walkero
/
openjpeg
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity
openjpeg/libopenjpeg/j2k.c

8520 lines
251 KiB
C
Raw Blame History

/*
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2007, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
* Copyright (c) 2005, Herve Drolon, FreeImage Team
* Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
* Copyright (c) 2006-2007, Parvatha Elangovan
* Copyright (c) 2010-2011, Kaori Hagihara
* Copyright (c) 2011, Mickael Savinaud, Communications & Systemes <mickael.savinaud@c-s.fr>
* 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"
/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
/*@{*/
/** @name Local static functions */
/*@{*/
/**
* 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.
*/
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 );
/**
* 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);
/**
* 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);
/**
* 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
);
/**
* 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);
static opj_bool j2k_update_image_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data, opj_image_t* p_output_image);
/*
* -----------------------------------------------------------------------
* -----------------------------------------------------------------------
* -----------------------------------------------------------------------
*/
/**
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);
/**
* 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
);
/**
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);
/**
* 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
);
/**
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);
/**
* 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
);
/**
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);
/**
* 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
);
/**
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);
/**
* 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
);
/**
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);
/**
* 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
);
/**
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);
/**
* 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);
/**
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);
/**
* 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
);
/**
Read the CRG marker (component registration)
@param j2k J2K handle
*/
static void j2k_read_crg(opj_j2k_t *j2k);
/**
* 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
);
/**
Read the TLM marker (tile-part lengths)
@param j2k J2K handle
*/
static void j2k_read_tlm(opj_j2k_t *j2k);
/**
* 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
);
/**
Read the PLM marker (packet length, main header)
@param j2k J2K handle
*/
static void j2k_read_plm(opj_j2k_t *j2k);
/**
* 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
);
/**
Read the PLT marker (packet length, tile-part header)
@param j2k J2K handle
*/
static void j2k_read_plt(opj_j2k_t *j2k);
/**
* 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
);
/**
Read the PPM marker (packet packet headers, main header)
@param j2k J2K handle
*/
static void j2k_read_ppm(opj_j2k_t *j2k);
/**
* 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
);
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
);
/**
Read the PPT marker (packet packet headers, tile-part header)
@param j2k J2K handle
*/
static void j2k_read_ppt(opj_j2k_t *j2k);
/**
* 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
);
/**
Write the TLM marker (Mainheader)
@param j2k J2K handle
*/
static void j2k_write_tlm(opj_j2k_t *j2k);
/**
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);
/**
* 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
);
/**
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);
/**
* 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
);
/**
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);
/**
* 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
) ;
/**
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);
/**
* 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
) ;
/**
Read an unknown marker
@param j2k J2K handle
*/
static void j2k_read_unk(opj_j2k_t *j2k);
/**
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);
static void j2k_add_mhmarker_v2(opj_codestream_index_t *cstr_index, OPJ_UINT32 type, OPJ_OFF_T pos, OPJ_UINT32 len) ;
/**
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);
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);
/**
* 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.
*/
static opj_bool j2k_read_unk_v2 ( opj_j2k_v2_t *p_j2k,
struct opj_stream_private *p_stream,
OPJ_UINT32 *output_marker,
struct opj_event_mgr * p_manager );
/**
* 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 );
/**
* 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 );
/**
* 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);
/**
* 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);
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);
/*@}*/
/*@}*/
/* ----------------------------------------------------------------------- */
typedef struct j2k_prog_order{
OPJ_PROG_ORDER enum_prog;
char str_prog[5];
}j2k_prog_order_t;
j2k_prog_order_t j2k_prog_order_list[] = {
{CPRL, "CPRL"},
{LRCP, "LRCP"},
{PCRL, "PCRL"},
{RLCP, "RLCP"},
{RPCL, "RPCL"},
{(OPJ_PROG_ORDER)-1, ""}
};
/**
* FIXME DOC
*/
const OPJ_UINT32 MCT_ELEMENT_SIZE [] =
{
2,
4,
4,
8
};
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
};
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},
{J2K_MS_PPM, J2K_STATE_MH, j2k_read_ppm_v3},
{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},
{J2K_MS_CBD, J2K_STATE_MH , j2k_read_cbd},
{J2K_MS_MCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mcc},
{J2K_MS_MCO, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mco},
#ifdef USE_JPWL
#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
#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 */
{J2K_MS_UNK, J2K_STATE_MH | J2K_STATE_TPH, 0}//j2k_read_unk_v2}
};
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.
*/
char *j2k_convert_progression_order(OPJ_PROG_ORDER prg_order){
j2k_prog_order_t *po;
for(po = j2k_prog_order_list; po->enum_prog != -1; po++ ){
if(po->enum_prog == prg_order){
return po->str_prog;
}
}
return po->str_prog;
}
/* ----------------------------------------------------------------------- */
static int j2k_get_num_tp(opj_cp_t *cp,int pino,int tileno){
char *prog;
int i;
int tpnum=1,tpend=0;
opj_tcp_t *tcp = &cp->tcps[tileno];
prog = j2k_convert_progression_order(tcp->prg);
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*/
int j2k_calculate_tp(opj_cp_t *cp,int img_numcomp,opj_image_t *image,opj_j2k_t *j2k ){
int pino,tileno,totnum_tp=0;
OPJ_ARG_NOT_USED(img_numcomp);
j2k->cur_totnum_tp = (int *) opj_malloc(cp->tw * cp->th * sizeof(int));
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
int cur_totnum_tp = 0;
opj_tcp_t *tcp = &cp->tcps[tileno];
for(pino = 0; pino <= tcp->numpocs; pino++) {
int tp_num=0;
opj_pi_iterator_t *pi = pi_initialise_encode(image, cp, tileno,FINAL_PASS);
if(!pi) { return -1;}
tp_num = j2k_get_num_tp(cp,pino,tileno);
totnum_tp = totnum_tp + tp_num;
cur_totnum_tp = cur_totnum_tp + tp_num;
pi_destroy(pi, cp, tileno);
}
j2k->cur_totnum_tp[tileno] = cur_totnum_tp;
/* INDEX >> */
if (j2k->cstr_info) {
j2k->cstr_info->tile[tileno].num_tps = cur_totnum_tp;
j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(cur_totnum_tp * sizeof(opj_tp_info_t));
}
/* << INDEX */
}
return totnum_tp;
}
static void j2k_write_soc(opj_j2k_t *j2k) {
opj_cio_t *cio = j2k->cio;
cio_write(cio, J2K_MS_SOC, 2);
if(j2k->cstr_info)
j2k_add_mhmarker(j2k->cstr_info, J2K_MS_SOC, cio_tell(cio), 0);
/* 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 */
}
static void j2k_read_soc(opj_j2k_t *j2k) {
j2k->state = J2K_STATE_MHSIZ;
/* 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;
}
}
/**
* 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 )
{
OPJ_BYTE l_data [2];
OPJ_UINT32 l_marker;
/* preconditions */
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;
}
/* Next marker should be a SIZ marker in the main header */
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_MHSIZ;
/* FIXME move it in a index structure included in p_j2k*/
p_j2k->cstr_index->main_head_start = opj_stream_tell(p_stream) - 2;
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);
return OPJ_TRUE;
}
static void j2k_write_siz(opj_j2k_t *j2k) {
int i;
int lenp, len;
opj_cio_t *cio = j2k->cio;
opj_image_t *image = j2k->image;
opj_cp_t *cp = j2k->cp;
cio_write(cio, J2K_MS_SIZ, 2); /* SIZ */
lenp = cio_tell(cio);
cio_skip(cio, 2);
cio_write(cio, cp->rsiz, 2); /* Rsiz (capabilities) */
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);
if(j2k->cstr_info)
j2k_add_mhmarker(j2k->cstr_info, J2K_MS_SIZ, lenp, len);
}
static void j2k_read_siz(opj_j2k_t *j2k) {
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 */
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;
}
image->numcomps = cio_read(cio, 2); /* Csiz */
#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);
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
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));
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* 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 */
image->comps = (opj_image_comp_t*) opj_calloc(image->numcomps, sizeof(opj_image_comp_t));
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 */
#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);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* 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 */
/* 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 */
image->comps[i].factor = cp->reduce; /* reducing factor per component */
}
cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx);
cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy);
#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);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* 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;
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);
}
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;
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);
}
}
}
#endif /* USE_JPWL */
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));
cp->tileno_size = 0;
#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");
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
}
#endif /* USE_JPWL */
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;
j2k->default_tcp->tccps = (opj_tccp_t*) opj_calloc(image->numcomps, sizeof(opj_tccp_t));
for (i = 0; i < cp->tw * cp->th; i++) {
cp->tcps[i].tccps = (opj_tccp_t*) opj_malloc(image->numcomps * sizeof(opj_tccp_t));
}
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));
j2k->state = J2K_STATE_MH;
/* 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;
cstr_info->tile = (opj_tile_info_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tile_info_t));
}
}
/**
* 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;
opj_image_t *l_image = 00;
opj_cp_v2_t *l_cp = 00;
opj_image_comp_t * l_img_comp = 00;
opj_tcp_v2_t * l_current_tile_param = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_header_data != 00);
l_image = p_j2k->m_private_image;
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;
}
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;
}
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;
}
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;
}
#ifdef USE_JPWL
if (l_cp->correct) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
if (!(l_image->x1 * l_image->y1)) {
opj_event_msg_v2(p_manager, EVT_ERROR,
"JPWL: bad image size (%d x %d)\n",
l_image->x1, l_image->y1);
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
}
/* 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,
"JPWL: Csiz is %d => space in SIZ only for %d comps.!!!\n",
l_image->numcomps, ((len - 38) / 3));
if (!JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
*/ /* 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",
len);
} else {
l_image->numcomps = ((len - 38) / 3);
opj_event_msg_v2(p_manager, EVT_WARNING, "- setting Csiz to %d => HYPOTHESIS!!!\n",
l_image->numcomps);
}
}
*/
/* update components number in the jpwl_exp_comps filed */
l_cp->exp_comps = l_image->numcomps;
}
#endif /* USE_JPWL */
// Allocate the resulting image components
l_image->comps = (opj_image_comp_t*) opj_calloc(l_image->numcomps, sizeof(opj_image_comp_t));
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;
}
memset(l_image->comps,0,l_image->numcomps * sizeof(opj_image_comp_t));
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
if (l_cp->correct) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters, again */
if (!(l_image->comps[i].dx * l_image->comps[i].dy)) {
opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: bad XRsiz_%d/YRsiz_%d (%d x %d)\n",
i, i, l_image->comps[i].dx, l_image->comps[i].dy);
if (!JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
/* we try to correct */
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);
}
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);
}
}
}
#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
if (l_cp->correct) {
/* if JPWL is on, we check whether TX errors have damaged
too much the SIZ parameters */
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,
"JPWL: bad number of tiles (%d x %d)\n",
l_cp->tw, l_cp->th);
if (!JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
/* we try to correct */
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);
}
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"
"- setting %d tiles in x => HYPOTHESIS!!!\n",
l_cp->max_tiles, l_cp->tw);
}
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);
}
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",
"- setting %d tiles in y => HYPOTHESIS!!!\n",
l_cp->max_tiles, l_cp->th);
}
}
}
#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
if (l_cp->correct) {
if (!l_cp->tcps) {
opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: could not alloc tcps field of cp\n");
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
}
}
#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;
opj_image_comp_header_update(l_image,l_cp);
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.\nThe number of resolutions to remove is higher than the number "
"of resolutions of this component\nModify 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;
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);
if(j2k->cstr_info)
j2k_add_mhmarker(j2k->cstr_info, J2K_MS_COD, lenp, len);
}
static void j2k_read_cod(opj_j2k_t *j2k) {
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);
}
/* Index */
if (j2k->cstr_info) {
opj_codestream_info_t *cstr_info = j2k->cstr_info;
cstr_info->prog = tcp->prg;
cstr_info->numlayers = tcp->numlayers;
cstr_info->numdecompos = (int*) opj_malloc(image->numcomps * sizeof(int));
for (i = 0; i < image->numcomps; i++) {
cstr_info->numdecompos[i] = tcp->tccps[i].numresolutions - 1;
}
}
}
/**
* 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;
opj_image_t *l_image = 00;
/* preconditions */
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_image = p_j2k->m_private_image;
l_cp = &(p_j2k->m_cp);
/* If we are in the first tile-part header of the current tile */
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;
/* Make sure room is sufficient */
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;
// If user didn't set a number layer to decode take the max specify in the codestream.
