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openjpeg/libopenjpeg/openjpeg.c

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/*
* Copyright (c) 2005, Hervé Drolon, FreeImage Team
* 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.
*/
#ifdef WIN32
#include <windows.h>
#endif /* WIN32 */
#include "openjpeg.h"
#include "opj_malloc.h"
#include "j2k.h"
#include "jp2.h"
#include "event.h"
#include "cio.h"
typedef struct opj_decompression
{
bool (* opj_read_header) (
void *p_codec,
opj_image_t **,
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 *cio,
struct opj_event_mgr * p_manager);
opj_image_t* (* opj_decode) (void * p_codec, struct opj_stream_private *p_cio, struct opj_event_mgr * p_manager);
bool (*opj_read_tile_header)(
void * p_codec,
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_should_go_on,
struct opj_stream_private *p_cio,
struct opj_event_mgr * p_manager);
bool (*opj_decode_tile_data)(void * p_codec,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,struct opj_stream_private *p_cio,struct opj_event_mgr * p_manager);
bool (* opj_end_decompress) (void *p_codec,struct opj_stream_private *cio,struct opj_event_mgr * p_manager);
void (* opj_destroy) (void * p_codec);
void (*opj_setup_decoder) (void * p_codec,opj_dparameters_t * p_param);
bool (*opj_set_decode_area) (void * p_codec,OPJ_INT32 p_start_x,OPJ_INT32 p_end_x,OPJ_INT32 p_start_y,OPJ_INT32 p_end_y,struct opj_event_mgr * p_manager);
}opj_decompression_t;
typedef struct opj_compression
{
bool (* opj_start_compress) (void *p_codec,struct opj_stream_private *cio,struct opj_image * p_image, struct opj_event_mgr * p_manager);
bool (* opj_encode) (void * p_codec, struct opj_stream_private *p_cio, struct opj_event_mgr * p_manager);
bool (* opj_write_tile) (void * p_codec,OPJ_UINT32 p_tile_index,OPJ_BYTE * p_data,OPJ_UINT32 p_data_size,struct opj_stream_private * p_cio,struct opj_event_mgr * p_manager);
bool (* opj_end_compress) (void * p_codec, struct opj_stream_private *p_cio, struct opj_event_mgr * p_manager);
void (* opj_destroy) (void * p_codec);
void (*opj_setup_encoder) (void * p_codec,opj_cparameters_t * p_param,struct opj_image * p_image, struct opj_event_mgr * p_manager);
}opj_compression_t;
typedef struct opj_codec_private
{
union
{ /* code-blocks informations */
opj_decompression_t m_decompression;
opj_compression_t m_compression;
} m_codec_data;
void * m_codec;
opj_event_mgr_t m_event_mgr;
unsigned is_decompressor : 1;
}
opj_codec_private_t;
/**
* Default callback function.
* Do nothing.
*/
void opj_default_callback (const char *msg, void *client_data)
{
}
void set_default_event_handler(opj_event_mgr_t * p_manager)
{
p_manager->m_error_data = 00;
p_manager->m_warning_data = 00;
p_manager->m_info_data = 00;
p_manager->error_handler = opj_default_callback;
p_manager->info_handler = opj_default_callback;
p_manager->warning_handler = opj_default_callback;
}
OPJ_UINT32 opj_read_from_file (void * p_buffer, OPJ_UINT32 p_nb_bytes, FILE * p_file)
{
OPJ_UINT32 l_nb_read = fread(p_buffer,1,p_nb_bytes,p_file);
return l_nb_read ? l_nb_read : -1;
}
OPJ_UINT32 opj_write_from_file (void * p_buffer, OPJ_UINT32 p_nb_bytes, FILE * p_file)
{
return fwrite(p_buffer,1,p_nb_bytes,p_file);
}
OPJ_SIZE_T opj_skip_from_file (OPJ_SIZE_T p_nb_bytes, FILE * p_user_data)
{
if
(fseek(p_user_data,p_nb_bytes,SEEK_CUR))
{
return -1;
}
return p_nb_bytes;
}
bool opj_seek_from_file (OPJ_SIZE_T p_nb_bytes, FILE * p_user_data)
{
if
(fseek(p_user_data,p_nb_bytes,SEEK_SET))
