;
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/* UniPG>> */
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/* The following adjustment is done to adjust the codestream size */
/* if SOD is not at 0 in the buffer. Useful in case of JP2, where */
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/* the first bunch of bytes is not in the codestream */
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cstr_info - > codestream_size - = cstr_info - > main_head_start ;
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/* <<UniPG */
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}
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# ifdef USE_JPWL
/*
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preparation of JPWL marker segments
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*/
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if ( cp - > epc_on ) {
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/* encode according to JPWL */
jpwl_encode ( j2k , cio , image ) ;
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}
# endif /* USE_JPWL */
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return OPJ_TRUE ;
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}
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static void j2k_add_mhmarker ( opj_codestream_info_t * cstr_info , unsigned short int type , int pos , int len ) {
if ( ! cstr_info )
return ;
/* expand the list? */
if ( ( cstr_info - > marknum + 1 ) > cstr_info - > maxmarknum ) {
cstr_info - > maxmarknum = 100 + ( int ) ( ( float ) cstr_info - > maxmarknum * 1.0F ) ;
cstr_info - > marker = ( opj_marker_info_t * ) opj_realloc ( cstr_info - > marker , cstr_info - > maxmarknum ) ;
}
/* add the marker */
cstr_info - > marker [ cstr_info - > marknum ] . type = type ;
cstr_info - > marker [ cstr_info - > marknum ] . pos = pos ;
cstr_info - > marker [ cstr_info - > marknum ] . len = len ;
cstr_info - > marknum + + ;
}
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static void j2k_add_mhmarker_v2 ( opj_codestream_index_t * cstr_index , OPJ_UINT32 type , OPJ_OFF_T pos , OPJ_UINT32 len ) {
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if ( ! cstr_index )
return ;
/* expand the list? */
if ( ( cstr_index - > marknum + 1 ) > cstr_index - > maxmarknum ) {
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cstr_index - > maxmarknum = 100 + ( int ) ( ( float ) cstr_index - > maxmarknum * 1.0F ) ;
cstr_index - > marker = ( opj_marker_info_t * ) opj_realloc ( cstr_index - > marker , cstr_index - > maxmarknum * sizeof ( opj_marker_info_t ) ) ;
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}
/* add the marker */
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cstr_index - > marker [ cstr_index - > marknum ] . type = ( OPJ_UINT16 ) type ;
cstr_index - > marker [ cstr_index - > marknum ] . pos = ( OPJ_INT32 ) pos ;
cstr_index - > marker [ cstr_index - > marknum ] . len = ( OPJ_INT32 ) len ;
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cstr_index - > marknum + + ;
}
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static void j2k_add_tlmarker ( int tileno , opj_codestream_info_t * cstr_info , unsigned short int type , int pos , int len ) {
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opj_marker_info_t * marker ;
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if ( ! cstr_info )
return ;
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/* expand the list? */
if ( ( cstr_info - > tile [ tileno ] . marknum + 1 ) > cstr_info - > tile [ tileno ] . maxmarknum ) {
cstr_info - > tile [ tileno ] . maxmarknum = 100 + ( int ) ( ( float ) cstr_info - > tile [ tileno ] . maxmarknum * 1.0F ) ;
cstr_info - > tile [ tileno ] . marker = ( opj_marker_info_t * ) opj_realloc ( cstr_info - > tile [ tileno ] . marker , cstr_info - > maxmarknum ) ;
}
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marker = & ( cstr_info - > tile [ tileno ] . marker [ cstr_info - > tile [ tileno ] . marknum ] ) ;
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/* add the marker */
marker - > type = type ;
marker - > pos = pos ;
marker - > len = len ;
cstr_info - > tile [ tileno ] . marknum + + ;
}
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static void j2k_add_tlmarker_v2 ( OPJ_UINT32 tileno , opj_codestream_index_t * cstr_index , OPJ_UINT32 type , OPJ_OFF_T pos , OPJ_UINT32 len )
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{
if ( ! cstr_index )
return ;
if ( ! cstr_index - > tile_index )
/* expand the list? */
if ( ( cstr_index - > tile_index [ tileno ] . marknum + 1 ) > cstr_index - > tile_index [ tileno ] . maxmarknum ) {
cstr_index - > tile_index [ tileno ] . maxmarknum = 100 + ( int ) ( ( float ) cstr_index - > tile_index [ tileno ] . maxmarknum * 1.0F ) ;
cstr_index - > tile_index [ tileno ] . marker =
( opj_marker_info_t * ) opj_realloc ( cstr_index - > tile_index [ tileno ] . marker ,
cstr_index - > tile_index [ tileno ] . maxmarknum * sizeof ( opj_marker_info_t ) ) ;
}
/* add the marker */
cstr_index - > tile_index [ tileno ] . marker [ cstr_index - > tile_index [ tileno ] . marknum ] . type = ( OPJ_UINT16 ) type ;
cstr_index - > tile_index [ tileno ] . marker [ cstr_index - > tile_index [ tileno ] . marknum ] . pos = ( OPJ_INT32 ) pos ;
cstr_index - > tile_index [ tileno ] . marker [ cstr_index - > tile_index [ tileno ] . marknum ] . len = ( OPJ_INT32 ) len ;
cstr_index - > tile_index [ tileno ] . marknum + + ;
if ( type = = J2K_MS_SOT ) {
OPJ_UINT32 l_current_tile_part = cstr_index - > tile_index [ tileno ] . current_tpsno ;
if ( cstr_index - > tile_index [ tileno ] . tp_index )
cstr_index - > tile_index [ tileno ] . tp_index [ l_current_tile_part ] . start_pos = pos ;
}
}
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/*
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
*/
/**
* Ends the decompression procedures and possibiliy add data to be read after the
* codestream .
*/
opj_bool j2k_end_decompress (
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opj_j2k_v2_t * p_j2k ,
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opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager )
{
return OPJ_TRUE ;
}
/**
* Reads a jpeg2000 codestream header structure .
*
* @ param p_stream the stream to read data from .
* @ param p_j2k the jpeg2000 codec .
* @ param p_manager the user event manager .
*
* @ return true if the box is valid .
*/
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opj_bool j2k_read_header ( struct opj_stream_private * p_stream ,
opj_j2k_v2_t * p_j2k ,
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opj_image_t * * p_image ,
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struct opj_event_mgr * p_manager )
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{
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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/* create an empty image header */
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p_j2k - > m_private_image = opj_image_create0 ( ) ;
if ( ! p_j2k - > m_private_image ) {
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return OPJ_FALSE ;
}
/* customization of the validation */
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j2k_setup_decoding_validation ( p_j2k ) ;
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/* validation of the parameters codec */
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if ( ! j2k_exec ( p_j2k , p_j2k - > m_validation_list , p_stream , p_manager ) ) {
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opj_image_destroy ( p_j2k - > m_private_image ) ;
p_j2k - > m_private_image = NULL ;
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return OPJ_FALSE ;
}
/* customization of the encoding */
j2k_setup_header_reading ( p_j2k ) ;
/* read header */
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if ( ! j2k_exec ( p_j2k , p_j2k - > m_procedure_list , p_stream , p_manager ) ) {
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opj_image_destroy ( p_j2k - > m_private_image ) ;
p_j2k - > m_private_image = NULL ;
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return OPJ_FALSE ;
}
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* p_image = opj_image_create0 ( ) ;
if ( ! ( * p_image ) ) {
return OPJ_FALSE ;
}
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/* Copy codestream image information to the output image */
opj_copy_image_header ( p_j2k - > m_private_image , * p_image ) ;
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return OPJ_TRUE ;
}
/**
* Sets up the procedures to do on reading header . Developpers wanting to extend the library can add their own reading procedures .
*/
void j2k_setup_header_reading ( opj_j2k_v2_t * p_j2k )
{
// preconditions
assert ( p_j2k ! = 00 ) ;
opj_procedure_list_add_procedure ( p_j2k - > m_procedure_list , ( void * ) j2k_read_header_procedure ) ;
/* DEVELOPER CORNER, add your custom procedures */
opj_procedure_list_add_procedure ( p_j2k - > m_procedure_list , ( void * ) j2k_copy_default_tcp_and_create_tcd ) ;
}
/**
* Sets up the validation , i . e . adds the procedures to lauch to make sure the codec parameters
* are valid . Developpers wanting to extend the library can add their own validation procedures .
*/
void j2k_setup_decoding_validation ( opj_j2k_v2_t * p_j2k )
{
// preconditions
assert ( p_j2k ! = 00 ) ;
opj_procedure_list_add_procedure ( p_j2k - > m_validation_list , ( void * ) j2k_build_decoder ) ;
opj_procedure_list_add_procedure ( p_j2k - > m_validation_list , ( void * ) j2k_decoding_validation ) ;
/* DEVELOPER CORNER, add your custom validation procedure */
}
/**
* Builds the cp decoder parameters to use to decode tile .
*/
opj_bool j2k_build_decoder (
opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager
)
{
// add here initialization of cp
// copy paste of setup_decoder
return OPJ_TRUE ;
}
/**
* The default decoding validation procedure without any extension .
*
* @ param p_j2k the jpeg2000 codec to validate .
* @ param p_stream the input stream to validate .
* @ param p_manager the user event manager .
*
* @ return true if the parameters are correct .
*/
opj_bool j2k_decoding_validation (
opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager
)
{
opj_bool l_is_valid = OPJ_TRUE ;
// preconditions
assert ( p_j2k ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
/* STATE checking */
/* make sure the state is at 0 */
# ifdef TODO_MSD
l_is_valid & = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_DEC_STATE_NONE ) ;
# endif
l_is_valid & = ( p_j2k - > m_specific_param . m_decoder . m_state = = 0x0000 ) ;
/* POINTER validation */
/* make sure a p_j2k codec is present */
/* make sure a procedure list is present */
l_is_valid & = ( p_j2k - > m_procedure_list ! = 00 ) ;
/* make sure a validation list is present */
l_is_valid & = ( p_j2k - > m_validation_list ! = 00 ) ;
/* PARAMETER VALIDATION */
return l_is_valid ;
}
opj_bool j2k_read_header_procedure ( opj_j2k_v2_t * p_j2k ,
struct opj_stream_private * p_stream ,
struct opj_event_mgr * p_manager )
{
OPJ_UINT32 l_current_marker ;
OPJ_UINT32 l_marker_size ;
const opj_dec_memory_marker_handler_t * l_marker_handler = 00 ;
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/* preconditions */
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assert ( p_stream ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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/* We enter in the main header */
p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_MHSOC ;
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/* Try to read the SOC marker, the codestream must begin with SOC marker */
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if ( ! j2k_read_soc_v2 ( p_j2k , p_stream , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Expected a SOC marker \n " ) ;
return OPJ_FALSE ;
}
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/* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* Read 2 bytes as the new marker ID */
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opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_current_marker , 2 ) ;
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/* Try to read until the SOT is detected */
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while ( l_current_marker ! = J2K_MS_SOT ) {
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/* Check if the current marker ID is valid */
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if ( l_current_marker < 0xff00 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " We expected read a marker ID (0xff--) instead of %.8x \n " , l_current_marker ) ;
return OPJ_FALSE ;
}
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/* Get the marker handler from the marker ID */
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l_marker_handler = j2k_get_marker_handler ( l_current_marker ) ;
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/* Manage case where marker is unknown */
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if ( l_marker_handler - > id = = J2K_MS_UNK ) {
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if ( ! j2k_read_unk_v2 ( p_j2k , p_stream , & l_current_marker , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Unknow marker have been detected and generated error. \n " ) ;
return OPJ_FALSE ;
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}
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if ( l_current_marker = = J2K_MS_SOT )
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break ; /* SOT marker is detected main header is completely read */
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else /* Get the marker handler from the marker ID */
l_marker_handler = j2k_get_marker_handler ( l_current_marker ) ;
}
/* Check if the marker is known and if it is the right place to find it */
if ( ! ( p_j2k - > m_specific_param . m_decoder . m_state & l_marker_handler - > states ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Marker is not compliant with its position \n " ) ;
return OPJ_FALSE ;
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}
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/* Try to read 2 bytes (the marker size) from stream and copy them into the buffer */
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* read 2 bytes as the marker size */
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opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_marker_size , 2 ) ;
l_marker_size - = 2 ; // Subtract the size of the marker ID already read
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/* Check if the marker size is compatible with the header data size */
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if ( l_marker_size > p_j2k - > m_specific_param . m_decoder . m_header_data_size ) {
p_j2k - > m_specific_param . m_decoder . m_header_data = ( OPJ_BYTE * )
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opj_realloc ( p_j2k - > m_specific_param . m_decoder . m_header_data , l_marker_size ) ;
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if ( p_j2k - > m_specific_param . m_decoder . m_header_data = = 00 ) {
return OPJ_FALSE ;
}
p_j2k - > m_specific_param . m_decoder . m_header_data_size = l_marker_size ;
}
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/* Try to read the rest of the marker segment from stream and copy them into the buffer */
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , l_marker_size , p_manager ) ! = l_marker_size ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* Read the marker segment with the correct marker handler */
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if ( ! ( * ( l_marker_handler - > handler ) ) ( p_j2k , p_j2k - > m_specific_param . m_decoder . m_header_data , l_marker_size , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Marker handler function failed to read the marker segment \n " ) ;
return OPJ_FALSE ;
}
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/* Add the marker to the codestream index*/
j2k_add_mhmarker_v2 ( p_j2k - > cstr_index ,
l_marker_handler - > id ,
( OPJ_UINT32 ) opj_stream_tell ( p_stream ) - l_marker_size - 4 ,
l_marker_size + 4 ) ;
/* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* read 2 bytes as the new marker ID */
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opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_current_marker , 2 ) ;
}
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opj_event_msg_v2 ( p_manager , EVT_INFO , " Main header has been correctly decoded. \n " ) ;
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/* Position of the last element if the main header */
p_j2k - > cstr_index - > main_head_end = ( OPJ_UINT32 ) opj_stream_tell ( p_stream ) - 2 ;
/* Next step: read a tile-part header */
p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_TPHSOT ;
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return OPJ_TRUE ;
}
/**
* Excutes the given procedures on the given codec .
*
* @ param p_procedure_list the list of procedures to execute
* @ param p_j2k the jpeg2000 codec to execute the procedures on .
* @ param p_stream the stream to execute the procedures on .
* @ param p_manager the user manager .
*
* @ return true if all the procedures were successfully executed .