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;
}
/* Apply the coding style to other components of the current tile or the m_default_tcp*/
j2k_copy_tile_component_parameters(p_j2k);
/* Index */
#ifdef WIP_REMOVE_MSD
if (p_j2k->cstr_info) {
//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));
for (i = 0; i < l_image->numcomps; ++i) {
p_j2k->cstr_info->numdecompos[i] = l_tcp->tccps[i].numresolutions - 1;
}
}
#endif
return OPJ_TRUE;
}
static void j2k_write_coc(opj_j2k_t *j2k, int compno) {
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);
}
static void j2k_read_coc(opj_j2k_t *j2k) {
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);
}
/**
* 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;
opj_image_t *l_image = NULL;
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);
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;
l_image = p_j2k->m_private_image;
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;
}
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;
}
static void j2k_write_qcx(opj_j2k_t *j2k, int compno) {
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 */
}
}
}
static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len) {
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);
#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);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
numbands = 1;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust them\n"
"- setting number of bands to %d => HYPOTHESIS!!!\n",
numbands);
};
};
#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);
}
#endif /* USE_JPWL */
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;
}
if (bandno < J2K_MAXBANDS){
tccp->stepsizes[bandno].expn = expn;
tccp->stepsizes[bandno].mant = mant;
}
}
/* 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 */
}
static void j2k_write_qcd(opj_j2k_t *j2k) {
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);
if(j2k->cstr_info)
j2k_add_mhmarker(j2k->cstr_info, J2K_MS_QCD, lenp, len);
}
static void j2k_read_qcd(opj_j2k_t *j2k) {
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);
}
}
/**
* 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
)
{
/* preconditions */
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;
}
if (p_header_size != 0) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading QCD marker\n");
return OPJ_FALSE;
}
/* Apply the quantization parameters to other components of the current tile or the m_default_tcp */
j2k_copy_tile_quantization_parameters(p_j2k);
return OPJ_TRUE;
}
static void j2k_write_qcc(opj_j2k_t *j2k, int compno) {
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);
}
static void j2k_read_qcc(opj_j2k_t *j2k) {
int len, compno;
int numcomp = j2k->image->numcomps;
opj_cio_t *cio = j2k->cio;
len = cio_read(cio, 2); /* Lqcc */
compno = cio_read(cio, numcomp <= 256 ? 1 : 2); /* Cqcc */
#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);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
compno = backup_compno % numcomp;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting component number to %d\n",
compno);
}
/* keep your private count of tiles */
backup_compno++;
};
#endif /* USE_JPWL */
j2k_read_qcx(j2k, compno, len - 2 - (numcomp <= 256 ? 1 : 2));
}
/**
* 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.
*/
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)
{
OPJ_UINT32 l_num_comp,l_comp_no;
/* preconditions */
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_num_comp = p_j2k->m_private_image->numcomps;
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;
}
#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 */
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;
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;
numpchgs = 1 + tcp->numpocs;
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 */
}
}
static void j2k_read_poc(opj_j2k_t *j2k) {
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 */
poc->layno1 = cio_read(cio, 2); /* LYEpoc_i */
poc->resno1 = cio_read(cio, 1); /* REpoc_i */
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;
}
/**
* 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)
{
OPJ_UINT32 i, l_nb_comp, l_tmp;
opj_image_t * l_image = 00;
OPJ_UINT32 l_old_poc_nb, l_current_poc_nb, l_current_poc_remaining;
OPJ_UINT32 l_chunk_size, l_comp_room;
opj_cp_v2_t *l_cp = 00;
opj_tcp_v2_t *l_tcp = 00;
opj_poc_t *l_current_poc = 00;
/* preconditions */
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_image = p_j2k->m_private_image;
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);
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;
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) {
opj_read_bytes(p_header_data,&(l_current_poc->resno0),1); /* RSpoc_i */
++p_header_data;
opj_read_bytes(p_header_data,&(l_current_poc->compno0),l_comp_room); /* CSpoc_i */
p_header_data+=l_comp_room;
opj_read_bytes(p_header_data,&(l_current_poc->layno1),2); /* LYEpoc_i */
p_header_data+=2;
opj_read_bytes(p_header_data,&(l_current_poc->resno1),1); /* REpoc_i */
++p_header_data;
opj_read_bytes(p_header_data,&(l_current_poc->compno1),l_comp_room); /* CEpoc_i */
p_header_data+=l_comp_room;
opj_read_bytes(p_header_data,&l_tmp,1); /* Ppoc_i */
++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;
}
static void j2k_read_crg(opj_j2k_t *j2k) {
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 */
}
}
/**
* 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);
l_nb_comp = p_j2k->m_private_image->numcomps;
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;
}
static void j2k_read_tlm(opj_j2k_t *j2k) {
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 */
}
}
/**
* 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;
}
/* FIXME Do not care of this at the moment since only local variables are set here */
/*
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;
}
static void j2k_read_plm(opj_j2k_t *j2k) {
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;
}
}
}
/**
* 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;
}
static void j2k_read_plt(opj_j2k_t *j2k) {
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;
}
}
}
/**
* 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;
}
opj_read_bytes(p_header_data,&l_Zplt,1); /* Zplt */
++p_header_data;
--p_header_size;
for (i = 0; i < p_header_size; ++i) {
opj_read_bytes(p_header_data,&l_tmp,1); /* Iplt_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_v2(p_manager, EVT_ERROR, "Error reading PLM marker\n");
return OPJ_FALSE;
}
return OPJ_TRUE;
}
static void j2k_read_ppm(opj_j2k_t *j2k) {
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 */
cp->ppm_data = (unsigned char *) opj_realloc(cp->ppm_data, (N_ppm + cp->ppm_store) * sizeof(unsigned char));
#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));
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_free(cp->ppm_data);
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
}
#endif
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;
}
}
/**
* 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) {
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) {
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;
/* First PPM marker: Initialization */
l_cp->ppm_len = l_N_ppm;
l_cp->ppm_data_size = 0;
l_cp->ppm_buffer = (OPJ_BYTE *) opj_malloc(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,0,l_cp->ppm_len);
l_cp->ppm_data = l_cp->ppm_buffer;
}
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 ;
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;
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);
l_cp->ppm_data_current = l_cp->ppm_data;
//l_cp->ppm_data = l_cp->ppm_buffer;
}
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
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_data_read]);
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
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]);
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
memcpy(l_cp->ppm_data_current, p_header_data, l_N_ppm);
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
if (p_header_size)
{
opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm^i */
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
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]);
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
l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]);
l_cp->ppm_len += l_N_ppm;
// Read incomplete Ippm series
memcpy(l_cp->ppm_data_current, p_header_data, l_remaining_data);
p_header_size -= l_remaining_data;
p_header_data += l_remaining_data;
l_cp->ppm_data_read += l_remaining_data; // Increase the number of data read
}
#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;
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
return OPJ_TRUE;
}
static void j2k_read_ppt(opj_j2k_t *j2k) {
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 */
tcp->ppt_data = (unsigned char *) opj_realloc(tcp->ppt_data, (len - 3 + tcp->ppt_store) * sizeof(unsigned char));
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;
}
/**
* 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_ppt_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_Z_ppt;
/* preconditions */
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
/* We need to have the Z_ppt element at minimum */
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);
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;
}
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;
/* Allocate buffer to read the packet header */
if (l_Z_ppt == 0) {
/* First PPT marker */
l_tcp->ppt_data_size = 0;
l_tcp->ppt_len = p_header_size;
l_tcp->ppt_buffer = (OPJ_BYTE *) opj_calloc(l_tcp->ppt_len, sizeof(OPJ_BYTE) );
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;
/* memset(l_tcp->ppt_buffer,0,l_tcp->ppt_len); */
}
else {
l_tcp->ppt_len += p_header_size;
l_tcp->ppt_buffer = (OPJ_BYTE *) opj_realloc(l_tcp->ppt_buffer,l_tcp->ppt_len);
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;
memset(l_tcp->ppt_buffer+l_tcp->ppt_data_size,0,p_header_size);
}
/* Read packet header from buffer */
memcpy(l_tcp->ppt_buffer+l_tcp->ppt_data_size,p_header_data,p_header_size);
l_tcp->ppt_data_size += p_header_size;
return OPJ_TRUE;
}
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);
}
static void j2k_write_sot(opj_j2k_t *j2k) {
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) */
cio_write(cio, j2k->cur_tp_num , 1); /* TPsot */
cio_write(cio, j2k->cur_totnum_tp[j2k->curtileno], 1); /* TNsot */
len = cio_tell(cio) - lenp;
cio_seek(cio, lenp);
cio_write(cio, len, 2); /* Lsot */
cio_seek(cio, lenp + len);
/* 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 */
if( j2k->cstr_info && j2k->cur_tp_num==0){
