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openjpeg/libopenjpeg/j2k.c

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/*
* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2007, Professor Benoit Macq
* 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) 2006-2007, Parvatha Elangovan
* Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@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 "j2k.h"
#include "opj_malloc.h"
#include "opj_includes.h"
#include "pi.h"
#include "event.h"
#include "cio.h"
#include "int.h"
#include "tcd.h"
#include "function_list.h"
#include "invert.h"
#include "dwt.h"
#include "mct.h"
#include "image.h"
/** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */
/*@{*/
/***************************************************************************
********************** TYPEDEFS *******************************************
***************************************************************************/
/**
* Correspondance prog order <-> string representation
*/
typedef struct j2k_prog_order
{
OPJ_PROG_ORDER enum_prog;
OPJ_CHAR str_prog[5];
}
j2k_prog_order_t;
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 */
bool (*handler) (
opj_j2k_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;
/** @name Local static functions */
/*@{*/
/**
* Writes a SPCod or SPCoc element, i.e. the coding style of a given component of a tile.
*
* @param p_comp_no the component number to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*
*/
static bool j2k_write_SPCod_SPCoc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_header_size,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_SPCod_SPCoc(
opj_j2k_t *p_j2k,
OPJ_UINT32 compno,
OPJ_BYTE * p_header_data,
OPJ_UINT32 * p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Gets the size taken by writting a SPCod or SPCoc for the given tile and component.
*
* @param p_tile_no the tile indix.
* @param p_comp_no the component being outputted.
* @param p_j2k the J2K codec.
*
* @return the number of bytes taken by the SPCod element.
*/
static OPJ_UINT32 j2k_get_SPCod_SPCoc_size (
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no
);
/**
* Writes 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 bool j2k_write_SQcd_SQcc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_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 bool j2k_read_SQcd_SQcc(
opj_j2k_t *p_j2k,
OPJ_UINT32 compno,
OPJ_BYTE * p_header_data,
OPJ_UINT32 * p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Updates the Tile Length Marker.
*/
static void j2k_update_tlm (
opj_j2k_t * p_j2k,
OPJ_UINT32 p_tile_part_size);
/**
* Gets the size taken by writting SQcd or SQcc element, i.e. the quantization values of a band in the QCD or QCC.
*
* @param p_tile_no the tile indix.
* @param p_comp_no the component being outputted.
* @param p_j2k the J2K codec.
*
* @return the number of bytes taken by the SPCod element.
*/
static OPJ_UINT32 j2k_get_SQcd_SQcc_size (
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no
);
/**
* 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_t *p_j2k
);
/**
* Writes the SOC marker (Start Of Codestream)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_soc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_soc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the SIZ marker (image and tile size)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_siz(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the CBD-MCT-MCC-MCO markers (Multi components transform)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_mct_data_group(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_siz (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the COM marker (comment)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_com(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_com (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the COD marker (Coding style default)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_cod(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_cod (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the COC marker (Coding style component)
*
* @param p_comp_number the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_coc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_number,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the COC marker (Coding style component)
*
* @param p_comp_no the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static void j2k_write_coc_in_memory(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
struct opj_event_mgr * p_manager
);
/**
* Gets the maximum size taken by a coc.
*
* @param p_j2k the jpeg2000 codec to use.
*/
static OPJ_UINT32 j2k_get_max_coc_size(opj_j2k_t *p_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 bool j2k_read_coc (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the QCD marker (quantization default)
*
* @param p_comp_number the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_qcd(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_qcd (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the QCC marker (quantization component)
*
* @param p_comp_no the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_qcc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_no,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the QCC marker (quantization component)
*
* @param p_comp_no the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static void j2k_write_qcc_in_memory(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
struct opj_event_mgr * p_manager
);
/**
* Gets the maximum size taken by a qcc.
*/
static OPJ_UINT32 j2k_get_max_qcc_size (opj_j2k_t *p_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 bool j2k_read_qcc(
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager);
/**
* Writes the POC marker (Progression Order Change)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_poc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the updated tlm.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_updated_tlm(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the POC marker (Progression Order Change)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static void j2k_write_poc_in_memory(
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
struct opj_event_mgr * p_manager
);
/**
* Gets the maximum size taken by the writting of a POC.
*/
static OPJ_UINT32 j2k_get_max_poc_size(opj_j2k_t *p_j2k);
/**
* Gets the maximum size taken by the toc headers of all the tile parts of any given tile.
*/
static OPJ_UINT32 j2k_get_max_toc_size (opj_j2k_t *p_j2k);
/**
* Gets the maximum size taken by the headers of the SOT.
*
* @param p_j2k the jpeg2000 codec to use.
*/
static OPJ_UINT32 j2k_get_specific_header_sizes(opj_j2k_t *p_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 bool j2k_read_poc (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_crg (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_tlm (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_plm (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_plt (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_ppm (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_ppt (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the TLM marker (Tile Length Marker)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_tlm(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the SOT marker (Start of tile-part)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_sot(
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
const struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_sot (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the SOD marker (Start of data)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_sod(
opj_j2k_t *p_j2k,
struct opj_tcd * p_tile_coder,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
OPJ_UINT32 p_total_data_size,
const struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_sod (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the RGN marker (Region Of Interest)
*
* @param p_tile_no the tile to output
* @param p_comp_no the component to output
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_rgn(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_rgn (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
) ;
/**
* Writes the EOC marker (End of Codestream)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_eoc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
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_quantization_parameters(
opj_j2k_t *p_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 bool j2k_read_eoc (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
) ;
/**
* Inits the Info
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_init_info(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_unk (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Ends the encoding, i.e. frees memory.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_end_encoding(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes the CBD marker (Component bit depth definition)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_cbd(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* 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 bool j2k_read_cbd (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager);
/**
* Writes the MCT marker (Multiple Component Transform)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_mct_record(
opj_j2k_t *p_j2k,
opj_mct_data_t * p_mct_record,
struct opj_stream_private *p_stream,
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 bool j2k_read_mct (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the MCC marker (Multiple Component Collection)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_mcc_record(
opj_j2k_t *p_j2k,
struct opj_simple_mcc_decorrelation_data * p_mcc_record,
struct opj_stream_private *p_stream,
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 bool j2k_read_mcc (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the MCO marker (Multiple component transformation ordering)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_mco(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
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 bool j2k_read_mco (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
);
/**
* Writes the image components.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_image_components(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes regions of interests.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_regions(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Writes EPC ????
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_write_epc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* Checks the progression order changes values. Tells of the poc given as input are valid.
* A nice message is outputted at errors.
*
* @param p_pocs the progression order changes.
* @param p_nb_pocs the number of progression order changes.
* @param p_nb_resolutions the number of resolutions.
* @param numcomps the number of components
* @param numlayers the number of layers.
*
* @return true if the pocs are valid.
*/
static bool j2k_check_poc_val(
const opj_poc_t *p_pocs,
OPJ_UINT32 p_nb_pocs,
OPJ_UINT32 p_nb_resolutions,
OPJ_UINT32 numcomps,
OPJ_UINT32 numlayers,
opj_event_mgr_t * p_manager);
/**
* Gets the number of tile parts used for the given change of progression (if any) and the given tile.
*
* @param cp the coding parameters.
* @param pino the offset of the given poc (i.e. its position in the coding parameter).
* @param tileno the given tile.
*
* @return the number of tile parts.
*/
static OPJ_UINT32 j2k_get_num_tp(
opj_cp_t *cp,
OPJ_UINT32 pino,
OPJ_UINT32 tileno);
/**
* Calculates the total number of tile parts needed by the encoder to
* encode such an image. If not enough memory is available, then the function return false.
*
* @param p_nb_tiles pointer that will hold the number of tile parts.
* @param cp the coding parameters for the image.
* @param image the image to encode.
* @param p_j2k the p_j2k encoder.
* @param p_manager the user event manager.
*
* @return true if the function was successful, false else.
*/
static bool j2k_calculate_tp(
opj_j2k_t *p_j2k,
opj_cp_t *cp,
OPJ_UINT32 * p_nb_tiles,
opj_image_t *image,
opj_event_mgr_t * p_manager);
static bool j2k_write_first_tile_part (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
OPJ_UINT32 p_total_data_size,
opj_stream_private_t *p_stream,
struct opj_event_mgr * p_manager
);
static bool j2k_write_all_tile_parts(
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
OPJ_UINT32 p_total_data_size,
opj_stream_private_t *p_stream,
struct opj_event_mgr * 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_t *p_tcp);
static void j2k_get_tile_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data);
/**
* Destroys a coding parameter structure.
*
* @param p_cp the coding parameter to destroy.
*/
static void j2k_cp_destroy (opj_cp_t *p_cp);
/**
* 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_encoding_validation (opj_j2k_t *p_j2k);
/**
* 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_t *p_j2k);
/**
* 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_end_compress (opj_j2k_t *p_j2k);
/**
* Creates a tile-coder decoder.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_create_tcd(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * 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 bool j2k_exec (
opj_j2k_t * p_j2k,
opj_procedure_list_t * p_procedure_list,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
/**
* Updates the rates of the tcp.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_update_rates(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
/**
* The default encoding 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.
*/
bool j2k_encoding_validation (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
/**
* The read header procedure.
*/
bool j2k_read_header_procedure(
opj_j2k_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.
*/
bool j2k_decoding_validation (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
/**
* Reads the tiles.
*/
bool j2k_decode_tiles (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager);
/**
* The mct encoding validation procedure.
*
* @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.
*/
bool j2k_mct_validation (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
/**
* Builds the tcd decoder to use to decode tile.
*/
bool j2k_build_decoder (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
/**
* Builds the tcd encoder to use to encode tile.
*/
bool j2k_build_encoder (
opj_j2k_t * p_j2k,
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.
*/
bool j2k_copy_default_tcp_and_create_tcd(
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
/**
* Destroys the memory associated with the decoding of headers.
*/
bool j2k_destroy_header_memory (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
/**
* Sets up the procedures to do on writting header. Developpers wanting to extend the library can add their own writting procedures.
*/
void j2k_setup_header_writting (opj_j2k_t *p_j2k);
/**
* 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_t *p_j2k);
/**
* Writes a tile.
* @param p_j2k the jpeg2000 codec.
* @param p_stream the stream to write data to.
* @param p_manager the user event manager.
*/
static bool j2k_post_write_tile (
opj_j2k_t * p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 p_data_size,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
static bool j2k_pre_write_tile (
opj_j2k_t * p_j2k,
OPJ_UINT32 p_tile_index,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
);
static bool j2k_update_image_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data);
static bool j2k_add_mct(opj_tcp_t * p_tcp,opj_image_t * p_image, OPJ_UINT32 p_index);
/**
* Gets the offset of the header.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
static bool j2k_get_end_header(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
);
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);
/*@}*/
/*@}*/
/* ----------------------------------------------------------------------- */
/****************************************************************************
********************* CONSTANTS ********************************************
****************************************************************************/
/**
* List of progression orders.
*/
const j2k_prog_order_t j2k_prog_order_list [] =
{
{CPRL, "CPRL"},
{LRCP, "LRCP"},
{PCRL, "PCRL"},
{RLCP, "RLCP"},
{RPCL, "RPCL"},
{(OPJ_PROG_ORDER)-1, ""}
};
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
};
/*const opj_dec_stream_marker_handler_t j2k_stream_marker_handler_tab[] =
{
{J2K_MS_SOC, J2K_DEC_STATE_MHSOC, j2k_read_soc},
{J2K_MS_SOD, J2K_DEC_STATE_TPH, j2k_read_sod},
{J2K_MS_EOC, J2K_DEC_STATE_TPHSOT, j2k_read_eoc},
{J2K_MS_SOP, 0, 0},
#ifdef USE_JPWL
{J2K_MS_EPC, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_epc},
{J2K_MS_EPB, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_epb},
{J2K_MS_ESD, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_esd},
{J2K_MS_RED, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_red},
#endif
#ifdef USE_JPSEC
{J2K_MS_SEC, J2K_DEC_STATE_MH, j2k_read_sec},
{J2K_MS_INSEC, 0, j2k_read_insec},
#endif
{0, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_unk}
};*/
const opj_dec_memory_marker_handler_t j2k_memory_marker_handler_tab [] =
{
{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},
#ifdef USE_JPWL
{J2K_MS_EPC, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_epc},
{J2K_MS_EPB, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_epb},
{J2K_MS_ESD, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_esd},
{J2K_MS_RED, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_red},
#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 */
};
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 gicen progression order.
*/
const OPJ_CHAR * j2k_convert_progression_order(OPJ_PROG_ORDER p_prg_order)
{
const j2k_prog_order_t *po;
for
(po = j2k_prog_order_list; po->enum_prog != -1; ++po )
{
if
(po->enum_prog == p_prg_order)
{
return po->str_prog;
}
}
return po->str_prog;
}
/**
* Checks the progression order changes values. Tells if the poc given as input are valid.
*
* @param p_pocs the progression order changes.
* @param p_nb_pocs the number of progression order changes.
* @param p_nb_resolutions the number of resolutions.
* @param numcomps the number of components
* @param numlayers the number of layers.
* @param p_manager the user event manager.
*
* @return true if the pocs are valid.
*/
bool j2k_check_poc_val(const opj_poc_t *p_pocs, OPJ_UINT32 p_nb_pocs, OPJ_UINT32 p_nb_resolutions, OPJ_UINT32 p_num_comps, OPJ_UINT32 p_num_layers, opj_event_mgr_t * p_manager)
{
OPJ_UINT32* packet_array;
OPJ_UINT32 index , resno, compno, layno;
OPJ_UINT32 i;
OPJ_UINT32 step_c = 1;
OPJ_UINT32 step_r = p_num_comps * step_c;
OPJ_UINT32 step_l = p_nb_resolutions * step_r;
bool loss = false;
OPJ_UINT32 layno0 = 0;
packet_array = (OPJ_UINT32*) opj_calloc(step_l * p_num_layers, sizeof(OPJ_UINT32));
if
(packet_array == 00)
{
opj_event_msg(p_manager , EVT_ERROR, "Not enough memory for checking the poc values.\n");
return false;
}
memset(packet_array,0,step_l * p_num_layers* sizeof(OPJ_UINT32));
if
(p_nb_pocs == 0)
{
return true;
}
index = step_r * p_pocs->resno0;
// take each resolution for each poc
for
(resno = p_pocs->resno0 ; resno < p_pocs->resno1 ; ++resno)
{
OPJ_UINT32 res_index = index + p_pocs->compno0 * step_c;
// take each comp of each resolution for each poc
for
(compno = p_pocs->compno0 ; compno < p_pocs->compno1 ; ++compno)
{
OPJ_UINT32 comp_index = res_index + layno0 * step_l;
// and finally take each layer of each res of ...
for
(layno = layno0; layno < p_pocs->layno1 ; ++layno)
{
//index = step_r * resno + step_c * compno + step_l * layno;
packet_array[comp_index] = 1;
comp_index += step_l;
}
res_index += step_c;
}
index += step_r;
}
++p_pocs;
// iterate through all the pocs
for
(i = 1; i < p_nb_pocs ; ++i)
{
OPJ_UINT32 l_last_layno1 = (p_pocs-1)->layno1 ;
layno0 = (p_pocs->layno1 > l_last_layno1)? l_last_layno1 : 0;
index = step_r * p_pocs->resno0;
// take each resolution for each poc
for
(resno = p_pocs->resno0 ; resno < p_pocs->resno1 ; ++resno)
{
OPJ_UINT32 res_index = index + p_pocs->compno0 * step_c;
// take each comp of each resolution for each poc
for
(compno = p_pocs->compno0 ; compno < p_pocs->compno1 ; ++compno)
{
OPJ_UINT32 comp_index = res_index + layno0 * step_l;
// and finally take each layer of each res of ...
for
(layno = layno0; layno < p_pocs->layno1 ; ++layno)
{
//index = step_r * resno + step_c * compno + step_l * layno;
packet_array[comp_index] = 1;
comp_index += step_l;
}
res_index += step_c;
}
index += step_r;
}
++p_pocs;
}
index = 0;
for
(layno = 0; layno < p_num_layers ; ++layno)
{
for
(resno = 0; resno < p_nb_resolutions; ++resno)
{
for
(compno = 0; compno < p_num_comps; ++compno)
{
loss |= (packet_array[index]!=1);
//index = step_r * resno + step_c * compno + step_l * layno;
index += step_c;
}
}
}
if
(loss)
{
opj_event_msg(p_manager , EVT_ERROR, "Missing packets possible loss of data\n");
}
opj_free(packet_array);
return !loss;
}
/* ----------------------------------------------------------------------- */
/**
* Gets the number of tile parts used for the given change of progression (if any) and the given tile.
*
* @param cp the coding parameters.
* @param pino the offset of the given poc (i.e. its position in the coding parameter).
* @param tileno the given tile.
*
* @return the number of tile parts.
*/
OPJ_UINT32 j2k_get_num_tp(opj_cp_t *cp,OPJ_UINT32 pino,OPJ_UINT32 tileno)
{
const OPJ_CHAR *prog = 00;
OPJ_UINT32 i;
OPJ_UINT32 tpnum = 1;
opj_tcp_t *tcp = 00;
opj_poc_t * l_current_poc = 00;
// preconditions only in debug
assert(tileno < (cp->tw * cp->th));
assert(pino < (cp->tcps[tileno].numpocs + 1));
// get the given tile coding parameter
tcp = &cp->tcps[tileno];
assert(tcp != 00);
l_current_poc = &(tcp->pocs[pino]);
assert(l_current_poc != 0);
// get the progression order as a character string
prog = j2k_convert_progression_order(tcp->prg);
assert(strlen(prog) > 0);
if
(cp->m_specific_param.m_enc.m_tp_on == 1)
{
for
(i=0;i<4;++i)
{
switch
(prog[i])
{
// component wise
case 'C':
tpnum *= l_current_poc->compE;
break;
// resolution wise
case 'R':
tpnum *= l_current_poc->resE;
break;
// precinct wise
case 'P':
tpnum *= l_current_poc->prcE;
break;
// layer wise
case 'L':
tpnum *= l_current_poc->layE;
break;
}
// whould we split here ?
if
( cp->m_specific_param.m_enc.m_tp_flag == prog[i] )
{
cp->m_specific_param.m_enc.m_tp_pos=i;
break;
}
}
}
else
{
tpnum=1;
}
return tpnum;
}
/**
* Calculates the total number of tile parts needed by the encoder to
* encode such an image. If not enough memory is available, then the function return false.