{
return false;
}
return true;
}
/* ---------------------------------------------------------------------- */
#ifdef WIN32
#ifndef OPJ_STATIC
BOOL APIENTRY
DllMain(HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) {
switch (ul_reason_for_call) {
case DLL_PROCESS_ATTACH :
break;
case DLL_PROCESS_DETACH :
break;
case DLL_THREAD_ATTACH :
case DLL_THREAD_DETACH :
break;
}
return TRUE;
}
#endif /* OPJ_STATIC */
#endif /* WIN32 */
/* ---------------------------------------------------------------------- */
const char* OPJ_CALLCONV opj_version(void) {
return OPENJPEG_VERSION;
}
opj_codec_t* OPJ_CALLCONV opj_create_decompress(OPJ_CODEC_FORMAT p_format)
{
opj_codec_private_t *l_info = 00;
l_info = (opj_codec_private_t*) opj_calloc(1, sizeof(opj_codec_private_t));
if
(!l_info)
{
return 00;
}
memset(l_info, 0, sizeof(opj_codec_private_t));
l_info->is_decompressor = 1;
switch
(p_format)
{
case CODEC_J2K:
l_info->m_codec_data.m_decompression.opj_decode = (opj_image_t* (*) (void *, struct opj_stream_private *, struct opj_event_mgr * ))j2k_decode;
l_info->m_codec_data.m_decompression.opj_end_decompress = (bool (*) (void *,struct opj_stream_private *,struct opj_event_mgr *))j2k_end_decompress;
l_info->m_codec_data.m_decompression.opj_read_header = (bool (*) (
void *,
opj_image_t **,
OPJ_INT32 * ,
OPJ_INT32 * ,
OPJ_UINT32 * ,
OPJ_UINT32 * ,
OPJ_UINT32 * ,
OPJ_UINT32 * ,
struct opj_stream_private *,
struct opj_event_mgr * )) j2k_read_header;
l_info->m_codec_data.m_decompression.opj_destroy = (void (*) (void *))j2k_destroy;
l_info->m_codec_data.m_decompression.opj_setup_decoder = (void (*) (void * ,opj_dparameters_t * )) j2k_setup_decoder;
l_info->m_codec_data.m_decompression.opj_read_tile_header = (bool (*) (
void *,
OPJ_UINT32*,
OPJ_UINT32*,
OPJ_INT32 * ,
OPJ_INT32 * ,
OPJ_INT32 * ,
OPJ_INT32 * ,
OPJ_UINT32 * ,
bool *,
struct opj_stream_private *,
struct opj_event_mgr * )) j2k_read_tile_header;
l_info->m_codec_data.m_decompression.opj_decode_tile_data = (bool (*) (void *,OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,struct opj_stream_private *, struct opj_event_mgr * )) j2k_decode_tile;
l_info->m_codec_data.m_decompression.opj_set_decode_area = (bool (*) (void *,OPJ_INT32,OPJ_INT32,OPJ_INT32,OPJ_INT32, struct opj_event_mgr * )) j2k_set_decode_area;
l_info->m_codec = j2k_create_decompress();
if
(! l_info->m_codec)
{
opj_free(l_info);
return 00;
}
break;
case CODEC_JP2:
/* get a JP2 decoder handle */
l_info->m_codec_data.m_decompression.opj_decode = (opj_image_t* (*) (void *, struct opj_stream_private *, struct opj_event_mgr * ))opj_jp2_decode;
l_info->m_codec_data.m_decompression.opj_end_decompress = (bool (*) (void *,struct opj_stream_private *,struct opj_event_mgr *)) jp2_end_decompress;
l_info->m_codec_data.m_decompression.opj_read_header = (bool (*) (
void *,
opj_image_t **,
OPJ_INT32 * ,
OPJ_INT32 * ,
OPJ_UINT32 * ,
OPJ_UINT32 * ,
OPJ_UINT32 * ,
OPJ_UINT32 * ,
struct opj_stream_private *,
struct opj_event_mgr * )) jp2_read_header;
l_info->m_codec_data.m_decompression.opj_read_tile_header = (
bool (*) (
void *,
OPJ_UINT32*,
OPJ_UINT32*,
OPJ_INT32*,
OPJ_INT32*,
OPJ_INT32 * ,
OPJ_INT32 * ,
OPJ_UINT32 * ,
bool *,
struct opj_stream_private *,
struct opj_event_mgr * )) jp2_read_tile_header;
l_info->m_codec_data.m_decompression.opj_decode_tile_data = (bool (*) (void *,OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,struct opj_stream_private *, struct opj_event_mgr * )) opj_jp2_decode_tile;