j2k_add_tlmarker( j2k->curtileno, j2k->cstr_info, J2K_MS_SOT, lenp, len);
}
}
static void j2k_read_sot(opj_j2k_t *j2k) {
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;
len = cio_read(cio, 2);
tileno = cio_read(cio, 2);
#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));
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
tileno = backup_tileno;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting tile number to %d\n",
tileno);
}
/* keep your private count of tiles */
backup_tileno++;
};
#endif /* USE_JPWL */
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);
#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);
if (!JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
totlen = 0;
opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting Psot to %d => assuming it is the last tile\n",
totlen);
}
};
#endif /* USE_JPWL */
if (!totlen)
totlen = cio_numbytesleft(cio) + 8;
partno = cio_read(cio, 1);
numparts = cio_read(cio, 1);
if (partno >= numparts) {
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);
numparts = partno+1;
}
j2k->curtileno = tileno;
j2k->cur_tp_num = partno;
j2k->eot = cio_getbp(cio) - 12 + totlen;
j2k->state = J2K_STATE_TPH;
tcp = &cp->tcps[j2k->curtileno];
/* 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;
} else {
j2k->cstr_info->tile[tileno].end_pos += totlen;
}
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)*/
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) {
/* 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;
}
}
/**
* 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;
/* preconditions */
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
/* Size of this marker is fixed = 12 (we have already read marker and its size)*/
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
if (l_cp->correct) {
int tileno = p_j2k->m_current_tile_number;
static int backup_tileno = 0;
/* tileno is negative or larger than the number of tiles!!! */
if ((tileno < 0) || (tileno > (l_cp->tw * l_cp->th))) {
opj_event_msg_v2(p_manager, EVT_ERROR,
"JPWL: bad tile number (%d out of a maximum of %d)\n",
tileno, (l_cp->tw * l_cp->th));
if (!JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
/* we try to correct */
tileno = backup_tileno;
opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust this\n"
"- 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;
/* PSot should be equal to zero or >=14 or <= 2^32-1 */
if ((l_tot_len !=0 ) && (l_tot_len < 14) )
{
opj_event_msg_v2(p_manager, EVT_ERROR, "Psot value (%d) is not correct regards to the JPEG2000 norm!\n", l_tot_len);
return OPJ_FALSE;
}
#ifdef USE_JPWL
if (l_cp->correct) {
/* totlen is negative or larger than the bytes left!!! */
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,
"JPWL: bad tile byte size (%d bytes against %d bytes left)\n",
l_tot_len, p_header_size ); /* FIXME it seems correct; for info in V1 -> p_stream_numbytesleft(p_stream) + 8); */
if (!JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
/* we try to correct */
l_tot_len = 0;
opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust this\n"
"- setting Psot to %d => assuming it is the last tile\n",
l_tot_len);
}
};
#endif /* USE_JPWL */
/* Ref A.4.2: Psot could be equal zero if it is the last tile-part of the codestream.*/
if (!l_tot_len) {
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;
}
opj_read_bytes(p_header_data,&l_current_part ,1); /* TPsot */
++p_header_data;
opj_read_bytes(p_header_data,&l_num_parts ,1); /* TNsot */
++p_header_data;
if (l_num_parts != 0) { /* Number of tile-part header is provided by this tile-part header */
/* 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 );
p_j2k->m_specific_param.m_decoder.m_last_tile_part = 1;
return OPJ_FALSE;
}
}
l_tcp->m_nb_tile_parts = l_num_parts;
}
/* If know the number of tile part header we will check if we didn't read the last*/
if (l_tcp->m_nb_tile_parts) {
if (l_tcp->m_nb_tile_parts == (l_current_part + 1)) {
p_j2k->m_specific_param.m_decoder.m_can_decode = 1; /* Process the last tile-part header*/
}
}
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;
}
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPH;
/* 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);
/* Index */
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));
}
}
}
}
/* 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 */
/* if (p_j2k->cstr_info) {
if (l_tcp->first) {
if (tileno == 0) {
p_j2k->cstr_info->main_head_end = p_stream_tell(p_stream) - 13;
}
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;
if (numparts) {
p_j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(numparts * sizeof(opj_tp_info_t));
}
else {
p_j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(10 * sizeof(opj_tp_info_t)); // Fixme (10)
}
}
else {
p_j2k->cstr_info->tile[tileno].end_pos += totlen;
}
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;
}
static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder) {
int l, layno;
int totlen;
opj_tcp_t *tcp = NULL;
opj_codestream_info_t *cstr_info = NULL;
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;
tcd->tp_num = j2k->tp_num ;
tcd->cur_tp_num = j2k->cur_tp_num;
cio_write(cio, J2K_MS_SOD, 2);
if( j2k->cstr_info && j2k->cur_tp_num==0){
j2k_add_tlmarker( j2k->curtileno, j2k->cstr_info, J2K_MS_SOD, cio_tell(cio), 0);
}
if (j2k->curtileno == 0) {
j2k->sod_start = cio_tell(cio) + j2k->pos_correction;
}
/* INDEX >> */
cstr_info = j2k->cstr_info;
if (cstr_info) {
if (!j2k->cur_tp_num ) {
cstr_info->tile[j2k->curtileno].end_header = cio_tell(cio) + j2k->pos_correction - 1;
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);
}
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(j2k->cstr_info, J2K_MS_SOD, j2k->sod_start, 2);
#endif /* USE_JPWL */
/* <<UniPG */
}
/* << INDEX */
tcp = &cp->tcps[j2k->curtileno];
for (layno = 0; layno < tcp->numlayers; layno++) {
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;
}
}
if(j2k->cur_tp_num == 0){
tcd->tcd_image->tiles->packno = 0;
if(cstr_info)
cstr_info->packno = 0;
}
l = tcd_encode_tile(tcd, j2k->curtileno, cio_getbp(cio), cio_numbytesleft(cio) - 2, cstr_info);
/* 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);
/* 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);
}
static void j2k_read_sod(opj_j2k_t *j2k) {
int len, truncate = 0, i;
unsigned char *data = NULL, *data_ptr = NULL;
opj_cio_t *cio = j2k->cio;
int curtileno = j2k->curtileno;
/* 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;
}
len = int_min(j2k->eot - cio_getbp(cio), cio_numbytesleft(cio) + 1);
if (len == cio_numbytesleft(cio) + 1) {
truncate = 1; /* Case of a truncate codestream */
}
data = j2k->tile_data[curtileno];
data = (unsigned char*) opj_realloc(data, (j2k->tile_len[curtileno] + len) * sizeof(unsigned char));
data_ptr = data + j2k->tile_len[curtileno];
for (i = 0; i < len; i++) {
data_ptr[i] = cio_read(cio, 1);
}
j2k->tile_len[curtileno] += len;
j2k->tile_data[curtileno] = data;
if (!truncate) {
j2k->state = J2K_STATE_TPHSOT;
} else {
j2k->state = J2K_STATE_NEOC; /* RAJOUTE !! */
}
j2k->cur_tp_num++;
}
/**
* 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;
opj_codestream_index_t * l_cstr_index = 00;
OPJ_BYTE ** l_current_data = 00;
opj_tcp_v2_t * l_tcp = 00;
OPJ_UINT32 * l_tile_len = 00;
/* preconditions */
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]);
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);
}
else
p_j2k->m_specific_param.m_decoder.m_sot_length -= 2;
l_current_data = &(l_tcp->m_data);
l_tile_len = &l_tcp->m_data_size;
if (! *l_current_data) {
*l_current_data = (OPJ_BYTE*) opj_malloc(p_j2k->m_specific_param.m_decoder.m_sot_length);
}
else {
*l_current_data = (OPJ_BYTE*) opj_realloc(*l_current_data, *l_tile_len + p_j2k->m_specific_param.m_decoder.m_sot_length);
}
if (*l_current_data == 00) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile\n");
return OPJ_FALSE;
}
/* Index */
l_cstr_index = p_j2k->cstr_index;
if (l_cstr_index) {
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;
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);
/*l_cstr_index->packno = 0;*/
}
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);
if (l_current_read_size != p_j2k->m_specific_param.m_decoder.m_sot_length) {
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_NEOC;
}
else {
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPHSOT;
}
*l_tile_len += l_current_read_size;
return OPJ_TRUE;
}
static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno) {
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 */
}
static void j2k_read_rgn(opj_j2k_t *j2k) {
int len, compno, roisty;
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;
len = cio_read(cio, 2); /* Lrgn */
compno = cio_read(cio, numcomps <= 256 ? 1 : 2); /* Crgn */
roisty = cio_read(cio, 1); /* Srgn */
#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);
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
};
#endif /* USE_JPWL */
tcp->tccps[compno].roishift = cio_read(cio, 1); /* SPrgn */
}
static void j2k_write_eoc(opj_j2k_t *j2k) {
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);
/* 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 */
}
/**
* 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;
opj_image_t * l_image = 00;
opj_cp_v2_t *l_cp = 00;
opj_tcp_v2_t *l_tcp = 00;
OPJ_UINT32 l_comp_room, l_comp_no, l_roi_sty;
// preconditions
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_image = p_j2k->m_private_image;
l_nb_comp = l_image->numcomps;
if (l_nb_comp <= 256) {
l_comp_room = 1; }
else {
l_comp_room = 2; }
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);
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;
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
if (l_cp->correct) {
/* totlen is negative or larger than the bytes left!!! */
if (l_comp_room >= l_nb_comp) {
opj_event_msg_v2(p_manager, EVT_ERROR,
"JPWL: bad component number in RGN (%d when there are only %d)\n",
l_comp_room, l_nb_comp);
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
}
};
#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);
for (i = 0; i < j2k->cp->tileno_size; i++) {
tcd_malloc_decode_tile(tcd, j2k->image, j2k->cp, i, j2k->cstr_info);
tileno = j2k->cp->tileno[i];
success = tcd_decode_tile(tcd, j2k->tile_data[tileno], j2k->tile_len[tileno], tileno, j2k->cstr_info);
opj_free(j2k->tile_data[tileno]);
j2k->tile_data[tileno] = NULL;
tcd_free_decode_tile(tcd, i);
if (success == OPJ_FALSE) {
j2k->state |= J2K_STATE_ERR;
break;
}
}
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;
}
}
if (j2k->state & J2K_STATE_ERR)
j2k->state = J2K_STATE_MT + J2K_STATE_ERR;
else
j2k->state = J2K_STATE_MT;
}
/**
* 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.