*
* @param p_nb_tiles pointer that will hold the number of tile parts.
* @param cp the coding parameters for the image.
* @param image the image to encode.
* @param p_j2k the p_j2k encoder.
* @param p_manager the user event manager.
*
* @return true if the function was successful, false else.
*/
bool j2k_calculate_tp(
opj_j2k_t *p_j2k,
opj_cp_t *cp,
OPJ_UINT32 * p_nb_tiles,
opj_image_t *image,
opj_event_mgr_t * p_manager)
{
OPJ_UINT32 pino,tileno;
OPJ_UINT32 l_nb_tiles;
opj_tcp_t *tcp;
// preconditions
assert(p_nb_tiles != 00);
assert(cp != 00);
assert(image != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_nb_tiles = cp->tw * cp->th;
* p_nb_tiles = 0;
tcp = cp->tcps;
/* INDEX >> */
if
(p_j2k->cstr_info)
{
opj_tile_info_t * l_info_tile_ptr = p_j2k->cstr_info->tile;
for
(tileno = 0; tileno < l_nb_tiles; ++tileno)
{
OPJ_UINT32 cur_totnum_tp = 0;
pi_update_encoding_parameters(image,cp,tileno);
for
(pino = 0; pino <= tcp->numpocs; ++pino)
{
OPJ_UINT32 tp_num = j2k_get_num_tp(cp,pino,tileno);
*p_nb_tiles = *p_nb_tiles + tp_num;
cur_totnum_tp += tp_num;
}
tcp->m_nb_tile_parts = cur_totnum_tp;
l_info_tile_ptr->tp = (opj_tp_info_t *) opj_malloc(cur_totnum_tp * sizeof(opj_tp_info_t));
if
(l_info_tile_ptr->tp == 00)
{
return false;
}
memset(l_info_tile_ptr->tp,0,cur_totnum_tp * sizeof(opj_tp_info_t));
l_info_tile_ptr->num_tps = cur_totnum_tp;
++l_info_tile_ptr;
++tcp;
}
}
else
{
for
(tileno = 0; tileno < l_nb_tiles; ++tileno)
{
OPJ_UINT32 cur_totnum_tp = 0;
pi_update_encoding_parameters(image,cp,tileno);
for
(pino = 0; pino <= tcp->numpocs; ++pino)
{
OPJ_UINT32 tp_num=0;
tp_num = j2k_get_num_tp(cp,pino,tileno);
*p_nb_tiles = *p_nb_tiles + tp_num;
cur_totnum_tp += tp_num;
}
tcp->m_nb_tile_parts = cur_totnum_tp;
++tcp;
}
}
return true;
}
/**
* Writes the SOC marker (Start Of Codestream)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_soc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
/* 2 bytes will be written */
OPJ_BYTE * l_start_stream = 00;
// preconditions
assert(p_stream != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_start_stream = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
/* write SOC identifier */
opj_write_bytes(l_start_stream,J2K_MS_SOC,2);
if
(opj_stream_write_data(p_stream,l_start_stream,2,p_manager) != 2)
{
return false;
}
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(p_j2k->cstr_info, J2K_MS_SOC, p_stream_tell(p_stream) - 2, 2);
#endif /* USE_JPWL */
return true;
/* <<UniPG */
}
/**
* 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.
*/
bool j2k_read_soc(
opj_j2k_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 false;
}
opj_read_bytes(l_data,&l_marker,2);
if
(l_marker != J2K_MS_SOC)
{
return false;
}
/* assure length of data is correct (0) */
p_j2k->m_specific_param.m_decoder.m_state = J2K_DEC_STATE_MHSIZ;
/* Index */
if
(p_j2k->cstr_info)
{
//TODO p_j2k->cstr_info->main_head_start = opj_stream_tell(p_stream) - 2; // why - 2 ?
p_j2k->cstr_info->codestream_size = 0;/*p_stream_numbytesleft(p_j2k->p_stream) + 2 - p_j2k->cstr_info->main_head_start*/;
}
return true;
}
/**
* Writes the SIZ marker (image and tile size)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_siz(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
OPJ_UINT32 l_size_len;
OPJ_BYTE * l_current_ptr;
opj_image_t * l_image = 00;
opj_cp_t *cp = 00;
opj_image_comp_t * l_img_comp = 00;
// preconditions
assert(p_stream != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_image = p_j2k->m_image;
cp = &(p_j2k->m_cp);
l_size_len = 40 + 3 * l_image->numcomps;
l_img_comp = l_image->comps;
if
(l_size_len > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_size_len);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_size_len;
}
l_current_ptr = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
/* write SOC identifier */
opj_write_bytes(l_current_ptr,J2K_MS_SIZ,2); /* SIZ */
l_current_ptr+=2;
opj_write_bytes(l_current_ptr,l_size_len-2,2); /* L_SIZ */
l_current_ptr+=2;
opj_write_bytes(l_current_ptr, cp->rsiz, 2); /* Rsiz (capabilities) */
l_current_ptr+=2;
opj_write_bytes(l_current_ptr, l_image->x1, 4); /* Xsiz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, l_image->y1, 4); /* Ysiz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, l_image->x0, 4); /* X0siz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, l_image->y0, 4); /* Y0siz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, cp->tdx, 4); /* XTsiz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, cp->tdy, 4); /* YTsiz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, cp->tx0, 4); /* XT0siz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, cp->ty0, 4); /* YT0siz */
l_current_ptr+=4;
opj_write_bytes(l_current_ptr, l_image->numcomps, 2); /* Csiz */
l_current_ptr+=2;
for
(i = 0; i < l_image->numcomps; ++i)
{
// TODO here with MCT ?
opj_write_bytes(l_current_ptr, l_img_comp->prec - 1 + (l_img_comp->sgnd << 7), 1); /* Ssiz_i */
++l_current_ptr;
opj_write_bytes(l_current_ptr, l_img_comp->dx, 1); /* XRsiz_i */
++l_current_ptr;
opj_write_bytes(l_current_ptr, l_img_comp->dy, 1); /* YRsiz_i */
++l_current_ptr;
++l_img_comp;
}
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_size_len,p_manager) != l_size_len)
{
return false;
}
return true;
}
/**
* 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.
*/
bool j2k_read_siz (
opj_j2k_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_t *l_cp = 00;
opj_image_comp_t * l_img_comp = 00;
opj_tcp_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_image;
l_cp = &(p_j2k->m_cp);
if
(p_header_size < 36)
{
opj_event_msg(p_manager, EVT_ERROR, "Error with SIZ marker size\n");
return 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(p_manager, EVT_ERROR, "Error with SIZ marker size\n");
return 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, (&l_cp->tdx),4); /* XTsiz */
p_header_data+=4;
opj_read_bytes(p_header_data,&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,(&l_image->numcomps),2); /* Csiz */
p_header_data+=2;
if
(l_image->numcomps != l_nb_comp)
{
opj_event_msg(p_manager, EVT_ERROR, "Error with SIZ marker size\n");
return false;
}
#ifdef USE_JPWL
if (p_j2k->m_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(p_j2k->cinfo, EVT_ERROR,
"JPWL: bad image size (%d x %d)\n",
image->x1, image->y1);
if (!JPWL_ASSUME || JPWL_ASSUME) {
opj_event_msg(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
if (image->numcomps != ((len - 38) / 3)) {
opj_event_msg(p_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(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
opj_event_msg(p_j2k->cinfo, EVT_WARNING, "- trying to adjust this\n");
if (image->numcomps < ((len - 38) / 3)) {
len = 38 + 3 * image->numcomps;
opj_event_msg(p_j2k->cinfo, EVT_WARNING, "- setting Lsiz to %d => HYPOTHESIS!!!\n",
len);
} else {
image->numcomps = ((len - 38) / 3);
opj_event_msg(p_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 */
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(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n");
return false;
}
memset(l_image->comps,0,l_image->numcomps * sizeof(opj_image_comp_t));
l_img_comp = l_image->comps;
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,&l_img_comp->dx,1); /* XRsiz_i */
++p_header_data;
opj_read_bytes(p_header_data,&l_img_comp->dy,1); /* YRsiz_i */
++p_header_data;
#ifdef USE_JPWL
if (p_j2k->m_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(p_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(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
opj_event_msg(p_j2k->cinfo, EVT_WARNING, "- trying to adjust them\n");
if (!image->comps[i].dx) {
image->comps[i].dx = 1;
opj_event_msg(p_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(p_j2k->cinfo, EVT_WARNING, "- setting YRsiz_%d to %d => HYPOTHESIS!!!\n",
i, 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;
}
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;
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 (p_j2k->m_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(p_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(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
opj_event_msg(p_j2k->cinfo, EVT_WARNING, "- trying to adjust them\n");
if (cp->tw < 1) {
cp->tw= 1;
opj_event_msg(p_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(p_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(p_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(p_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 */
/* memory allocations */
l_cp->tcps = (opj_tcp_t*) opj_calloc(l_nb_tiles, sizeof(opj_tcp_t));
if
(l_cp->tcps == 00)
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n");
return false;
}
memset(l_cp->tcps,0,l_nb_tiles*sizeof(opj_tcp_t));
#ifdef USE_JPWL
if (p_j2k->m_cp->correct) {
if (!cp->tcps) {
opj_event_msg(p_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(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
}
#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(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n");
return 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(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n");
return 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(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n");
return 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(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n");
return 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_DEC_STATE_MH;
opj_image_comp_update(l_image,l_cp);
/* Index */
if
(p_j2k->cstr_info)
{
opj_codestream_info_t *cstr_info = p_j2k->cstr_info;
cstr_info->image_w = l_image->x1 - l_image->x0;
cstr_info->image_h = l_image->y1 - l_image->y0;
cstr_info->numcomps = l_image->numcomps;
cstr_info->tw = l_cp->tw;
cstr_info->th = l_cp->th;
cstr_info->tile_x = l_cp->tdx;
cstr_info->tile_y = l_cp->tdy;
cstr_info->tile_Ox = l_cp->tx0;
cstr_info->tile_Oy = l_cp->ty0;
cstr_info->tile = (opj_tile_info_t*) opj_calloc(l_nb_tiles, sizeof(opj_tile_info_t));
if
(cstr_info->tile == 00)
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n");
return false;
}
memset(cstr_info->tile,0,l_nb_tiles * sizeof(opj_tile_info_t));
}
return true;
}
/**
* Writes the COM marker (comment)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_com(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_comment_size;
OPJ_UINT32 l_total_com_size;
const OPJ_CHAR *l_comment;
OPJ_BYTE * l_current_ptr = 00;
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
l_comment = p_j2k->m_cp.comment;
l_comment_size = strlen(l_comment);
l_total_com_size = l_comment_size + 6;
if
(l_total_com_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_total_com_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_total_com_size;
}
l_current_ptr = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
opj_write_bytes(l_current_ptr,J2K_MS_COM , 2); /* COM */
l_current_ptr+=2;
opj_write_bytes(l_current_ptr,l_total_com_size - 2 , 2); /* L_COM */
l_current_ptr+=2;
opj_write_bytes(l_current_ptr,1 , 2); /* General use (IS 8859-15:1999 (Latin) values) */
l_current_ptr+=2,
memcpy( l_current_ptr,l_comment,l_comment_size);
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_total_com_size,p_manager) != l_total_com_size)
{
return false;
}
return true;
}
/**
* 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.
*/
bool j2k_read_com (
opj_j2k_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 true;
}
/**
* Gets the size taken by writting a SPCod or SPCoc for the given tile and component.
*
* @param p_tile_no the tile indix.
* @param p_comp_no the component being outputted.
* @param p_j2k the J2K codec.
*
* @return the number of bytes taken by the SPCod element.
*/
OPJ_UINT32 j2k_get_SPCod_SPCoc_size (
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no
)
{
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
// preconditions
assert(p_j2k != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_tile_no];
l_tccp = &l_tcp->tccps[p_comp_no];
// preconditions again
assert(p_tile_no < (l_cp->tw * l_cp->th));
assert(p_comp_no < p_j2k->m_image->numcomps);
if
(l_tccp->csty & J2K_CCP_CSTY_PRT)
{
return 5 + l_tccp->numresolutions;
}
else
{
return 5;
}
}
/**
* Writes a SPCod or SPCoc element, i.e. the coding style of a given component of a tile.
*
* @param p_comp_no the component number to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*
*/
bool j2k_write_SPCod_SPCoc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_header_size,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
// preconditions
assert(p_j2k != 00);
assert(p_header_size != 00);
assert(p_manager != 00);
assert(p_data != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_tile_no];
l_tccp = &l_tcp->tccps[p_comp_no];
// preconditions again
assert(p_tile_no < (l_cp->tw * l_cp->th));
assert(p_comp_no <(p_j2k->m_image->numcomps));
if
(*p_header_size < 5)
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting SPCod SPCoc element\n");
return false;
}
opj_write_bytes(p_data,l_tccp->numresolutions - 1, 1); /* SPcoc (D) */
++p_data;
opj_write_bytes(p_data,l_tccp->cblkw - 2, 1); /* SPcoc (E) */
++p_data;
opj_write_bytes(p_data,l_tccp->cblkh - 2, 1); /* SPcoc (F) */
++p_data;
opj_write_bytes(p_data,l_tccp->cblksty, 1); /* SPcoc (G) */
++p_data;
opj_write_bytes(p_data,l_tccp->qmfbid, 1); /* SPcoc (H) */
++p_data;
*p_header_size = *p_header_size - 5;
if
(l_tccp->csty & J2K_CCP_CSTY_PRT)
{
if
(*p_header_size < l_tccp->numresolutions)
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting SPCod SPCoc element\n");
return false;
}
for
(i = 0; i < l_tccp->numresolutions; ++i)
{
opj_write_bytes(p_data,l_tccp->prcw[i] + (l_tccp->prch[i] << 4), 1); /* SPcoc (I_i) */
++p_data;
}
*p_header_size = *p_header_size - l_tccp->numresolutions;
}
return true;
}
/**
* 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.
*/
bool j2k_read_SPCod_SPCoc(
opj_j2k_t *p_j2k,
OPJ_UINT32 compno,
OPJ_BYTE * p_header_data,
OPJ_UINT32 * p_header_size,
struct opj_event_mgr * p_manager
)
{
// loop
OPJ_UINT32 i;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
OPJ_BYTE * l_current_ptr = 00;
OPJ_UINT32 l_tmp;
// 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_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(compno < p_j2k->m_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(p_manager, EVT_ERROR, "Error reading SPCod SPCoc element\n");
return 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(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 |= J2K_DEC_STATE_ERR;
return 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(p_manager, EVT_ERROR, "Error reading SPCod SPCoc element\n");
return 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;
}
}
/* INDEX >> */
if
(p_j2k->cstr_info && compno == 0)
{
OPJ_UINT32 l_data_size = l_tccp->numresolutions * sizeof(OPJ_UINT32);
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 */
return 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_t *p_j2k
)
{
// loop
OPJ_UINT32 i;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_ref_tccp = 00;
opj_tccp_t *l_copied_tccp = 00;
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_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_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;
}
}
/**
* Writes the COD marker (Coding style default)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_cod(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
OPJ_UINT32 l_code_size,l_remaining_size;
OPJ_BYTE * l_current_data = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_j2k->m_current_tile_number];
l_code_size = 9 + j2k_get_SPCod_SPCoc_size(p_j2k,p_j2k->m_current_tile_number,0);
l_remaining_size = l_code_size;
if
(l_code_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_code_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_code_size;
}
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
opj_write_bytes(l_current_data,J2K_MS_COD,2); /* COD */
l_current_data += 2;
opj_write_bytes(l_current_data,l_code_size-2,2); /* L_COD */
l_current_data += 2;
opj_write_bytes(l_current_data,l_tcp->csty,1); /* Scod */
++l_current_data;
opj_write_bytes(l_current_data,l_tcp->prg,1); /* SGcod (A) */
++l_current_data;
opj_write_bytes(l_current_data,l_tcp->numlayers,2); /* SGcod (B) */
l_current_data+=2;
opj_write_bytes(l_current_data,l_tcp->mct,1); /* SGcod (C) */
++l_current_data;
l_remaining_size -= 9;
if
(! j2k_write_SPCod_SPCoc(p_j2k,p_j2k->m_current_tile_number,0,l_current_data,&l_remaining_size,p_manager))
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting COD marker\n");
return false;
}
if
(l_remaining_size != 0)
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting COD marker\n");
return false;
}
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_code_size,p_manager) != l_code_size)
{
return false;
}
return true;
}
/**
* 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.
*/
bool j2k_read_cod (
opj_j2k_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_t *l_cp = 00;
opj_tcp_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_cp = &(p_j2k->m_cp);
l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == 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_image;
// make sure room is sufficient
if
(p_header_size < 5)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading COD marker\n");
return 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
(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(p_manager, EVT_ERROR, "Error reading COD marker\n");
return false;
}
if
(p_header_size != 0)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading COD marker\n");
return false;
}
j2k_copy_tile_component_parameters(p_j2k);
/* Index */
if
(p_j2k->cstr_info)
{
opj_codestream_info_t *l_cstr_info = p_j2k->cstr_info;
l_cstr_info->prog = l_tcp->prg;
l_cstr_info->numlayers = l_tcp->numlayers;
l_cstr_info->numdecompos = (OPJ_INT32*) opj_malloc(l_image->numcomps * sizeof(OPJ_UINT32));
for
(i = 0; i < l_image->numcomps; ++i)
{
l_cstr_info->numdecompos[i] = l_tcp->tccps[i].numresolutions - 1;
}
}
return true;
}
/**
* Writes the COC marker (Coding style component)
*
* @param p_comp_no the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_coc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_no,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_coc_size,l_remaining_size;
OPJ_UINT32 l_comp_room;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_comp_room = (p_j2k->m_image->numcomps <= 256) ? 1 : 2;
l_coc_size = 5 + l_comp_room + j2k_get_SPCod_SPCoc_size(p_j2k,p_j2k->m_current_tile_number,p_comp_no);
if
(l_coc_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_coc_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_coc_size;
}
j2k_write_coc_in_memory(p_j2k,p_comp_no,p_j2k->m_specific_param.m_encoder.m_header_tile_data,&l_remaining_size,p_manager);
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_coc_size,p_manager) != l_coc_size)
{
return false;
}
return true;
}
/**
* Gets the maximum size taken by a coc.