*/
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opj_bool j2k_exec ( opj_j2k_v2_t * p_j2k ,
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opj_procedure_list_t * p_procedure_list ,
opj_stream_private_t * p_stream ,
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opj_event_mgr_t * p_manager )
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{
opj_bool ( * * l_procedure ) ( opj_j2k_v2_t * , opj_stream_private_t * , opj_event_mgr_t * ) = 00 ;
opj_bool l_result = OPJ_TRUE ;
OPJ_UINT32 l_nb_proc , i ;
// preconditions
assert ( p_procedure_list ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
l_nb_proc = opj_procedure_list_get_nb_procedures ( p_procedure_list ) ;
l_procedure = ( opj_bool ( * * ) ( opj_j2k_v2_t * , opj_stream_private_t * , opj_event_mgr_t * ) ) opj_procedure_list_get_first_procedure ( p_procedure_list ) ;
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for ( i = 0 ; i < l_nb_proc ; + + i ) {
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l_result = l_result & & ( ( * l_procedure ) ( p_j2k , p_stream , p_manager ) ) ;
+ + l_procedure ;
}
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// and clear the procedure list at the end.
opj_procedure_list_clear ( p_procedure_list ) ;
return l_result ;
}
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/* FIXME DOC*/
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opj_bool j2k_copy_default_tcp_and_create_tcd
(
opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager
)
{
opj_tcp_v2_t * l_tcp = 00 ;
opj_tcp_v2_t * l_default_tcp = 00 ;
OPJ_UINT32 l_nb_tiles ;
OPJ_UINT32 i , j ;
opj_tccp_t * l_current_tccp = 00 ;
OPJ_UINT32 l_tccp_size ;
OPJ_UINT32 l_mct_size ;
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opj_image_t * l_image ;
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OPJ_UINT32 l_mcc_records_size , l_mct_records_size ;
opj_mct_data_t * l_src_mct_rec , * l_dest_mct_rec ;
opj_simple_mcc_decorrelation_data_t * l_src_mcc_rec , * l_dest_mcc_rec ;
OPJ_UINT32 l_offset ;
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
assert ( p_stream ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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l_image = p_j2k - > m_private_image ;
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l_nb_tiles = p_j2k - > m_cp . th * p_j2k - > m_cp . tw ;
l_tcp = p_j2k - > m_cp . tcps ;
l_tccp_size = l_image - > numcomps * sizeof ( opj_tccp_t ) ;
l_default_tcp = p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
l_mct_size = l_image - > numcomps * l_image - > numcomps * sizeof ( OPJ_FLOAT32 ) ;
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/* For each tile */
for ( i = 0 ; i < l_nb_tiles ; + + i ) {
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/* keep the tile-compo coding parameters pointer of the current tile coding parameters*/
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l_current_tccp = l_tcp - > tccps ;
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/*Copy default coding parameters into the current tile coding parameters*/
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memcpy ( l_tcp , l_default_tcp , sizeof ( opj_tcp_v2_t ) ) ;
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/* Initialize some values of the current tile coding parameters*/
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l_tcp - > ppt = 0 ;
l_tcp - > ppt_data = 00 ;
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/* Reconnect the tile-compo coding parameters pointer to the current tile coding parameters*/
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l_tcp - > tccps = l_current_tccp ;
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/* Get the mct_decoding_matrix of the dflt_tile_cp and copy them into the current tile cp*/
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if ( l_default_tcp - > m_mct_decoding_matrix ) {
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l_tcp - > m_mct_decoding_matrix = ( OPJ_FLOAT32 * ) opj_malloc ( l_mct_size ) ;
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if ( ! l_tcp - > m_mct_decoding_matrix ) {
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return OPJ_FALSE ;
}
memcpy ( l_tcp - > m_mct_decoding_matrix , l_default_tcp - > m_mct_decoding_matrix , l_mct_size ) ;
}
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/* Get the mct_record of the dflt_tile_cp and copy them into the current tile cp*/
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l_mct_records_size = l_default_tcp - > m_nb_max_mct_records * sizeof ( opj_mct_data_t ) ;
l_tcp - > m_mct_records = ( opj_mct_data_t * ) opj_malloc ( l_mct_records_size ) ;
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if ( ! l_tcp - > m_mct_records ) {
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return OPJ_FALSE ;
}
memcpy ( l_tcp - > m_mct_records , l_default_tcp - > m_mct_records , l_mct_records_size ) ;
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/* Copy the mct record data from dflt_tile_cp to the current tile*/
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l_src_mct_rec = l_default_tcp - > m_mct_records ;
l_dest_mct_rec = l_tcp - > m_mct_records ;
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for ( j = 0 ; j < l_default_tcp - > m_nb_mct_records ; + + j ) {
if ( l_src_mct_rec - > m_data ) {
l_dest_mct_rec - > m_data = ( OPJ_BYTE * ) opj_malloc ( l_src_mct_rec - > m_data_size ) ;
if ( ! l_dest_mct_rec - > m_data ) {
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return OPJ_FALSE ;
}
memcpy ( l_dest_mct_rec - > m_data , l_src_mct_rec - > m_data , l_src_mct_rec - > m_data_size ) ;
}
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+ + l_src_mct_rec ;
+ + l_dest_mct_rec ;
}
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/* Get the mcc_record of the dflt_tile_cp and copy them into the current tile cp*/
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l_mcc_records_size = l_default_tcp - > m_nb_max_mcc_records * sizeof ( opj_simple_mcc_decorrelation_data_t ) ;
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l_tcp - > m_mcc_records = ( opj_simple_mcc_decorrelation_data_t * ) opj_malloc ( l_mcc_records_size ) ;
if ( ! l_tcp - > m_mcc_records ) {
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return OPJ_FALSE ;
}
memcpy ( l_tcp - > m_mcc_records , l_default_tcp - > m_mcc_records , l_mcc_records_size ) ;
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/* Copy the mcc record data from dflt_tile_cp to the current tile*/
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l_src_mcc_rec = l_default_tcp - > m_mcc_records ;
l_dest_mcc_rec = l_tcp - > m_mcc_records ;
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for ( j = 0 ; j < l_default_tcp - > m_nb_max_mcc_records ; + + j ) {
if ( l_src_mcc_rec - > m_decorrelation_array ) {
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l_offset = l_src_mcc_rec - > m_decorrelation_array - l_default_tcp - > m_mct_records ;
l_dest_mcc_rec - > m_decorrelation_array = l_tcp - > m_mct_records + l_offset ;
}
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if ( l_src_mcc_rec - > m_offset_array ) {
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l_offset = l_src_mcc_rec - > m_offset_array - l_default_tcp - > m_mct_records ;
l_dest_mcc_rec - > m_offset_array = l_tcp - > m_mct_records + l_offset ;
}
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+ + l_src_mcc_rec ;
+ + l_dest_mcc_rec ;
}
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/* Copy all the dflt_tile_compo_cp to the current tile cp */
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memcpy ( l_current_tccp , l_default_tcp - > tccps , l_tccp_size ) ;
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/* Move to next tile cp*/
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+ + l_tcp ;
}
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/* Create the current tile decoder*/
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p_j2k - > m_tcd = ( opj_tcd_v2_t * ) tcd_create_v2 ( OPJ_TRUE ) ; // FIXME why a cast ?
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if ( ! p_j2k - > m_tcd ) {
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return OPJ_FALSE ;
}
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if ( ! tcd_init_v2 ( p_j2k - > m_tcd , l_image , & ( p_j2k - > m_cp ) ) ) {
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tcd_destroy_v2 ( p_j2k - > m_tcd ) ;
p_j2k - > m_tcd = 00 ;
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Cannot decode tile, memory error \n " ) ;
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return OPJ_FALSE ;
}
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return OPJ_TRUE ;
}
/**
* Reads the lookup table containing all the marker , status and action , and returns the handler associated
* with the marker value .
* @ param p_id Marker value to look up
*
* @ return the handler associated with the id .
*/
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const opj_dec_memory_marker_handler_t * j2k_get_marker_handler ( OPJ_UINT32 p_id )
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{
const opj_dec_memory_marker_handler_t * e ;
for ( e = j2k_memory_marker_handler_tab ; e - > id ! = 0 ; + + e ) {
if ( e - > id = = p_id ) {
break ; // we find a handler corresponding to the marker ID
}
}
return e ;
}
/**
* Destroys a jpeg2000 codec .
*
* @ param p_j2k the jpeg20000 structure to destroy .
*/
void j2k_destroy ( opj_j2k_v2_t * p_j2k )
{
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if ( p_j2k = = 00 ) {
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return ;
}
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if ( p_j2k - > m_is_decoder ) {
if ( p_j2k - > m_specific_param . m_decoder . m_default_tcp ! = 00 ) {
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j2k_tcp_destroy ( p_j2k - > m_specific_param . m_decoder . m_default_tcp ) ;
opj_free ( p_j2k - > m_specific_param . m_decoder . m_default_tcp ) ;
p_j2k - > m_specific_param . m_decoder . m_default_tcp = 00 ;
}
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if ( p_j2k - > m_specific_param . m_decoder . m_header_data ! = 00 ) {
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opj_free ( p_j2k - > m_specific_param . m_decoder . m_header_data ) ;
p_j2k - > m_specific_param . m_decoder . m_header_data = 00 ;
p_j2k - > m_specific_param . m_decoder . m_header_data_size = 0 ;
}
}
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else {
if ( p_j2k - > m_specific_param . m_encoder . m_encoded_tile_data ) {
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opj_free ( p_j2k - > m_specific_param . m_encoder . m_encoded_tile_data ) ;
p_j2k - > m_specific_param . m_encoder . m_encoded_tile_data = 00 ;
}
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if ( p_j2k - > m_specific_param . m_encoder . m_tlm_sot_offsets_buffer ) {
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opj_free ( p_j2k - > m_specific_param . m_encoder . m_tlm_sot_offsets_buffer ) ;
p_j2k - > m_specific_param . m_encoder . m_tlm_sot_offsets_buffer = 00 ;
p_j2k - > m_specific_param . m_encoder . m_tlm_sot_offsets_current = 00 ;
}
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if ( p_j2k - > m_specific_param . m_encoder . m_header_tile_data ) {
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opj_free ( p_j2k - > m_specific_param . m_encoder . m_header_tile_data ) ;
p_j2k - > m_specific_param . m_encoder . m_header_tile_data = 00 ;
p_j2k - > m_specific_param . m_encoder . m_header_tile_data_size = 0 ;
}
}
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tcd_destroy_v2 ( p_j2k - > m_tcd ) ;
j2k_cp_destroy ( & ( p_j2k - > m_cp ) ) ;
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memset ( & ( p_j2k - > m_cp ) , 0 , sizeof ( opj_cp_v2_t ) ) ;
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opj_procedure_list_destroy ( p_j2k - > m_procedure_list ) ;
p_j2k - > m_procedure_list = 00 ;
opj_procedure_list_destroy ( p_j2k - > m_validation_list ) ;
p_j2k - > m_procedure_list = 00 ;
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j2k_destroy_cstr_index ( p_j2k - > cstr_index ) ;
p_j2k - > cstr_index = NULL ;
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opj_image_destroy ( p_j2k - > m_private_image ) ;
p_j2k - > m_private_image = NULL ;
opj_image_destroy ( p_j2k - > m_output_image ) ;
p_j2k - > m_output_image = NULL ;
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opj_free ( p_j2k ) ;
}
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void j2k_destroy_cstr_index ( opj_codestream_index_t * p_cstr_ind )
{
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if ( p_cstr_ind ) {
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if ( p_cstr_ind - > marker ) {
opj_free ( p_cstr_ind - > marker ) ;
p_cstr_ind - > marker = NULL ;
}
if ( p_cstr_ind - > tile_index ) {
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OPJ_UINT32 it_tile = 0 ;
for ( it_tile = 0 ; it_tile < p_cstr_ind - > nb_of_tiles ; it_tile + + ) {
if ( p_cstr_ind - > tile_index [ it_tile ] . packet_index ) {
opj_free ( p_cstr_ind - > tile_index [ it_tile ] . packet_index ) ;
p_cstr_ind - > tile_index [ it_tile ] . packet_index = NULL ;
}
if ( p_cstr_ind - > tile_index [ it_tile ] . tp_index ) {
opj_free ( p_cstr_ind - > tile_index [ it_tile ] . tp_index ) ;
p_cstr_ind - > tile_index [ it_tile ] . tp_index = NULL ;
}
if ( p_cstr_ind - > tile_index [ it_tile ] . marker ) {
opj_free ( p_cstr_ind - > tile_index [ it_tile ] . marker ) ;
p_cstr_ind - > tile_index [ it_tile ] . marker = NULL ;
}
}
opj_free ( p_cstr_ind - > tile_index ) ;
p_cstr_ind - > tile_index = NULL ;
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}
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opj_free ( p_cstr_ind ) ;
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}
}
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/**
* Destroys a tile coding parameter structure .
*
* @ param p_tcp the tile coding parameter to destroy .
*/
void j2k_tcp_destroy ( opj_tcp_v2_t * p_tcp )
{
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if ( p_tcp = = 00 ) {
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return ;
}
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if ( p_tcp - > ppt_buffer ! = 00 ) {
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opj_free ( p_tcp - > ppt_buffer ) ;
p_tcp - > ppt_buffer = 00 ;
}
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if ( p_tcp - > tccps ! = 00 ) {
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opj_free ( p_tcp - > tccps ) ;
p_tcp - > tccps = 00 ;
}
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if ( p_tcp - > m_mct_coding_matrix ! = 00 ) {
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opj_free ( p_tcp - > m_mct_coding_matrix ) ;
p_tcp - > m_mct_coding_matrix = 00 ;
}
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if ( p_tcp - > m_mct_decoding_matrix ! = 00 ) {
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opj_free ( p_tcp - > m_mct_decoding_matrix ) ;
p_tcp - > m_mct_decoding_matrix = 00 ;
}
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if ( p_tcp - > m_mcc_records ) {
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opj_free ( p_tcp - > m_mcc_records ) ;
p_tcp - > m_mcc_records = 00 ;
p_tcp - > m_nb_max_mcc_records = 0 ;
p_tcp - > m_nb_mcc_records = 0 ;
}
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if ( p_tcp - > m_mct_records ) {
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opj_mct_data_t * l_mct_data = p_tcp - > m_mct_records ;
OPJ_UINT32 i ;
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for ( i = 0 ; i < p_tcp - > m_nb_mct_records ; + + i ) {
if ( l_mct_data - > m_data ) {
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opj_free ( l_mct_data - > m_data ) ;
l_mct_data - > m_data = 00 ;
}
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+ + l_mct_data ;
}
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opj_free ( p_tcp - > m_mct_records ) ;
p_tcp - > m_mct_records = 00 ;
}
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if ( p_tcp - > mct_norms ! = 00 ) {
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opj_free ( p_tcp - > mct_norms ) ;
p_tcp - > mct_norms = 00 ;
}
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j2k_tcp_data_destroy ( p_tcp ) ;
}
/**
* Destroys the data inside a tile coding parameter structure .