*/
opj_bool j2k_read_eoc_v2 ( opj_j2k_v2_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager )
{
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;
/* preconditions */
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;
}
l_success = tcd_decode_tile_v2(l_tcd, l_tcp->m_data, l_tcp->m_data_size, i, p_j2k->cstr_index);
/* cleanup */
if (! l_success) {
p_j2k->m_specific_param.m_decoder.m_state |= J2K_STATE_ERR;
break;
}
}
j2k_tcp_destroy(l_tcp);
++l_tcp;
}
tcd_destroy_v2(l_tcd);
return OPJ_TRUE;
}
typedef struct opj_dec_mstabent {
/** 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);
} opj_dec_mstabent_t;
opj_dec_mstabent_t j2k_dec_mstab[] = {
{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},
#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 */
#ifdef USE_JPSEC
{J2K_MS_SEC, J2K_STATE_MH, j2k_read_sec},
{J2K_MS_INSEC, 0, j2k_read_insec},
#endif /* USE_JPSEC */
{0, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_unk}
};
static void j2k_read_unk(opj_j2k_t *j2k) {
opj_event_msg(j2k->cinfo, EVT_WARNING, "Unknown marker\n");
#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,
"- possible synch loss due to uncorrectable codestream errors => giving up\n");
return;
}
/* 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 */
}
/**
* 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,
OPJ_UINT32 *output_marker,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_unknown_marker;
const opj_dec_memory_marker_handler_t * l_marker_handler;
OPJ_UINT32 l_size_unk = 2;
// 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 {
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;
}
}
}
*output_marker = l_marker_handler->id ;
return OPJ_TRUE;
}
/**
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) {
opj_dec_mstabent_t *e;
for (e = j2k_dec_mstab; e->id != 0; e++) {
if (e->id == id) {
break;
}
}
return e;
}
/**
* 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;
}
/**
* 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;
}
/**
* 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);
l_image = p_j2k->m_private_image;
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;
if (! j2k_add_mct(l_tcp,p_j2k->m_private_image,l_tmp)) {
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;
}
/**
* 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);
l_num_comp = p_j2k->m_private_image->numcomps;
if (p_header_size != (p_j2k->m_private_image->numcomps + 2)) {
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;
}
l_comp = p_j2k->m_private_image->comps;
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;
}
/* ----------------------------------------------------------------------- */
/* J2K / JPT decoder interface */
/* ----------------------------------------------------------------------- */
opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo) {
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;
}
j2k->cinfo = cinfo;
j2k->tile_data = NULL;
return j2k;
}
void j2k_destroy_decompress(opj_j2k_t *j2k) {
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);
}
void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters) {
if(j2k && parameters) {
/* create and initialize the coding parameters structure */
opj_cp_t *cp = (opj_cp_t*) opj_calloc(1, sizeof(opj_cp_t));
cp->reduce = parameters->cp_reduce;
cp->layer = parameters->cp_layer;
cp->limit_decoding = parameters->cp_limit_decoding;
#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 */
/* keep a link to cp so that we can destroy it later in j2k_destroy_decompress */
j2k->cp = cp;
}
}
void j2k_setup_decoder_v2(opj_j2k_v2_t *j2k, opj_dparameters_t *parameters)
{
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
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;
#endif /* USE_JPWL */
}
}
opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info) {
opj_image_t *image = NULL;
opj_common_ptr cinfo = j2k->cinfo;
j2k->cio = cio;
j2k->cstr_info = cstr_info;
if (cstr_info)
memset(cstr_info, 0, sizeof(opj_codestream_info_t));
/* 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);
#ifdef USE_JPWL
/* we try to honor JPWL correction power */
if (j2k->cp->correct) {
int orig_pos = cio_tell(cio);
opj_bool status;
/* 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) {
opj_event_msg(cinfo, EVT_ERROR,
"JPWL: possible bad marker %x at %d\n",
id, cio_tell(cio) - 2);
if (!JPWL_ASSUME) {
opj_image_destroy(image);
opj_event_msg(cinfo, EVT_ERROR, "JPWL: giving up\n");
return 0;
}
/* we try to correct */
id = id | 0xff00;
cio_seek(cio, cio_tell(cio) - 2);
cio_write(cio, id, 2);
opj_event_msg(cinfo, EVT_WARNING, "- trying to adjust this\n"
"- setting marker to %x\n",
id);
}
}
#endif /* USE_JPWL */
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);
/* Check if the marker is known*/
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;
}
/* 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;
}
if (e->handler) {
(*e->handler)(j2k);
}
if (j2k->state & J2K_STATE_ERR)
return NULL;
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;
}
/*
* Read a JPT-stream and decode file
*
*/
opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info) {
opj_image_t *image = NULL;
opj_jpt_msg_header_t header;
int position;
opj_common_ptr cinfo = j2k->cinfo;
OPJ_ARG_NOT_USED(cstr_info);
j2k->cio = cio;
/* create an empty image */
image = opj_image_create0();
j2k->image = image;
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;
}
/* ----------------------------------------------------------------------- */
/* J2K encoder interface */
/* ----------------------------------------------------------------------- */
opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo) {
opj_j2k_t *j2k = (opj_j2k_t*) opj_calloc(1, sizeof(opj_j2k_t));
if(j2k) {
j2k->cinfo = cinfo;
}
return j2k;
}
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;
}
void j2k_destroy_compress(opj_j2k_t *j2k) {
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);
}
void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image) {
int i, j, tileno, numpocs_tile;
opj_cp_t *cp = NULL;
if(!j2k || !parameters || ! image) {
return;
}
/* create and initialize the coding parameters structure */
cp = (opj_cp_t*) opj_calloc(1, sizeof(opj_cp_t));
/* 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
*/
cp->cinema = parameters->cp_cinema;
cp->max_comp_size = parameters->max_comp_size;
cp->rsiz = parameters->cp_rsiz;
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;
}
if(parameters->tp_on){
cp->tp_flag = parameters->tp_flag;
cp->tp_on = 1;
}
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);
}
#ifdef USE_JPWL
/*
calculate JPWL encoding parameters
*/
if (parameters->jpwl_epc_on) {
int i;
/* set JPWL on */
cp->epc_on = OPJ_TRUE;
cp->info_on = OPJ_FALSE; /* no informative technique */
/* set EPB on */
if ((parameters->jpwl_hprot_MH > 0) || (parameters->jpwl_hprot_TPH[0] > 0)) {
cp->epb_on = OPJ_TRUE;
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)) {
cp->esd_on = OPJ_TRUE;
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 */
cp->red_on = OPJ_FALSE;
} else {
cp->epc_on = OPJ_FALSE;
}
#endif /* USE_JPWL */
/* initialize the mutiple tiles */
/* ---------------------------- */
cp->tcps = (opj_tcp_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tcp_t));
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++) {
if(cp->cinema){
if (cp->fixed_quality) {
tcp->distoratio[j] = parameters->tcp_distoratio[j];
}
tcp->rates[j] = parameters->tcp_rates[j];
}else{
if (cp->fixed_quality) { /* add fixed_quality */
tcp->distoratio[j] = parameters->tcp_distoratio[j];
} else {
tcp->rates[j] = parameters->tcp_rates[j];
}
}
}
tcp->csty = parameters->csty;
tcp->prg = parameters->prog_order;
tcp->mct = parameters->tcp_mct;
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;
tcp_poc->prg1 = parameters->POC[numpocs_tile].prg1;
tcp_poc->tile = parameters->POC[numpocs_tile].tile;
numpocs_tile++;
}
}
tcp->numpocs = numpocs_tile -1 ;
}else{
tcp->numpocs = 0;
}
tcp->tccps = (opj_tccp_t*) opj_calloc(image->numcomps, sizeof(opj_tccp_t));
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;
}
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]);
}
} else {
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);
}
}
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;
}
}
}
dwt_calc_explicit_stepsizes(tccp, image->comps[i].prec);
}
}
}
opj_bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
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 >> */
j2k->cstr_info = cstr_info;