*
* @param p_j2k the jpeg2000 codec to use.
*/
OPJ_UINT32 j2k_get_max_coc_size(opj_j2k_t *p_j2k)
{
OPJ_UINT32 i,j;
OPJ_UINT32 l_nb_comp;
OPJ_UINT32 l_nb_tiles;
OPJ_UINT32 l_max = 0;
// preconditions
l_nb_tiles = p_j2k->m_cp.tw * p_j2k->m_cp.th ;
l_nb_comp = p_j2k->m_image->numcomps;
for
(i=0;i<l_nb_tiles;++i)
{
for
(j=0;j<l_nb_comp;++j)
{
l_max = uint_max(l_max,j2k_get_SPCod_SPCoc_size(p_j2k,i,j));
}
}
return 6 + l_max;
}
/**
* Gets the maximum size taken by the toc headers of all the tile parts of any given tile.
*/
OPJ_UINT32 j2k_get_max_toc_size (opj_j2k_t *p_j2k)
{
OPJ_UINT32 i;
OPJ_UINT32 l_nb_tiles;
OPJ_UINT32 l_max = 0;
opj_tcp_t * l_tcp = 00;
// preconditions
l_tcp = p_j2k->m_cp.tcps;
l_nb_tiles = p_j2k->m_cp.tw * p_j2k->m_cp.th ;
for
(i=0;i<l_nb_tiles;++i)
{
l_max = uint_max(l_max,l_tcp->m_nb_tile_parts);
++l_tcp;
}
return 12 * l_max;
}
/**
* Gets the maximum size taken by the headers of the SOT.
*
* @param p_j2k the jpeg2000 codec to use.
*/
OPJ_UINT32 j2k_get_specific_header_sizes(opj_j2k_t *p_j2k)
{
OPJ_UINT32 l_nb_bytes = 0;
OPJ_UINT32 l_nb_comps;
OPJ_UINT32 l_coc_bytes,l_qcc_bytes;
l_nb_comps = p_j2k->m_image->numcomps - 1;
l_nb_bytes += j2k_get_max_toc_size(p_j2k);
if
(p_j2k->m_cp.m_specific_param.m_enc.m_cinema == 0)
{
l_coc_bytes = j2k_get_max_coc_size(p_j2k);
l_nb_bytes += l_nb_comps * l_coc_bytes;
l_qcc_bytes = j2k_get_max_qcc_size(p_j2k);
l_nb_bytes += l_nb_comps * l_qcc_bytes;
}
l_nb_bytes += j2k_get_max_poc_size(p_j2k);
/*** DEVELOPER CORNER, Add room for your headers ***/
return l_nb_bytes;
}
/**
* Writes the COC marker (Coding style component)
*
* @param p_comp_no the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
void j2k_write_coc_in_memory(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
struct opj_event_mgr * p_manager
)
{
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
OPJ_UINT32 l_coc_size,l_remaining_size;
OPJ_BYTE * l_current_data = 00;
opj_image_t *l_image = 00;
OPJ_UINT32 l_comp_room;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_j2k->m_current_tile_number];
l_image = p_j2k->m_image;
l_comp_room = (l_image->numcomps <= 256) ? 1 : 2;
l_coc_size = 5 + l_comp_room + j2k_get_SPCod_SPCoc_size(p_j2k,p_j2k->m_current_tile_number,p_comp_no);
l_remaining_size = l_coc_size;
l_current_data = p_data;
opj_write_bytes(l_current_data,J2K_MS_COC,2); /* COC */
l_current_data += 2;
opj_write_bytes(l_current_data,l_coc_size-2,2); /* L_COC */
l_current_data += 2;
opj_write_bytes(l_current_data,p_comp_no, l_comp_room); /* Ccoc */
l_current_data+=l_comp_room;
opj_write_bytes(l_current_data, l_tcp->tccps[p_comp_no].csty, 1); /* Scoc */
++l_current_data;
l_remaining_size -= (5 + l_comp_room);
j2k_write_SPCod_SPCoc(p_j2k,p_j2k->m_current_tile_number,0,l_current_data,&l_remaining_size,p_manager);
* p_data_written = l_coc_size;
}
/**
* 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.
*/
bool j2k_read_coc (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
{
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_image_t *l_image = 00;
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_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_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(p_manager, EVT_ERROR, "Error reading COC marker\n");
return 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(p_manager, EVT_ERROR, "Error reading COC marker (bad number of components)\n");
return 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(p_manager, EVT_ERROR, "Error reading COC marker\n");
return false;
}
if
(p_header_size != 0)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading COC marker\n");
return false;
}
return true;
}
/**
* Gets the size taken by writting SQcd or SQcc element, i.e. the quantization values of a band in the QCD or QCC.
*
* @param p_tile_no the tile indix.
* @param p_comp_no the component being outputted.
* @param p_j2k the J2K codec.
*
* @return the number of bytes taken by the SPCod element.
*/
OPJ_UINT32 j2k_get_SQcd_SQcc_size (
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no
)
{
OPJ_UINT32 l_num_bands;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
// preconditions
assert(p_j2k != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_tile_no];
l_tccp = &l_tcp->tccps[p_comp_no];
// preconditions again
assert(p_tile_no < l_cp->tw * l_cp->th);
assert(p_comp_no < p_j2k->m_image->numcomps);
l_num_bands = (l_tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ? 1 : (l_tccp->numresolutions * 3 - 2);
if
(l_tccp->qntsty == J2K_CCP_QNTSTY_NOQNT)
{
return 1 + l_num_bands;
}
else
{
return 1 + 2*l_num_bands;
}
}
/**
* Writes a SQcd or SQcc element, i.e. the quantization values of a band.
*
* @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.
*
*/
bool j2k_write_SQcd_SQcc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_header_size,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_header_size;
OPJ_UINT32 l_band_no, l_num_bands;
OPJ_UINT32 l_expn,l_mant;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
// preconditions
assert(p_j2k != 00);
assert(p_header_size != 00);
assert(p_manager != 00);
assert(p_data != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_tile_no];
l_tccp = &l_tcp->tccps[p_comp_no];
// preconditions again
assert(p_tile_no < l_cp->tw * l_cp->th);
assert(p_comp_no <p_j2k->m_image->numcomps);
l_num_bands = (l_tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ? 1 : (l_tccp->numresolutions * 3 - 2);
if
(l_tccp->qntsty == J2K_CCP_QNTSTY_NOQNT)
{
l_header_size = 1 + l_num_bands;
if
(*p_header_size < l_header_size)
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting SQcd SQcc element\n");
return false;
}
opj_write_bytes(p_data,l_tccp->qntsty + (l_tccp->numgbits << 5), 1); /* Sqcx */
++p_data;
for
(l_band_no = 0; l_band_no < l_num_bands; ++l_band_no)
{
l_expn = l_tccp->stepsizes[l_band_no].expn;
opj_write_bytes(p_data, l_expn << 3, 1); /* SPqcx_i */
++p_data;
}
}
else
{
l_header_size = 1 + 2*l_num_bands;
if
(*p_header_size < l_header_size)
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting SQcd SQcc element\n");
return false;
}
opj_write_bytes(p_data,l_tccp->qntsty + (l_tccp->numgbits << 5), 1); /* Sqcx */
++p_data;
for
(l_band_no = 0; l_band_no < l_num_bands; ++l_band_no)
{
l_expn = l_tccp->stepsizes[l_band_no].expn;
l_mant = l_tccp->stepsizes[l_band_no].mant;
opj_write_bytes(p_data, (l_expn << 11) + l_mant, 2); /* SPqcx_i */
p_data += 2;
}
}
*p_header_size = *p_header_size - l_header_size;
return true;
}
/**
* 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.
*/
bool j2k_read_SQcd_SQcc(
opj_j2k_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_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
OPJ_BYTE * l_current_ptr = 00;
OPJ_UINT32 l_tmp;
OPJ_UINT32 l_num_band;
// 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_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_image->numcomps);
l_tccp = &l_tcp->tccps[p_comp_no];
l_current_ptr = p_header_data;
if
(* p_header_size < 1)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading SQcd or SQcc element\n");
return 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(p_manager, EVT_ERROR, "Error reading CCP_QNTSTY element\n");
return false;
}
}
#ifdef USE_JPWL
if (p_j2k->m_cp->correct) {
/* if JPWL is on, we check whether there are too many subbands */
if ((numbands < 0) || (numbands >= J2K_MAXBANDS)) {
opj_event_msg(p_j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR,
"JPWL: bad number of subbands in Sqcx (%d)\n",
numbands);
if (!JPWL_ASSUME) {
opj_event_msg(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
numbands = 1;
opj_event_msg(p_j2k->cinfo, EVT_WARNING, "- trying to adjust them\n"
"- setting number of bands to %d => HYPOTHESIS!!!\n",
numbands);
};
};
#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;
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;
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 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_t *p_j2k
)
{
// loop
OPJ_UINT32 i;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_ref_tccp = 00;
opj_tccp_t *l_copied_tccp = 00;
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_DEC_STATE_TPH ? &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp;
// precondition again
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_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;
}
}
/**
* Writes the QCD marker (quantization default)
*
* @param p_comp_number the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_qcd(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
OPJ_UINT32 l_qcd_size,l_remaining_size;
OPJ_BYTE * l_current_data = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_j2k->m_current_tile_number];
l_qcd_size = 4 + j2k_get_SQcd_SQcc_size(p_j2k,p_j2k->m_current_tile_number,0);
l_remaining_size = l_qcd_size;
if
(l_qcd_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_qcd_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_qcd_size;
}
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
opj_write_bytes(l_current_data,J2K_MS_QCD,2); /* QCD */
l_current_data += 2;
opj_write_bytes(l_current_data,l_qcd_size-2,2); /* L_QCD */
l_current_data += 2;
l_remaining_size -= 4;
if
(! j2k_write_SQcd_SQcc(p_j2k,p_j2k->m_current_tile_number,0,l_current_data,&l_remaining_size,p_manager))
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting QCD marker\n");
return false;
}
if
(l_remaining_size != 0)
{
opj_event_msg(p_manager, EVT_ERROR, "Error writting QCD marker\n");
return false;
}
if
(opj_stream_write_data(p_stream, p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_qcd_size,p_manager) != l_qcd_size)
{
return false;
}
return true;
}
/**
* 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.
*/
bool j2k_read_qcd (
opj_j2k_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(p_manager, EVT_ERROR, "Error reading QCD marker\n");
return false;
}
if
(p_header_size != 0)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading QCD marker\n");
return false;
}
j2k_copy_tile_quantization_parameters(p_j2k);
return true;
}
/**
* Writes the QCC marker (quantization component)
*
* @param p_comp_no the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_qcc(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_no,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_qcc_size,l_remaining_size;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_qcc_size = 6 + j2k_get_SQcd_SQcc_size(p_j2k,p_j2k->m_current_tile_number,p_comp_no);
l_remaining_size = l_qcc_size;
if
(l_qcc_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_qcc_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_qcc_size;
}
j2k_write_qcc_in_memory(p_j2k,p_comp_no,p_j2k->m_specific_param.m_encoder.m_header_tile_data,&l_remaining_size,p_manager);
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_qcc_size,p_manager) != l_qcc_size)
{
return false;
}
return true;
}
/**
* Writes the QCC marker (quantization component)
*
* @param p_comp_no the index of the component to output.
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
void j2k_write_qcc_in_memory(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_comp_no,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_qcc_size,l_remaining_size;
OPJ_BYTE * l_current_data = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
l_qcc_size = 6 + j2k_get_SQcd_SQcc_size(p_j2k,p_j2k->m_current_tile_number,p_comp_no);
l_remaining_size = l_qcc_size;
l_current_data = p_data;
opj_write_bytes(l_current_data,J2K_MS_QCC,2); /* QCC */
l_current_data += 2;
if
(p_j2k->m_image->numcomps <= 256)
{
--l_qcc_size;
opj_write_bytes(l_current_data,l_qcc_size-2,2); /* L_QCC */
l_current_data += 2;
opj_write_bytes(l_current_data, p_comp_no, 1); /* Cqcc */
++l_current_data;
// in the case only one byte is sufficient the last byte allocated is useless -> still do -6 for available
l_remaining_size -= 6;
}
else
{
opj_write_bytes(l_current_data,l_qcc_size-2,2); /* L_QCC */
l_current_data += 2;
opj_write_bytes(l_current_data, p_comp_no, 2); /* Cqcc */
l_current_data+=2;
l_remaining_size -= 6;
}
j2k_write_SQcd_SQcc(p_j2k,p_j2k->m_current_tile_number,p_comp_no,l_current_data,&l_remaining_size,p_manager);
* p_data_written = l_qcc_size;
}
/**
* Gets the maximum size taken by a qcc.
*/
OPJ_UINT32 j2k_get_max_qcc_size (opj_j2k_t *p_j2k)
{
return j2k_get_max_coc_size(p_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.
*/
bool j2k_read_qcc(
opj_j2k_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_image->numcomps;
#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 ((compno < 0) || (compno >= numcomp)) {
opj_event_msg(p_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(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
compno = backup_compno % numcomp;
opj_event_msg(p_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 */
if
(l_num_comp <= 256)
{
if
(p_header_size < 1)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading QCC marker\n");
return 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(p_manager, EVT_ERROR, "Error reading QCC marker\n");
return false;
}
opj_read_bytes(p_header_data,&l_comp_no,2);
p_header_data+=2;
p_header_size-=2;
}
if
(! j2k_read_SQcd_SQcc(p_j2k,l_comp_no,p_header_data,&p_header_size,p_manager))
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading QCC marker\n");
return false;
}
if
(p_header_size != 0)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading QCC marker\n");
return false;
}
return true;
}
/**
* Writes the CBD marker (Component bit depth definition)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_cbd(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
OPJ_UINT32 l_cbd_size;
OPJ_BYTE * l_current_data = 00;
opj_image_t *l_image = 00;
opj_image_comp_t * l_comp = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_image = p_j2k->m_image;
l_cbd_size = 6 + p_j2k->m_image->numcomps;
if
(l_cbd_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_cbd_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_cbd_size;
}
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
opj_write_bytes(l_current_data,J2K_MS_CBD,2); /* CBD */
l_current_data += 2;
opj_write_bytes(l_current_data,l_cbd_size-2,2); /* L_CBD */
l_current_data += 2;
opj_write_bytes(l_current_data,l_image->numcomps, 2); /* Ncbd */
l_current_data+=2;
l_comp = l_image->comps;
for
(i=0;i<l_image->numcomps;++i)
{
opj_write_bytes(l_current_data, (l_comp->sgnd << 7) | (l_comp->prec - 1), 1); /* Component bit depth */
++l_current_data;
++l_comp;
}
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_cbd_size,p_manager) != l_cbd_size)
{
return false;
}
return 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.
*/
bool j2k_read_cbd (
opj_j2k_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_image->numcomps;
if
(p_header_size != (p_j2k->m_image->numcomps + 2))
{
opj_event_msg(p_manager, EVT_ERROR, "Crror reading CBD marker\n");
return 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(p_manager, EVT_ERROR, "Crror reading CBD marker\n");
return false;
}
l_comp = p_j2k->m_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 true;
}
/**
* Writes the MCC marker (Multiple Component Collection)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_mcc_record(
opj_j2k_t *p_j2k,
struct opj_simple_mcc_decorrelation_data * p_mcc_record,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
OPJ_UINT32 l_mcc_size;
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_nb_bytes_for_comp;
OPJ_UINT32 l_mask;
OPJ_UINT32 l_tmcc;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
if
(p_mcc_record->m_nb_comps > 255 )
{
l_nb_bytes_for_comp = 2;
l_mask = 0x8000;
}
else
{
l_nb_bytes_for_comp = 1;
l_mask = 0;
}
l_mcc_size = p_mcc_record->m_nb_comps * 2 * l_nb_bytes_for_comp + 19;
if
(l_mcc_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_mcc_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_mcc_size;
}
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
opj_write_bytes(l_current_data,J2K_MS_MCC,2); /* MCC */
l_current_data += 2;
opj_write_bytes(l_current_data,l_mcc_size-2,2); /* Lmcc */
l_current_data += 2;
/* first marker */
opj_write_bytes(l_current_data,0,2); /* Zmcc */
l_current_data += 2;
opj_write_bytes(l_current_data,p_mcc_record->m_index,1); /* Imcc -> no need for other values, take the first */
++l_current_data;
/* only one marker atm */
opj_write_bytes(l_current_data,0,2); /* Ymcc */
l_current_data+=2;
opj_write_bytes(l_current_data,1,2); /* Qmcc -> number of collections -> 1 */
l_current_data+=2;
opj_write_bytes(l_current_data,0x1,1); /* Xmcci type of component transformation -> array based decorrelation */
++l_current_data;
opj_write_bytes(l_current_data,p_mcc_record->m_nb_comps | l_mask,2); /* Nmcci number of input components involved and size for each component offset = 8 bits */
l_current_data+=2;
for
(i=0;i<p_mcc_record->m_nb_comps;++i)
{
opj_write_bytes(l_current_data,i,l_nb_bytes_for_comp); /* Cmccij Component offset*/
l_current_data+=l_nb_bytes_for_comp;
}
opj_write_bytes(l_current_data,p_mcc_record->m_nb_comps|l_mask,2); /* Mmcci number of output components involved and size for each component offset = 8 bits */
l_current_data+=2;
for
(i=0;i<p_mcc_record->m_nb_comps;++i)
{
opj_write_bytes(l_current_data,i,l_nb_bytes_for_comp); /* Wmccij Component offset*/
l_current_data+=l_nb_bytes_for_comp;
}
l_tmcc = ((!p_mcc_record->m_is_irreversible)&1)<<16;
if
(p_mcc_record->m_decorrelation_array)
{
l_tmcc |= p_mcc_record->m_decorrelation_array->m_index;
}
if
(p_mcc_record->m_offset_array)
{
l_tmcc |= ((p_mcc_record->m_offset_array->m_index)<<8);
}
opj_write_bytes(l_current_data,l_tmcc,3); /* Tmcci : use MCT defined as number 1 and irreversible array based. */
l_current_data+=3;
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_mcc_size,p_manager) != l_mcc_size)
{
return false;
}
return 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.