l_info->m_codec_data.m_decompression.opj_destroy = (void (*) (void *))jp2_destroy;
l_info->m_codec_data.m_decompression.opj_setup_decoder = (void (*) (void * ,opj_dparameters_t * )) jp2_setup_decoder;
l_info->m_codec_data.m_decompression.opj_set_decode_area = (bool (*) (void *,OPJ_INT32,OPJ_INT32,OPJ_INT32,OPJ_INT32, struct opj_event_mgr * )) jp2_set_decode_area;
l_info->m_codec = jp2_create(true);
if
(! l_info->m_codec)
{
opj_free(l_info);
return 00;
}
break;
case CODEC_UNKNOWN:
case CODEC_JPT:
default:
opj_free(l_info);
return 00;
}
set_default_event_handler(&(l_info->m_event_mgr));
return (opj_codec_t*) l_info;
}
void OPJ_CALLCONV opj_destroy_codec(opj_codec_t *p_info)
{
if
(p_info)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_info;
if
(l_info->is_decompressor)
{
l_info->m_codec_data.m_decompression.opj_destroy(l_info->m_codec);
}
else
{
l_info->m_codec_data.m_compression.opj_destroy(l_info->m_codec);
}
l_info->m_codec = 00;
opj_free(l_info);
}
}
void OPJ_CALLCONV opj_set_default_decoder_parameters(opj_dparameters_t *parameters) {
if(parameters) {
memset(parameters, 0, sizeof(opj_dparameters_t));
/* default decoding parameters */
parameters->cp_layer = 0;
parameters->cp_reduce = 0;
parameters->decod_format = -1;
parameters->cod_format = -1;
/* UniPG>> */
#ifdef USE_JPWL
parameters->jpwl_correct = false;
parameters->jpwl_exp_comps = JPWL_EXPECTED_COMPONENTS;
parameters->jpwl_max_tiles = JPWL_MAXIMUM_TILES;
#endif /* USE_JPWL */
/* <<UniPG */
}
}
bool OPJ_CALLCONV opj_setup_decoder(opj_codec_t *p_info, opj_dparameters_t *parameters) {
if
(p_info && parameters)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_info;
if
(! l_info->is_decompressor)
{
return false;
}
l_info->m_codec_data.m_decompression.opj_setup_decoder(l_info->m_codec,parameters);
return true;
}
return false;
}
opj_image_t* OPJ_CALLCONV opj_decode(opj_codec_t *p_info, opj_stream_t *cio)
{
if
(p_info && cio)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_info;
opj_stream_private_t * l_cio = (opj_stream_private_t *) cio;
if
(! l_info->is_decompressor)
{
return 00;
}
return l_info->m_codec_data.m_decompression.opj_decode(l_info->m_codec,l_cio,&(l_info->m_event_mgr));
}
return 00;
}
/**
* Writes a tile with the given data.
*
* @param p_compressor the jpeg2000 codec.
* @param p_tile_index the index of the tile to write. At the moment, the tiles must be written from 0 to n-1 in sequence.
* @param p_data pointer to the data to write. Data is arranged in sequence, data_comp0, then data_comp1, then ... NO INTERLEAVING should be set.
* @param p_data_size this value os used to make sure the data being written is correct. The size must be equal to the sum for each component of tile_width * tile_height * component_size. component_size can be 1,2 or 4 bytes,
* depending on the precision of the given component.
* @param p_stream the stream to write data to.
*/
bool OPJ_CALLCONV opj_write_tile (
opj_codec_t *p_codec,
OPJ_UINT32 p_tile_index,
OPJ_BYTE * p_data,
OPJ_UINT32 p_data_size,
opj_stream_t *p_stream
)
{
if
(p_codec && p_stream && p_data)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
opj_stream_private_t * l_cio = (opj_stream_private_t *) p_stream;
if
(l_info->is_decompressor)
{
return false;
}
return l_info->m_codec_data.m_compression.opj_write_tile(l_info->m_codec,p_tile_index,p_data,p_data_size,l_cio,&(l_info->m_event_mgr));
}
return false;
}
/**
* Reads a tile header. This function is compulsory and allows one to know the size of the tile thta will be decoded.
* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
*
* @param p_codec the jpeg2000 codec.
* @param p_tile_index pointer to a value that will hold the index of the tile being decoded, in case of success.
* @param p_data_size pointer to a value that will hold the maximum size of the decoded data, in case of success. In case
* of truncated codestreams, the actual number of bytes decoded may be lower. The computation of the size is the same
* as depicted in opj_write_tile.
* @param p_tile_x0 pointer to a value that will hold the x0 pos of the tile (in the image).
* @param p_tile_y0 pointer to a value that will hold the y0 pos of the tile (in the image).
* @param p_tile_x1 pointer to a value that will hold the x1 pos of the tile (in the image).
* @param p_tile_y1 pointer to a value that will hold the y1 pos of the tile (in the image).
* @param p_nb_comps pointer to a value that will hold the number of components in the tile.
* @param p_should_go_on pointer to a boolean that will hold the fact that the decoding should go on. In case the
* codestream is over at the time of the call, the value will be set to false. The user should then stop
* the decoding.
* @param p_stream the stream to decode.
* @return true if the tile header could be decoded. In case the decoding should end, the returned value is still true.
* returning false may be the result of a shortage of memory or an internal error.
*/
bool OPJ_CALLCONV opj_read_tile_header(
opj_codec_t *p_codec,
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_should_go_on,
opj_stream_t * p_stream)
{
if
(p_codec && p_stream && p_data_size && p_tile_index)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
opj_stream_private_t * l_cio = (opj_stream_private_t *) p_stream;
if
(! l_info->is_decompressor)
{
return false;
}
return l_info->m_codec_data.m_decompression.opj_read_tile_header(
l_info->m_codec,
p_tile_index,
p_data_size,
p_tile_x0,
p_tile_y0,
p_tile_x1,
p_tile_y1,
p_nb_comps,
p_should_go_on,
l_cio,&(l_info->m_event_mgr));
}
return false;
}
/**
* Reads a tile data. This function is compulsory and allows one to decode tile data. opj_read_tile_header should be called before.
* The user may need to refer to the image got by opj_read_header to understand the size being taken by the tile.
*
* @param p_codec the jpeg2000 codec.
* @param p_tile_index the index of the tile being decoded, this should be the value set by opj_read_tile_header.
* @param p_data pointer to a memory block that will hold the decoded data.
* @param p_data_size size of p_data. p_data_size should be bigger or equal to the value set by opj_read_tile_header.
* @param p_stream the stream to decode.
*
* @return true if the data could be decoded.
*/
bool OPJ_CALLCONV opj_decode_tile_data(
opj_codec_t *p_codec,
OPJ_UINT32 p_tile_index,
OPJ_BYTE * p_data,
OPJ_UINT32 p_data_size,
opj_stream_t *p_stream
)
{
if
(p_codec && p_data && p_stream)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
opj_stream_private_t * l_cio = (opj_stream_private_t *) p_stream;
if
(! l_info->is_decompressor)
{
return false;
}
return l_info->m_codec_data.m_decompression.opj_decode_tile_data(l_info->m_codec,p_tile_index,p_data,p_data_size,l_cio,&(l_info->m_event_mgr));
}
return false;
}
bool OPJ_CALLCONV opj_read_header (
opj_codec_t *p_codec,
opj_image_t ** 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,
opj_stream_t *p_cio)
{
if
(p_codec && p_cio)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
opj_stream_private_t * l_cio = (opj_stream_private_t *) p_cio;
if
(! l_info->is_decompressor)
{
return false;
}
return l_info->m_codec_data.m_decompression.opj_read_header(
l_info->m_codec,
p_image,
p_tile_x0,
p_tile_y0,
p_tile_width,
p_tile_height,
p_nb_tiles_x,
p_nb_tiles_y,
l_cio,
&(l_info->m_event_mgr));
}
return false;
}
/**
* 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_codec 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).
*
* @return true if the area could be set.