if (cstr_info) {
int compno;
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 */
cstr_info->numcomps = image->numcomps;
cstr_info->numlayers = (&cp->tcps[0])->numlayers;
cstr_info->numdecompos = (int*) opj_malloc(image->numcomps * sizeof(int));
for (compno=0; compno < image->numcomps; compno++) {
cstr_info->numdecompos[compno] = (&cp->tcps[0])->tccps->numresolutions - 1;
}
cstr_info->D_max = 0.0; /* ADD Marcela */
cstr_info->main_head_start = cio_tell(cio); /* position of SOC */
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;
}
/* << INDEX */
j2k_write_soc(j2k);
j2k_write_siz(j2k);
j2k_write_cod(j2k);
j2k_write_qcd(j2k);
if(cp->cinema){
for (compno = 1; compno < image->numcomps; compno++) {
j2k_write_coc(j2k, compno);
j2k_write_qcc(j2k, compno);
}
}
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);
}
j2k->totnum_tp = j2k_calculate_tp(cp,image->numcomps,image,j2k);
/* TLM Marker*/
if(cp->cinema){
j2k_write_tlm(j2k);
if (cp->cinema == CINEMA4K_24) {
j2k_write_poc(j2k);
}
}
/* uncomment only for testing JPSEC marker writing */
/* j2k_write_sec(j2k); */
/* INDEX >> */
if(cstr_info) {
cstr_info->main_head_end = cio_tell(cio) - 1;
}
/* << INDEX */
/**** Main Header ENDS here ***/
/* create the tile encoder */
tcd = tcd_create(j2k->cinfo);
/* encode each tile */
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
int pino;
int tilepartno=0;
/* UniPG>> */
int acc_pack_num = 0;
/* <<UniPG */
opj_tcp_t *tcp = &cp->tcps[tileno];
opj_event_msg(j2k->cinfo, EVT_INFO, "tile number %d / %d\n", tileno + 1, cp->tw * cp->th);
j2k->curtileno = tileno;
j2k->cur_tp_num = 0;
tcd->cur_totnum_tp = j2k->cur_totnum_tp[j2k->curtileno];
/* initialisation before tile encoding */
if (tileno == 0) {
tcd_malloc_encode(tcd, image, cp, j2k->curtileno);
} else {
tcd_init_encode(tcd, image, cp, j2k->curtileno);
}
/* INDEX >> */
if(cstr_info) {
cstr_info->tile[j2k->curtileno].start_pos = cio_tell(cio) + j2k->pos_correction;
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;
}
/* << INDEX */
for(pino = 0; pino <= tcp->numpocs; pino++) {
int tot_num_tp;
tcd->cur_pino=pino;
/*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++){
j2k->tp_num = tilepartno;
/* INDEX >> */
if(cstr_info)
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_start_pos =
cio_tell(cio) + j2k->pos_correction;
/* << INDEX */
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);
}
}
/* INDEX >> */
if(cstr_info)
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_header =
cio_tell(cio) + j2k->pos_correction + 1;
/* << INDEX */
j2k_write_sod(j2k, tcd);
/* INDEX >> */
if(cstr_info) {
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_pos =
cio_tell(cio) + j2k->pos_correction - 1;
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_start_pack =
acc_pack_num;
cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_numpacks =
cstr_info->packno - acc_pack_num;
acc_pack_num = cstr_info->packno;
}
/* << INDEX */
j2k->cur_tp_num++;
}
}
if(cstr_info) {
cstr_info->tile[j2k->curtileno].end_pos = cio_tell(cio) + j2k->pos_correction - 1;
}
/*
if (tile->PPT) { // BAD PPT !!!
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");
}
*/
}
/* destroy the tile encoder */
tcd_free_encode(tcd);
tcd_destroy(tcd);
opj_free(j2k->cur_totnum_tp);
j2k_write_eoc(j2k);
if(cstr_info) {
cstr_info->codestream_size = cio_tell(cio) + j2k->pos_correction;
/* UniPG>> */
/* 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 */
/* the first bunch of bytes is not in the codestream */
cstr_info->codestream_size -= cstr_info->main_head_start;
/* <<UniPG */
}
#ifdef USE_JPWL
/*
preparation of JPWL marker segments
*/
if(cp->epc_on) {
/* encode according to JPWL */
jpwl_encode(j2k, cio, image);
}
#endif /* USE_JPWL */
return OPJ_TRUE;
}
static void j2k_add_mhmarker(opj_codestream_info_t *cstr_info, unsigned short int type, int pos, int len)
{
assert(cstr_info != 00);
/* 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++;
}
static void j2k_add_mhmarker_v2(opj_codestream_index_t *cstr_index, OPJ_UINT32 type, OPJ_OFF_T pos, OPJ_UINT32 len)
{
assert(cstr_index != 00);
/* expand the list? */
if ((cstr_index->marknum + 1) > cstr_index->maxmarknum) {
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));
}
/* add the marker */
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;
cstr_index->marknum++;
}
static void j2k_add_tlmarker( int tileno, opj_codestream_info_t *cstr_info, unsigned short int type, int pos, int len)
{
opj_marker_info_t *marker;
assert(cstr_info != 00);
/* 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);
}
marker = &(cstr_info->tile[tileno].marker[cstr_info->tile[tileno].marknum]);
/* add the marker */
marker->type = type;
marker->pos = pos;
marker->len = len;
cstr_info->tile[tileno].marknum++;
}
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)
{
assert(cstr_index != 00);
assert(cstr_index->tile_index != 00);
/* 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;
}
}
/*
* -----------------------------------------------------------------------
* -----------------------------------------------------------------------
* -----------------------------------------------------------------------
*/
/**
* Ends the decompression procedures and possibiliy add data to be read after the
* codestream.
*/
opj_bool j2k_end_decompress(
opj_j2k_v2_t *p_j2k,
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.
*/
opj_bool j2k_read_header( struct opj_stream_private *p_stream,
opj_j2k_v2_t* p_j2k,
opj_image_t** p_image,
struct opj_event_mgr* p_manager )
{
/* preconditions */
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
/* create an empty image header */
p_j2k->m_private_image = opj_image_create0();
if (! p_j2k->m_private_image) {
return OPJ_FALSE;
}
/* customization of the validation */
j2k_setup_decoding_validation(p_j2k);
/* validation of the parameters codec */
if (! j2k_exec(p_j2k, p_j2k->m_validation_list, p_stream,p_manager)) {
opj_image_destroy(p_j2k->m_private_image);
p_j2k->m_private_image = NULL;
return OPJ_FALSE;
}
/* customization of the encoding */
j2k_setup_header_reading(p_j2k);
/* read header */
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;
}
*p_image = opj_image_create0();
if (! (*p_image)) {
return OPJ_FALSE;
}
/* Copy codestream image information to the output image */
opj_copy_image_header(p_j2k->m_private_image, *p_image);
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;
/* preconditions */
assert(p_stream != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
/* We enter in the main header */
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_MHSOC;
/* Try to read the SOC marker, the codestream must begin with SOC marker */
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;
}
/* 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_current_marker,2);
/* Try to read until the SOT is detected */
while (l_current_marker != J2K_MS_SOT) {
/* Check if the current marker ID is valid */
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;
}
/* Get the marker handler from the marker ID */
l_marker_handler = j2k_get_marker_handler(l_current_marker);
/* Manage case where marker is unknown */
if (l_marker_handler->id == J2K_MS_UNK) {
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;
}
if (l_current_marker == J2K_MS_SOT)
break; /* SOT marker is detected main header is completely read */
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;
}
/* Try to read 2 bytes (the marker size) 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 marker size */
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
/* Check if the marker size is compatible with the header data size */
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*)
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) {
return OPJ_FALSE;
}
p_j2k->m_specific_param.m_decoder.m_header_data_size = l_marker_size;
}
/* Try to read the rest of the marker segment 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,l_marker_size,p_manager) != l_marker_size) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n");
return OPJ_FALSE;
}
/* Read the marker segment with the correct marker handler */
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;
}
/* 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 */
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_current_marker,2);
}
opj_event_msg_v2(p_manager, EVT_INFO, "Main header has been correctly decoded.\n");
/* 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;
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.