*/
bool j2k_read_mcc (
opj_j2k_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_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_DEC_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(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return false;
}
/* first marker */
opj_read_bytes(p_header_data,&l_tmp,2); /* Zmcc */
p_header_data += 2;
if
(l_tmp != 0)
{
opj_event_msg(p_manager, EVT_WARNING, "Cannot take in charge multiple data spanning\n");
return true;
}
if
(p_header_size < 7)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return 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(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge multiple data spanning\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge multiple collections\n");
return true;
}
p_header_size -= 7;
for
(i=0;i<l_nb_collections;++i)
{
if
(p_header_size < 3)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge collections other than array decorrelation\n");
return 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(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge collections with indix shuffle\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge collections without same number of indixes\n");
return true;
}
if
(p_header_size < (l_nb_bytes_by_comp * l_mcc_record->m_nb_comps + 3))
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge collections with indix shuffle\n");
return 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(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return 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(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return false;
}
}
}
if
(p_header_size != 0)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading MCC marker\n");
return false;
}
++l_tcp->m_nb_mcc_records;
return true;
}
/**
* Writes the MCT marker (Multiple Component Transform)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_mct_record(
opj_j2k_t *p_j2k,
opj_mct_data_t * p_mct_record,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_mct_size;
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_tmp;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_mct_size = 10 + p_mct_record->m_data_size;
if
(l_mct_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_mct_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_mct_size;
}
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
opj_write_bytes(l_current_data,J2K_MS_MCT,2); /* MCT */
l_current_data += 2;
opj_write_bytes(l_current_data,l_mct_size-2,2); /* Lmct */
l_current_data += 2;
opj_write_bytes(l_current_data,0,2); /* Zmct */
l_current_data += 2;
/* only one marker atm */
l_tmp = (p_mct_record->m_index & 0xff) | (p_mct_record->m_array_type << 8) | (p_mct_record->m_element_type << 10);
opj_write_bytes(l_current_data,l_tmp,2);
l_current_data += 2;
opj_write_bytes(l_current_data,0,2); /* Ymct */
l_current_data+=2;
memcpy(l_current_data,p_mct_record->m_data,p_mct_record->m_data_size);
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_mct_size,p_manager) != l_mct_size)
{
return false;
}
return true;
}
/**
* 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.
*/
bool j2k_read_mct (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
opj_tcp_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_DEC_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(p_manager, EVT_ERROR, "Error reading MCT marker\n");
return false;
}
/* first marker */
opj_read_bytes(p_header_data,&l_tmp,2); /* Zmct */
p_header_data += 2;
if
(l_tmp != 0)
{
opj_event_msg(p_manager, EVT_WARNING, "Cannot take in charge mct data within multiple MCT records\n");
return true;
}
if
(p_header_size <= 6)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading MCT marker\n");
return false;
}
opj_read_bytes(p_header_data,&l_tmp,2); /* Imct -> no need for other values, take the first, type is double with decorrelation x0000 1101 0000 0000*/
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(p_manager, EVT_ERROR, "Error reading MCT marker\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge multiple MCT markers\n");
return 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(p_manager, EVT_ERROR, "Error reading MCT marker\n");
return 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 true;
}
bool j2k_setup_mct_encoding (opj_tcp_t * p_tcp,opj_image_t * p_image)
{
OPJ_UINT32 i;
OPJ_UINT32 l_indix = 1;
opj_mct_data_t * l_mct_deco_data = 00,* l_mct_offset_data = 00;
opj_simple_mcc_decorrelation_data_t * l_mcc_data;
OPJ_UINT32 l_mct_size,l_nb_elem;
OPJ_FLOAT32 * l_data, * l_current_data;
opj_tccp_t * l_tccp;
// preconditions
assert(p_tcp != 00);
if
(p_tcp->mct != 2)
{
return true;
}
if
(p_tcp->m_mct_decoding_matrix)
{
if
(p_tcp->m_nb_mct_records == p_tcp->m_nb_max_mct_records)
{
p_tcp->m_nb_max_mct_records += J2K_MCT_DEFAULT_NB_RECORDS;
p_tcp->m_mct_records = (opj_mct_data_t*)opj_realloc(p_tcp->m_mct_records,p_tcp->m_nb_max_mct_records * sizeof(opj_mct_data_t));
if
(! p_tcp->m_mct_records)
{
return false;
}
l_mct_deco_data = p_tcp->m_mct_records + p_tcp->m_nb_mct_records;
memset(l_mct_deco_data ,0,(p_tcp->m_nb_max_mct_records - p_tcp->m_nb_mct_records) * sizeof(opj_mct_data_t));
}
l_mct_deco_data = p_tcp->m_mct_records + p_tcp->m_nb_mct_records;
if
(l_mct_deco_data->m_data)
{
opj_free(l_mct_deco_data->m_data);
l_mct_deco_data->m_data = 00;
}
l_mct_deco_data->m_index = l_indix++;
l_mct_deco_data->m_array_type = MCT_TYPE_DECORRELATION;
l_mct_deco_data->m_element_type = MCT_TYPE_FLOAT;
l_nb_elem = p_image->numcomps * p_image->numcomps;
l_mct_size = l_nb_elem * MCT_ELEMENT_SIZE[l_mct_deco_data->m_element_type];
l_mct_deco_data->m_data = (OPJ_BYTE*)opj_malloc(l_mct_size );
if
(! l_mct_deco_data->m_data)
{
return false;
}
j2k_mct_write_functions_from_float[l_mct_deco_data->m_element_type](p_tcp->m_mct_decoding_matrix,l_mct_deco_data->m_data,l_nb_elem);
l_mct_deco_data->m_data_size = l_mct_size;
++p_tcp->m_nb_mct_records;
}
if
(p_tcp->m_nb_mct_records == p_tcp->m_nb_max_mct_records)
{
p_tcp->m_nb_max_mct_records += J2K_MCT_DEFAULT_NB_RECORDS;
p_tcp->m_mct_records = (opj_mct_data_t*)opj_realloc(p_tcp->m_mct_records,p_tcp->m_nb_max_mct_records * sizeof(opj_mct_data_t));
if
(! p_tcp->m_mct_records)
{
return false;
}
l_mct_offset_data = p_tcp->m_mct_records + p_tcp->m_nb_mct_records;
memset(l_mct_offset_data ,0,(p_tcp->m_nb_max_mct_records - p_tcp->m_nb_mct_records) * sizeof(opj_mct_data_t));
if
(l_mct_deco_data)
{
l_mct_deco_data = l_mct_offset_data - 1;
}
}
l_mct_offset_data = p_tcp->m_mct_records + p_tcp->m_nb_mct_records;
if
(l_mct_offset_data->m_data)
{
opj_free(l_mct_offset_data->m_data);
l_mct_offset_data->m_data = 00;
}
l_mct_offset_data->m_index = l_indix++;
l_mct_offset_data->m_array_type = MCT_TYPE_OFFSET;
l_mct_offset_data->m_element_type = MCT_TYPE_FLOAT;
l_nb_elem = p_image->numcomps;
l_mct_size = l_nb_elem * MCT_ELEMENT_SIZE[l_mct_offset_data->m_element_type];
l_mct_offset_data->m_data = (OPJ_BYTE*)opj_malloc(l_mct_size );
if
(! l_mct_offset_data->m_data)
{
return false;
}
l_data = (OPJ_FLOAT32*)opj_malloc(l_nb_elem * sizeof(OPJ_FLOAT32));
if
(! l_data)
{
opj_free(l_mct_offset_data->m_data);
l_mct_offset_data->m_data = 00;
return false;
}
l_tccp = p_tcp->tccps;
l_current_data = l_data;
for
(i=0;i<l_nb_elem;++i)
{
*(l_current_data++) = (OPJ_FLOAT32) (l_tccp->m_dc_level_shift);
++l_tccp;
}
j2k_mct_write_functions_from_float[l_mct_offset_data->m_element_type](l_data,l_mct_offset_data->m_data,l_nb_elem);
opj_free(l_data);
l_mct_offset_data->m_data_size = l_mct_size;
++p_tcp->m_nb_mct_records;
if
(p_tcp->m_nb_mcc_records == p_tcp->m_nb_max_mcc_records)
{
p_tcp->m_nb_max_mcc_records += J2K_MCT_DEFAULT_NB_RECORDS;
p_tcp->m_mcc_records = (opj_simple_mcc_decorrelation_data_t*)
opj_realloc(p_tcp->m_mcc_records,p_tcp->m_nb_max_mcc_records * sizeof(opj_simple_mcc_decorrelation_data_t));
if
(! p_tcp->m_mcc_records)
{
return false;
}
l_mcc_data = p_tcp->m_mcc_records + p_tcp->m_nb_mcc_records;
memset(l_mcc_data ,0,(p_tcp->m_nb_max_mcc_records - p_tcp->m_nb_mcc_records) * sizeof(opj_simple_mcc_decorrelation_data_t));
}
l_mcc_data = p_tcp->m_mcc_records + p_tcp->m_nb_mcc_records;
l_mcc_data->m_decorrelation_array = l_mct_deco_data;
l_mcc_data->m_is_irreversible = 1;
l_mcc_data->m_nb_comps = p_image->numcomps;
l_mcc_data->m_index = l_indix++;
l_mcc_data->m_offset_array = l_mct_offset_data;
++p_tcp->m_nb_mcc_records;
return true;
}
/**
* Writes the MCO marker (Multiple component transformation ordering)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_mco(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_mco_size;
opj_tcp_t * l_tcp = 00;
opj_simple_mcc_decorrelation_data_t * l_mcc_record;
OPJ_UINT32 i;
// 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]);
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
l_mco_size = 5 + l_tcp->m_nb_mcc_records;
if
(l_mco_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_mco_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_mco_size;
}
opj_write_bytes(l_current_data,J2K_MS_MCO,2); /* MCO */
l_current_data += 2;
opj_write_bytes(l_current_data,l_mco_size-2,2); /* Lmco */
l_current_data += 2;
opj_write_bytes(l_current_data,l_tcp->m_nb_mcc_records,1); /* Nmco : only one tranform stage*/
++l_current_data;
l_mcc_record = l_tcp->m_mcc_records;
for
(i=0;i<l_tcp->m_nb_mcc_records;++i)
{
opj_write_bytes(l_current_data,l_mcc_record->m_index,1); /* Imco -> use the mcc indicated by 1*/
++l_current_data;
++l_mcc_record;
}
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_mco_size,p_manager) != l_mco_size)
{
return false;
}
return 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.
*/
bool j2k_read_mco (
opj_j2k_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_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_image;
l_tcp = p_j2k->m_specific_param.m_decoder.m_state == J2K_DEC_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(p_manager, EVT_ERROR, "Error reading MCO marker\n");
return 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(p_manager, EVT_WARNING, "Cannot take in charge multiple transformation stages.\n");
return true;
}
if
(p_header_size != l_nb_stages + 1)
{
opj_event_msg(p_manager, EVT_WARNING, "Error reading MCO marker\n");
return 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_image,l_tmp))
{
return false;
}
}
return true;
}
bool j2k_add_mct(opj_tcp_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 true;
}
if
(l_mcc_record->m_nb_comps != p_image->numcomps)
{
/** do not support number of comps != image */
return 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 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 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 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 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 true;
}
/**
* Writes the MCT marker (Multiple Component Transform)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_mct_data_group(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
opj_simple_mcc_decorrelation_data_t * l_mcc_record;
opj_mct_data_t * l_mct_record;
opj_tcp_t * l_tcp;
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
if
(! j2k_write_cbd(p_j2k,p_stream,p_manager))
{
return false;
}
l_tcp = &(p_j2k->m_cp.tcps[p_j2k->m_current_tile_number]);
l_mct_record = l_tcp->m_mct_records;
for
(i=0;i<l_tcp->m_nb_mct_records;++i)
{
if
(! j2k_write_mct_record(p_j2k,l_mct_record,p_stream,p_manager))
{
return false;
}
++l_mct_record;
}
l_mcc_record = l_tcp->m_mcc_records;
for
(i=0;i<l_tcp->m_nb_mcc_records;++i)
{
if
(! j2k_write_mcc_record(p_j2k,l_mcc_record,p_stream,p_manager))
{
return false;
}
++l_mcc_record;
}
if
(! j2k_write_mco(p_j2k,p_stream,p_manager))
{
return false;
}
return true;
}
/**
* Writes the POC marker (Progression Order Change)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_poc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_nb_comp;
OPJ_UINT32 l_nb_poc;
OPJ_UINT32 l_poc_size;
OPJ_UINT32 l_written_size = 0;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
OPJ_UINT32 l_poc_room;
// 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];
l_tccp = &l_tcp->tccps[0];
l_nb_comp = p_j2k->m_image->numcomps;
l_nb_poc = 1 + l_tcp->numpocs;
if
(l_nb_comp <= 256)
{
l_poc_room = 1;
}
else
{
l_poc_room = 2;
}
l_poc_size = 4 + (5 + 2 * l_poc_room) * l_nb_poc;
if
(l_poc_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_poc_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_poc_size;
}
j2k_write_poc_in_memory(p_j2k,p_j2k->m_specific_param.m_encoder.m_header_tile_data,&l_written_size,p_manager);
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_poc_size,p_manager) != l_poc_size)
{
return false;
}
return true;
}
/**
* Writes EPC ????
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_epc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
opj_codestream_info_t * l_info = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_info = p_j2k->cstr_info;
if
(l_info)
{
l_info->codestream_size = opj_stream_tell(p_stream);
/* 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 */
l_info->codestream_size -= l_info->main_head_start;
/* <<UniPG */
}
#ifdef USE_JPWL
/*
preparation of JPWL marker segments
*/
if(cp->epc_on) {
/* encode according to JPWL */
jpwl_encode(p_j2k, p_stream, image);
}
#endif /* USE_JPWL */
return true;
}
/**
* Gets the maximum size taken by the writting of a POC.
*/
OPJ_UINT32 j2k_get_max_poc_size(opj_j2k_t *p_j2k)
{
opj_tcp_t * l_tcp = 00;
OPJ_UINT32 l_nb_tiles = 0;
OPJ_UINT32 l_max_poc = 0;
OPJ_UINT32 i;
l_tcp = p_j2k->m_cp.tcps;
l_nb_tiles = p_j2k->m_cp.th * p_j2k->m_cp.tw;
for
(i=0;i<l_nb_tiles;++i)
{
l_max_poc = uint_max(l_max_poc,l_tcp->numpocs);
++l_tcp;
}
++l_max_poc;
return 4 + 9 * l_max_poc;
}
/**
* Writes the POC marker (Progression Order Change)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
void j2k_write_poc_in_memory(
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_nb_comp;
OPJ_UINT32 l_nb_poc;
OPJ_UINT32 l_poc_size;
opj_image_t *l_image = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
opj_poc_t *l_current_poc = 00;
OPJ_UINT32 l_poc_room;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
l_tcp = &p_j2k->m_cp.tcps[p_j2k->m_current_tile_number];
l_tccp = &l_tcp->tccps[0];
l_image = p_j2k->m_image;
l_nb_comp = l_image->numcomps;
l_nb_poc = 1 + l_tcp->numpocs;
if
(l_nb_comp <= 256)
{
l_poc_room = 1;
}
else
{
l_poc_room = 2;
}
l_poc_size = 4 + (5 + 2 * l_poc_room) * l_nb_poc;
l_current_data = p_data;
opj_write_bytes(l_current_data,J2K_MS_POC,2); /* POC */
l_current_data += 2;
opj_write_bytes(l_current_data,l_poc_size-2,2); /* Lpoc */
l_current_data += 2;
l_current_poc = l_tcp->pocs;
for
(i = 0; i < l_nb_poc; ++i)
{
opj_write_bytes(l_current_data,l_current_poc->resno0,1); /* RSpoc_i */
++l_current_data;
opj_write_bytes(l_current_data,l_current_poc->compno0,l_poc_room); /* CSpoc_i */
l_current_data+=l_poc_room;
opj_write_bytes(l_current_data,l_current_poc->layno1,2); /* LYEpoc_i */
l_current_data+=2;
opj_write_bytes(l_current_data,l_current_poc->resno1,1); /* REpoc_i */
++l_current_data;
opj_write_bytes(l_current_data,l_current_poc->compno1,l_poc_room); /* CEpoc_i */
l_current_data+=l_poc_room;
opj_write_bytes(l_current_data,l_current_poc->prg,1); /* Ppoc_i */
++l_current_data;
/* change the value of the max layer according to the actual number of layers in the file, components and resolutions*/
l_current_poc->layno1 = int_min(l_current_poc->layno1, l_tcp->numlayers);
l_current_poc->resno1 = int_min(l_current_poc->resno1, l_tccp->numresolutions);
l_current_poc->compno1 = int_min(l_current_poc->compno1, l_nb_comp);
++l_current_poc;
}
* p_data_written = l_poc_size;
}
/**
* 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.
*/
bool j2k_read_poc (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
OPJ_UINT32 l_nb_comp;
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;
OPJ_UINT32 l_tmp;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_poc_t *l_current_poc = 00;
OPJ_UINT32 l_comp_room;
// preconditions
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_image = p_j2k->m_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(p_manager, EVT_ERROR, "Error reading POC marker\n");
return false;
}
l_cp = &(p_j2k->m_cp);
l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_DEC_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 true;
}
/**
* Writes the RGN marker (Region Of Interest)
*
* @param p_tile_no the tile to output
* @param p_comp_no the component to output
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_rgn(
opj_j2k_t *p_j2k,
OPJ_UINT32 p_tile_no,
OPJ_UINT32 p_comp_no,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_nb_comp;
OPJ_UINT32 l_rgn_size;
opj_image_t *l_image = 00;
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
opj_tccp_t *l_tccp = 00;
OPJ_UINT32 l_comp_room;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_tile_no];
l_tccp = &l_tcp->tccps[p_comp_no];
l_nb_comp = l_image->numcomps;
if
(l_nb_comp <= 256)
{
l_comp_room = 1;
}
else
{
l_comp_room = 2;
}
l_rgn_size = 6 + l_comp_room;
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
opj_write_bytes(l_current_data,J2K_MS_RGN,2); /* RGN */
l_current_data += 2;
opj_write_bytes(l_current_data,l_rgn_size-2,2); /* Lrgn */
l_current_data += 2;
opj_write_bytes(l_current_data,p_comp_no,l_comp_room); /* Crgn */
l_current_data+=l_comp_room;
opj_write_bytes(l_current_data, 0,1); /* Srgn */
++l_current_data;
opj_write_bytes(l_current_data, l_tccp->roishift,1); /* SPrgn */
++l_current_data;
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_rgn_size,p_manager) != l_rgn_size)
{
return false;
}
return true;
}
/**
* 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.