*
* @ param p_tcp the tile coding parameter which contain data to destroy .
*/
void j2k_tcp_data_destroy ( opj_tcp_v2_t * p_tcp )
{
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if ( p_tcp - > m_data ) {
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opj_free ( p_tcp - > m_data ) ;
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p_tcp - > m_data = NULL ;
p_tcp - > m_data_size = 0 ;
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}
}
/**
* Destroys a coding parameter structure .
*
* @ param p_cp the coding parameter to destroy .
*/
void j2k_cp_destroy ( opj_cp_v2_t * p_cp )
{
OPJ_UINT32 l_nb_tiles ;
opj_tcp_v2_t * l_current_tile = 00 ;
OPJ_UINT32 i ;
if
( p_cp = = 00 )
{
return ;
}
if
( p_cp - > tcps ! = 00 )
{
l_current_tile = p_cp - > tcps ;
l_nb_tiles = p_cp - > th * p_cp - > tw ;
for
( i = 0 ; i < l_nb_tiles ; + + i )
{
j2k_tcp_destroy ( l_current_tile ) ;
+ + l_current_tile ;
}
opj_free ( p_cp - > tcps ) ;
p_cp - > tcps = 00 ;
}
if
( p_cp - > ppm_buffer ! = 00 )
{
opj_free ( p_cp - > ppm_buffer ) ;
p_cp - > ppm_buffer = 00 ;
}
if
( p_cp - > comment ! = 00 )
{
opj_free ( p_cp - > comment ) ;
p_cp - > comment = 00 ;
}
if
( ! p_cp - > m_is_decoder )
{
if
( p_cp - > m_specific_param . m_enc . m_matrice )
{
opj_free ( p_cp - > m_specific_param . m_enc . m_matrice ) ;
p_cp - > m_specific_param . m_enc . m_matrice = 00 ;
}
}
}
/**
* Reads a tile header .
* @ param p_j2k the jpeg2000 codec .
* @ param p_stream the stream to write data to .
* @ param p_manager the user event manager .
*/
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opj_bool j2k_read_tile_header ( opj_j2k_v2_t * p_j2k ,
OPJ_UINT32 * p_tile_index ,
OPJ_UINT32 * p_data_size ,
OPJ_INT32 * p_tile_x0 , OPJ_INT32 * p_tile_y0 ,
OPJ_INT32 * p_tile_x1 , OPJ_INT32 * p_tile_y1 ,
OPJ_UINT32 * p_nb_comps ,
opj_bool * p_go_on ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager )
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{
OPJ_UINT32 l_current_marker = J2K_MS_SOT ;
OPJ_UINT32 l_marker_size ;
const opj_dec_memory_marker_handler_t * l_marker_handler = 00 ;
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opj_tcp_v2_t * l_tcp = NULL ;
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OPJ_UINT32 l_nb_tiles ;
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/* preconditions */
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assert ( p_stream ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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/* Reach the End Of Codestream ?*/
if ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_EOC ) {
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l_current_marker = J2K_MS_EOC ;
}
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/* We need to encounter a SOT marker (a new tile-part header) */
else if ( p_j2k - > m_specific_param . m_decoder . m_state ! = J2K_STATE_TPHSOT ) {
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return OPJ_FALSE ;
}
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/* Read into the codestream until reach the EOC or ! can_decode ??? FIXME */
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while ( ( ! p_j2k - > m_specific_param . m_decoder . m_can_decode ) & & ( l_current_marker ! = J2K_MS_EOC ) ) {
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/* Try to read until the Start Of Data is detected */
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while ( l_current_marker ! = J2K_MS_SOD ) {
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/* Try to read 2 bytes (the marker size) from stream and copy them into the buffer */
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* Read 2 bytes from the buffer as the marker size */
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opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_marker_size , 2 ) ;
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/* Why this condition? FIXME */
if ( p_j2k - > m_specific_param . m_decoder . m_state & J2K_STATE_TPH ) {
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p_j2k - > m_specific_param . m_decoder . m_sot_length - = ( l_marker_size + 2 ) ;
}
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l_marker_size - = 2 ; /* Subtract the size of the marker ID already read */
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/* Get the marker handler from the marker ID */
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l_marker_handler = j2k_get_marker_handler ( l_current_marker ) ;
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/* Check if the marker is known and if it is the right place to find it */
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if ( ! ( p_j2k - > m_specific_param . m_decoder . m_state & l_marker_handler - > states ) ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Marker is not compliant with its position \n " ) ;
return OPJ_FALSE ;
}
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/* FIXME manage case of unknown marker as in the main header ? */
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/* Check if the marker size is compatible with the header data size */
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if ( l_marker_size > p_j2k - > m_specific_param . m_decoder . m_header_data_size ) {
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p_j2k - > m_specific_param . m_decoder . m_header_data = ( OPJ_BYTE * )
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opj_realloc ( p_j2k - > m_specific_param . m_decoder . m_header_data , l_marker_size ) ;
if ( p_j2k - > m_specific_param . m_decoder . m_header_data = = 00 ) {
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return OPJ_FALSE ;
}
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p_j2k - > m_specific_param . m_decoder . m_header_data_size = l_marker_size ;
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}
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/* Try to read the rest of the marker segment from stream and copy them into the buffer */
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , l_marker_size , p_manager ) ! = l_marker_size ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* Read the marker segment with the correct marker handler */
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if ( ! ( * ( l_marker_handler - > handler ) ) ( p_j2k , p_j2k - > m_specific_param . m_decoder . m_header_data , l_marker_size , p_manager ) ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Fail to read the current marker segment (%#x) \n " , l_current_marker ) ;
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return OPJ_FALSE ;
}
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/* Add the marker to the codestream index*/
j2k_add_tlmarker_v2 ( p_j2k - > m_current_tile_number ,
p_j2k - > cstr_index ,
l_marker_handler - > id ,
( OPJ_UINT32 ) opj_stream_tell ( p_stream ) - l_marker_size - 4 ,
l_marker_size + 4 ) ;
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/* Keep the position of the last SOT marker read */
if ( l_marker_handler - > id = = J2K_MS_SOT ) {
OPJ_UINT32 sot_pos = ( OPJ_UINT32 ) opj_stream_tell ( p_stream ) - l_marker_size - 4 ;
if ( sot_pos > p_j2k - > m_specific_param . m_decoder . m_last_sot_read_pos )
{
p_j2k - > m_specific_param . m_decoder . m_last_sot_read_pos = sot_pos ;
}
}
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if ( p_j2k - > m_specific_param . m_decoder . m_skip_data ) {
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/* Skip the rest of the tile part header*/
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if ( opj_stream_skip ( p_stream , p_j2k - > m_specific_param . m_decoder . m_sot_length , p_manager ) ! = p_j2k - > m_specific_param . m_decoder . m_sot_length ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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l_current_marker = J2K_MS_SOD ; /* Normally we reached a SOD */
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}
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else {
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/* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer*/
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* Read 2 bytes from the buffer as the new marker ID */
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opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_current_marker , 2 ) ;
}
}
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/* If we didn't skip data before, we need to read the SOD marker*/
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if ( ! p_j2k - > m_specific_param . m_decoder . m_skip_data ) {
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/* Try to read the SOD marker and skip data ? FIXME */
if ( ! j2k_read_sod_v2 ( p_j2k , p_stream , p_manager ) ) {
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return OPJ_FALSE ;
}
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if ( ! p_j2k - > m_specific_param . m_decoder . m_can_decode ) {
/* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */
if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
/* Read 2 bytes from buffer as the new marker ID */
opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_current_marker , 2 ) ;
}
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}
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else {
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/* Indicate we will try to read a new tile-part header*/
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p_j2k - > m_specific_param . m_decoder . m_skip_data = 0 ;
p_j2k - > m_specific_param . m_decoder . m_can_decode = 0 ;
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p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_TPHSOT ;
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/* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */
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if ( opj_stream_read_data ( p_stream , p_j2k - > m_specific_param . m_decoder . m_header_data , 2 , p_manager ) ! = 2 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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/* Read 2 bytes from buffer as the new marker ID */
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opj_read_bytes ( p_j2k - > m_specific_param . m_decoder . m_header_data , & l_current_marker , 2 ) ;
}
}
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/* Current marker is the EOC marker ?*/
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if ( l_current_marker = = J2K_MS_EOC ) {
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if ( p_j2k - > m_specific_param . m_decoder . m_state ! = J2K_STATE_EOC ) {
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p_j2k - > m_current_tile_number = 0 ;
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p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_EOC ;
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}
}
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/* FIXME DOC ???*/
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if ( ! p_j2k - > m_specific_param . m_decoder . m_can_decode ) {
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l_tcp = p_j2k - > m_cp . tcps + p_j2k - > m_current_tile_number ;
l_nb_tiles = p_j2k - > m_cp . th * p_j2k - > m_cp . tw ;
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while ( ( p_j2k - > m_current_tile_number < l_nb_tiles ) & & ( l_tcp - > m_data = = 00 ) ) {
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+ + p_j2k - > m_current_tile_number ;
+ + l_tcp ;
}
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if ( p_j2k - > m_current_tile_number = = l_nb_tiles ) {
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* p_go_on = OPJ_FALSE ;
return OPJ_TRUE ;
}
}
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/*FIXME ???*/
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if ( ! tcd_init_decode_tile ( p_j2k - > m_tcd , p_j2k - > m_current_tile_number ) ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Cannot decode tile, memory error \n " ) ;
return OPJ_FALSE ;
}
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opj_event_msg_v2 ( p_manager , EVT_INFO , " Header of tile %d / %d has been read. \n " ,
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p_j2k - > m_current_tile_number , ( p_j2k - > m_cp . th * p_j2k - > m_cp . tw ) - 1 ) ;
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* p_tile_index = p_j2k - > m_current_tile_number ;
* p_go_on = OPJ_TRUE ;
* p_data_size = tcd_get_decoded_tile_size ( p_j2k - > m_tcd ) ;
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* p_tile_x0 = p_j2k - > m_tcd - > tcd_image - > tiles - > x0 ;
* p_tile_y0 = p_j2k - > m_tcd - > tcd_image - > tiles - > y0 ;
* p_tile_x1 = p_j2k - > m_tcd - > tcd_image - > tiles - > x1 ;
* p_tile_y1 = p_j2k - > m_tcd - > tcd_image - > tiles - > y1 ;
* p_nb_comps = p_j2k - > m_tcd - > tcd_image - > tiles - > numcomps ;
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p_j2k - > m_specific_param . m_decoder . m_state | = 0x0080 ; // FIXME J2K_DEC_STATE_DATA;
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return OPJ_TRUE ;
}
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opj_bool j2k_decode_tile ( opj_j2k_v2_t * p_j2k ,
OPJ_UINT32 p_tile_index ,
OPJ_BYTE * p_data ,
OPJ_UINT32 p_data_size ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager )
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{
OPJ_UINT32 l_current_marker ;
OPJ_BYTE l_data [ 2 ] ;
opj_tcp_v2_t * l_tcp ;
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/* preconditions */
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assert ( p_stream ! = 00 ) ;
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
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if ( ! ( p_j2k - > m_specific_param . m_decoder . m_state & 0x0080 /*FIXME J2K_DEC_STATE_DATA*/ )
| | ( p_tile_index ! = p_j2k - > m_current_tile_number ) ) {
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return OPJ_FALSE ;
}
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l_tcp = & ( p_j2k - > m_cp . tcps [ p_tile_index ] ) ;
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if ( ! l_tcp - > m_data ) {
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j2k_tcp_destroy ( l_tcp ) ;
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return OPJ_FALSE ;
}
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if ( ! tcd_decode_tile_v2 ( p_j2k - > m_tcd ,
l_tcp - > m_data ,
l_tcp - > m_data_size ,
p_tile_index ,
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p_j2k - > cstr_index ) ) {
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j2k_tcp_destroy ( l_tcp ) ;
p_j2k - > m_specific_param . m_decoder . m_state | = 0x8000 ; //FIXME J2K_DEC_STATE_ERR;
return OPJ_FALSE ;
}
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if ( ! tcd_update_tile_data ( p_j2k - > m_tcd , p_data , p_data_size ) ) {
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return OPJ_FALSE ;
}
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/* To avoid to destroy the tcp which can be useful when we try to decode a tile decoded before (cf j2k_random_tile_access)
* we destroy just the data which will be re - read in read_tile_header */
/*j2k_tcp_destroy(l_tcp);
p_j2k - > m_tcd - > tcp = 0 ; */
j2k_tcp_data_destroy ( l_tcp ) ;
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p_j2k - > m_specific_param . m_decoder . m_can_decode = 0 ;
p_j2k - > m_specific_param . m_decoder . m_state & = ( ~ ( 0x0080 ) ) ; // FIXME J2K_DEC_STATE_DATA);
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if ( p_j2k - > m_specific_param . m_decoder . m_state ! = 0x0100 ) { //FIXME J2K_DEC_STATE_EOC)
if ( opj_stream_read_data ( p_stream , l_data , 2 , p_manager ) ! = 2 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short \n " ) ;
return OPJ_FALSE ;
}
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opj_read_bytes ( l_data , & l_current_marker , 2 ) ;
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if ( l_current_marker = = J2K_MS_EOC ) {
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p_j2k - > m_current_tile_number = 0 ;
p_j2k - > m_specific_param . m_decoder . m_state = 0x0100 ; //FIXME J2K_DEC_STATE_EOC;
}
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else if ( l_current_marker ! = J2K_MS_SOT )
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{
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Stream too short, expected SOT \n " ) ;
return OPJ_FALSE ;
}
}
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return OPJ_TRUE ;
}
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opj_bool j2k_update_image_data ( opj_tcd_v2_t * p_tcd , OPJ_BYTE * p_data , opj_image_t * p_output_image )
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{
OPJ_UINT32 i , j , k = 0 ;
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OPJ_UINT32 l_width_src , l_height_src ;
OPJ_UINT32 l_width_dest , l_height_dest ;
OPJ_INT32 l_offset_x0_src , l_offset_y0_src , l_offset_x1_src , l_offset_y1_src ;
OPJ_INT32 l_start_offset_src , l_line_offset_src , l_end_offset_src ;
OPJ_UINT32 l_start_x_dest , l_start_y_dest ;
OPJ_UINT32 l_x0_dest , l_y0_dest , l_x1_dest , l_y1_dest ;
OPJ_INT32 l_start_offset_dest , l_line_offset_dest ;
opj_image_comp_t * l_img_comp_src = 00 ;
opj_image_comp_t * l_img_comp_dest = 00 ;
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opj_tcd_tilecomp_v2_t * l_tilec = 00 ;
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opj_image_t * l_image_src = 00 ;
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OPJ_UINT32 l_size_comp , l_remaining ;
OPJ_INT32 * l_dest_ptr ;
opj_tcd_resolution_v2_t * l_res = 00 ;
l_tilec = p_tcd - > tcd_image - > tiles - > comps ;
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l_image_src = p_tcd - > image ;
l_img_comp_src = l_image_src - > comps ;
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l_img_comp_dest = p_output_image - > comps ;
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for ( i = 0 ; i < l_image_src - > numcomps ; i + + ) {
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/* Allocate output component buffer if necessary */
if ( ! l_img_comp_dest - > data ) {
l_img_comp_dest - > data = ( OPJ_INT32 * ) opj_calloc ( l_img_comp_dest - > w * l_img_comp_dest - > h , sizeof ( OPJ_INT32 ) ) ;
if ( ! l_img_comp_dest - > data ) {
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return OPJ_FALSE ;
}
}
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/* Copy info from decoded comp image to output image */
l_img_comp_dest - > resno_decoded = l_img_comp_src - > resno_decoded ;
/*-----*/
/* Compute the precision of the output buffer */
l_size_comp = l_img_comp_src - > prec > > 3 ; /*(/ 8)*/
l_remaining = l_img_comp_src - > prec & 7 ; /* (%8) */
l_res = l_tilec - > resolutions + l_img_comp_src - > resno_decoded ;
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if ( l_remaining ) {
+ + l_size_comp ;
}
if ( l_size_comp = = 3 ) {
l_size_comp = 4 ;
}
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/*-----*/
/* Current tile component size*/
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/*if (i == 0) {
fprintf ( stdout , " SRC: l_res_x0=%d, l_res_x1=%d, l_res_y0=%d, l_res_y1=%d \n " ,
l_res - > x0 , l_res - > x1 , l_res - > y0 , l_res - > y1 ) ;
} */
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l_width_src = ( l_res - > x1 - l_res - > x0 ) ;
l_height_src = ( l_res - > y1 - l_res - > y0 ) ;
/* Border of the current output component*/
l_x0_dest = int_ceildivpow2 ( l_img_comp_dest - > x0 , l_img_comp_dest - > factor ) ;
l_y0_dest = int_ceildivpow2 ( l_img_comp_dest - > y0 , l_img_comp_dest - > factor ) ;
l_x1_dest = l_x0_dest + l_img_comp_dest - > w ;
l_y1_dest = l_y0_dest + l_img_comp_dest - > h ;
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/*if (i == 0) {
fprintf ( stdout , " DEST: l_x0_dest=%d, l_x1_dest=%d, l_y0_dest=%d, l_y1_dest=%d (%d) \n " ,
l_x0_dest , l_x1_dest , l_y0_dest , l_y1_dest , l_img_comp_dest - > factor ) ;
} */
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/*-----*/
/* Compute the area (l_offset_x0_src, l_offset_y0_src, l_offset_x1_src, l_offset_y1_src)
* of the input buffer ( decoded tile component ) which will be move
* in the output buffer . Compute the area of the output buffer ( l_start_x_dest ,
* l_start_y_dest , l_width_dest , l_height_dest ) which will be modified
* by this input area .