*/
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 )
{
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);
for (i=0;i<l_nb_proc;++i) {
l_result = l_result && ((*l_procedure) (p_j2k,p_stream,p_manager));
++l_procedure;
}
// and clear the procedure list at the end.
opj_procedure_list_clear(p_procedure_list);
return l_result;
}
/* FIXME DOC*/
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;
opj_image_t * l_image;
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;
/* preconditions */
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
l_image = p_j2k->m_private_image;
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);
/* For each tile */
for (i=0; i<l_nb_tiles; ++i) {
/* keep the tile-compo coding parameters pointer of the current tile coding parameters*/
l_current_tccp = l_tcp->tccps;
/*Copy default coding parameters into the current tile coding parameters*/
memcpy(l_tcp, l_default_tcp, sizeof(opj_tcp_v2_t));
/* Initialize some values of the current tile coding parameters*/
l_tcp->ppt = 0;
l_tcp->ppt_data = 00;
/* Reconnect the tile-compo coding parameters pointer to the current tile coding parameters*/
l_tcp->tccps = l_current_tccp;
/* Get the mct_decoding_matrix of the dflt_tile_cp and copy them into the current tile cp*/
if (l_default_tcp->m_mct_decoding_matrix) {
l_tcp->m_mct_decoding_matrix = (OPJ_FLOAT32*)opj_malloc(l_mct_size);
if (! l_tcp->m_mct_decoding_matrix ) {
return OPJ_FALSE;
}
memcpy(l_tcp->m_mct_decoding_matrix,l_default_tcp->m_mct_decoding_matrix,l_mct_size);
}
/* Get the mct_record of the dflt_tile_cp and copy them into the current tile cp*/
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);
if (! l_tcp->m_mct_records) {
return OPJ_FALSE;
}
memcpy(l_tcp->m_mct_records, l_default_tcp->m_mct_records,l_mct_records_size);
/* Copy the mct record data from dflt_tile_cp to the current tile*/
l_src_mct_rec = l_default_tcp->m_mct_records;
l_dest_mct_rec = l_tcp->m_mct_records;
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) {
return OPJ_FALSE;
}
memcpy(l_dest_mct_rec->m_data,l_src_mct_rec->m_data,l_src_mct_rec->m_data_size);
}
++l_src_mct_rec;
++l_dest_mct_rec;
}
/* Get the mcc_record of the dflt_tile_cp and copy them into the current tile cp*/
l_mcc_records_size = l_default_tcp->m_nb_max_mcc_records * sizeof(opj_simple_mcc_decorrelation_data_t);
l_tcp->m_mcc_records = (opj_simple_mcc_decorrelation_data_t*) opj_malloc(l_mcc_records_size);
if (! l_tcp->m_mcc_records) {
return OPJ_FALSE;
}
memcpy(l_tcp->m_mcc_records,l_default_tcp->m_mcc_records,l_mcc_records_size);
/* Copy the mcc record data from dflt_tile_cp to the current tile*/
l_src_mcc_rec = l_default_tcp->m_mcc_records;
l_dest_mcc_rec = l_tcp->m_mcc_records;
for (j=0;j<l_default_tcp->m_nb_max_mcc_records;++j) {
if (l_src_mcc_rec->m_decorrelation_array) {
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;
}
if (l_src_mcc_rec->m_offset_array) {
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;
}
++l_src_mcc_rec;
++l_dest_mcc_rec;
}
/* Copy all the dflt_tile_compo_cp to the current tile cp */
memcpy(l_current_tccp,l_default_tcp->tccps,l_tccp_size);
/* Move to next tile cp*/
++l_tcp;
}
/* Create the current tile decoder*/
p_j2k->m_tcd = (opj_tcd_v2_t*)tcd_create_v2(OPJ_TRUE); // FIXME why a cast ?
if (! p_j2k->m_tcd ) {
return OPJ_FALSE;
}
if ( !tcd_init_v2(p_j2k->m_tcd, l_image, &(p_j2k->m_cp)) ) {
tcd_destroy_v2(p_j2k->m_tcd);
p_j2k->m_tcd = 00;
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n");
return OPJ_FALSE;
}
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.
*/
const opj_dec_memory_marker_handler_t * j2k_get_marker_handler (OPJ_UINT32 p_id)
{
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)
{
if (p_j2k == 00) {
return;
}
if (p_j2k->m_is_decoder) {
if (p_j2k->m_specific_param.m_decoder.m_default_tcp != 00) {
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;
}
if (p_j2k->m_specific_param.m_decoder.m_header_data != 00) {
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;
}
}
else {
if (p_j2k->m_specific_param.m_encoder.m_encoded_tile_data) {
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;
}
if (p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer) {
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;
}
if (p_j2k->m_specific_param.m_encoder.m_header_tile_data) {
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;
}
}
tcd_destroy_v2(p_j2k->m_tcd);
j2k_cp_destroy(&(p_j2k->m_cp));
memset(&(p_j2k->m_cp),0,sizeof(opj_cp_v2_t));
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;
j2k_destroy_cstr_index(p_j2k->cstr_index);
p_j2k->cstr_index = NULL;
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;
opj_free(p_j2k);
}
void j2k_destroy_cstr_index (opj_codestream_index_t *p_cstr_ind)
{
if (p_cstr_ind) {
if (p_cstr_ind->marker) {
opj_free(p_cstr_ind->marker);
p_cstr_ind->marker = NULL;
}
if (p_cstr_ind->tile_index) {
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;
}
opj_free(p_cstr_ind);
}
}
/**
* 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)
{
if (p_tcp == 00) {
return;
}
if (p_tcp->ppt_buffer != 00) {
opj_free(p_tcp->ppt_buffer);
p_tcp->ppt_buffer = 00;
}
if (p_tcp->tccps != 00) {
opj_free(p_tcp->tccps);
p_tcp->tccps = 00;
}
if (p_tcp->m_mct_coding_matrix != 00) {
opj_free(p_tcp->m_mct_coding_matrix);
p_tcp->m_mct_coding_matrix = 00;
}
if (p_tcp->m_mct_decoding_matrix != 00) {
opj_free(p_tcp->m_mct_decoding_matrix);
p_tcp->m_mct_decoding_matrix = 00;
}
if (p_tcp->m_mcc_records) {
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;
}
if (p_tcp->m_mct_records) {
opj_mct_data_t * l_mct_data = p_tcp->m_mct_records;
OPJ_UINT32 i;
for (i=0;i<p_tcp->m_nb_mct_records;++i) {
if (l_mct_data->m_data) {
opj_free(l_mct_data->m_data);
l_mct_data->m_data = 00;
}
++l_mct_data;
}
opj_free(p_tcp->m_mct_records);
p_tcp->m_mct_records = 00;
}
if (p_tcp->mct_norms != 00) {
opj_free(p_tcp->mct_norms);
p_tcp->mct_norms = 00;
}
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)
{
if (p_tcp->m_data) {
opj_free(p_tcp->m_data);
p_tcp->m_data = NULL;
p_tcp->m_data_size = 0;
}
}
/**
* 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.
*/
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 )
{
OPJ_UINT32 l_current_marker = J2K_MS_SOT;
OPJ_UINT32 l_marker_size;
const opj_dec_memory_marker_handler_t * l_marker_handler = 00;
opj_tcp_v2_t * l_tcp = NULL;
OPJ_UINT32 l_nb_tiles;
/* preconditions */
assert(p_stream != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
/* Reach the End Of Codestream ?*/
if (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_EOC){
l_current_marker = J2K_MS_EOC;
}
/* 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){
return OPJ_FALSE;
}
/* Read into the codestream until reach the EOC or ! can_decode ??? FIXME */
while ( (!p_j2k->m_specific_param.m_decoder.m_can_decode) && (l_current_marker != J2K_MS_EOC) ) {
/* Try to read until the Start Of Data is detected */
while (l_current_marker != J2K_MS_SOD) {
/* Try to read 2 bytes (the marker size) 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 the buffer as the marker size */
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_marker_size,2);
/* Why this condition? FIXME */
if (p_j2k->m_specific_param.m_decoder.m_state & J2K_STATE_TPH){
p_j2k->m_specific_param.m_decoder.m_sot_length -= (l_marker_size + 2);
}
l_marker_size -= 2; /* Subtract the size of the marker ID already read */
/* 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;
}
/* FIXME manage case of unknown marker as in the main header ? */
/* Check if the marker size is compatible with the header data size */
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*)
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) {
return OPJ_FALSE;
}
p_j2k->m_specific_param.m_decoder.m_header_data_size = l_marker_size;
}
/* Try to read the rest of the marker segment 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,l_marker_size,p_manager) != l_marker_size) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n");
return OPJ_FALSE;
}
/* Read the marker segment with the correct marker handler */
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, "Fail to read the current marker segment (%#x)\n", l_current_marker);
return OPJ_FALSE;
}
/* 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 );
/* 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;
}
}
if (p_j2k->m_specific_param.m_decoder.m_skip_data) {
/* Skip the rest of the tile part header*/
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) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n");
return OPJ_FALSE;
}
l_current_marker = J2K_MS_SOD; /* Normally we reached a SOD */
}
else {
/* 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 the buffer as the new marker ID */
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2);
}
}
/* If we didn't skip data before, we need to read the SOD marker*/
if (! p_j2k->m_specific_param.m_decoder.m_skip_data) {
/* Try to read the SOD marker and skip data ? FIXME */
if (! j2k_read_sod_v2(p_j2k, p_stream, p_manager)) {
return OPJ_FALSE;
}
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);
}
}
else {
/* Indicate we will try to read a new tile-part header*/
p_j2k->m_specific_param.m_decoder.m_skip_data = 0;
p_j2k->m_specific_param.m_decoder.m_can_decode = 0;
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPHSOT;
/* 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);
}
}
/* Current marker is the EOC marker ?*/
if (l_current_marker == J2K_MS_EOC) {
if (p_j2k->m_specific_param.m_decoder.m_state != J2K_STATE_EOC ){
p_j2k->m_current_tile_number = 0;
p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_EOC;
}
}
/* FIXME DOC ???*/
if ( ! p_j2k->m_specific_param.m_decoder.m_can_decode) {
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;
while( (p_j2k->m_current_tile_number < l_nb_tiles) && (l_tcp->m_data == 00) ) {
++p_j2k->m_current_tile_number;
++l_tcp;
}
if (p_j2k->m_current_tile_number == l_nb_tiles) {
*p_go_on = OPJ_FALSE;
return OPJ_TRUE;
}
}
/*FIXME ???*/
if (! tcd_init_decode_tile(p_j2k->m_tcd, p_j2k->m_current_tile_number)) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n");
return OPJ_FALSE;
}
opj_event_msg_v2(p_manager, EVT_INFO, "Header of tile %d / %d has been read.\n",
p_j2k->m_current_tile_number, (p_j2k->m_cp.th * p_j2k->m_cp.tw) - 1);
*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);
*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;
p_j2k->m_specific_param.m_decoder.m_state |= 0x0080;// FIXME J2K_DEC_STATE_DATA;
return OPJ_TRUE;
}
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 )
{
OPJ_UINT32 l_current_marker;
OPJ_BYTE l_data [2];
opj_tcp_v2_t * l_tcp;
/* preconditions */
assert(p_stream != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
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) ) {
return OPJ_FALSE;