*/
bool j2k_read_rgn (
opj_j2k_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_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
OPJ_UINT32 l_comp_room;
OPJ_UINT32 l_comp_no;
OPJ_UINT32 l_roi_sty;
// preconditions
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
l_image = p_j2k->m_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(p_manager, EVT_ERROR, "Error reading RGN marker\n");
return false;
}
l_cp = &(p_j2k->m_cp);
l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_DEC_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 (p_j2k->m_cp->correct) {
/* totlen is negative or larger than the bytes left!!! */
if (compno >= numcomps) {
opj_event_msg(p_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(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
}
};
#endif /* USE_JPWL */
opj_read_bytes(p_header_data,(OPJ_UINT32 *) (&(l_tcp->tccps[l_comp_no].roishift)),1); /* SPrgn */
++p_header_data;
return true;
}
/**
* Writes the TLM marker (Tile Length Marker)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_tlm(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_tlm_size;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_tlm_size = 6 + (5*p_j2k->m_specific_param.m_encoder.m_total_tile_parts);
if
(l_tlm_size > p_j2k->m_specific_param.m_encoder.m_header_tile_data_size)
{
p_j2k->m_specific_param.m_encoder.m_header_tile_data
= (OPJ_BYTE*)opj_realloc(
p_j2k->m_specific_param.m_encoder.m_header_tile_data,
l_tlm_size);
if
(! p_j2k->m_specific_param.m_encoder.m_header_tile_data)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = l_tlm_size;
}
l_current_data = p_j2k->m_specific_param.m_encoder.m_header_tile_data;
/* change the way data is written to avoid seeking if possible */
// TODO
p_j2k->m_specific_param.m_encoder.m_tlm_start = opj_stream_tell(p_stream);
opj_write_bytes(l_current_data,J2K_MS_TLM,2); /* TLM */
l_current_data += 2;
opj_write_bytes(l_current_data,l_tlm_size-2,2); /* Lpoc */
l_current_data += 2;
opj_write_bytes(l_current_data,0,1); /* Ztlm=0*/
++l_current_data;
opj_write_bytes(l_current_data,0x50,1); /* Stlm ST=1(8bits-255 tiles max),SP=1(Ptlm=32bits) */
++l_current_data;
/* do nothing on the 5 * l_j2k->m_specific_param.m_encoder.m_total_tile_parts remaining data */
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,l_tlm_size,p_manager) != l_tlm_size)
{
return false;
}
return true;
}
/**
* 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.
*/
bool j2k_read_tlm (
opj_j2k_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(p_manager, EVT_ERROR, "Error reading TLM marker\n");
return 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(p_manager, EVT_ERROR, "Error reading TLM marker\n");
return false;
}
/* 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 true;
}
/**
* 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.
*/
bool j2k_read_crg (
opj_j2k_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_image->numcomps;
if
(p_header_size != l_nb_comp *4)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading CRG marker\n");
return 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 true;
}
/**
* 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.
*/
bool j2k_read_plm (
opj_j2k_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(p_manager, EVT_ERROR, "Error reading PLM marker\n");
return 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 true;
}
/**
* 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.
*/
bool j2k_read_plt (
opj_j2k_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(p_manager, EVT_ERROR, "Error reading PLM marker\n");
return 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); // 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 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.
*/
bool j2k_read_ppm (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
{
opj_cp_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(p_manager, EVT_ERROR, "Error reading RGN marker\n");
return 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(p_manager, EVT_ERROR, "Error reading PPM marker\n");
return false;
}
// read a N_ppm
opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm */
p_header_data+=4;
p_header_size-=4;
/* First PPM marker */
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);
l_cp->ppm_data = l_cp->ppm_buffer;
if
(l_cp->ppm_buffer == 00)
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n");
return false;
}
memset(l_cp->ppm_buffer,0,l_cp->ppm_len);
}
while
(true)
{
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);
l_cp->ppm_data = l_cp->ppm_buffer;
if
(l_cp->ppm_buffer == 00)
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n");
return false;
}
memset(l_cp->ppm_buffer+l_cp->ppm_data_size,0,l_N_ppm);
}
else
{
return 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 true;
}
/**
* 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.
*/
bool j2k_read_ppt (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
{
opj_cp_t *l_cp = 00;
opj_tcp_t *l_tcp = 00;
OPJ_UINT32 l_Z_ppt;
// preconditions
assert(p_header_data != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
if
(p_header_size < 1)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading PPT marker\n");
return false;
}
l_cp = &(p_j2k->m_cp);
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;
// first PPM marker
if
(l_Z_ppt == 0)
{
/* First PPM marker */
l_tcp->ppt_len = p_header_size;
l_tcp->ppt_data_size = 0;
l_tcp->ppt_buffer = (OPJ_BYTE *) opj_malloc(l_tcp->ppt_len);
l_tcp->ppt_data = l_tcp->ppt_buffer;
if
(l_tcp->ppt_buffer == 00)
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory reading PPT marker\n");
return false;
}
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(p_manager, EVT_ERROR, "Not enough memory reading PPT marker\n");
return false;
}
l_tcp->ppt_data = l_tcp->ppt_buffer;
memset(l_tcp->ppt_buffer+l_tcp->ppt_data_size,0,p_header_size);
}
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 true;
}
/**
* Writes the SOT marker (Start of tile-part)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_sot(
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
const struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
opj_write_bytes(p_data,J2K_MS_SOT,2); /* SOT */
p_data += 2;
opj_write_bytes(p_data,10,2); /* Lsot */
p_data += 2;
opj_write_bytes(p_data, p_j2k->m_current_tile_number,2); /* Isot */
p_data += 2;
/* Psot */
p_data += 4;
opj_write_bytes(p_data, p_j2k->m_specific_param.m_encoder.m_current_tile_part_number,1); /* TPsot */
++p_data;
opj_write_bytes(p_data, p_j2k->m_cp.tcps[p_j2k->m_current_tile_number].m_nb_tile_parts,1); /* TNsot */
++p_data;
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(p_j2k->cstr_info, J2K_MS_SOT, p_j2k->sot_start, len + 2);
#endif /* USE_JPWL */
* p_data_written = 12;
return true;
}
/**
* 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.
*/
bool j2k_read_sot (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_header_data,
OPJ_UINT32 p_header_size,
struct opj_event_mgr * p_manager
)
{
opj_cp_t *l_cp = 00;
opj_tcp_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);
if
(p_header_size != 8)
{
opj_event_msg(p_manager, EVT_ERROR, "Error reading SOT marker\n");
return 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 (p_j2k->m_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(p_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(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
tileno = backup_tileno;
opj_event_msg(p_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 */
/* look for the tile in the list of already processed tile (in parts). */
/* Optimization possible here with a more complex data structure and with the removing of tiles */
/* since the time taken by this function can only grow at the time */
opj_read_bytes(p_header_data,&l_tot_len,4); /* Psot */
p_header_data+=4;
#ifdef USE_JPWL
if (p_j2k->m_cp->correct) {
/* totlen is negative or larger than the bytes left!!! */
if ((totlen < 0) || (totlen > (p_stream_numbytesleft(p_stream) + 8))) {
opj_event_msg(p_j2k->cinfo, EVT_ERROR,
"JPWL: bad tile byte size (%d bytes against %d bytes left)\n",
totlen, p_stream_numbytesleft(p_stream) + 8);
if (!JPWL_ASSUME) {
opj_event_msg(p_j2k->cinfo, EVT_ERROR, "JPWL: giving up\n");
return;
}
/* we try to correct */
totlen = 0;
opj_event_msg(p_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
(!l_tot_len)
{
opj_event_msg(p_manager, EVT_ERROR, "Cannot read data with no size known, giving up\n");
return false;
}
opj_read_bytes(p_header_data,&l_current_part ,1); /* Psot */
++p_header_data;
opj_read_bytes(p_header_data,&l_num_parts ,1); /* Psot */
++p_header_data;
if
(l_num_parts != 0)
{
l_tcp->m_nb_tile_parts = l_num_parts;
}
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;
}
}
p_j2k->m_specific_param.m_decoder.m_sot_length = l_tot_len - 12;
p_j2k->m_specific_param.m_decoder.m_state = J2K_DEC_STATE_TPH;
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);
/* Index */
/* move this onto a separate method to call before reading any SOT */
/*if
TODO
(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 true;
}
/**
* Writes the SOD marker (Start of data)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_sod(
opj_j2k_t *p_j2k,
struct opj_tcd * p_tile_coder,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
OPJ_UINT32 p_total_data_size,
const struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
opj_tcp_t *l_tcp = 00;
opj_codestream_info_t *l_cstr_info = 00;
opj_cp_t *l_cp = 00;
OPJ_UINT32 l_size_tile;
OPJ_UINT32 l_remaining_data;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
opj_write_bytes(p_data,J2K_MS_SOD,2); /* SOD */
p_data += 2;
/* make room for the EOF marker */
l_remaining_data = p_total_data_size - 4;
l_cp = &(p_j2k->m_cp);
l_tcp = &l_cp->tcps[p_j2k->m_current_tile_number];
l_cstr_info = p_j2k->cstr_info;
/* update tile coder */
p_tile_coder->tp_num = p_j2k->m_specific_param.m_encoder.m_current_poc_tile_part_number ;
p_tile_coder->cur_tp_num = p_j2k->m_specific_param.m_encoder.m_current_tile_part_number;
l_size_tile = l_cp->th * l_cp->tw;
/* INDEX >> */
if
(l_cstr_info)
{
if
(!p_j2k->m_specific_param.m_encoder.m_current_tile_part_number )
{
//TODO cstr_info->tile[p_j2k->m_current_tile_number].end_header = p_stream_tell(p_stream) + p_j2k->pos_correction - 1;
l_cstr_info->tile[p_j2k->m_current_tile_number].tileno = p_j2k->m_current_tile_number;
}
else
{
/*
TODO
if
(cstr_info->tile[p_j2k->m_current_tile_number].packet[cstr_info->packno - 1].end_pos < p_stream_tell(p_stream))
{
cstr_info->tile[p_j2k->m_current_tile_number].packet[cstr_info->packno].start_pos = p_stream_tell(p_stream);
}*/
}
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(p_j2k->cstr_info, J2K_MS_SOD, p_j2k->sod_start, 2);
#endif /* USE_JPWL */
/* <<UniPG */
}
/* << INDEX */
if
(p_j2k->m_specific_param.m_encoder.m_current_tile_part_number == 0)
{
p_tile_coder->tcd_image->tiles->packno = 0;
if
(l_cstr_info)
{
l_cstr_info->packno = 0;
}
}
*p_data_written = 0;
if
(! tcd_encode_tile(p_tile_coder, p_j2k->m_current_tile_number, p_data, p_data_written, l_remaining_data , l_cstr_info))
{
opj_event_msg(p_manager, EVT_ERROR, "Cannot encode tile\n");
return false;
}
*p_data_written += 2;
return true;
}
/**
* Updates the Tile Length Marker.
*/
void j2k_update_tlm (
opj_j2k_t * p_j2k,
OPJ_UINT32 p_tile_part_size
)
{
opj_write_bytes(p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_current,p_j2k->m_current_tile_number,1); /* PSOT */
++p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_current;
opj_write_bytes(p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_current,p_tile_part_size,4); /* PSOT */
p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_current += 4;
}
/**
* 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.
*/
bool j2k_read_sod (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_current_read_size;
opj_codestream_info_t * l_cstr_info = 00;
OPJ_BYTE ** l_current_data = 00;
opj_tcp_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]);
p_j2k->m_specific_param.m_decoder.m_sot_length -= 2;
l_cstr_info = p_j2k->cstr_info;
l_current_data = &(l_tcp->m_data);
l_tile_len = &l_tcp->m_data_size;
if
(! *l_current_data)
{
*l_current_data = (OPJ_BYTE*) my_opj_malloc(p_j2k->m_specific_param.m_decoder.m_sot_length);
}
else
{
*l_current_data = (OPJ_BYTE*) my_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(p_manager, EVT_ERROR, "Cannot decode tile\n");
return false;
}
/* Index */
if
(l_cstr_info)
{
OPJ_SIZE_T l_current_pos = opj_stream_tell(p_stream)-1;
l_cstr_info->tile[p_j2k->m_current_tile_number].tp[p_j2k->m_specific_param.m_encoder.m_current_tile_part_number].tp_end_header = l_current_pos;
if
(p_j2k->m_specific_param.m_encoder.m_current_tile_part_number == 0)
{
l_cstr_info->tile[p_j2k->m_current_tile_number].end_header = l_current_pos;
}
l_cstr_info->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_DEC_STATE_NEOC;
}
else
{
p_j2k->m_specific_param.m_decoder.m_state = J2K_DEC_STATE_TPHSOT;
}
*l_tile_len += l_current_read_size;
return true;
}
/**
* Writes the EOC marker (End of Codestream)
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_eoc(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
opj_write_bytes(p_j2k->m_specific_param.m_encoder.m_header_tile_data,J2K_MS_EOC,2); /* EOC */
/* UniPG>> */
#ifdef USE_JPWL
/* update markers struct */
j2k_add_marker(p_j2k->cstr_info, J2K_MS_EOC, p_stream_tell(p_stream) - 2, 2);
#endif /* USE_JPWL */
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_header_tile_data,2,p_manager) != 2)
{
return false;
}
if
(! opj_stream_flush(p_stream,p_manager))
{
return false;
}
return true;
}
/**
* Inits the Info
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_init_info(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
opj_codestream_info_t * l_cstr_info = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_cstr_info = p_j2k->cstr_info;
if
(l_cstr_info)
{
OPJ_UINT32 compno;
l_cstr_info->tile = (opj_tile_info_t *) opj_malloc(p_j2k->m_cp.tw * p_j2k->m_cp.th * sizeof(opj_tile_info_t));
l_cstr_info->image_w = p_j2k->m_image->x1 - p_j2k->m_image->x0;
l_cstr_info->image_h = p_j2k->m_image->y1 - p_j2k->m_image->y0;
l_cstr_info->prog = (&p_j2k->m_cp.tcps[0])->prg;
l_cstr_info->tw = p_j2k->m_cp.tw;
l_cstr_info->th = p_j2k->m_cp.th;
l_cstr_info->tile_x = p_j2k->m_cp.tdx; /* new version parser */
l_cstr_info->tile_y = p_j2k->m_cp.tdy; /* new version parser */
l_cstr_info->tile_Ox = p_j2k->m_cp.tx0; /* new version parser */
l_cstr_info->tile_Oy = p_j2k->m_cp.ty0; /* new version parser */
l_cstr_info->numcomps = p_j2k->m_image->numcomps;
l_cstr_info->numlayers = (&p_j2k->m_cp.tcps[0])->numlayers;
l_cstr_info->numdecompos = (OPJ_INT32*) opj_malloc(p_j2k->m_image->numcomps * sizeof(OPJ_INT32));
for (compno=0; compno < p_j2k->m_image->numcomps; compno++) {
l_cstr_info->numdecompos[compno] = (&p_j2k->m_cp.tcps[0])->tccps->numresolutions - 1;
}
l_cstr_info->D_max = 0.0; /* ADD Marcela */
l_cstr_info->main_head_start = opj_stream_tell(p_stream); /* position of SOC */
l_cstr_info->maxmarknum = 100;
l_cstr_info->marker = (opj_marker_info_t *) opj_malloc(l_cstr_info->maxmarknum * sizeof(opj_marker_info_t));
l_cstr_info->marknum = 0;
}
return j2k_calculate_tp(p_j2k,&(p_j2k->m_cp),&p_j2k->m_specific_param.m_encoder.m_total_tile_parts,p_j2k->m_image,p_manager);
}
/**
* Creates a tile-coder decoder.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_create_tcd(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
p_j2k->m_tcd = tcd_create(false);
if
(! p_j2k->m_tcd)
{
opj_event_msg(p_manager, EVT_ERROR, "Not enough memory to create Tile Coder\n");
return false;
}
if
(! tcd_init(p_j2k->m_tcd,p_j2k->m_image,&p_j2k->m_cp))
{
tcd_destroy(p_j2k->m_tcd);
p_j2k->m_tcd = 00;
return false;
}
return true;
}
OPJ_FLOAT32 get_tp_stride (opj_tcp_t * p_tcp)
{
return (OPJ_FLOAT32) ((p_tcp->m_nb_tile_parts - 1) * 14);
}
OPJ_FLOAT32 get_default_stride (opj_tcp_t * p_tcp)
{
return 0;
}
/**
* Updates the rates of the tcp.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_update_rates(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
opj_cp_t * l_cp = 00;
opj_image_t * l_image = 00;
opj_tcp_t * l_tcp = 00;
opj_image_comp_t * l_img_comp = 00;
OPJ_UINT32 i,j,k;
OPJ_INT32 l_x0,l_y0,l_x1,l_y1;
OPJ_FLOAT32 * l_rates = 0;
OPJ_FLOAT32 l_sot_remove;
OPJ_UINT32 l_bits_empty, l_size_pixel;
OPJ_UINT32 l_tile_size = 0;
OPJ_UINT32 l_last_res;
OPJ_FLOAT32 (* l_tp_stride_func)(opj_tcp_t *) = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_cp = &(p_j2k->m_cp);
l_image = p_j2k->m_image;
l_tcp = l_cp->tcps;
l_bits_empty = 8 * l_image->comps->dx * l_image->comps->dy;
l_size_pixel = l_image->numcomps * l_image->comps->prec;
l_sot_remove = ((OPJ_FLOAT32) opj_stream_tell(p_stream)) / (l_cp->th * l_cp->tw);
if
(l_cp->m_specific_param.m_enc.m_tp_on)
{
l_tp_stride_func = get_tp_stride;
}
else
{
l_tp_stride_func = get_default_stride;
}
for
(i=0;i<l_cp->th;++i)
{
for
(j=0;j<l_cp->tw;++j)
{
OPJ_FLOAT32 l_offset = ((*l_tp_stride_func)(l_tcp)) / l_tcp->numlayers;
/* 4 borders of the tile rescale on the image if necessary */
l_x0 = int_max(l_cp->tx0 + j * l_cp->tdx, l_image->x0);
l_y0 = int_max(l_cp->ty0 + i * l_cp->tdy, l_image->y0);
l_x1 = int_min(l_cp->tx0 + (j + 1) * l_cp->tdx, l_image->x1);
l_y1 = int_min(l_cp->ty0 + (i + 1) * l_cp->tdy, l_image->y1);
l_rates = l_tcp->rates;
/* Modification of the RATE >> */
if
(*l_rates)
{
*l_rates = (( (float) (l_size_pixel * (l_x1 - l_x0) * (l_y1 - l_y0)))
/
((*l_rates) * l_bits_empty)
)
-
l_offset;
}
++l_rates;
for
(k = 1; k < l_tcp->numlayers; ++k)
{
if
(*l_rates)
{
*l_rates = (( (OPJ_FLOAT32) (l_size_pixel * (l_x1 - l_x0) * (l_y1 - l_y0)))
/
((*l_rates) * l_bits_empty)
)
-
l_offset;
}
++l_rates;
}
++l_tcp;
}
}
l_tcp = l_cp->tcps;
for
(i=0;i<l_cp->th;++i)
{
for
(j=0;j<l_cp->tw;++j)
{
l_rates = l_tcp->rates;
if
(*l_rates)
{
*l_rates -= l_sot_remove;
if
(*l_rates < 30)
{
*l_rates = 30;
}
}
++l_rates;
l_last_res = l_tcp->numlayers - 1;
for
(k = 1; k < l_last_res; ++k)
{
if
(*l_rates)
{
*l_rates -= l_sot_remove;
if
(*l_rates < *(l_rates - 1) + 10)
{
*l_rates = (*(l_rates - 1)) + 20;
}
}
++l_rates;
}
if
(*l_rates)
{
*l_rates -= (l_sot_remove + 2.f);
if
(*l_rates < *(l_rates - 1) + 10)
{
*l_rates = (*(l_rates - 1)) + 20;
}
}
++l_tcp;
}
}
l_img_comp = l_image->comps;
l_tile_size = 0;
for
(i=0;i<l_image->numcomps;++i)
{
l_tile_size += ( uint_ceildiv(l_cp->tdx,l_img_comp->dx)
*
uint_ceildiv(l_cp->tdy,l_img_comp->dy)
*
l_img_comp->prec
);
++l_img_comp;
}
l_tile_size = (OPJ_UINT32) (l_tile_size * 0.1625); /* 1.3/8 = 0.1625 */
l_tile_size += j2k_get_specific_header_sizes(p_j2k);
p_j2k->m_specific_param.m_encoder.m_encoded_tile_size = l_tile_size;
p_j2k->m_specific_param.m_encoder.m_encoded_tile_data = (OPJ_BYTE *) my_opj_malloc(p_j2k->m_specific_param.m_encoder.m_encoded_tile_size);
if
(p_j2k->m_specific_param.m_encoder.m_encoded_tile_data == 00)
{
return false;
}
if
(l_cp->m_specific_param.m_enc.m_cinema)
{
p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer = (OPJ_BYTE *) opj_malloc(5*p_j2k->m_specific_param.m_encoder.m_total_tile_parts);
if
(! p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer)
{
return false;
}
p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_current = p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer;
}
return true;
}
/**
* 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.