* */
if ( l_x0_dest < l_res - > x0 ) {
l_start_x_dest = l_res - > x0 - l_x0_dest ;
l_offset_x0_src = 0 ;
if ( l_x1_dest > = l_res - > x1 ) {
l_width_dest = l_width_src ;
l_offset_x1_src = 0 ;
}
else {
l_width_dest = l_x1_dest - l_res - > x0 ;
l_offset_x1_src = l_width_src - l_width_dest ;
}
}
else {
l_start_x_dest = 0 ;
l_offset_x0_src = l_x0_dest - l_res - > x0 ;
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if ( l_x1_dest > = l_res - > x1 ) {
l_width_dest = l_width_src - l_offset_x0_src ;
l_offset_x1_src = 0 ;
}
else {
l_width_dest = l_img_comp_dest - > w ;
l_offset_x1_src = l_res - > x1 - l_x1_dest ;
}
}
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if ( l_y0_dest < l_res - > y0 ) {
l_start_y_dest = l_res - > y0 - l_y0_dest ;
l_offset_y0_src = 0 ;
if ( l_y1_dest > = l_res - > y1 ) {
l_height_dest = l_height_src ;
l_offset_y1_src = 0 ;
}
else {
l_height_dest = l_y1_dest - l_res - > y0 ;
l_offset_y1_src = l_height_src - l_height_dest ;
}
}
else {
l_start_y_dest = 0 ;
l_offset_y0_src = l_y0_dest - l_res - > y0 ;
if ( l_y1_dest > = l_res - > y1 ) {
l_height_dest = l_height_src - l_offset_y0_src ;
l_offset_y1_src = 0 ;
}
else {
l_height_dest = l_img_comp_dest - > h ;
l_offset_y1_src = l_res - > y1 - l_y1_dest ;
}
}
if ( ( l_offset_x0_src < 0 ) | | ( l_offset_y0_src < 0 ) | | ( l_offset_x1_src < 0 ) | | ( l_offset_y1_src < 0 ) ) {
return OPJ_FALSE ;
}
/*-----*/
/* Compute the input buffer offset */
l_start_offset_src = l_offset_x0_src + l_offset_y0_src * l_width_src ;
l_line_offset_src = l_offset_x1_src + l_offset_x0_src ;
l_end_offset_src = l_offset_y1_src * l_width_src - l_offset_x0_src ;
/* Compute the output buffer offset */
l_start_offset_dest = l_start_x_dest + l_start_y_dest * l_img_comp_dest - > w ;
l_line_offset_dest = l_img_comp_dest - > w - l_width_dest ;
/* Move the output buffer to the first place where we will write*/
l_dest_ptr = l_img_comp_dest - > data + l_start_offset_dest ;
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/*if (i == 0) {
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fprintf ( stdout , " COMPO[%d]: \n " , i ) ;
fprintf ( stdout , " SRC: l_start_x_src=%d, l_start_y_src=%d, l_width_src=%d, l_height_src=%d \n "
" \t tile offset:%d, %d, %d, %d \n "
" \t buffer offset: %d; %d, %d \n " ,
l_res - > x0 , l_res - > y0 , l_width_src , l_height_src ,
l_offset_x0_src , l_offset_y0_src , l_offset_x1_src , l_offset_y1_src ,
l_start_offset_src , l_line_offset_src , l_end_offset_src ) ;
fprintf ( stdout , " DEST: l_start_x_dest=%d, l_start_y_dest=%d, l_width_dest=%d, l_height_dest=%d \n "
" \t start offset: %d, line offset= %d \n " ,
l_start_x_dest , l_start_y_dest , l_width_dest , l_height_dest , l_start_offset_dest , l_line_offset_dest ) ;
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} */
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switch ( l_size_comp ) {
case 1 :
{
OPJ_CHAR * l_src_ptr = ( OPJ_CHAR * ) p_data ;
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l_src_ptr + = l_start_offset_src ; /* Move to the first place where we will read*/
if ( l_img_comp_src - > sgnd ) {
for ( j = 0 ; j < l_height_dest ; + + j ) {
for ( k = 0 ; k < l_width_dest ; + + k ) {
* ( l_dest_ptr + + ) = ( OPJ_INT32 ) ( * ( l_src_ptr + + ) ) ; /* Copy only the data needed for the output image */
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}
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l_dest_ptr + = l_line_offset_dest ; /* Move to the next place where we will write */
l_src_ptr + = l_line_offset_src ; /* Move to the next place where we will read */
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}
}
else {
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for ( j = 0 ; j < l_height_dest ; + + j ) {
for ( k = 0 ; k < l_width_dest ; + + k ) {
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* ( l_dest_ptr + + ) = ( OPJ_INT32 ) ( ( * ( l_src_ptr + + ) ) & 0xff ) ;
}
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l_dest_ptr + = l_line_offset_dest ;
l_src_ptr + = l_line_offset_src ;
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}
}
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l_src_ptr + = l_end_offset_src ; /* Move to the end of this component-part of the input buffer */
p_data = ( OPJ_BYTE * ) l_src_ptr ; /* Keep the current position for the next component-part */
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}
break ;
case 2 :
{
OPJ_INT16 * l_src_ptr = ( OPJ_INT16 * ) p_data ;
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l_src_ptr + = l_start_offset_src ;
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if ( l_img_comp_src - > sgnd ) {
for ( j = 0 ; j < l_height_dest ; + + j ) {
for ( k = 0 ; k < l_width_dest ; + + k ) {
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* ( l_dest_ptr + + ) = * ( l_src_ptr + + ) ;
}
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l_dest_ptr + = l_line_offset_dest ;
l_src_ptr + = l_line_offset_src ;
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}
}
else {
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for ( j = 0 ; j < l_height_dest ; + + j ) {
for ( k = 0 ; k < l_width_dest ; + + k ) {
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* ( l_dest_ptr + + ) = ( * ( l_src_ptr + + ) ) & 0xffff ;
}
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l_dest_ptr + = l_line_offset_dest ;
l_src_ptr + = l_line_offset_src ;
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}
}
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l_src_ptr + = l_end_offset_src ;
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p_data = ( OPJ_BYTE * ) l_src_ptr ;
}
break ;
case 4 :
{
OPJ_INT32 * l_src_ptr = ( OPJ_INT32 * ) p_data ;
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l_src_ptr + = l_start_offset_src ;
for ( j = 0 ; j < l_height_dest ; + + j ) {
for ( k = 0 ; k < l_width_dest ; + + k ) {
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* ( l_dest_ptr + + ) = ( * ( l_src_ptr + + ) ) ;
}
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l_dest_ptr + = l_line_offset_dest ;
l_src_ptr + = l_line_offset_src ;
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}
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l_src_ptr + = l_end_offset_src ;
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p_data = ( OPJ_BYTE * ) l_src_ptr ;
}
break ;
}
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+ + l_img_comp_dest ;
+ + l_img_comp_src ;
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+ + l_tilec ;
}
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return OPJ_TRUE ;
}
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/**
* Sets the given area to be decoded . This function should be called right after opj_read_header and before any tile header reading .
*
* @ param p_j2k the jpeg2000 codec .
* @ param p_start_x the left position of the rectangle to decode ( in image coordinates ) .
* @ param p_end_x the right position of the rectangle to decode ( in image coordinates ) .
* @ param p_start_y the up position of the rectangle to decode ( in image coordinates ) .
* @ param p_end_y the bottom position of the rectangle to decode ( in image coordinates ) .
* @ param p_manager the user event manager
*
* @ return true if the area could be set .
*/
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opj_bool j2k_set_decode_area ( opj_j2k_v2_t * p_j2k ,
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opj_image_t * p_image ,
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OPJ_INT32 p_start_x , OPJ_INT32 p_start_y ,
OPJ_INT32 p_end_x , OPJ_INT32 p_end_y ,
struct opj_event_mgr * p_manager )
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{
opj_cp_v2_t * l_cp = & ( p_j2k - > m_cp ) ;
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opj_image_t * l_image = p_j2k - > m_private_image ;
OPJ_UINT32 it_comp ;
OPJ_INT32 l_comp_x1 , l_comp_y1 ;
opj_image_comp_t * l_img_comp = NULL ;
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/* Check if we are read the main header */
if ( p_j2k - > m_specific_param . m_decoder . m_state ! = J2K_STATE_TPHSOT ) { // FIXME J2K_DEC_STATE_TPHSOT)
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Need to decode the main header before begin to decode the remaining codestream " ) ;
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return OPJ_FALSE ;
}
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if ( ! p_start_x & & ! p_start_y & & ! p_end_x & & ! p_end_y ) {
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opj_event_msg_v2 ( p_manager , EVT_INFO , " No decoded area parameters, set the decoded area to the whole image \n " ) ;
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p_j2k - > m_specific_param . m_decoder . m_start_tile_x = 0 ;
p_j2k - > m_specific_param . m_decoder . m_start_tile_y = 0 ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_x = l_cp - > tw ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_y = l_cp - > th ;
return OPJ_TRUE ;
}
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/* ----- */
/* Check if the positions provided by the user are correct */
/* Left */
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if ( p_start_x > l_image - > x1 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" Left position of the decoded area (region_x0=%d) is outside the image area (Xsiz=%d). \n " ,
p_start_x , l_image - > x1 ) ;
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return OPJ_FALSE ;
}
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else if ( p_start_x < l_image - > x0 ) {
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opj_event_msg_v2 ( p_manager , EVT_WARNING ,
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" Left position of the decoded area (region_x0=%d) is outside the image area (XOsiz=%d). \n " ,
p_start_x , l_image - > x0 ) ;
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p_j2k - > m_specific_param . m_decoder . m_start_tile_x = 0 ;
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p_image - > x0 = l_image - > x0 ;
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}
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else {
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p_j2k - > m_specific_param . m_decoder . m_start_tile_x = ( p_start_x - l_cp - > tx0 ) / l_cp - > tdx ;
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p_image - > x0 = p_start_x ;
}
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/* Up */
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if ( p_start_y > l_image - > y1 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" Up position of the decoded area (region_y0=%d) is outside the image area (Ysiz=%d). \n " ,
p_start_y , l_image - > y1 ) ;
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return OPJ_FALSE ;
}
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else if ( p_start_y < l_image - > y0 ) {
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opj_event_msg_v2 ( p_manager , EVT_WARNING ,
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" Up position of the decoded area (region_y0=%d) is outside the image area (YOsiz=%d). \n " ,
p_start_y , l_image - > y0 ) ;
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p_j2k - > m_specific_param . m_decoder . m_start_tile_y = 0 ;
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p_image - > y0 = l_image - > y0 ;
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}
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else {
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p_j2k - > m_specific_param . m_decoder . m_start_tile_y = ( p_start_y - l_cp - > ty0 ) / l_cp - > tdy ;
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p_image - > y0 = p_start_y ;
}
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/* Right */
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if ( p_end_x < l_image - > x0 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" Right position of the decoded area (region_x1=%d) is outside the image area (XOsiz=%d). \n " ,
p_end_x , l_image - > x0 ) ;
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return OPJ_FALSE ;
}
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else if ( p_end_x > l_image - > x1 ) {
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opj_event_msg_v2 ( p_manager , EVT_WARNING ,
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" Right position of the decoded area (region_x1=%d) is outside the image area (Xsiz=%d). \n " ,
p_end_x , l_image - > x1 ) ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_x = l_cp - > tw ;
p_image - > x1 = l_image - > x1 ;
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}
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else {
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p_j2k - > m_specific_param . m_decoder . m_end_tile_x = int_ceildiv ( ( p_end_x - l_cp - > tx0 ) , l_cp - > tdx ) ;
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p_image - > x1 = p_end_x ;
}
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/* Bottom */
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if ( p_end_y < l_image - > y0 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR ,
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" Bottom position of the decoded area (region_y1=%d) is outside the image area (YOsiz=%d). \n " ,
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p_end_y , l_image - > y0 ) ;
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return OPJ_FALSE ;
}
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if ( p_end_y > l_image - > y1 ) {
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opj_event_msg_v2 ( p_manager , EVT_WARNING ,
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" Bottom position of the decoded area (region_y1=%d) is outside the image area (Ysiz=%d). \n " ,
p_end_y , l_image - > y1 ) ;
p_j2k - > m_specific_param . m_decoder . m_end_tile_y = l_cp - > th ;
p_image - > y1 = l_image - > y1 ;
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}
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else {
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p_j2k - > m_specific_param . m_decoder . m_end_tile_y = int_ceildiv ( ( p_end_y - l_cp - > ty0 ) , l_cp - > tdy ) ;
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p_image - > y1 = p_end_y ;
}
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/* ----- */
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p_j2k - > m_specific_param . m_decoder . m_discard_tiles = 1 ;
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l_img_comp = p_image - > comps ;
for ( it_comp = 0 ; it_comp < p_image - > numcomps ; + + it_comp )
{
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OPJ_INT32 l_h , l_w ;
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l_img_comp - > x0 = int_ceildiv ( p_image - > x0 , l_img_comp - > dx ) ;
l_img_comp - > y0 = int_ceildiv ( p_image - > y0 , l_img_comp - > dy ) ;
l_comp_x1 = int_ceildiv ( p_image - > x1 , l_img_comp - > dx ) ;
l_comp_y1 = int_ceildiv ( p_image - > y1 , l_img_comp - > dy ) ;
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l_w = int_ceildivpow2 ( l_comp_x1 , l_img_comp - > factor )
- int_ceildivpow2 ( l_img_comp - > x0 , l_img_comp - > factor ) ;
if ( l_w < 0 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR ,
" Size x of the decoded component image is incorrect (comp[%d].w=%d). \n " ,
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it_comp , l_w ) ;
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return OPJ_FALSE ;
}
2011-11-17 15:29:36 +01:00
l_img_comp - > w = l_w ;
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l_h = int_ceildivpow2 ( l_comp_y1 , l_img_comp - > factor )
- int_ceildivpow2 ( l_img_comp - > y0 , l_img_comp - > factor ) ;
if ( l_h < 0 ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR ,
" Size y of the decoded component image is incorrect (comp[%d].h=%d). \n " ,
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it_comp , l_h ) ;
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return OPJ_FALSE ;
}
2011-11-17 15:29:36 +01:00
l_img_comp - > h = l_h ;
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l_img_comp + + ;
}
opj_event_msg_v2 ( p_manager , EVT_INFO , " Setting decoding area to %d,%d,%d,%d \n " ,
p_image - > x0 , p_image - > y0 , p_image - > x1 , p_image - > y1 ) ;
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return OPJ_TRUE ;
}
/* ----------------------------------------------------------------------- */
/* J2K / JPT decoder interface */
/* ----------------------------------------------------------------------- */
/**
* Creates a J2K decompression structure .