}
l_tcp = &(p_j2k->m_cp.tcps[p_tile_index]);
if (! l_tcp->m_data) {
j2k_tcp_destroy(l_tcp);
return OPJ_FALSE;
}
if (! tcd_decode_tile_v2( p_j2k->m_tcd,
l_tcp->m_data,
l_tcp->m_data_size,
p_tile_index,
p_j2k->cstr_index) ) {
j2k_tcp_destroy(l_tcp);
p_j2k->m_specific_param.m_decoder.m_state |= 0x8000;//FIXME J2K_DEC_STATE_ERR;
return OPJ_FALSE;
}
if (! tcd_update_tile_data(p_j2k->m_tcd,p_data,p_data_size)) {
return OPJ_FALSE;
}
/* 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);
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);
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) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n");
return OPJ_FALSE;
}
opj_read_bytes(l_data,&l_current_marker,2);
if (l_current_marker == J2K_MS_EOC) {
p_j2k->m_current_tile_number = 0;
p_j2k->m_specific_param.m_decoder.m_state = 0x0100;//FIXME J2K_DEC_STATE_EOC;
}
else if (l_current_marker != J2K_MS_SOT)
{
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short, expected SOT\n");
return OPJ_FALSE;
}
}
return OPJ_TRUE;
}
opj_bool j2k_update_image_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data, opj_image_t* p_output_image)
{
OPJ_UINT32 i,j,k = 0;
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;
opj_tcd_tilecomp_v2_t * l_tilec = 00;
opj_image_t * l_image_src = 00;
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;
l_image_src = p_tcd->image;
l_img_comp_src = l_image_src->comps;
l_img_comp_dest = p_output_image->comps;
for (i=0; i<l_image_src->numcomps; i++) {
/* 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) {
return OPJ_FALSE;
}
}
/* 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;
if (l_remaining) {
++l_size_comp;
}
if (l_size_comp == 3) {
l_size_comp = 4;
}
/*-----*/
/* Current tile component size*/
/*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);
}*/
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;
/*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 );
}*/
/*-----*/
/* 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;
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;
}
}
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;
/*if (i == 0) {
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);
}*/
switch (l_size_comp) {
case 1:
{
OPJ_CHAR * l_src_ptr = (OPJ_CHAR*) p_data;
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 */
}
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 */
}
}
else {
for ( j = 0 ; j < l_height_dest ; ++j ) {
for ( k = 0 ; k < l_width_dest ; ++k) {
*(l_dest_ptr++) = (OPJ_INT32) ((*(l_src_ptr++))&0xff);
}
l_dest_ptr+= l_line_offset_dest;
l_src_ptr += l_line_offset_src;
}
}
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 */
}
break;
case 2:
{
OPJ_INT16 * l_src_ptr = (OPJ_INT16 *) p_data;
l_src_ptr += l_start_offset_src;
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++) = *(l_src_ptr++);
}
l_dest_ptr+= l_line_offset_dest;
l_src_ptr += l_line_offset_src ;
}
}
else {
for (j=0;j<l_height_dest;++j) {
for (k=0;k<l_width_dest;++k) {
*(l_dest_ptr++) = (*(l_src_ptr++))&0xffff;
}
l_dest_ptr+= l_line_offset_dest;
l_src_ptr += l_line_offset_src ;
}
}
l_src_ptr += l_end_offset_src;
p_data = (OPJ_BYTE*) l_src_ptr;
}
break;
case 4:
{
OPJ_INT32 * l_src_ptr = (OPJ_INT32 *) p_data;
l_src_ptr += l_start_offset_src;
for (j=0;j<l_height_dest;++j) {
for (k=0;k<l_width_dest;++k) {
*(l_dest_ptr++) = (*(l_src_ptr++));
}
l_dest_ptr+= l_line_offset_dest;
l_src_ptr += l_line_offset_src ;
}
l_src_ptr += l_end_offset_src;
p_data = (OPJ_BYTE*) l_src_ptr;
}
break;
}
++l_img_comp_dest;
++l_img_comp_src;
++l_tilec;
}
return OPJ_TRUE;
}
/**
* 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.
*/
opj_bool j2k_set_decode_area( opj_j2k_v2_t *p_j2k,
opj_image_t* p_image,
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 )
{
opj_cp_v2_t * l_cp = &(p_j2k->m_cp);
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;
/* 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");
return OPJ_FALSE;
}
if ( !p_start_x && !p_start_y && !p_end_x && !p_end_y){
opj_event_msg_v2(p_manager, EVT_INFO, "No decoded area parameters, set the decoded area to the whole image\n");
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;
}
/* ----- */
/* Check if the positions provided by the user are correct */
/* Left */
if (p_start_x > l_image->x1 ) {
opj_event_msg_v2(p_manager, EVT_ERROR,
"Left position of the decoded area (region_x0=%d) is outside the image area (Xsiz=%d).\n",
p_start_x, l_image->x1);
return OPJ_FALSE;
}
else if (p_start_x < l_image->x0){
opj_event_msg_v2(p_manager, EVT_WARNING,
"Left position of the decoded area (region_x0=%d) is outside the image area (XOsiz=%d).\n",
p_start_x, l_image->x0);
p_j2k->m_specific_param.m_decoder.m_start_tile_x = 0;
p_image->x0 = l_image->x0;
}
else {
p_j2k->m_specific_param.m_decoder.m_start_tile_x = (p_start_x - l_cp->tx0) / l_cp->tdx;
p_image->x0 = p_start_x;
}
/* Up */
if (p_start_y > l_image->y1){
opj_event_msg_v2(p_manager, EVT_ERROR,
"Up position of the decoded area (region_y0=%d) is outside the image area (Ysiz=%d).\n",
p_start_y, l_image->y1);
return OPJ_FALSE;
}
else if (p_start_y < l_image->y0){
opj_event_msg_v2(p_manager, EVT_WARNING,
"Up position of the decoded area (region_y0=%d) is outside the image area (YOsiz=%d).\n",
p_start_y, l_image->y0);
p_j2k->m_specific_param.m_decoder.m_start_tile_y = 0;
p_image->y0 = l_image->y0;
}
else {
p_j2k->m_specific_param.m_decoder.m_start_tile_y = (p_start_y - l_cp->ty0) / l_cp->tdy;
p_image->y0 = p_start_y;
}
/* Right */
if (p_end_x < l_image->x0) {
opj_event_msg_v2(p_manager, EVT_ERROR,
"Right position of the decoded area (region_x1=%d) is outside the image area (XOsiz=%d).\n",
p_end_x, l_image->x0);
return OPJ_FALSE;
}
else if (p_end_x > l_image->x1) {
opj_event_msg_v2(p_manager, EVT_WARNING,
"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;
}
else {
p_j2k->m_specific_param.m_decoder.m_end_tile_x = int_ceildiv((p_end_x - l_cp->tx0), l_cp->tdx);
p_image->x1 = p_end_x;
}
/* Bottom */
if (p_end_y < l_image->y0) {
opj_event_msg_v2(p_manager, EVT_ERROR,
"Bottom position of the decoded area (region_y1=%d) is outside the image area (YOsiz=%d).\n",
p_end_y, l_image->y0);
return OPJ_FALSE;
}
if (p_end_y > l_image->y1){
opj_event_msg_v2(p_manager, EVT_WARNING,
"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;
}
else{
p_j2k->m_specific_param.m_decoder.m_end_tile_y = int_ceildiv((p_end_y - l_cp->ty0), l_cp->tdy);
p_image->y1 = p_end_y;
}
/* ----- */
p_j2k->m_specific_param.m_decoder.m_discard_tiles = 1;
l_img_comp = p_image->comps;
for (it_comp=0; it_comp < p_image->numcomps; ++it_comp)
{
OPJ_INT32 l_h,l_w;
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);
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){
opj_event_msg_v2(p_manager, EVT_ERROR,
"Size x of the decoded component image is incorrect (comp[%d].w=%d).\n",
it_comp, l_w);
return OPJ_FALSE;
}
l_img_comp->w = l_w;
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){
opj_event_msg_v2(p_manager, EVT_ERROR,
"Size y of the decoded component image is incorrect (comp[%d].h=%d).\n",
it_comp, l_h);
return OPJ_FALSE;
}
l_img_comp->h = l_h;
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);
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));
if (!l_j2k) {
return 00;
}
memset(l_j2k,0,sizeof(opj_j2k_v2_t));
l_j2k->m_is_decoder = 1;
l_j2k->m_cp.m_is_decoder = 1;
l_j2k->m_specific_param.m_decoder.m_default_tcp = (opj_tcp_v2_t*) opj_malloc(sizeof(opj_tcp_v2_t));
if (!l_j2k->m_specific_param.m_decoder.m_default_tcp) {
j2k_destroy(l_j2k);
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);
if (! l_j2k->m_specific_param.m_decoder.m_header_data) {
j2k_destroy(l_j2k);
return 00;
}
l_j2k->m_specific_param.m_decoder.m_header_data_size = J2K_DEFAULT_HEADER_SIZE;
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 ;
/* 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);
return NULL;
}
l_j2k->cstr_index->marker = (opj_marker_info_t*) opj_malloc(100 * sizeof(opj_marker_info_t));
*/
/* validation list creation */
l_j2k->m_validation_list = opj_procedure_list_create();
if (! l_j2k->m_validation_list) {
j2k_destroy(l_j2k);
return 00;
}
/* execution list creation */
l_j2k->m_procedure_list = opj_procedure_list_create();
if (! l_j2k->m_procedure_list) {
j2k_destroy(l_j2k);
return 00;
}
return l_j2k;
}
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;
cstr_index->marknum = 0;
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;
}
/**
* 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;
/* preconditions */
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_header_data != 00);
l_cp = &(p_j2k->m_cp);
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;
/* precondition again */
assert(compno < p_j2k->m_private_image->numcomps);
l_tccp = &l_tcp->tccps[compno];
l_current_ptr = p_header_data;
/* make sure room is sufficient */
if (*p_header_size < 5) {
opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading SPCod SPCoc element\n");
return OPJ_FALSE;
}
opj_read_bytes(l_current_ptr, &l_tccp->numresolutions ,1); /* SPcox (D) */
++l_tccp->numresolutions; /* tccp->numresolutions = read() + 1 */
++l_current_ptr;
/* If user wants to remove more resolutions than the codestream contains, return error */
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.\nThe number of resolutions to remove is higher than the number "
"of resolutions of this component\nModify 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;
/* use custom precinct size ? */
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;
}
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;
}
*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;
}
}
#ifdef WIP_REMOVE_MSD
/* INDEX >> */
if (p_j2k->cstr_info && compno == 0) {
OPJ_UINT32 l_data_size = l_tccp->numresolutions * sizeof(OPJ_UINT32);
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;
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 */
#endif
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;
opj_tccp_t *l_ref_tccp = NULL, *l_copied_tccp = NULL;
OPJ_UINT32 l_prc_size;
/* preconditions */
assert(p_j2k != 00);
l_cp = &(p_j2k->m_cp);
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;
l_ref_tccp = &l_tcp->tccps[0];
l_copied_tccp = l_ref_tccp + 1;
l_prc_size = l_ref_tccp->numresolutions * sizeof(OPJ_UINT32);
for (i=1; i<p_j2k->m_private_image->numcomps; ++i) {
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;
OPJ_UINT32 l_tmp, l_num_band;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_header_data != 00);
l_cp = &(p_j2k->m_cp);
// 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;
// precondition again
assert(p_comp_no < p_j2k->m_private_image->numcomps);
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;
}
else {
l_num_band = (l_tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) ?