*/
bool j2k_read_eoc (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 i;
opj_tcd_t * l_tcd = 00;
OPJ_UINT32 l_nb_tiles;
opj_tcp_t * l_tcp = 00;
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(true);
if
(l_tcd == 00)
{
opj_event_msg(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n");
return false;
}
for
(i = 0; i < l_nb_tiles; ++i)
{
if
(l_tcp->m_data)
{
if
(! tcd_init_decode_tile(l_tcd, i))
{
tcd_destroy(l_tcd);
opj_event_msg(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n");
return false;
}
l_success = tcd_decode_tile(l_tcd, l_tcp->m_data, l_tcp->m_data_size, i, p_j2k->cstr_info);
/* cleanup */
if
(! l_success)
{
p_j2k->m_specific_param.m_decoder.m_state |= J2K_DEC_STATE_ERR;
break;
}
}
j2k_tcp_destroy(l_tcp);
++l_tcp;
}
tcd_destroy(l_tcd);
return true;
}
/**
* Writes the image components.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_image_components(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 compno;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
for
(compno = 1; compno < p_j2k->m_image->numcomps; ++compno)
{
if
(! j2k_write_coc(p_j2k,compno,p_stream, p_manager))
{
return false;
}
if
(! j2k_write_qcc(p_j2k,compno,p_stream, p_manager))
{
return false;
}
}
return true;
}
/**
* Writes regions of interests.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_regions(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 compno;
const opj_tccp_t *l_tccp = 00;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_tccp = p_j2k->m_cp.tcps->tccps;
for
(compno = 0; compno < p_j2k->m_image->numcomps; ++compno)
{
if
(l_tccp->roishift)
{
if
(! j2k_write_rgn(p_j2k,0,compno,p_stream,p_manager))
{
return false;
}
}
++l_tccp;
}
return true;
}
/**
* Writes the updated tlm.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_write_updated_tlm(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 l_tlm_size;
OPJ_SIZE_T l_tlm_position, l_current_position;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
l_tlm_size = 5 * p_j2k->m_specific_param.m_encoder.m_total_tile_parts;
l_tlm_position = 6 + p_j2k->m_specific_param.m_encoder.m_tlm_start;
l_current_position = opj_stream_tell(p_stream);
if
(! opj_stream_seek(p_stream,l_tlm_position,p_manager))
{
return false;
}
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer,l_tlm_size,p_manager) != l_tlm_size)
{
return false;
}
if
(! opj_stream_seek(p_stream,l_current_position,p_manager))
{
return false;
}
return true;
}
/**
* Ends the encoding, i.e. frees memory.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_end_encoding(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
tcd_destroy(p_j2k->m_tcd);
p_j2k->m_tcd = 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 = 0;
p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_current = 0;
}
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 = 0;
}
p_j2k->m_specific_param.m_encoder.m_encoded_tile_size = 0;
return true;
}
/**
* Gets the offset of the header.
*
* @param p_stream the stream to write data to.
* @param p_j2k J2K codec.
* @param p_manager the user event manager.
*/
bool j2k_get_end_header(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
p_j2k->cstr_info->main_head_end = opj_stream_tell(p_stream);
return true;
}
/**
* 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.
*/
bool j2k_read_unk (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_BYTE l_data [2];
OPJ_UINT32 l_unknown_size;
// preconditions
assert(p_j2k != 00);
assert(p_manager != 00);
assert(p_stream != 00);
opj_event_msg(p_manager, EVT_WARNING, "Unknown marker\n");
#ifdef USE_JPWL
if (p_j2k->m_cp->correct) {
OPJ_INT32 m = 0, id, i;
OPJ_INT32 min_id = 0, min_dist = 17, cur_dist = 0, tmp_id;
p_stream_seek(p_j2k->p_stream, p_stream_tell(p_j2k->p_stream) - 2);
id = p_stream_read(p_j2k->p_stream, 2);
opj_event_msg(p_j2k->cinfo, EVT_ERROR,
"JPWL: really don't know this marker %x\n",
id);
if (!JPWL_ASSUME) {
opj_event_msg(p_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(p_j2k->cinfo, EVT_ERROR,
"- marker %x is at distance %d from the read %x\n",
min_id, min_dist, id);
opj_event_msg(p_j2k->cinfo, EVT_ERROR,
"- trying to substitute in place and crossing fingers!\n");
p_stream_seek(p_j2k->p_stream, p_stream_tell(p_j2k->p_stream) - 2);
p_stream_write(p_j2k->p_stream, min_id, 2);
/* rewind */
p_stream_seek(p_j2k->p_stream, p_stream_tell(p_j2k->p_stream) - 2);
}
};
#endif /* USE_JPWL */
if
(opj_stream_read_data(p_stream,l_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_WARNING, "Unknown marker\n");
return false;
}
opj_read_bytes(l_data,&l_unknown_size,2);
if
(l_unknown_size < 2)
{
return false;
}
l_unknown_size-=2;
if
(opj_stream_skip(p_stream,l_unknown_size,p_manager) != l_unknown_size)
{
return false;
}
return 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;
}
}
return e;
}
/**
* Destroys a tile coding parameter structure.
*
* @param p_tcp the tile coding parameter to destroy.
*/
void j2k_tcp_destroy (opj_tcp_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;
}
if
(p_tcp->m_data)
{
opj_free(p_tcp->m_data);
p_tcp->m_data = 00;
}
}
/**
* Destroys a coding parameter structure.
*
* @param p_cp the coding parameter to destroy.
*/
void j2k_cp_destroy (opj_cp_t *p_cp)
{
OPJ_UINT32 l_nb_tiles;
opj_tcp_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;
}
}
}
/* ----------------------------------------------------------------------- */
/* J2K / JPT decoder interface */
/* ----------------------------------------------------------------------- */
/**
* Creates a J2K decompression structure.
*
* @return a handle to a J2K decompressor if successful, NULL otherwise.
*/
opj_j2k_t* j2k_create_decompress()
{
opj_j2k_t *l_j2k = (opj_j2k_t*) opj_malloc(sizeof(opj_j2k_t));
if
(!l_j2k)
{
return 00;
}
memset(l_j2k,0,sizeof(opj_j2k_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_t*) opj_malloc(sizeof(opj_tcp_t));
if
(!l_j2k->m_specific_param.m_decoder.m_default_tcp)
{
opj_free(l_j2k);
return 00;
}
memset(l_j2k->m_specific_param.m_decoder.m_default_tcp,0,sizeof(opj_tcp_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;
// 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_j2k_t* j2k_create_compress()
{
opj_j2k_t *l_j2k = (opj_j2k_t*) opj_malloc(sizeof(opj_j2k_t));
if
(!l_j2k)
{
return 00;
}
memset(l_j2k,0,sizeof(opj_j2k_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 00;
}
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 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;
}
/**
* Destroys a jpeg2000 codec.
*
* @param p_j2k the jpeg20000 structure to destroy.
*/
void j2k_destroy (opj_j2k_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(p_j2k->m_tcd);
j2k_cp_destroy(&(p_j2k->m_cp));
memset(&(p_j2k->m_cp),0,sizeof(opj_cp_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;
opj_free(p_j2k);
}
/**
* Starts a compression scheme, i.e. validates the codec parameters, writes the header.
*
* @param p_j2k the jpeg2000 codec.
* @param p_stream the stream object.
* @param p_manager the user event manager.
*
* @return true if the codec is valid.
*/
bool j2k_start_compress(
opj_j2k_t *p_j2k,
opj_stream_private_t *p_stream,
opj_image_t * p_image,
opj_event_mgr_t * p_manager)
{
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
p_j2k->m_image = p_image;
/* customization of the validation */
j2k_setup_encoding_validation (p_j2k);
/* validation of the parameters codec */
if
(! j2k_exec(p_j2k,p_j2k->m_validation_list,p_stream,p_manager))
{
return false;
}
/* customization of the encoding */
j2k_setup_header_writting(p_j2k);
/* write header */
if
(! j2k_exec (p_j2k,p_j2k->m_procedure_list,p_stream,p_manager))
{
return false;
}
return 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_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 procedures to do on decoding data. Developpers wanting to extend the library can add their own reading procedures.
*/
void j2k_setup_decoding (opj_j2k_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 */
}
/**
* Sets up the procedures to do on writting header. Developpers wanting to extend the library can add their own writting procedures.
*/
void j2k_setup_header_writting (opj_j2k_t *p_j2k)
{
// preconditions
assert(p_j2k != 00);
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_init_info );
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_soc );
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_siz );
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_cod );
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_qcd );
if
(p_j2k->m_cp.m_specific_param.m_enc.m_cinema)
{
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_image_components );
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_tlm );
if
(p_j2k->m_cp.m_specific_param.m_enc.m_cinema == CINEMA4K_24)
{
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_poc );
}
}
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_regions);
if
(p_j2k->m_cp.comment != 00)
{
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_com);
}
/* DEVELOPER CORNER, insert your custom procedures */
if
(p_j2k->m_cp.rsiz & MCT)
{
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_mct_data_group );
}
/* End of Developer Corner */
if
(p_j2k->cstr_info)
{
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_get_end_header );
}
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_create_tcd);
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_update_rates);
}
/**
* 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_end_compress (opj_j2k_t *p_j2k)
{
// preconditions
assert(p_j2k != 00);
/* DEVELOPER CORNER, insert your custom procedures */
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_eoc );
if
(p_j2k->m_cp.m_specific_param.m_enc.m_cinema)
{
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_updated_tlm);
}
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_write_epc );
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_end_encoding );
opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_destroy_header_memory);
}
/**
* 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_encoding_validation (opj_j2k_t *p_j2k)
{
// preconditions
assert(p_j2k != 00);
opj_procedure_list_add_procedure(p_j2k->m_validation_list, (void*)j2k_build_encoder);
opj_procedure_list_add_procedure(p_j2k->m_validation_list, (void*)j2k_encoding_validation);
/* DEVELOPER CORNER, add your custom validation procedure */
opj_procedure_list_add_procedure(p_j2k->m_validation_list, (void*)j2k_mct_validation);
}
/**
* 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_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 */
}
/**
* 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.
*/
bool j2k_exec (
opj_j2k_t * p_j2k,
opj_procedure_list_t * p_procedure_list,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
bool (** l_procedure) (opj_j2k_t * ,opj_stream_private_t *,opj_event_mgr_t *) = 00;
bool l_result = 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 = (bool (**) (opj_j2k_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;
}
/**
* The default encoding 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.
*/
bool j2k_encoding_validation (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
bool l_is_valid = true;
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
/* STATE checking */
/* make sure the state is at 0 */
l_is_valid &= (p_j2k->m_specific_param.m_decoder.m_state == J2K_DEC_STATE_NONE);
/* POINTER validation */
/* make sure a p_j2k codec 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);
if
((p_j2k->m_cp.tdx) < (OPJ_UINT32) (1 << p_j2k->m_cp.tcps->tccps->numresolutions))
{
opj_event_msg(p_manager, EVT_ERROR, "Number of resolutions is too high in comparison to the size of tiles\n");
return false;
}
if
((p_j2k->m_cp.tdy) < (OPJ_UINT32) (1 << p_j2k->m_cp.tcps->tccps->numresolutions))
{
opj_event_msg(p_manager, EVT_ERROR, "Number of resolutions is too high in comparison to the size of tiles\n");
return false;
}
/* PARAMETER VALIDATION */
return l_is_valid;
}
/**
* 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.
*/
bool j2k_decoding_validation (
opj_j2k_t *p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
bool l_is_valid = true;
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
/* STATE checking */
/* make sure the state is at 0 */
l_is_valid &= (p_j2k->m_specific_param.m_decoder.m_state == J2K_DEC_STATE_NONE);
/* 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;
}
/**
* The mct encoding validation procedure.
*
* @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.
*/
bool j2k_mct_validation (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
bool l_is_valid = true;
OPJ_UINT32 i,j;
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
if
((p_j2k->m_cp.rsiz & 0x8200) == 0x8200)
{
OPJ_UINT32 l_nb_tiles = p_j2k->m_cp.th * p_j2k->m_cp.tw;
opj_tcp_t * l_tcp = p_j2k->m_cp.tcps;
for
(i=0;i<l_nb_tiles;++i)
{
if
(l_tcp->mct == 2)
{
opj_tccp_t * l_tccp = l_tcp->tccps;
l_is_valid &= (l_tcp->m_mct_coding_matrix != 00);
for
(j=0;j<p_j2k->m_image->numcomps;++j)
{
l_is_valid &= ! (l_tccp->qmfbid & 1);
++l_tccp;
}
}
++l_tcp;
}
}
return l_is_valid;
}
/**
* Builds the cp decoder parameters to use to decode tile.
*/
bool j2k_build_decoder (
opj_j2k_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 true;
}
/**
* Builds the cp encoder parameters to use to encode tile.
*/
bool j2k_build_encoder (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
// add here initialization of cp
// copy paste of setup_encoder
return true;
}
bool j2k_copy_default_tcp_and_create_tcd
(
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
opj_tcp_t * l_tcp = 00;
opj_tcp_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 in debug
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
l_image = p_j2k->m_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
(i=0;i<l_nb_tiles;++i)
{
l_current_tccp = l_tcp->tccps;
memcpy(l_tcp,l_default_tcp, sizeof(opj_tcp_t));
l_tcp->ppt = 0;
l_tcp->ppt_data = 00;
l_tcp->tccps = l_current_tccp;
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 false;
}
memcpy(l_tcp->m_mct_decoding_matrix,l_default_tcp->m_mct_decoding_matrix,l_mct_size);
}
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 false;
}
memcpy(l_tcp->m_mct_records, l_default_tcp->m_mct_records,l_mct_records_size);
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 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;
}
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 false;
}
memcpy(l_tcp->m_mcc_records,l_default_tcp->m_mcc_records,l_mcc_records_size);
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;
}
memcpy(l_current_tccp,l_default_tcp->tccps,l_tccp_size);
++l_tcp;
}
p_j2k->m_tcd = tcd_create(true);
if
(! p_j2k->m_tcd )
{
return false;
}
if
(! tcd_init(p_j2k->m_tcd, l_image, &(p_j2k->m_cp)))
{
tcd_destroy(p_j2k->m_tcd);
p_j2k->m_tcd = 00;
opj_event_msg(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n");
return false;
}
return true;
}
/**
* Destroys the memory associated with the decoding of headers.
*/
bool j2k_destroy_header_memory (
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
// preconditions in debug
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 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 = 0;
}
p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = 0;
return true;
}
/**
* Sets up the decoder decoding parameters using user parameters.
* Decoding parameters are stored in p_j2k->m_cp.