*
* @ return a handle to a J2K decompressor if successful , NULL otherwise .
*/
opj_j2k_v2_t * j2k_create_decompress_v2 ( )
{
opj_j2k_v2_t * l_j2k = ( opj_j2k_v2_t * ) opj_malloc ( sizeof ( opj_j2k_v2_t ) ) ;
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if ( ! l_j2k ) {
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return 00 ;
}
memset ( l_j2k , 0 , sizeof ( opj_j2k_v2_t ) ) ;
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2011-09-19 15:04:04 +02:00
l_j2k - > m_is_decoder = 1 ;
l_j2k - > m_cp . m_is_decoder = 1 ;
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2011-09-27 14:14:11 +02:00
l_j2k - > m_specific_param . m_decoder . m_default_tcp = ( opj_tcp_v2_t * ) opj_malloc ( sizeof ( opj_tcp_v2_t ) ) ;
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if ( ! l_j2k - > m_specific_param . m_decoder . m_default_tcp ) {
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j2k_destroy ( l_j2k ) ;
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return 00 ;
}
memset ( l_j2k - > m_specific_param . m_decoder . m_default_tcp , 0 , sizeof ( opj_tcp_v2_t ) ) ;
l_j2k - > m_specific_param . m_decoder . m_header_data = ( OPJ_BYTE * ) opj_malloc ( J2K_DEFAULT_HEADER_SIZE ) ;
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if ( ! l_j2k - > m_specific_param . m_decoder . m_header_data ) {
2011-09-19 15:04:04 +02:00
j2k_destroy ( l_j2k ) ;
return 00 ;
}
2011-09-19 15:30:21 +02:00
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l_j2k - > m_specific_param . m_decoder . m_header_data_size = J2K_DEFAULT_HEADER_SIZE ;
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l_j2k - > m_specific_param . m_decoder . m_tile_ind_to_dec = - 1 ;
l_j2k - > m_specific_param . m_decoder . m_last_sot_read_pos = 0 ;
2011-09-27 14:14:11 +02:00
/* codestream index creation */
l_j2k - > cstr_index = j2k_create_cstr_index ( ) ;
/*(opj_codestream_index_t*) opj_malloc(sizeof(opj_codestream_index_t));
if ( ! l_j2k - > cstr_index ) {
j2k_destroy ( l_j2k ) ;
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return NULL ;
}
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l_j2k - > cstr_index - > marker = ( opj_marker_info_t * ) opj_malloc ( 100 * sizeof ( opj_marker_info_t ) ) ;
*/
/* validation list creation */
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l_j2k - > m_validation_list = opj_procedure_list_create ( ) ;
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if ( ! l_j2k - > m_validation_list ) {
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j2k_destroy ( l_j2k ) ;
return 00 ;
}
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/* execution list creation */
2011-09-19 15:04:04 +02:00
l_j2k - > m_procedure_list = opj_procedure_list_create ( ) ;
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if ( ! l_j2k - > m_procedure_list ) {
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j2k_destroy ( l_j2k ) ;
return 00 ;
}
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2011-09-19 15:04:04 +02:00
return l_j2k ;
}
2011-09-27 14:14:11 +02:00
opj_codestream_index_t * j2k_create_cstr_index ( void )
{
opj_codestream_index_t * cstr_index = ( opj_codestream_index_t * )
opj_calloc ( 1 , sizeof ( opj_codestream_index_t ) ) ;
if ( ! cstr_index )
return NULL ;
cstr_index - > maxmarknum = 100 ;
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cstr_index - > marknum = 0 ;
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cstr_index - > marker = ( opj_marker_info_t * )
opj_calloc ( cstr_index - > maxmarknum , sizeof ( opj_marker_info_t ) ) ;
if ( ! cstr_index - > marker )
return NULL ;
cstr_index - > tile_index = NULL ;
return cstr_index ;
}
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/**
* Reads a SPCod or SPCoc element , i . e . the coding style of a given component of a tile .
* @ param p_header_data the data contained in the COM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the COM marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_SPCod_SPCoc (
opj_j2k_v2_t * p_j2k ,
OPJ_UINT32 compno ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 * p_header_size ,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i , l_tmp ;
opj_cp_v2_t * l_cp = NULL ;
opj_tcp_v2_t * l_tcp = NULL ;
opj_tccp_t * l_tccp = NULL ;
OPJ_BYTE * l_current_ptr = NULL ;
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_header_data ! = 00 ) ;
l_cp = & ( p_j2k - > m_cp ) ;
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l_tcp = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ) ?
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& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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/* precondition again */
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assert ( compno < p_j2k - > m_private_image - > numcomps ) ;
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l_tccp = & l_tcp - > tccps [ compno ] ;
l_current_ptr = p_header_data ;
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/* make sure room is sufficient */
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if ( * p_header_size < 5 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading SPCod SPCoc element \n " ) ;
return OPJ_FALSE ;
}
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opj_read_bytes ( l_current_ptr , & l_tccp - > numresolutions , 1 ) ; /* SPcox (D) */
+ + l_tccp - > numresolutions ; /* tccp->numresolutions = read() + 1 */
+ + l_current_ptr ;
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/* If user wants to remove more resolutions than the codestream contains, return error */
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if ( l_cp - > m_specific_param . m_dec . m_reduce > = l_tccp - > numresolutions ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error decoding component %d. \n The number of resolutions to remove is higher than the number "
" of resolutions of this component \n Modify the cp_reduce parameter. \n \n " , compno ) ;
p_j2k - > m_specific_param . m_decoder . m_state | = 0x8000 ; // FIXME J2K_DEC_STATE_ERR;
return OPJ_FALSE ;
}
opj_read_bytes ( l_current_ptr , & l_tccp - > cblkw , 1 ) ; /* SPcoc (E) */
+ + l_current_ptr ;
l_tccp - > cblkw + = 2 ;
opj_read_bytes ( l_current_ptr , & l_tccp - > cblkh , 1 ) ; /* SPcoc (F) */
+ + l_current_ptr ;
l_tccp - > cblkh + = 2 ;
opj_read_bytes ( l_current_ptr , & l_tccp - > cblksty , 1 ) ; /* SPcoc (G) */
+ + l_current_ptr ;
opj_read_bytes ( l_current_ptr , & l_tccp - > qmfbid , 1 ) ; /* SPcoc (H) */
+ + l_current_ptr ;
* p_header_size = * p_header_size - 5 ;
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/* use custom precinct size ? */
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if ( l_tccp - > csty & J2K_CCP_CSTY_PRT ) {
if ( * p_header_size < l_tccp - > numresolutions ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading SPCod SPCoc element \n " ) ;
return OPJ_FALSE ;
}
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for ( i = 0 ; i < l_tccp - > numresolutions ; + + i ) {
opj_read_bytes ( l_current_ptr , & l_tmp , 1 ) ; /* SPcoc (I_i) */
+ + l_current_ptr ;
l_tccp - > prcw [ i ] = l_tmp & 0xf ;
l_tccp - > prch [ i ] = l_tmp > > 4 ;
}
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* p_header_size = * p_header_size - l_tccp - > numresolutions ;
}
else {
/* set default size for the precinct width and height */
for ( i = 0 ; i < l_tccp - > numresolutions ; + + i ) {
l_tccp - > prcw [ i ] = 15 ;
l_tccp - > prch [ i ] = 15 ;
}
}
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# ifdef WIP_REMOVE_MSD
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/* INDEX >> */
if ( p_j2k - > cstr_info & & compno = = 0 ) {
OPJ_UINT32 l_data_size = l_tccp - > numresolutions * sizeof ( OPJ_UINT32 ) ;
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p_j2k - > cstr_info - > tile [ p_j2k - > m_current_tile_number ] . tccp_info [ compno ] . cblkh = l_tccp - > cblkh ;
p_j2k - > cstr_info - > tile [ p_j2k - > m_current_tile_number ] . tccp_info [ compno ] . cblkw = l_tccp - > cblkw ;
p_j2k - > cstr_info - > tile [ p_j2k - > m_current_tile_number ] . tccp_info [ compno ] . numresolutions = l_tccp - > numresolutions ;
p_j2k - > cstr_info - > tile [ p_j2k - > m_current_tile_number ] . tccp_info [ compno ] . cblksty = l_tccp - > cblksty ;
p_j2k - > cstr_info - > tile [ p_j2k - > m_current_tile_number ] . tccp_info [ compno ] . qmfbid = l_tccp - > qmfbid ;
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memcpy ( p_j2k - > cstr_info - > tile [ p_j2k - > m_current_tile_number ] . pdx , l_tccp - > prcw , l_data_size ) ;
memcpy ( p_j2k - > cstr_info - > tile [ p_j2k - > m_current_tile_number ] . pdy , l_tccp - > prch , l_data_size ) ;
}
/* << INDEX */
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# endif
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return OPJ_TRUE ;
}
/**
* Copies the tile component parameters of all the component from the first tile component .
*
* @ param p_j2k the J2k codec .
*/
void j2k_copy_tile_component_parameters ( opj_j2k_v2_t * p_j2k )
{
// loop
OPJ_UINT32 i ;
opj_cp_v2_t * l_cp = NULL ;
opj_tcp_v2_t * l_tcp = NULL ;
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opj_tccp_t * l_ref_tccp = NULL , * l_copied_tccp = NULL ;
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OPJ_UINT32 l_prc_size ;
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
l_cp = & ( p_j2k - > m_cp ) ;
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l_tcp = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ) ? /* FIXME J2K_DEC_STATE_TPH*/
& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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l_ref_tccp = & l_tcp - > tccps [ 0 ] ;
l_copied_tccp = l_ref_tccp + 1 ;
l_prc_size = l_ref_tccp - > numresolutions * sizeof ( OPJ_UINT32 ) ;
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for ( i = 1 ; i < p_j2k - > m_private_image - > numcomps ; + + i ) {
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l_copied_tccp - > numresolutions = l_ref_tccp - > numresolutions ;
l_copied_tccp - > cblkw = l_ref_tccp - > cblkw ;
l_copied_tccp - > cblkh = l_ref_tccp - > cblkh ;
l_copied_tccp - > cblksty = l_ref_tccp - > cblksty ;
l_copied_tccp - > qmfbid = l_ref_tccp - > qmfbid ;
memcpy ( l_copied_tccp - > prcw , l_ref_tccp - > prcw , l_prc_size ) ;
memcpy ( l_copied_tccp - > prch , l_ref_tccp - > prch , l_prc_size ) ;
+ + l_copied_tccp ;
}
}
/**
* Reads a SQcd or SQcc element , i . e . the quantization values of a band .
*
* @ param p_comp_no the component being targeted .
* @ param p_header_data the data contained in the COM box .
* @ param p_j2k the jpeg2000 codec .
* @ param p_header_size the size of the data contained in the COM marker .
* @ param p_manager the user event manager .