(*p_header_size) :
(*p_header_size) / 2;
if( l_num_band > J2K_MAXBANDS ) {
opj_event_msg_v2(p_manager, EVT_WARNING, "While reading CCP_QNTSTY element inside QCD or QCC marker segment, "
"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);
//return OPJ_FALSE;
}
}
#ifdef USE_JPWL
if (l_cp->correct) {
/* if JPWL is on, we check whether there are too many subbands */
if ((l_num_band < 0) || (l_num_band >= J2K_MAXBANDS)) {
opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: bad number of subbands in Sqcx (%d)\n",
l_num_band);
if (!JPWL_ASSUME) {
opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n");
return OPJ_FALSE;
}
/* we try to correct */
l_num_band = 1;
opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust them\n"
"- setting number of bands to %d => HYPOTHESIS!!!\n",
l_num_band);
};
};
#endif /* USE_JPWL */
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;
if (l_band_no < J2K_MAXBANDS){
l_tccp->stepsizes[l_band_no].expn = l_tmp>>3;
l_tccp->stepsizes[l_band_no].mant = 0;
}
}
*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;
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;
}
}
*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;
/* preconditions */
assert(p_j2k != 00);
l_cp = &(p_j2k->m_cp);
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;
l_ref_tccp = &l_tcp->tccps[0];
l_copied_tccp = l_ref_tccp + 1;
l_size = J2K_MAXBANDS * sizeof(opj_stepsize_t);
for (i=1;i<p_j2k->m_private_image->numcomps;++i) {
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;
}
}
/**
* 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){
if (p_j2k->m_private_image)
j2k_dump_image_header(p_j2k->m_private_image, 0, out_stream);
}
/* 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;
OPJ_UINT32 it_marker, it_tile, it_tile_part;
fprintf(out_stream, "Codestream index from main header: {\n");
fprintf(out_stream, "\t Main header start position=%" OPJ_OFF_F "d\n"
"\t Main header end position=%" OPJ_OFF_F "d\n",
cstr_index->main_head_start, cstr_index->main_head_end);
fprintf(out_stream, "\t Marker list: {\n");
if (cstr_index->marker){
for (it_marker=0; it_marker < cstr_index->marknum ; it_marker++){
fprintf(out_stream, "\t\t type=%#x, pos=%" OPJ_OFF_F "d, len=%d\n",
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++){
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",
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++){
fprintf(out_stream, "\t\t type=%#x, pos=%" OPJ_OFF_F "d, len=%d\n",
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");
}
fprintf(out_stream,"}\n");
}
/**
* 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;
OPJ_INT32 numcomps = p_j2k->m_private_image->numcomps;
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.
*/
void j2k_dump_image_header(opj_image_t* img_header, opj_bool dev_dump_flag, FILE* out_stream)
{
char tab[2];
if (dev_dump_flag){
fprintf(stdout, "[DEV] Dump an image_header struct {\n");
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.
*/
void j2k_dump_image_comp_header(opj_image_comp_t* comp_header, opj_bool dev_dump_flag, FILE* out_stream)
{
char tab[3];
if (dev_dump_flag){
fprintf(stdout, "[DEV] Dump an image_comp_header struct {\n");
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;
OPJ_UINT16 numcomps = p_j2k->m_private_image->numcomps;
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));
cstr_info->nbcomps = p_j2k->m_private_image->numcomps;
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;
cstr_info->tile_info = NULL; /* Not fill from the main header*/
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;
cstr_info->m_default_tile_info.tccp_info = (opj_tccp_info_t*) opj_calloc(cstr_info->nbcomps, sizeof(opj_tccp_info_t));
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)
{
memcpy(l_tccp_info->prch, l_tccp->prch, l_tccp->numresolutions);
memcpy(l_tccp_info->prcw, l_tccp->prcw, l_tccp->numresolutions);
}
/* 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));
if (!l_cstr_index->marker){
opj_free( l_cstr_index);
return NULL;
}
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;
}
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;
}
}
return l_cstr_index;
}
opj_bool j2k_allocate_tile_element_cstr_index(opj_j2k_v2_t *p_j2k)
{
OPJ_UINT32 it_tile=0;
p_j2k->cstr_index->nb_of_tiles = p_j2k->m_cp.tw * p_j2k->m_cp.th;
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;
}
return OPJ_TRUE;
}
/**
* 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;
/*Allocate and initialize some elements of codestrem index*/
if (!j2k_allocate_tile_element_cstr_index(p_j2k)){
opj_free(l_current_data);
return OPJ_FALSE;
}
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) {
opj_free(l_current_data);
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;
}
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);
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 + 1);
}
opj_free(l_current_data);
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 */
}
/*
* 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)
{
if (!j2k_allocate_tile_element_cstr_index(p_j2k)){
opj_free(l_current_data);
return OPJ_FALSE;
}
}
/* 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) {
/* the index for this tile has not been built,
* so move to the last SOT read */
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) {
opj_free(l_current_data);
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;
}
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);
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 */
}
/**
* 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;
if (!p_image)
return OPJ_FALSE;
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);
/* customization of the decoding */
j2k_setup_decoding(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;
p_image->comps[compno].data = p_j2k->m_output_image->comps[compno].data;
p_j2k->m_output_image->comps[compno].data = NULL;
}
return OPJ_TRUE;
}
/**
* 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) {
opj_event_msg_v2(p_manager, EVT_ERROR, "We need an image previously created.\n");
return OPJ_FALSE;
}
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);
return OPJ_FALSE;
}
/* 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;
if (p_image->x0 < p_j2k->m_private_image->x0)
p_image->x0 = p_j2k->m_private_image->x0;
p_image->x1 = (l_tile_x + 1) * p_j2k->m_cp.tdx + p_j2k->m_cp.tx0;
if (p_image->x1 > p_j2k->m_private_image->x1)
p_image->x1 = p_j2k->m_private_image->x1;
p_image->y0 = l_tile_y * p_j2k->m_cp.tdy + p_j2k->m_cp.ty0;
if (p_image->y0 < p_j2k->m_private_image->y0)
p_image->y0 = p_j2k->m_private_image->y0;
p_image->y1 = (l_tile_y + 1) * p_j2k->m_cp.tdy + p_j2k->m_cp.ty0;
if (p_image->y1 > p_j2k->m_private_image->y1)
p_image->y1 = p_j2k->m_private_image->y1;
l_img_comp = p_image->comps;
for (compno=0; compno < p_image->numcomps; ++compno)
{
OPJ_INT32 l_comp_x1, l_comp_y1;
l_img_comp->factor = p_j2k->m_private_image->comps[compno].factor;
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);
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);
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;
}
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;
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){
opj_event_msg_v2(p_manager, EVT_ERROR, "Resolution factor is greater than the maximum resolution in the component.\n");
return OPJ_FALSE;
}
p_j2k->m_private_image->comps[it_comp].factor = res_factor;
}
return OPJ_TRUE;
}
}
}
}
return OPJ_FALSE;
}
Reference in New Issue View Git Blame Copy Permalink