*
* @param p_j2k J2K codec
* @param p_parameters decompression parameters
* @deprecated
*/
void j2k_setup_decoder(
opj_j2k_t *p_j2k,
opj_dparameters_t *p_parameters
)
{
if
(p_j2k && p_parameters)
{
/* create and initialize the coding parameters structure */
p_j2k->m_cp.m_specific_param.m_dec.m_reduce = p_parameters->cp_reduce;
p_j2k->m_cp.m_specific_param.m_dec.m_layer = p_parameters->cp_layer;
p_j2k->m_specific_param.m_decoder.m_discard_tiles = p_parameters->m_use_restrict_decode;
if
(p_parameters->m_use_restrict_decode)
{
p_j2k->m_specific_param.m_decoder.m_start_tile_x = p_parameters->m_decode_start_x;
p_j2k->m_specific_param.m_decoder.m_start_tile_y = p_parameters->m_decode_start_y;
p_j2k->m_specific_param.m_decoder.m_end_tile_x = p_parameters->m_decode_end_x;
p_j2k->m_specific_param.m_decoder.m_end_tile_y = p_parameters->m_decode_end_y;
}
#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 */
}
}
void j2k_setup_encoder(opj_j2k_t *p_j2k, opj_cparameters_t *parameters, opj_image_t *image, struct opj_event_mgr * p_manager) {
OPJ_UINT32 i, j, tileno, numpocs_tile;
opj_cp_t *cp = 00;
bool l_res;
if(!p_j2k || !parameters || ! image) {
return;
}
/* keep a link to cp so that we can destroy it later in j2k_destroy_compress */
cp = &(p_j2k->m_cp);
/* set default values for cp */
cp->tw = 1;
cp->th = 1;
/*
copy user encoding parameters
*/
cp->m_specific_param.m_enc.m_cinema = parameters->cp_cinema;
cp->m_specific_param.m_enc.m_max_comp_size = parameters->max_comp_size;
cp->rsiz = parameters->cp_rsiz;
cp->m_specific_param.m_enc.m_disto_alloc = parameters->cp_disto_alloc;
cp->m_specific_param.m_enc.m_fixed_alloc = parameters->cp_fixed_alloc;
cp->m_specific_param.m_enc.m_fixed_quality = parameters->cp_fixed_quality;
/* mod fixed_quality */
if
(parameters->cp_matrice)
{
size_t array_size = parameters->tcp_numlayers * parameters->numresolution * 3 * sizeof(OPJ_INT32);
cp->m_specific_param.m_enc.m_matrice = (OPJ_INT32 *) opj_malloc(array_size);
memcpy(cp->m_specific_param.m_enc.m_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->m_specific_param.m_enc.m_tp_flag = parameters->tp_flag;
cp->m_specific_param.m_enc.m_tp_on = 1;
}
#ifdef USE_JPWL
/*
calculate JPWL encoding parameters
*/
if (parameters->jpwl_epc_on) {
OPJ_INT32 i;
/* set JPWL on */
cp->epc_on = true;
cp->info_on = false; /* no informative technique */
/* set EPB on */
if ((parameters->jpwl_hprot_MH > 0) || (parameters->jpwl_hprot_TPH[0] > 0)) {
cp->epb_on = 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 = 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 = false;
} else {
cp->epc_on = false;
}
#endif /* USE_JPWL */
/* initialize the mutiple tiles */
/* ---------------------------- */
cp->tcps = (opj_tcp_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tcp_t));
if
(parameters->numpocs)
{
/* initialisation of POC */
l_res = j2k_check_poc_val(parameters->POC,parameters->numpocs, parameters->numresolution, image->numcomps, parameters->tcp_numlayers, p_manager);
// TODO
}
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->m_specific_param.m_enc.m_cinema){
if (cp->m_specific_param.m_enc.m_fixed_quality) {
tcp->distoratio[j] = parameters->tcp_distoratio[j];
}
tcp->rates[j] = parameters->tcp_rates[j];
}else{
if (cp->m_specific_param.m_enc.m_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;
// TODO
for (i = 0; i < (unsigned int) 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));
if
(parameters->mct_data)
{
OPJ_UINT32 lMctSize = image->numcomps * image->numcomps * sizeof(OPJ_FLOAT32);
OPJ_FLOAT32 * lTmpBuf = (OPJ_FLOAT32*)opj_malloc(lMctSize);
OPJ_INT32 * l_dc_shift = (OPJ_INT32 *) ((OPJ_BYTE *) parameters->mct_data + lMctSize);
tcp->mct = 2;
tcp->m_mct_coding_matrix = (OPJ_FLOAT32*)opj_malloc(lMctSize);
memcpy(tcp->m_mct_coding_matrix,parameters->mct_data,lMctSize);
memcpy(lTmpBuf,parameters->mct_data,lMctSize);
tcp->m_mct_decoding_matrix = (OPJ_FLOAT32*)opj_malloc(lMctSize);
assert(opj_matrix_inversion_f(lTmpBuf,(tcp->m_mct_decoding_matrix),image->numcomps));
tcp->mct_norms = (OPJ_FLOAT64*)
opj_malloc(image->numcomps * sizeof(OPJ_FLOAT64));
opj_calculate_norms(tcp->mct_norms,image->numcomps,tcp->m_mct_decoding_matrix);
opj_free(lTmpBuf);
for
(i = 0; i < image->numcomps; i++)
{
opj_tccp_t *tccp = &tcp->tccps[i];
tccp->m_dc_level_shift = l_dc_shift[i];
}
j2k_setup_mct_encoding(tcp,image);
}
else
{
for
(i = 0; i < image->numcomps; i++)
{
opj_tccp_t *tccp = &tcp->tccps[i];
opj_image_comp_t * l_comp = &(image->comps[i]);
if
(! l_comp->sgnd)
{
tccp->m_dc_level_shift = 1 << (l_comp->prec - 1);
}
}
}
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);
}
}
if
(parameters->mct_data)
{
opj_free(parameters->mct_data);
parameters->mct_data = 00;
}
}
bool j2k_write_first_tile_part (
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
OPJ_UINT32 p_total_data_size,
opj_stream_private_t *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 compno;
OPJ_UINT32 l_nb_bytes_written = 0;
OPJ_UINT32 l_current_nb_bytes_written;
OPJ_BYTE * l_begin_data = 00;
opj_tcp_t *l_tcp = 00;
opj_tcd_t * l_tcd = 00;
opj_cp_t * l_cp = 00;
l_tcd = p_j2k->m_tcd;
l_cp = &(p_j2k->m_cp);
l_tcp = l_cp->tcps + p_j2k->m_current_tile_number;
l_tcd->cur_pino = 0;
/*Get number of tile parts*/
p_j2k->m_specific_param.m_encoder.m_current_poc_tile_part_number = 0;
/* INDEX >> */
/* << INDEX */
l_current_nb_bytes_written = 0;
l_begin_data = p_data;
if
(! j2k_write_sot(p_j2k,p_data,&l_current_nb_bytes_written,p_stream,p_manager))
{
return false;
}
l_nb_bytes_written += l_current_nb_bytes_written;
p_data += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
if
(l_cp->m_specific_param.m_enc.m_cinema == 0)
{
for
(compno = 1; compno < p_j2k->m_image->numcomps; compno++)
{
l_current_nb_bytes_written = 0;
j2k_write_coc_in_memory(p_j2k,compno,p_data,&l_current_nb_bytes_written,p_manager);
l_nb_bytes_written += l_current_nb_bytes_written;
p_data += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
l_current_nb_bytes_written = 0;
j2k_write_qcc_in_memory(p_j2k,compno,p_data,&l_current_nb_bytes_written,p_manager);
l_nb_bytes_written += l_current_nb_bytes_written;
p_data += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
}
if
(l_cp->tcps[p_j2k->m_current_tile_number].numpocs)
{
l_current_nb_bytes_written = 0;
j2k_write_poc_in_memory(p_j2k,p_data,&l_current_nb_bytes_written,p_manager);
l_nb_bytes_written += l_current_nb_bytes_written;
p_data += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
}
}
l_current_nb_bytes_written = 0;
if
(! j2k_write_sod(p_j2k,l_tcd,p_data,&l_current_nb_bytes_written,p_total_data_size,p_stream,p_manager))
{
return false;
}
l_nb_bytes_written += l_current_nb_bytes_written;
* p_data_written = l_nb_bytes_written;
/* Writing Psot in SOT marker */
opj_write_bytes(l_begin_data + 6,l_nb_bytes_written,4); /* PSOT */
if
(l_cp->m_specific_param.m_enc.m_cinema)
{
j2k_update_tlm(p_j2k,l_nb_bytes_written);
}
return true;
}
bool j2k_write_all_tile_parts(
opj_j2k_t *p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 * p_data_written,
OPJ_UINT32 p_total_data_size,
opj_stream_private_t *p_stream,
struct opj_event_mgr * p_manager
)
{
OPJ_UINT32 tilepartno=0;
OPJ_UINT32 l_nb_bytes_written = 0;
OPJ_UINT32 l_current_nb_bytes_written;
OPJ_UINT32 l_part_tile_size;
OPJ_UINT32 tot_num_tp;
OPJ_UINT32 pino;
OPJ_BYTE * l_begin_data;
opj_tcp_t *l_tcp = 00;
opj_tcd_t * l_tcd = 00;
opj_cp_t * l_cp = 00;
l_tcd = p_j2k->m_tcd;
l_cp = &(p_j2k->m_cp);
l_tcp = l_cp->tcps + p_j2k->m_current_tile_number;
/*Get number of tile parts*/
tot_num_tp = j2k_get_num_tp(l_cp,0,p_j2k->m_current_tile_number);
for
(tilepartno = 1; tilepartno < tot_num_tp ; ++tilepartno)
{
p_j2k->m_specific_param.m_encoder.m_current_poc_tile_part_number = tilepartno;
l_current_nb_bytes_written = 0;
l_part_tile_size = 0;
l_begin_data = p_data;
if
(! j2k_write_sot(p_j2k,p_data,&l_current_nb_bytes_written,p_stream,p_manager))
{
return false;
}
l_nb_bytes_written += l_current_nb_bytes_written;
p_data += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
l_part_tile_size += l_nb_bytes_written;
l_current_nb_bytes_written = 0;
if
(! j2k_write_sod(p_j2k,l_tcd,p_data,&l_current_nb_bytes_written,p_total_data_size,p_stream,p_manager))
{
return false;
}
p_data += l_current_nb_bytes_written;
l_nb_bytes_written += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
l_part_tile_size += l_nb_bytes_written;
/* Writing Psot in SOT marker */
opj_write_bytes(l_begin_data + 6,l_part_tile_size,4); /* PSOT */
if
(l_cp->m_specific_param.m_enc.m_cinema)
{
j2k_update_tlm(p_j2k,l_part_tile_size);
}
++p_j2k->m_specific_param.m_encoder.m_current_tile_part_number;
}
for
(pino = 1; pino <= l_tcp->numpocs; ++pino)
{
l_tcd->cur_pino = pino;
/*Get number of tile parts*/
tot_num_tp = j2k_get_num_tp(l_cp,pino,p_j2k->m_current_tile_number);
for
(tilepartno = 0; tilepartno < tot_num_tp ; ++tilepartno)
{
p_j2k->m_specific_param.m_encoder.m_current_poc_tile_part_number = tilepartno;
l_current_nb_bytes_written = 0;
l_part_tile_size = 0;
l_begin_data = p_data;
if
(! j2k_write_sot(p_j2k,p_data,&l_current_nb_bytes_written,p_stream,p_manager))
{
return false;
}
l_nb_bytes_written += l_current_nb_bytes_written;
p_data += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
l_part_tile_size += l_current_nb_bytes_written;
l_current_nb_bytes_written = 0;
if
(! j2k_write_sod(p_j2k,l_tcd,p_data,&l_current_nb_bytes_written,p_total_data_size,p_stream,p_manager))
{
return false;
}
l_nb_bytes_written += l_current_nb_bytes_written;
p_data += l_current_nb_bytes_written;
p_total_data_size -= l_current_nb_bytes_written;
l_part_tile_size += l_current_nb_bytes_written;
/* Writing Psot in SOT marker */
opj_write_bytes(l_begin_data + 6,l_part_tile_size,4); /* PSOT */
if
(l_cp->m_specific_param.m_enc.m_cinema)
{
j2k_update_tlm(p_j2k,l_part_tile_size);
}
++p_j2k->m_specific_param.m_encoder.m_current_tile_part_number;
}
}
*p_data_written = l_nb_bytes_written;
return true;
}
bool j2k_pre_write_tile (
opj_j2k_t * p_j2k,
OPJ_UINT32 p_tile_index,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
if
(p_tile_index != p_j2k->m_current_tile_number)
{
opj_event_msg(p_manager, EVT_ERROR, "The given tile index does not match." );
return false;
}
opj_event_msg(p_manager, EVT_INFO, "tile number %d / %d\n", p_j2k->m_current_tile_number + 1, p_j2k->m_cp.tw * p_j2k->m_cp.th);
p_j2k->m_specific_param.m_encoder.m_current_tile_part_number = 0;
p_j2k->m_tcd->cur_totnum_tp = p_j2k->m_cp.tcps[p_tile_index].m_nb_tile_parts;
p_j2k->m_specific_param.m_encoder.m_current_poc_tile_part_number = 0;
/* initialisation before tile encoding */
if
(! tcd_init_encode_tile(p_j2k->m_tcd, p_j2k->m_current_tile_number))
{
return false;
}
return true;
}
/**
* Writes a tile.
* @param p_j2k the jpeg2000 codec.
* @param p_stream the stream to write data to.
* @param p_manager the user event manager.
*/
bool j2k_write_tile (
opj_j2k_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
)
{
if
(! j2k_pre_write_tile(p_j2k,p_tile_index,p_stream,p_manager))
{
return false;
}
return j2k_post_write_tile(p_j2k,p_data,p_data_size,p_stream,p_manager);
}
/**
* Writes a tile.
* @param p_j2k the jpeg2000 codec.
* @param p_stream the stream to write data to.
* @param p_manager the user event manager.
*/
bool j2k_post_write_tile (
opj_j2k_t * p_j2k,
OPJ_BYTE * p_data,
OPJ_UINT32 p_data_size,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
opj_tcd_t * l_tcd = 00;
opj_cp_t * l_cp = 00;
opj_tcp_t * l_tcp = 00;
OPJ_UINT32 l_nb_bytes_written;
OPJ_BYTE * l_current_data = 00;
OPJ_UINT32 l_tile_size = 0;
OPJ_UINT32 l_available_data;
assert(p_j2k->m_specific_param.m_encoder.m_encoded_tile_data);
l_tcd = p_j2k->m_tcd;
l_cp = &(p_j2k->m_cp);
l_tcp = l_cp->tcps + p_j2k->m_current_tile_number;
l_tile_size = p_j2k->m_specific_param.m_encoder.m_encoded_tile_size;
l_available_data = l_tile_size;
l_current_data = p_j2k->m_specific_param.m_encoder.m_encoded_tile_data;
if
(! tcd_copy_tile_data(l_tcd,p_data,p_data_size))
{
opj_event_msg(p_manager, EVT_ERROR, "Size mismtach between tile data and sent data." );
return false;
}
l_nb_bytes_written = 0;
if
(! j2k_write_first_tile_part(p_j2k,l_current_data,&l_nb_bytes_written,l_available_data,p_stream,p_manager))
{
return false;
}
l_current_data += l_nb_bytes_written;
l_available_data -= l_nb_bytes_written;
l_nb_bytes_written = 0;
if
(! j2k_write_all_tile_parts(p_j2k,l_current_data,&l_nb_bytes_written,l_available_data,p_stream,p_manager))
{
return false;
}
l_available_data -= l_nb_bytes_written;
l_nb_bytes_written = l_tile_size - l_available_data;
if
(opj_stream_write_data(p_stream,p_j2k->m_specific_param.m_encoder.m_encoded_tile_data,l_nb_bytes_written,p_manager) != l_nb_bytes_written)
{
return false;
}
++p_j2k->m_current_tile_number;
return true;
}
/**
* 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.
*/
bool j2k_read_tile_header (
opj_j2k_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,
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_t * l_tcp = 00;
OPJ_UINT32 l_nb_tiles;
// preconditions
assert(p_stream != 00);
assert(p_j2k != 00);
assert(p_manager != 00);
if
(p_j2k->m_specific_param.m_decoder.m_state == J2K_DEC_STATE_EOC)
{
l_current_marker = J2K_MS_EOC;
}
else if
(p_j2k->m_specific_param.m_decoder.m_state != J2K_DEC_STATE_TPHSOT)
{
return false;
}
while
(! p_j2k->m_specific_param.m_decoder.m_can_decode && l_current_marker != J2K_MS_EOC)
{
while
(l_current_marker != J2K_MS_SOD)
{
if
(opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_marker_size,2);
if
(p_j2k->m_specific_param.m_decoder.m_state & J2K_DEC_STATE_TPH)
{
p_j2k->m_specific_param.m_decoder.m_sot_length -= (l_marker_size + 2);
}
l_marker_size -= 2;
l_marker_handler = j2k_get_marker_handler(l_current_marker);
// Check if the marker is known
if
(! (p_j2k->m_specific_param.m_decoder.m_state & l_marker_handler->states) )
{
opj_event_msg(p_manager, EVT_ERROR, "Marker is not compliant with its position\n");
return false;
}
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 false;
}
p_j2k->m_specific_param.m_decoder.m_header_data_size = l_marker_size;
}
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(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
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(p_manager, EVT_ERROR, "Marker is not compliant with its position\n");
return false;
}
if
(p_j2k->m_specific_param.m_decoder.m_skip_data)
{
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(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
l_current_marker = J2K_MS_SOD;
}
else
{
if
(opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2);
}
}
if
(! p_j2k->m_specific_param.m_decoder.m_skip_data)
{
if
(! j2k_read_sod(p_j2k,p_stream,p_manager))
{
return false;
}
}
else
{
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_DEC_STATE_TPHSOT;
if
(opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2);
}
}
if
(l_current_marker == J2K_MS_EOC)
{
if
(p_j2k->m_specific_param.m_decoder.m_state != J2K_DEC_STATE_EOC)
{
p_j2k->m_current_tile_number = 0;
p_j2k->m_specific_param.m_decoder.m_state = J2K_DEC_STATE_EOC;
}
}
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 = false;
return true;
}
}
if
(! tcd_init_decode_tile(p_j2k->m_tcd, p_j2k->m_current_tile_number))
{
opj_event_msg(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n");
return false;
}
*p_tile_index = p_j2k->m_current_tile_number;
*p_go_on = 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 |= J2K_DEC_STATE_DATA;
return true;
}
bool j2k_decode_tile (
opj_j2k_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_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 & J2K_DEC_STATE_DATA) || p_tile_index != p_j2k->m_current_tile_number)
{
return false;
}
l_tcp = &(p_j2k->m_cp.tcps[p_tile_index]);
if
(! l_tcp->m_data)
{
j2k_tcp_destroy(&(p_j2k->m_cp.tcps[p_tile_index]));
return false;
}
if
(! tcd_decode_tile(p_j2k->m_tcd, l_tcp->m_data, l_tcp->m_data_size, p_tile_index, p_j2k->cstr_info))
{
j2k_tcp_destroy(l_tcp);
p_j2k->m_specific_param.m_decoder.m_state |= J2K_DEC_STATE_ERR;
return false;
}
if
(! tcd_update_tile_data(p_j2k->m_tcd,p_data,p_data_size))
{
return false;
}
j2k_tcp_destroy(l_tcp);
p_j2k->m_tcd->tcp = 0;
p_j2k->m_specific_param.m_decoder.m_can_decode = 0;
p_j2k->m_specific_param.m_decoder.m_state &= (~J2K_DEC_STATE_DATA);
if
(p_j2k->m_specific_param.m_decoder.m_state != J2K_DEC_STATE_EOC)
{
if
(opj_stream_read_data(p_stream,l_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short\n");
return 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 = J2K_DEC_STATE_EOC;
}
else if
(l_current_marker != J2K_MS_SOT)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short, expected SOT\n");
return false;
}
}
return true;
}
/**
* Ends the compression procedures and possibiliy add data to be read after the
* codestream.