*/
opj_bool j2k_read_SQcd_SQcc (
opj_j2k_v2_t * p_j2k ,
OPJ_UINT32 p_comp_no ,
OPJ_BYTE * p_header_data ,
OPJ_UINT32 * p_header_size ,
struct opj_event_mgr * p_manager
)
{
// loop
OPJ_UINT32 l_band_no ;
opj_cp_v2_t * l_cp = 00 ;
opj_tcp_v2_t * l_tcp = 00 ;
opj_tccp_t * l_tccp = 00 ;
OPJ_BYTE * l_current_ptr = 00 ;
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OPJ_UINT32 l_tmp , l_num_band ;
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// preconditions
assert ( p_j2k ! = 00 ) ;
assert ( p_manager ! = 00 ) ;
assert ( p_header_data ! = 00 ) ;
l_cp = & ( p_j2k - > m_cp ) ;
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// come from tile part header or main header ?
l_tcp = ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ) ? /*FIXME J2K_DEC_STATE_TPH*/
& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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// precondition again
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assert ( p_comp_no < p_j2k - > m_private_image - > numcomps ) ;
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l_tccp = & l_tcp - > tccps [ p_comp_no ] ;
l_current_ptr = p_header_data ;
if ( * p_header_size < 1 ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Error reading SQcd or SQcc element \n " ) ;
return OPJ_FALSE ;
}
* p_header_size - = 1 ;
opj_read_bytes ( l_current_ptr , & l_tmp , 1 ) ; /* Sqcx */
+ + l_current_ptr ;
l_tccp - > qntsty = l_tmp & 0x1f ;
l_tccp - > numgbits = l_tmp > > 5 ;
if ( l_tccp - > qntsty = = J2K_CCP_QNTSTY_SIQNT ) {
l_num_band = 1 ;
}
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else {
l_num_band = ( l_tccp - > qntsty = = J2K_CCP_QNTSTY_NOQNT ) ?
( * p_header_size ) :
( * p_header_size ) / 2 ;
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if ( l_num_band > J2K_MAXBANDS ) {
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opj_event_msg_v2 ( p_manager , EVT_WARNING , " While reading CCP_QNTSTY element inside QCD or QCC marker segment, "
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" number of subbands (%d) is greater to J2K_MAXBANDS (%d). So we limit the number of elements stored to "
" J2K_MAXBANDS (%d) and skip the rest. \n " , l_num_band , J2K_MAXBANDS , J2K_MAXBANDS ) ;
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//return OPJ_FALSE;
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}
}
# ifdef USE_JPWL
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if ( l_cp - > correct ) {
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/* if JPWL is on, we check whether there are too many subbands */
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if ( ( l_num_band < 0 ) | | ( l_num_band > = J2K_MAXBANDS ) ) {
opj_event_msg_v2 ( p_manager , JPWL_ASSUME ? EVT_WARNING : EVT_ERROR ,
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" JPWL: bad number of subbands in Sqcx (%d) \n " ,
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l_num_band ) ;
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if ( ! JPWL_ASSUME ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " JPWL: giving up \n " ) ;
return OPJ_FALSE ;
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}
/* we try to correct */
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l_num_band = 1 ;
opj_event_msg_v2 ( p_manager , EVT_WARNING , " - trying to adjust them \n "
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" - setting number of bands to %d => HYPOTHESIS!!! \n " ,
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l_num_band ) ;
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} ;
} ;
# endif /* USE_JPWL */
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if ( l_tccp - > qntsty = = J2K_CCP_QNTSTY_NOQNT ) {
for ( l_band_no = 0 ; l_band_no < l_num_band ; l_band_no + + ) {
opj_read_bytes ( l_current_ptr , & l_tmp , 1 ) ; /* SPqcx_i */
+ + l_current_ptr ;
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if ( l_band_no < J2K_MAXBANDS ) {
l_tccp - > stepsizes [ l_band_no ] . expn = l_tmp > > 3 ;
l_tccp - > stepsizes [ l_band_no ] . mant = 0 ;
}
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}
* p_header_size = * p_header_size - l_num_band ;
}
else {
for ( l_band_no = 0 ; l_band_no < l_num_band ; l_band_no + + ) {
opj_read_bytes ( l_current_ptr , & l_tmp , 2 ) ; /* SPqcx_i */
l_current_ptr + = 2 ;
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if ( l_band_no < J2K_MAXBANDS ) {
l_tccp - > stepsizes [ l_band_no ] . expn = l_tmp > > 11 ;
l_tccp - > stepsizes [ l_band_no ] . mant = l_tmp & 0x7ff ;
}
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}
* p_header_size = * p_header_size - 2 * l_num_band ;
}
/* Add Antonin : if scalar_derived -> compute other stepsizes */
if ( l_tccp - > qntsty = = J2K_CCP_QNTSTY_SIQNT ) {
for ( l_band_no = 1 ; l_band_no < J2K_MAXBANDS ; l_band_no + + ) {
l_tccp - > stepsizes [ l_band_no ] . expn =
( ( l_tccp - > stepsizes [ 0 ] . expn ) - ( ( l_band_no - 1 ) / 3 ) > 0 ) ?
( l_tccp - > stepsizes [ 0 ] . expn ) - ( ( l_band_no - 1 ) / 3 ) : 0 ;
l_tccp - > stepsizes [ l_band_no ] . mant = l_tccp - > stepsizes [ 0 ] . mant ;
}
}
return OPJ_TRUE ;
}
/**
* Copies the tile component parameters of all the component from the first tile component .
*
* @ param p_j2k the J2k codec .
*/
void j2k_copy_tile_quantization_parameters ( opj_j2k_v2_t * p_j2k )
{
OPJ_UINT32 i ;
opj_cp_v2_t * l_cp = NULL ;
opj_tcp_v2_t * l_tcp = NULL ;
opj_tccp_t * l_ref_tccp = NULL ;
opj_tccp_t * l_copied_tccp = NULL ;
OPJ_UINT32 l_size ;
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/* preconditions */
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assert ( p_j2k ! = 00 ) ;
l_cp = & ( p_j2k - > m_cp ) ;
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l_tcp = p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_TPH ?
& l_cp - > tcps [ p_j2k - > m_current_tile_number ] :
p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
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l_ref_tccp = & l_tcp - > tccps [ 0 ] ;
l_copied_tccp = l_ref_tccp + 1 ;
l_size = J2K_MAXBANDS * sizeof ( opj_stepsize_t ) ;
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for ( i = 1 ; i < p_j2k - > m_private_image - > numcomps ; + + i ) {
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l_copied_tccp - > qntsty = l_ref_tccp - > qntsty ;
l_copied_tccp - > numgbits = l_ref_tccp - > numgbits ;
memcpy ( l_copied_tccp - > stepsizes , l_ref_tccp - > stepsizes , l_size ) ;
+ + l_copied_tccp ;
}
}
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/**
* Dump some elements from the J2K decompression structure .
*
* @ param p_j2k the jpeg2000 codec .
* @ param flag flag to describe what elments are dump .
* @ param out_stream output stream where dump the elements .
*
*/
void j2k_dump ( opj_j2k_v2_t * p_j2k , OPJ_INT32 flag , FILE * out_stream )
{
/* Check if the flag is compatible with j2k file*/
if ( ( flag & OPJ_JP2_INFO ) | | ( flag & OPJ_JP2_IND ) ) {
fprintf ( out_stream , " Wrong flag \n " ) ;
return ;
}
/* Dump the image_header */
if ( flag & OPJ_IMG_INFO ) {
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if ( p_j2k - > m_private_image )
j2k_dump_image_header ( p_j2k - > m_private_image , 0 , out_stream ) ;
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}
/* Dump the codestream info from main header */
if ( flag & OPJ_J2K_MH_INFO ) {
j2k_dump_MH_info ( p_j2k , out_stream ) ;
}
/* Dump the codestream info of the current tile */
if ( flag & OPJ_J2K_TH_INFO ) {
}
/* Dump the codestream index from main header */
if ( flag & OPJ_J2K_MH_IND ) {
j2k_dump_MH_index ( p_j2k , out_stream ) ;
}
/* Dump the codestream index of the current tile */
if ( flag & OPJ_J2K_TH_IND ) {
}
}
/**
* Dump index elements of the codestream extract from the main header .
*
* @ param p_j2k the jpeg2000 codec .
* @ param out_stream output stream where dump the elements .
*
*/
void j2k_dump_MH_index ( opj_j2k_v2_t * p_j2k , FILE * out_stream )
{
opj_codestream_index_t * cstr_index = p_j2k - > cstr_index ;
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OPJ_UINT32 it_marker , it_tile , it_tile_part ;
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fprintf ( out_stream , " Codestream index from main header: { \n " ) ;
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fprintf ( out_stream , " \t Main header start position=% " OPJ_OFF_F " d \n "
" \t Main header end position=% " OPJ_OFF_F " d \n " ,
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cstr_index - > main_head_start , cstr_index - > main_head_end ) ;
fprintf ( out_stream , " \t Marker list: { \n " ) ;
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if ( cstr_index - > marker ) {
for ( it_marker = 0 ; it_marker < cstr_index - > marknum ; it_marker + + ) {
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fprintf ( out_stream , " \t \t type=%#x, pos=% " OPJ_OFF_F " d, len=%d \n " ,
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cstr_index - > marker [ it_marker ] . type ,
cstr_index - > marker [ it_marker ] . pos ,
cstr_index - > marker [ it_marker ] . len ) ;
}
}
fprintf ( out_stream , " \t } \n " ) ;
if ( cstr_index - > tile_index ) {
fprintf ( out_stream , " \t Tile index: { \n " ) ;
for ( it_tile = 0 ; it_tile < cstr_index - > nb_of_tiles ; it_tile + + ) {
OPJ_UINT32 nb_of_tile_part = cstr_index - > tile_index [ it_tile ] . nb_tps ;
fprintf ( out_stream , " \t \t nb of tile-part in tile [%d]=%d \n " , it_tile , nb_of_tile_part ) ;
if ( cstr_index - > tile_index [ it_tile ] . tp_index ) {
for ( it_tile_part = 0 ; it_tile_part < nb_of_tile_part ; it_tile_part + + ) {
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fprintf ( out_stream , " \t \t \t tile-part[%d]: star_pos=% " OPJ_OFF_F " d, end_header=% " OPJ_OFF_F " d, end_pos=% " OPJ_OFF_F " d. \n " ,
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it_tile_part ,
cstr_index - > tile_index [ it_tile ] . tp_index [ it_tile_part ] . start_pos ,
cstr_index - > tile_index [ it_tile ] . tp_index [ it_tile_part ] . end_header ,
cstr_index - > tile_index [ it_tile ] . tp_index [ it_tile_part ] . end_pos ) ;
}
}
if ( cstr_index - > tile_index [ it_tile ] . marker ) {
for ( it_marker = 0 ; it_marker < cstr_index - > tile_index [ it_tile ] . marknum ; it_marker + + ) {
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fprintf ( out_stream , " \t \t type=%#x, pos=% " OPJ_OFF_F " d, len=%d \n " ,
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cstr_index - > tile_index [ it_tile ] . marker [ it_marker ] . type ,
cstr_index - > tile_index [ it_tile ] . marker [ it_marker ] . pos ,
cstr_index - > tile_index [ it_tile ] . marker [ it_marker ] . len ) ;
}
}
}
fprintf ( out_stream , " \t } \n " ) ;
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}
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fprintf ( out_stream , " } \n " ) ;
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}
/**
* Dump info elements of the codestream extract from the main header .
*
* @ param p_j2k the jpeg2000 codec .
* @ param out_stream output stream where dump the elements .
*
*/
void j2k_dump_MH_info ( opj_j2k_v2_t * p_j2k , FILE * out_stream )
{
opj_tcp_v2_t * l_default_tile = NULL ;
fprintf ( out_stream , " Codestream info from main header: { \n " ) ;
fprintf ( out_stream , " \t tx0=%d, ty0=%d \n " , p_j2k - > m_cp . tx0 , p_j2k - > m_cp . ty0 ) ;
fprintf ( out_stream , " \t tdx=%d, tdy=%d \n " , p_j2k - > m_cp . tdx , p_j2k - > m_cp . tdy ) ;
fprintf ( out_stream , " \t tw=%d, th=%d \n " , p_j2k - > m_cp . tw , p_j2k - > m_cp . th ) ;
l_default_tile = p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
if ( l_default_tile )
{
OPJ_INT32 compno ;
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OPJ_INT32 numcomps = p_j2k - > m_private_image - > numcomps ;
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fprintf ( out_stream , " \t default tile { \n " ) ;
fprintf ( out_stream , " \t \t csty=%#x \n " , l_default_tile - > csty ) ;
fprintf ( out_stream , " \t \t prg=%#x \n " , l_default_tile - > prg ) ;
fprintf ( out_stream , " \t \t numlayers=%d \n " , l_default_tile - > numlayers ) ;
fprintf ( out_stream , " \t \t mct=%x \n " , l_default_tile - > mct ) ;
for ( compno = 0 ; compno < numcomps ; compno + + ) {
opj_tccp_t * l_tccp = & ( l_default_tile - > tccps [ compno ] ) ;
OPJ_INT32 resno , bandno , numbands ;
/* coding style*/
fprintf ( out_stream , " \t \t comp %d { \n " , compno ) ;
fprintf ( out_stream , " \t \t \t csty=%#x \n " , l_tccp - > csty ) ;
fprintf ( out_stream , " \t \t \t numresolutions=%d \n " , l_tccp - > numresolutions ) ;
fprintf ( out_stream , " \t \t \t cblkw=2^%d \n " , l_tccp - > cblkw ) ;
fprintf ( out_stream , " \t \t \t cblkh=2^%d \n " , l_tccp - > cblkh ) ;
fprintf ( out_stream , " \t \t \t cblksty=%#x \n " , l_tccp - > cblksty ) ;
fprintf ( out_stream , " \t \t \t qmfbid=%d \n " , l_tccp - > qmfbid ) ;
fprintf ( out_stream , " \t \t \t preccintsize (w,h)= " ) ;
for ( resno = 0 ; resno < l_tccp - > numresolutions ; resno + + ) {
fprintf ( out_stream , " (%d,%d) " , l_tccp - > prcw [ resno ] , l_tccp - > prch [ resno ] ) ;
}
fprintf ( out_stream , " \n " ) ;
/* quantization style*/
fprintf ( out_stream , " \t \t \t qntsty=%d \n " , l_tccp - > qntsty ) ;
fprintf ( out_stream , " \t \t \t numgbits=%d \n " , l_tccp - > numgbits ) ;
fprintf ( out_stream , " \t \t \t stepsizes (m,e)= " ) ;
numbands = ( l_tccp - > qntsty = = J2K_CCP_QNTSTY_SIQNT ) ? 1 : l_tccp - > numresolutions * 3 - 2 ;
for ( bandno = 0 ; bandno < numbands ; bandno + + ) {
fprintf ( out_stream , " (%d,%d) " , l_tccp - > stepsizes [ bandno ] . mant ,
l_tccp - > stepsizes [ bandno ] . expn ) ;
}
fprintf ( out_stream , " \n " ) ;
/* RGN value*/
fprintf ( out_stream , " \t \t \t roishift=%d \n " , l_tccp - > roishift ) ;
fprintf ( out_stream , " \t \t } \n " ) ;
} /*end of component of default tile*/
fprintf ( out_stream , " \t } \n " ) ; /*end of default tile*/
}
fprintf ( out_stream , " } \n " ) ;
}
/**
* Dump an image header structure .