*/
bool j2k_end_compress(opj_j2k_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager)
{
/* customization of the encoding */
j2k_setup_end_compress(p_j2k);
if
(! j2k_exec (p_j2k,p_j2k->m_procedure_list,p_stream,p_manager))
{
return false;
}
return 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.
*/
bool j2k_read_header(
opj_j2k_t *p_j2k,
struct opj_image ** p_image,
OPJ_INT32 * p_tile_x0,
OPJ_INT32 * p_tile_y0,
OPJ_UINT32 * p_tile_width,
OPJ_UINT32 * p_tile_height,
OPJ_UINT32 * p_nb_tiles_x,
OPJ_UINT32 * p_nb_tiles_y,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager
)
{
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
*p_image = 00;
/* create an empty image */
p_j2k->m_image = opj_image_create0();
if
(! p_j2k->m_image)
{
return 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_image);
p_j2k->m_image = 00;
return 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_image);
p_j2k->m_image = 00;
return false;
}
*p_image = p_j2k->m_image;
* p_tile_x0 = p_j2k->m_cp.tx0;
* p_tile_y0 = p_j2k->m_cp.ty0;
* p_tile_width = p_j2k->m_cp.tdx;
* p_tile_height = p_j2k->m_cp.tdy;
* p_nb_tiles_x = p_j2k->m_cp.tw;
* p_nb_tiles_y = p_j2k->m_cp.th;
return true;
}
/**
* The read header procedure.
*/
bool j2k_read_header_procedure(
opj_j2k_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);
p_j2k->m_specific_param.m_decoder.m_state = J2K_DEC_STATE_MHSOC;
if
(! j2k_read_soc(p_j2k,p_stream,p_manager))
{
opj_event_msg(p_manager, EVT_ERROR, "Expected a SOC marker \n");
return false;
}
if
(opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2);
while
(l_current_marker != J2K_MS_SOT)
{
if
(opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_marker_size,2);
l_marker_size -= 2;
/*if
(l_current_marker < 0xff00)
{
opj_event_msg(p_manager, EVT_ERROR, "%.8x: expected a marker instead of %x\n", opj_stream_tell(p_stream) - 2, l_current_marker);
return 0;
}
*/
l_marker_handler = j2k_get_marker_handler(l_current_marker);
// Check if the marker is known
if
(! (p_j2k->m_specific_param.m_decoder.m_state & l_marker_handler->states) )
{
opj_event_msg(p_manager, EVT_ERROR, "Marker is not compliant with its position\n");
return false;
}
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 false;
}
p_j2k->m_specific_param.m_decoder.m_header_data_size = l_marker_size;
}
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(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
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(p_manager, EVT_ERROR, "Marker is not compliant with its position\n");
return false;
}
if
(opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2)
{
opj_event_msg(p_manager, EVT_ERROR, "Stream too short\n");
return false;
}
opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2);
}
p_j2k->m_specific_param.m_decoder.m_state = J2K_DEC_STATE_TPHSOT;
return true;
}
/**
* Reads the tiles.
*/
bool j2k_decode_tiles (
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager)
{
bool l_go_on = 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 false;
}
l_max_data_size = 1000;
while
(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))
{
return 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)
{
return 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 false;
}
if
(! j2k_update_image_data(p_j2k->m_tcd,l_current_data))
{
opj_free(l_current_data);
return false;
}
}
opj_free(l_current_data);
return true;
}
/**
* Decodes the tiles of the stream.
*/
opj_image_t * j2k_decode(
opj_j2k_t * p_j2k,
opj_stream_private_t * p_stream,
opj_event_mgr_t * p_manager)
{
/* customization of the encoding */
j2k_setup_decoding(p_j2k);
/* write header */
if
(! j2k_exec (p_j2k,p_j2k->m_procedure_list,p_stream,p_manager))
{
opj_image_destroy(p_j2k->m_image);
p_j2k->m_image = 00;
}
return p_j2k->m_image;
}
/**
* Encodes all the tiles in a row.
*/
bool j2k_encode(
opj_j2k_t * p_j2k,
opj_stream_private_t *p_stream,
opj_event_mgr_t * p_manager
)
{
OPJ_UINT32 i;
OPJ_UINT32 l_nb_tiles;
OPJ_UINT32 l_max_tile_size, l_current_tile_size;
OPJ_BYTE * l_current_data;
// preconditions
assert(p_j2k != 00);
assert(p_stream != 00);
assert(p_manager != 00);
l_current_data = (OPJ_BYTE*)opj_malloc(1000);
if
(! l_current_data)
{
return false;
}
l_max_tile_size = 1000;
l_nb_tiles = p_j2k->m_cp.th * p_j2k->m_cp.tw;
for
(i=0;i<l_nb_tiles;++i)
{
if
(! j2k_pre_write_tile(p_j2k,i,p_stream,p_manager))
{
opj_free(l_current_data);
return false;
}
l_current_tile_size = tcd_get_encoded_tile_size(p_j2k->m_tcd);
if
(l_current_tile_size > l_max_tile_size)
{
l_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,l_current_tile_size);
if
(! l_current_data)
{
return false;
}
l_max_tile_size = l_current_tile_size;
}
j2k_get_tile_data(p_j2k->m_tcd,l_current_data);
if
(! j2k_post_write_tile (p_j2k,l_current_data,l_current_tile_size,p_stream,p_manager))
{
return false;
}
}
opj_free(l_current_data);
return true;
}
/**
* Ends the decompression procedures and possibiliy add data to be read after the
* codestream.
*/
bool j2k_end_decompress(
opj_j2k_t *p_j2k,
struct opj_stream_private *p_stream,
struct opj_event_mgr * p_manager)
{
return true;
}
void j2k_get_tile_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data)
{
OPJ_UINT32 i,j,k = 0;
OPJ_UINT32 l_width,l_height,l_stride, l_offset_x,l_offset_y, l_image_width;
opj_image_comp_t * l_img_comp = 00;
opj_tcd_tilecomp_t * l_tilec = 00;
opj_image_t * l_image = 00;
OPJ_UINT32 l_size_comp, l_remaining;
OPJ_INT32 * l_src_ptr;
l_tilec = p_tcd->tcd_image->tiles->comps;
l_image = p_tcd->image;
l_img_comp = l_image->comps;
for
(i=0;i<p_tcd->image->numcomps;++i)
{
l_size_comp = l_img_comp->prec >> 3; /*(/ 8)*/
l_remaining = l_img_comp->prec & 7; /* (%8) */
if
(l_remaining)
{
++l_size_comp;
}
if
(l_size_comp == 3)
{
l_size_comp = 4;
}
l_width = (l_tilec->x1 - l_tilec->x0);
l_height = (l_tilec->y1 - l_tilec->y0);
l_offset_x = int_ceildiv(l_image->x0, l_img_comp->dx);
l_offset_y = int_ceildiv(l_image->y0, l_img_comp->dy);
l_image_width = int_ceildiv(l_image->x1 - l_image->x0, l_img_comp->dx);
l_stride = l_image_width - l_width;
l_src_ptr = l_img_comp->data + (l_tilec->x0 - l_offset_x) + (l_tilec->y0 - l_offset_y) * l_image_width;
switch
(l_size_comp)
{
case 1:
{
OPJ_CHAR * l_dest_ptr = (OPJ_CHAR*) p_data;
if
(l_img_comp->sgnd)
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr) = (OPJ_CHAR) (*l_src_ptr);
++l_dest_ptr;
++l_src_ptr;
}
l_src_ptr += l_stride;
}
}
else
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr) = (*l_src_ptr)&0xff;
++l_dest_ptr;
++l_src_ptr;
}
l_src_ptr += l_stride;
}
}
p_data = (OPJ_BYTE*) l_dest_ptr;
}
break;
case 2:
{
OPJ_INT16 * l_dest_ptr = (OPJ_INT16 *) p_data;
if
(l_img_comp->sgnd)
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = (OPJ_INT16) (*(l_src_ptr++));
}
l_src_ptr += l_stride;
}
}
else
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = (*(l_src_ptr++))&0xffff;
}
l_src_ptr += l_stride;
}
}
p_data = (OPJ_BYTE*) l_dest_ptr;
}
break;
case 4:
{
OPJ_INT32 * l_dest_ptr = (OPJ_INT32 *) p_data;
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = *(l_src_ptr++);
}
l_src_ptr += l_stride;
}
p_data = (OPJ_BYTE*) l_dest_ptr;
}
break;
}
++l_img_comp;
++l_tilec;
}
}
bool j2k_update_image_data (opj_tcd_t * p_tcd, OPJ_BYTE * p_data)
{
OPJ_UINT32 i,j,k = 0;
OPJ_UINT32 l_width,l_height,l_offset_x,l_offset_y;
opj_image_comp_t * l_img_comp = 00;
opj_tcd_tilecomp_t * l_tilec = 00;
opj_image_t * l_image = 00;
OPJ_UINT32 l_size_comp, l_remaining;
OPJ_UINT32 l_dest_stride;
OPJ_INT32 * l_dest_ptr;
opj_tcd_resolution_t* l_res= 00;
l_tilec = p_tcd->tcd_image->tiles->comps;
l_image = p_tcd->image;
l_img_comp = l_image->comps;
for
(i=0;i<p_tcd->image->numcomps;++i)
{
if
(!l_img_comp->data)
{
l_img_comp->data = (OPJ_INT32*) opj_malloc(l_img_comp->w * l_img_comp->h * sizeof(OPJ_INT32));
if
(! l_img_comp->data)
{
return false;
}
memset(l_img_comp->data,0,l_img_comp->w * l_img_comp->h * sizeof(OPJ_INT32));
}
l_size_comp = l_img_comp->prec >> 3; /*(/ 8)*/
l_remaining = l_img_comp->prec & 7; /* (%8) */
l_res = l_tilec->resolutions + l_img_comp->resno_decoded;
if
(l_remaining)
{
++l_size_comp;
}
if
(l_size_comp == 3)
{
l_size_comp = 4;
}
l_width = (l_res->x1 - l_res->x0);
l_height = (l_res->y1 - l_res->y0);
l_dest_stride = (l_img_comp->w) - l_width;
l_offset_x = int_ceildivpow2(l_img_comp->x0, l_img_comp->factor);
l_offset_y = int_ceildivpow2(l_img_comp->y0, l_img_comp->factor);
l_dest_ptr = l_img_comp->data + (l_res->x0 - l_offset_x) + (l_res->y0 - l_offset_y) * l_img_comp->w;
switch
(l_size_comp)
{
case 1:
{
OPJ_CHAR * l_src_ptr = (OPJ_CHAR*) p_data;
if
(l_img_comp->sgnd)
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = (OPJ_INT32) (*(l_src_ptr++));
}
l_dest_ptr += l_dest_stride;
}
}
else
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = (OPJ_INT32) ((*(l_src_ptr++))&0xff);
}
l_dest_ptr += l_dest_stride;
}
}
p_data = (OPJ_BYTE*) l_src_ptr;
}
break;
case 2:
{
OPJ_INT16 * l_src_ptr = (OPJ_INT16 *) p_data;
if
(l_img_comp->sgnd)
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = *(l_src_ptr++);
}
l_dest_ptr += l_dest_stride;
}
}
else
{
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = (*(l_src_ptr++))&0xffff;
}
l_dest_ptr += l_dest_stride;
}
}
p_data = (OPJ_BYTE*) l_src_ptr;
}
break;
case 4:
{
OPJ_INT32 * l_src_ptr = (OPJ_INT32 *) p_data;
for
(j=0;j<l_height;++j)
{
for
(k=0;k<l_width;++k)
{
*(l_dest_ptr++) = (*(l_src_ptr++));
}
l_dest_ptr += l_dest_stride;
}
p_data = (OPJ_BYTE*) l_src_ptr;
}
break;
}
++l_img_comp;
++l_tilec;
}
return 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.
*/
bool j2k_set_decode_area(
opj_j2k_t *p_j2k,
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_t * l_cp = &(p_j2k->m_cp);
if
(p_j2k->m_specific_param.m_decoder.m_state != J2K_DEC_STATE_TPHSOT)
{
return false;
}
p_j2k->m_specific_param.m_decoder.m_start_tile_x = (p_start_x - l_cp->tx0) / l_cp->tdx;
p_j2k->m_specific_param.m_decoder.m_start_tile_y = (p_start_y - l_cp->ty0) / l_cp->tdy;
p_j2k->m_specific_param.m_decoder.m_end_tile_x = int_ceildiv((p_end_x - l_cp->tx0), l_cp->tdx);
p_j2k->m_specific_param.m_decoder.m_end_tile_y = int_ceildiv((p_end_y - l_cp->ty0), l_cp->tdy);
p_j2k->m_specific_param.m_decoder.m_discard_tiles = 1;
return true;
}
void j2k_dump_image(FILE *fd, opj_image_t * img) {
int compno;
fprintf(fd, "image {\n");
fprintf(fd, " x0=%d, y0=%d, x1=%d, y1=%d\n", img->x0, img->y0, img->x1, img->y1);
fprintf(fd, " numcomps=%d\n", img->numcomps);
for (compno = 0; compno < img->numcomps; compno++) {
opj_image_comp_t *comp = &img->comps[compno];
fprintf(fd, " comp %d {\n", compno);
fprintf(fd, " dx=%d, dy=%d\n", comp->dx, comp->dy);
fprintf(fd, " prec=%d\n", comp->prec);
//fprintf(fd, " bpp=%d\n", comp->bpp);
fprintf(fd, " sgnd=%d\n", comp->sgnd);
fprintf(fd, " }\n");
}
fprintf(fd, "}\n");
}
/*
void j2k_dump_cp(FILE *fd, opj_image_t * img, opj_cp_t * cp) {
int tileno, compno, layno, bandno, resno, numbands;
fprintf(fd, "coding parameters {\n");
fprintf(fd, " tx0=%d, ty0=%d\n", cp->tx0, cp->ty0);
fprintf(fd, " tdx=%d, tdy=%d\n", cp->tdx, cp->tdy);
fprintf(fd, " tw=%d, th=%d\n", cp->tw, cp->th);
for (tileno = 0; tileno < cp->tw * cp->th; tileno++) {
opj_tcp_t *tcp = &cp->tcps[tileno];
fprintf(fd, " tile %d {\n", tileno);
fprintf(fd, " csty=%x\n", tcp->csty);
fprintf(fd, " prg=%d\n", tcp->prg);
fprintf(fd, " numlayers=%d\n", tcp->numlayers);
fprintf(fd, " mct=%d\n", tcp->mct);
fprintf(fd, " rates=");
for (layno = 0; layno < tcp->numlayers; layno++) {
fprintf(fd, "%.1f ", tcp->rates[layno]);
}
fprintf(fd, "\n");
for (compno = 0; compno < img->numcomps; compno++) {
opj_tccp_t *tccp = &tcp->tccps[compno];
fprintf(fd, " comp %d {\n", compno);
fprintf(fd, " csty=%x\n", tccp->csty);
fprintf(fd, " numresolutions=%d\n", tccp->numresolutions);
fprintf(fd, " cblkw=%d\n", tccp->cblkw);
fprintf(fd, " cblkh=%d\n", tccp->cblkh);
fprintf(fd, " cblksty=%x\n", tccp->cblksty);
fprintf(fd, " qmfbid=%d\n", tccp->qmfbid);
fprintf(fd, " qntsty=%d\n", tccp->qntsty);
fprintf(fd, " numgbits=%d\n", tccp->numgbits);
fprintf(fd, " roishift=%d\n", tccp->roishift);
fprintf(fd, " stepsizes=");
numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2;
for (bandno = 0; bandno < numbands; bandno++) {
fprintf(fd, "(%d,%d) ", tccp->stepsizes[bandno].mant,
tccp->stepsizes[bandno].expn);
}
fprintf(fd, "\n");
if (tccp->csty & J2K_CCP_CSTY_PRT) {
fprintf(fd, " prcw=");
for (resno = 0; resno < tccp->numresolutions; resno++) {
fprintf(fd, "%d ", tccp->prcw[resno]);
}
fprintf(fd, "\n");
fprintf(fd, " prch=");
for (resno = 0; resno < tccp->numresolutions; resno++) {
fprintf(fd, "%d ", tccp->prch[resno]);
}
fprintf(fd, "\n");
}
fprintf(fd, " }\n");
}
fprintf(fd, " }\n");
}
fprintf(fd, "}\n");
}
*/
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