*
* @ param img_header the image header to dump .
* @ param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function
* @ param out_stream output stream where dump the elements .
*/
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void j2k_dump_image_header ( opj_image_t * img_header , opj_bool dev_dump_flag , FILE * out_stream )
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{
char tab [ 2 ] ;
if ( dev_dump_flag ) {
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fprintf ( stdout , " [DEV] Dump an image_header struct { \n " ) ;
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tab [ 0 ] = ' \0 ' ;
}
else {
fprintf ( out_stream , " Image info { \n " ) ;
tab [ 0 ] = ' \t ' ; tab [ 1 ] = ' \0 ' ;
}
fprintf ( out_stream , " %s x0=%d, y0=%d \n " , tab , img_header - > x0 , img_header - > y0 ) ;
fprintf ( out_stream , " %s x1=%d, y1=%d \n " , tab , img_header - > x1 , img_header - > y1 ) ;
fprintf ( out_stream , " %s numcomps=%d \n " , tab , img_header - > numcomps ) ;
if ( img_header - > comps ) {
int compno ;
for ( compno = 0 ; compno < img_header - > numcomps ; compno + + ) {
fprintf ( out_stream , " %s \t component %d { \n " , tab , compno ) ;
j2k_dump_image_comp_header ( & ( img_header - > comps [ compno ] ) , dev_dump_flag , out_stream ) ;
fprintf ( out_stream , " %s} \n " , tab ) ;
}
}
fprintf ( out_stream , " } \n " ) ;
}
/**
* Dump a component image header structure .
*
* @ param comp_header the component image header to dump .
* @ param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function
* @ param out_stream output stream where dump the elements .
*/
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void j2k_dump_image_comp_header ( opj_image_comp_t * comp_header , opj_bool dev_dump_flag , FILE * out_stream )
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{
char tab [ 3 ] ;
if ( dev_dump_flag ) {
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fprintf ( stdout , " [DEV] Dump an image_comp_header struct { \n " ) ;
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tab [ 0 ] = ' \0 ' ;
} else {
tab [ 0 ] = ' \t ' ; tab [ 1 ] = ' \t ' ; tab [ 2 ] = ' \0 ' ;
}
fprintf ( out_stream , " %s dx=%d, dy=%d \n " , tab , comp_header - > dx , comp_header - > dy ) ;
fprintf ( out_stream , " %s prec=%d \n " , tab , comp_header - > prec ) ;
fprintf ( out_stream , " %s sgnd=%d \n " , tab , comp_header - > sgnd ) ;
if ( dev_dump_flag )
fprintf ( out_stream , " } \n " ) ;
}
/**
* Get the codestream info from a JPEG2000 codec .
*
* @ param p_j2k the component image header to dump .
*
* @ return the codestream information extract from the jpg2000 codec
*/
opj_codestream_info_v2_t * j2k_get_cstr_info ( opj_j2k_v2_t * p_j2k )
{
OPJ_UINT16 compno ;
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OPJ_UINT16 numcomps = p_j2k - > m_private_image - > numcomps ;
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opj_tcp_v2_t * l_default_tile ;
opj_codestream_info_v2_t * cstr_info = ( opj_codestream_info_v2_t * ) opj_calloc ( 1 , sizeof ( opj_codestream_info_v2_t ) ) ;
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cstr_info - > nbcomps = p_j2k - > m_private_image - > numcomps ;
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cstr_info - > tx0 = p_j2k - > m_cp . tx0 ;
cstr_info - > ty0 = p_j2k - > m_cp . ty0 ;
cstr_info - > tdx = p_j2k - > m_cp . tdx ;
cstr_info - > tdy = p_j2k - > m_cp . tdy ;
cstr_info - > tw = p_j2k - > m_cp . tw ;
cstr_info - > th = p_j2k - > m_cp . th ;
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cstr_info - > tile_info = NULL ; /* Not fill from the main header*/
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l_default_tile = p_j2k - > m_specific_param . m_decoder . m_default_tcp ;
cstr_info - > m_default_tile_info . csty = l_default_tile - > csty ;
cstr_info - > m_default_tile_info . prg = l_default_tile - > prg ;
cstr_info - > m_default_tile_info . numlayers = l_default_tile - > numlayers ;
cstr_info - > m_default_tile_info . mct = l_default_tile - > mct ;
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cstr_info - > m_default_tile_info . tccp_info = ( opj_tccp_info_t * ) opj_calloc ( cstr_info - > nbcomps , sizeof ( opj_tccp_info_t ) ) ;
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for ( compno = 0 ; compno < numcomps ; compno + + ) {
opj_tccp_t * l_tccp = & ( l_default_tile - > tccps [ compno ] ) ;
opj_tccp_info_t * l_tccp_info = & ( cstr_info - > m_default_tile_info . tccp_info [ compno ] ) ;
OPJ_INT32 bandno , numbands ;
/* coding style*/
l_tccp_info - > csty = l_tccp - > csty ;
l_tccp_info - > numresolutions = l_tccp - > numresolutions ;
l_tccp_info - > cblkw = l_tccp - > cblkw ;
l_tccp_info - > cblkh = l_tccp - > cblkh ;
l_tccp_info - > cblksty = l_tccp - > cblksty ;
l_tccp_info - > qmfbid = l_tccp - > qmfbid ;
if ( l_tccp - > numresolutions < J2K_MAXRLVLS )
{
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memcpy ( l_tccp_info - > prch , l_tccp - > prch , l_tccp - > numresolutions ) ;
memcpy ( l_tccp_info - > prcw , l_tccp - > prcw , l_tccp - > numresolutions ) ;
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}
/* quantization style*/
l_tccp_info - > qntsty = l_tccp - > qntsty ;
l_tccp_info - > numgbits = l_tccp - > numgbits ;
numbands = ( l_tccp - > qntsty = = J2K_CCP_QNTSTY_SIQNT ) ? 1 : l_tccp - > numresolutions * 3 - 2 ;
if ( numbands < J2K_MAXBANDS ) {
for ( bandno = 0 ; bandno < numbands ; bandno + + ) {
l_tccp_info - > stepsizes_mant [ bandno ] = l_tccp - > stepsizes [ bandno ] . mant ;
l_tccp_info - > stepsizes_expn [ bandno ] = l_tccp - > stepsizes [ bandno ] . expn ;
}
}
/* RGN value*/
l_tccp_info - > roishift = l_tccp - > roishift ;
}
return cstr_info ;
}
/**
* Get the codestream index from a JPEG2000 codec .
*
* @ param p_j2k the component image header to dump .
*
* @ return the codestream index extract from the jpg2000 codec
*/
opj_codestream_index_t * j2k_get_cstr_index ( opj_j2k_v2_t * p_j2k )
{
opj_codestream_index_t * l_cstr_index = ( opj_codestream_index_t * )
opj_calloc ( 1 , sizeof ( opj_codestream_index_t ) ) ;
if ( ! l_cstr_index )
return NULL ;
l_cstr_index - > main_head_start = p_j2k - > cstr_index - > main_head_start ;
l_cstr_index - > main_head_end = p_j2k - > cstr_index - > main_head_end ;
l_cstr_index - > codestream_size = p_j2k - > cstr_index - > codestream_size ;
l_cstr_index - > marknum = p_j2k - > cstr_index - > marknum ;
l_cstr_index - > marker = ( opj_marker_info_t * ) opj_malloc ( l_cstr_index - > marknum * sizeof ( opj_marker_info_t ) ) ;
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if ( ! l_cstr_index - > marker ) {
opj_free ( l_cstr_index ) ;
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return NULL ;
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}
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if ( p_j2k - > cstr_index - > marker )
memcpy ( l_cstr_index - > marker , p_j2k - > cstr_index - > marker , l_cstr_index - > marknum * sizeof ( opj_marker_info_t ) ) ;
else {
opj_free ( l_cstr_index - > marker ) ;
l_cstr_index - > marker = NULL ;
}
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l_cstr_index - > nb_of_tiles = p_j2k - > cstr_index - > nb_of_tiles ;
l_cstr_index - > tile_index = ( opj_tile_index_t * ) opj_calloc ( l_cstr_index - > nb_of_tiles , sizeof ( opj_tile_index_t ) ) ;
if ( ! l_cstr_index - > tile_index ) {
opj_free ( l_cstr_index - > marker ) ;
opj_free ( l_cstr_index ) ;
return NULL ;
}
if ( ! p_j2k - > cstr_index - > tile_index ) {
opj_free ( l_cstr_index - > tile_index ) ;
l_cstr_index - > tile_index = NULL ;
}
else {
OPJ_UINT32 it_tile = 0 ;
for ( it_tile = 0 ; it_tile < l_cstr_index - > nb_of_tiles ; it_tile + + ) {
/* Tile Marker*/
l_cstr_index - > tile_index [ it_tile ] . marknum = p_j2k - > cstr_index - > tile_index [ it_tile ] . marknum ;
l_cstr_index - > tile_index [ it_tile ] . marker =
( opj_marker_info_t * ) opj_malloc ( l_cstr_index - > tile_index [ it_tile ] . marknum * sizeof ( opj_marker_info_t ) ) ;
if ( ! l_cstr_index - > tile_index [ it_tile ] . marker ) {
OPJ_UINT32 it_tile_free ;
for ( it_tile_free = 0 ; it_tile_free < it_tile ; it_tile_free + + ) {
opj_free ( l_cstr_index - > tile_index [ it_tile_free ] . marker ) ;
}
opj_free ( l_cstr_index - > tile_index ) ;
opj_free ( l_cstr_index - > marker ) ;
opj_free ( l_cstr_index ) ;
return NULL ;
}
if ( p_j2k - > cstr_index - > tile_index [ it_tile ] . marker )
memcpy ( l_cstr_index - > tile_index [ it_tile ] . marker ,
p_j2k - > cstr_index - > tile_index [ it_tile ] . marker ,
l_cstr_index - > tile_index [ it_tile ] . marknum * sizeof ( opj_marker_info_t ) ) ;
else {
opj_free ( l_cstr_index - > tile_index [ it_tile ] . marker ) ;
l_cstr_index - > tile_index [ it_tile ] . marker = NULL ;
}
/* Tile part index*/
l_cstr_index - > tile_index [ it_tile ] . nb_tps = p_j2k - > cstr_index - > tile_index [ it_tile ] . nb_tps ;
l_cstr_index - > tile_index [ it_tile ] . tp_index =
( opj_tp_index_t * ) opj_malloc ( l_cstr_index - > tile_index [ it_tile ] . nb_tps * sizeof ( opj_tp_index_t ) ) ;
if ( ! l_cstr_index - > tile_index [ it_tile ] . tp_index ) {
OPJ_UINT32 it_tile_free ;
for ( it_tile_free = 0 ; it_tile_free < it_tile ; it_tile_free + + ) {
opj_free ( l_cstr_index - > tile_index [ it_tile_free ] . marker ) ;
opj_free ( l_cstr_index - > tile_index [ it_tile_free ] . tp_index ) ;
}
opj_free ( l_cstr_index - > tile_index ) ;
opj_free ( l_cstr_index - > marker ) ;
opj_free ( l_cstr_index ) ;
return NULL ;
}
if ( p_j2k - > cstr_index - > tile_index [ it_tile ] . tp_index ) {
memcpy ( l_cstr_index - > tile_index [ it_tile ] . tp_index ,
p_j2k - > cstr_index - > tile_index [ it_tile ] . tp_index ,
l_cstr_index - > tile_index [ it_tile ] . nb_tps * sizeof ( opj_tp_index_t ) ) ;
}
else {
opj_free ( l_cstr_index - > tile_index [ it_tile ] . tp_index ) ;
l_cstr_index - > tile_index [ it_tile ] . tp_index = NULL ;
}
/* Packet index (NOT USED)*/
l_cstr_index - > tile_index [ it_tile ] . nb_packet = 0 ;
l_cstr_index - > tile_index [ it_tile ] . packet_index = NULL ;
}
}
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return l_cstr_index ;
}
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opj_bool j2k_allocate_tile_element_cstr_index ( opj_j2k_v2_t * p_j2k )
{
OPJ_UINT32 it_tile = 0 ;
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p_j2k - > cstr_index - > nb_of_tiles = p_j2k - > m_cp . tw * p_j2k - > m_cp . th ;
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p_j2k - > cstr_index - > tile_index = ( opj_tile_index_t * ) opj_calloc ( p_j2k - > cstr_index - > nb_of_tiles , sizeof ( opj_tile_index_t ) ) ;
if ( ! p_j2k - > cstr_index - > tile_index )
return OPJ_FALSE ;
for ( it_tile = 0 ; it_tile < p_j2k - > cstr_index - > nb_of_tiles ; it_tile + + ) {
p_j2k - > cstr_index - > tile_index [ it_tile ] . maxmarknum = 100 ;
p_j2k - > cstr_index - > tile_index [ it_tile ] . marknum = 0 ;
p_j2k - > cstr_index - > tile_index [ it_tile ] . marker = ( opj_marker_info_t * )
opj_calloc ( p_j2k - > cstr_index - > tile_index [ it_tile ] . maxmarknum , sizeof ( opj_marker_info_t ) ) ;
if ( ! p_j2k - > cstr_index - > tile_index [ it_tile ] . marker )
return OPJ_FALSE ;
}
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return OPJ_TRUE ;
}
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/**
* Reads the tiles .
*/
opj_bool j2k_decode_tiles ( opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager )
{
opj_bool l_go_on = OPJ_TRUE ;
OPJ_UINT32 l_current_tile_no ;
OPJ_UINT32 l_data_size , l_max_data_size ;
OPJ_INT32 l_tile_x0 , l_tile_y0 , l_tile_x1 , l_tile_y1 ;
OPJ_UINT32 l_nb_comps ;
OPJ_BYTE * l_current_data ;
l_current_data = ( OPJ_BYTE * ) opj_malloc ( 1000 ) ;
if ( ! l_current_data ) {
return OPJ_FALSE ;
}
l_max_data_size = 1000 ;
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/*Allocate and initialize some elements of codestrem index*/
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if ( ! j2k_allocate_tile_element_cstr_index ( p_j2k ) ) {
opj_free ( l_current_data ) ;
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return OPJ_FALSE ;
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}
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while ( OPJ_TRUE ) {
if ( ! j2k_read_tile_header ( p_j2k ,
& l_current_tile_no ,
& l_data_size ,
& l_tile_x0 , & l_tile_y0 ,
& l_tile_x1 , & l_tile_y1 ,
& l_nb_comps ,
& l_go_on ,
p_stream ,
p_manager ) ) {
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opj_free ( l_current_data ) ;
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return OPJ_FALSE ;
}
if ( ! l_go_on ) {
break ;
}
if ( l_data_size > l_max_data_size ) {
l_current_data = ( OPJ_BYTE * ) opj_realloc ( l_current_data , l_data_size ) ;
if ( ! l_current_data ) {
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opj_free ( l_current_data ) ;
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return OPJ_FALSE ;
}
l_max_data_size = l_data_size ;
}
if ( ! j2k_decode_tile ( p_j2k , l_current_tile_no , l_current_data , l_data_size , p_stream , p_manager ) ) {
opj_free ( l_current_data ) ;
return OPJ_FALSE ;
}
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opj_event_msg_v2 ( p_manager , EVT_INFO , " Tile %d/%d has been decoded. \n " , l_current_tile_no + 1 , p_j2k - > m_cp . th * p_j2k - > m_cp . tw ) ;
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if ( ! j2k_update_image_data ( p_j2k - > m_tcd , l_current_data , p_j2k - > m_output_image ) ) {
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opj_free ( l_current_data ) ;
return OPJ_FALSE ;
}
opj_event_msg_v2 ( p_manager , EVT_INFO , " Image data has been updated with tile %d. \n \n " , l_current_tile_no + 1 ) ;
}
opj_free ( l_current_data ) ;
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return OPJ_TRUE ;
}
/**
* Sets up the procedures to do on decoding data . Developpers wanting to extend the library can add their own reading procedures .
*/
void j2k_setup_decoding ( opj_j2k_v2_t * p_j2k )
{
// preconditions
assert ( p_j2k ! = 00 ) ;
opj_procedure_list_add_procedure ( p_j2k - > m_procedure_list , ( void * ) j2k_decode_tiles ) ;
/* DEVELOPER CORNER, add your custom procedures */
}
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/*
* Read and decode one tile .
*/
opj_bool j2k_decode_one_tile ( opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_event_mgr_t * p_manager )
{
opj_bool l_go_on = OPJ_TRUE ;
OPJ_UINT32 l_current_tile_no ;
OPJ_UINT32 l_tile_no_to_dec ;
OPJ_UINT32 l_data_size , l_max_data_size ;
OPJ_INT32 l_tile_x0 , l_tile_y0 , l_tile_x1 , l_tile_y1 ;
OPJ_UINT32 l_nb_comps ;
OPJ_BYTE * l_current_data ;
l_current_data = ( OPJ_BYTE * ) opj_malloc ( 1000 ) ;
if ( ! l_current_data ) {
return OPJ_FALSE ;
}
l_max_data_size = 1000 ;
/*Allocate and initialize some elements of codestrem index if not already done*/
if ( ! p_j2k - > cstr_index - > tile_index )
{
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if ( ! j2k_allocate_tile_element_cstr_index ( p_j2k ) ) {
opj_free ( l_current_data ) ;
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return OPJ_FALSE ;
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}
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}
/* Move into the codestream to the first SOT used to decode the desired tile */
l_tile_no_to_dec = p_j2k - > m_specific_param . m_decoder . m_tile_ind_to_dec ;
if ( p_j2k - > cstr_index - > tile_index )
if ( p_j2k - > cstr_index - > tile_index - > tp_index )
{
if ( ! p_j2k - > cstr_index - > tile_index [ l_tile_no_to_dec ] . nb_tps ) {
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/* the index for this tile has not been built,
* so move to the last SOT read */
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if ( opj_stream_read_seek ( p_stream , p_j2k - > m_specific_param . m_decoder . m_last_sot_read_pos + 2 , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Problem with seek function \n " ) ;
return OPJ_FALSE ;
}
}
else {
if ( opj_stream_read_seek ( p_stream , p_j2k - > cstr_index - > tile_index [ l_tile_no_to_dec ] . tp_index [ 0 ] . start_pos + 2 , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Problem with seek function \n " ) ;
return OPJ_FALSE ;
}
}
/* Special case if we have previously read the EOC marker (if the previous tile getted is the last ) */
if ( p_j2k - > m_specific_param . m_decoder . m_state = = J2K_STATE_EOC )
p_j2k - > m_specific_param . m_decoder . m_state = J2K_STATE_TPHSOT ;
}
while ( OPJ_TRUE ) {
if ( ! j2k_read_tile_header ( p_j2k ,
& l_current_tile_no ,
& l_data_size ,
& l_tile_x0 , & l_tile_y0 ,
& l_tile_x1 , & l_tile_y1 ,
& l_nb_comps ,
& l_go_on ,
p_stream ,
p_manager ) ) {
opj_free ( l_current_data ) ;
return OPJ_FALSE ;
}
if ( ! l_go_on ) {
break ;
}
if ( l_data_size > l_max_data_size ) {
l_current_data = ( OPJ_BYTE * ) opj_realloc ( l_current_data , l_data_size ) ;
if ( ! l_current_data ) {
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opj_free ( l_current_data ) ;
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return OPJ_FALSE ;
}
l_max_data_size = l_data_size ;
}
if ( ! j2k_decode_tile ( p_j2k , l_current_tile_no , l_current_data , l_data_size , p_stream , p_manager ) ) {
opj_free ( l_current_data ) ;
return OPJ_FALSE ;
}
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opj_event_msg_v2 ( p_manager , EVT_INFO , " Tile %d/%d has been decoded. \n " , l_current_tile_no , ( p_j2k - > m_cp . th * p_j2k - > m_cp . tw ) - 1 ) ;
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if ( ! j2k_update_image_data ( p_j2k - > m_tcd , l_current_data , p_j2k - > m_output_image ) ) {
opj_free ( l_current_data ) ;
return OPJ_FALSE ;
}
opj_event_msg_v2 ( p_manager , EVT_INFO , " Image data has been updated with tile %d. \n \n " , l_current_tile_no ) ;
if ( l_current_tile_no = = l_tile_no_to_dec )
{
/* move into the codestream to the the first SOT (FIXME or not move?)*/
if ( opj_stream_read_seek ( p_stream , p_j2k - > cstr_index - > main_head_end + 2 , p_manager ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Problem with seek function \n " ) ;
return OPJ_FALSE ;
}
break ;
}
else {
opj_event_msg_v2 ( p_manager , EVT_WARNING , " Tile read, decode and updated is not the desired (%d vs %d). \n " , l_current_tile_no , l_tile_no_to_dec ) ;
}
}
opj_free ( l_current_data ) ;
return OPJ_TRUE ;
}
/**
* Sets up the procedures to do on decoding one tile . Developpers wanting to extend the library can add their own reading procedures .
*/
void j2k_setup_decoding_tile ( opj_j2k_v2_t * p_j2k )
{
// preconditions
assert ( p_j2k ! = 00 ) ;
opj_procedure_list_add_procedure ( p_j2k - > m_procedure_list , ( void * ) j2k_decode_one_tile ) ;
/* DEVELOPER CORNER, add your custom procedures */
}
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/**
* Decodes the tiles of the stream .
*/
opj_bool j2k_decode_v2 ( opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_image_t * p_image ,
opj_event_mgr_t * p_manager )
{
OPJ_UINT32 compno ;
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if ( ! p_image )
return OPJ_FALSE ;
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p_j2k - > m_output_image = opj_image_create0 ( ) ;
if ( ! ( p_j2k - > m_output_image ) ) {
return OPJ_FALSE ;
}
opj_copy_image_header ( p_image , p_j2k - > m_output_image ) ;
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/* customization of the decoding */
j2k_setup_decoding ( p_j2k ) ;
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/* Decode the codestream */
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if ( ! j2k_exec ( p_j2k , p_j2k - > m_procedure_list , p_stream , p_manager ) ) {
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opj_image_destroy ( p_j2k - > m_private_image ) ;
p_j2k - > m_private_image = NULL ;
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return OPJ_FALSE ;
}
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/* Move data and copy one information from codec to output image*/
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for ( compno = 0 ; compno < p_image - > numcomps ; compno + + ) {
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p_image - > comps [ compno ] . resno_decoded = p_j2k - > m_output_image - > comps [ compno ] . resno_decoded ;
p_image - > comps [ compno ] . data = p_j2k - > m_output_image - > comps [ compno ] . data ;
p_j2k - > m_output_image - > comps [ compno ] . data = NULL ;
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}
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return OPJ_TRUE ;
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}
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/**
* Get the decoded tile .
*
* @ param p_j2k the jpeg2000 codestream codec .
* @ param p_stream input_stream
* @ param p_image output image . .
* @ param p_manager the user event manager
* @ param tile_index index of the tile we want decode
*
* @ return true if succeed .
*/
opj_bool j2k_get_tile ( opj_j2k_v2_t * p_j2k ,
opj_stream_private_t * p_stream ,
opj_image_t * p_image ,
struct opj_event_mgr * p_manager ,
OPJ_UINT32 tile_index )
{
OPJ_UINT32 compno ;
OPJ_UINT32 l_tile_x , l_tile_y ;
opj_image_comp_t * l_img_comp ;
if ( ! p_image ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " We need an image previously created. \n " ) ;
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return OPJ_FALSE ;
}
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if ( ( tile_index < 0 ) & & ( tile_index > = p_j2k - > m_cp . tw * p_j2k - > m_cp . th ) ) {
opj_event_msg_v2 ( p_manager , EVT_ERROR , " Tile index provided by the user is incorrect %d (max = %d) \n " , tile_index , ( p_j2k - > m_cp . tw * p_j2k - > m_cp . th ) - 1 ) ;
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return OPJ_FALSE ;
}
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/* Compute the dimension of the desired tile*/
l_tile_x = tile_index % p_j2k - > m_cp . tw ;
l_tile_y = tile_index / p_j2k - > m_cp . tw ;
p_image - > x0 = l_tile_x * p_j2k - > m_cp . tdx + p_j2k - > m_cp . tx0 ;
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if ( p_image - > x0 < p_j2k - > m_private_image - > x0 )
p_image - > x0 = p_j2k - > m_private_image - > x0 ;
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p_image - > x1 = ( l_tile_x + 1 ) * p_j2k - > m_cp . tdx + p_j2k - > m_cp . tx0 ;
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if ( p_image - > x1 > p_j2k - > m_private_image - > x1 )
p_image - > x1 = p_j2k - > m_private_image - > x1 ;
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p_image - > y0 = l_tile_y * p_j2k - > m_cp . tdy + p_j2k - > m_cp . ty0 ;
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if ( p_image - > y0 < p_j2k - > m_private_image - > y0 )
p_image - > y0 = p_j2k - > m_private_image - > y0 ;
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p_image - > y1 = ( l_tile_y + 1 ) * p_j2k - > m_cp . tdy + p_j2k - > m_cp . ty0 ;
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if ( p_image - > y1 > p_j2k - > m_private_image - > y1 )
p_image - > y1 = p_j2k - > m_private_image - > y1 ;
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l_img_comp = p_image - > comps ;
for ( compno = 0 ; compno < p_image - > numcomps ; + + compno )
{
OPJ_INT32 l_comp_x1 , l_comp_y1 ;
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l_img_comp - > factor = p_j2k - > m_private_image - > comps [ compno ] . factor ;
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l_img_comp - > x0 = int_ceildiv ( p_image - > x0 , l_img_comp - > dx ) ;
l_img_comp - > y0 = int_ceildiv ( p_image - > y0 , l_img_comp - > dy ) ;
l_comp_x1 = int_ceildiv ( p_image - > x1 , l_img_comp - > dx ) ;
l_comp_y1 = int_ceildiv ( p_image - > y1 , l_img_comp - > dy ) ;
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l_img_comp - > w = int_ceildivpow2 ( l_comp_x1 , l_img_comp - > factor ) - int_ceildivpow2 ( l_img_comp - > x0 , l_img_comp - > factor ) ;
l_img_comp - > h = int_ceildivpow2 ( l_comp_y1 , l_img_comp - > factor ) - int_ceildivpow2 ( l_img_comp - > y0 , l_img_comp - > factor ) ;
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l_img_comp + + ;
}
/* Destroy the previous output image*/
if ( p_j2k - > m_output_image )
opj_image_destroy ( p_j2k - > m_output_image ) ;
/* Create the ouput image from the information previously computed*/
p_j2k - > m_output_image = opj_image_create0 ( ) ;
if ( ! ( p_j2k - > m_output_image ) ) {
return OPJ_FALSE ;
}
opj_copy_image_header ( p_image , p_j2k - > m_output_image ) ;
p_j2k - > m_specific_param . m_decoder . m_tile_ind_to_dec = tile_index ;
/* customization of the decoding */
j2k_setup_decoding_tile ( p_j2k ) ;
/* Decode the codestream */
if ( ! j2k_exec ( p_j2k , p_j2k - > m_procedure_list , p_stream , p_manager ) ) {
opj_image_destroy ( p_j2k - > m_private_image ) ;
p_j2k - > m_private_image = NULL ;
return OPJ_FALSE ;
}
/* Move data and copy one information from codec to output image*/
for ( compno = 0 ; compno < p_image - > numcomps ; compno + + ) {
p_image - > comps [ compno ] . resno_decoded = p_j2k - > m_output_image - > comps [ compno ] . resno_decoded ;
if ( p_image - > comps [ compno ] . data )
opj_free ( p_image - > comps [ compno ] . data ) ;
p_image - > comps [ compno ] . data = p_j2k - > m_output_image - > comps [ compno ] . data ;
p_j2k - > m_output_image - > comps [ compno ] . data = NULL ;
}
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return OPJ_TRUE ;
}
opj_bool j2k_set_decoded_resolution_factor ( opj_j2k_v2_t * p_j2k , OPJ_UINT32 res_factor , opj_event_mgr_t * p_manager )
{
OPJ_UINT32 it_comp ;
p_j2k - > m_cp . m_specific_param . m_dec . m_reduce = res_factor ;
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if ( p_j2k - > m_private_image ) {
if ( p_j2k - > m_private_image - > comps ) {
if ( p_j2k - > m_specific_param . m_decoder . m_default_tcp ) {
if ( p_j2k - > m_specific_param . m_decoder . m_default_tcp - > tccps ) {
for ( it_comp = 0 ; it_comp < p_j2k - > m_private_image - > numcomps ; it_comp + + ) {
OPJ_UINT32 max_res = p_j2k - > m_specific_param . m_decoder . m_default_tcp - > tccps [ it_comp ] . numresolutions ;
if ( res_factor > = max_res ) {
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opj_event_msg_v2 ( p_manager , EVT_ERROR , " Resolution factor is greater than the maximum resolution in the component. \n " ) ;
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return OPJ_FALSE ;
}
p_j2k - > m_private_image - > comps [ it_comp ] . factor = res_factor ;
}
return OPJ_TRUE ;
}
}
}
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}
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return OPJ_FALSE ;
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}