*/
bool OPJ_CALLCONV opj_set_decode_area(
opj_codec_t *p_codec,
OPJ_INT32 p_start_x,
OPJ_INT32 p_start_y,
OPJ_INT32 p_end_x,
OPJ_INT32 p_end_y
)
{
if
(p_codec)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
if
(! l_info->is_decompressor)
{
return false;
}
return l_info->m_codec_data.m_decompression.opj_set_decode_area(
l_info->m_codec,
p_start_x,
p_start_y,
p_end_x,
p_end_y,
&(l_info->m_event_mgr));
}
return false;
}
bool OPJ_CALLCONV opj_end_decompress (opj_codec_t *p_codec,opj_stream_t *p_cio)
{
if
(p_codec && p_cio)
{
opj_codec_private_t * l_info = (opj_codec_private_t *) p_codec;
opj_stream_private_t * l_cio = (opj_stream_private_t *) p_cio;
if
(! l_info->is_decompressor)
{
return false;
}
return l_info->m_codec_data.m_decompression.opj_end_decompress(l_info->m_codec,l_cio,&(l_info->m_event_mgr));
}
return false;
}
opj_codec_t* OPJ_CALLCONV opj_create_compress(OPJ_CODEC_FORMAT p_format)
{
opj_codec_private_t *l_info = 00;
l_info = (opj_codec_private_t*)opj_calloc(1, sizeof(opj_codec_private_t));
if
(!l_info)
{
return 00;
}
memset(l_info, 0, sizeof(opj_codec_private_t));
l_info->is_decompressor = 0;
switch
(p_format)
{
case CODEC_J2K:
l_info->m_codec_data.m_compression.opj_encode = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr * )) j2k_encode;
l_info->m_codec_data.m_compression.opj_end_compress = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr *)) j2k_end_compress;
l_info->m_codec_data.m_compression.opj_start_compress = (bool (*) (void *,struct opj_stream_private *,struct opj_image * , struct opj_event_mgr *)) j2k_start_compress;
l_info->m_codec_data.m_compression.opj_write_tile = (bool (*) (void *,OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,struct opj_stream_private *, struct opj_event_mgr *)) j2k_write_tile;
l_info->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) j2k_destroy;
l_info->m_codec_data.m_compression.opj_setup_encoder = (void (*) (void *,opj_cparameters_t *,struct opj_image *, struct opj_event_mgr * )) j2k_setup_encoder;
l_info->m_codec = j2k_create_compress();
if
(! l_info->m_codec)
{
opj_free(l_info);
return 00;
}
break;
case CODEC_JP2:
/* get a JP2 decoder handle */
l_info->m_codec_data.m_compression.opj_encode = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr * )) opj_jp2_encode;
l_info->m_codec_data.m_compression.opj_end_compress = (bool (*) (void *, struct opj_stream_private *, struct opj_event_mgr *)) jp2_end_compress;
l_info->m_codec_data.m_compression.opj_start_compress = (bool (*) (void *,struct opj_stream_private *,struct opj_image * , struct opj_event_mgr *)) jp2_start_compress;
l_info->m_codec_data.m_compression.opj_write_tile = (bool (*) (void *,OPJ_UINT32,OPJ_BYTE*,OPJ_UINT32,struct opj_stream_private *, struct opj_event_mgr *)) jp2_write_tile;
l_info->m_codec_data.m_compression.opj_destroy = (void (*) (void *)) jp2_destroy;
l_info->m_codec_data.m_compression.opj_setup_encoder = (void (*) (void *,opj_cparameters_t *,struct opj_image *, struct opj_event_mgr * )) jp2_setup_encoder;
l_info->m_codec = jp2_create(false);
if
(! l_info->m_codec)
{
opj_free(l_info);
return 00;
}
break;
case CODEC_UNKNOWN:
case CODEC_JPT:
default:
opj_free(l_info);
return 00;
}
set_default_event_handler(&(l_info->m_event_mgr));
return (opj_codec_t*) l_info;
}
void OPJ_CALLCONV opj_set_default_encoder_parameters(opj_cparameters_t *parameters) {
if(parameters) {
memset(parameters, 0, sizeof(opj_cparameters_t));
/* default coding parameters */
parameters->cp_cinema = OFF;
parameters->max_comp_size = 0;
parameters->numresolution = 6;
parameters->cp_rsiz = STD_RSIZ;
parameters->cblockw_init = 64;
parameters->cblockh_init = 64;
parameters->prog_order = LRCP;
parameters->roi_compno = -1; /* no ROI */
parameters->subsampling_dx = 1;
parameters->subsampling_dy = 1;
parameters->tp_on = 0;
parameters->decod_format = -1;
parameters->cod_format = -1;
parameters->tcp_rates[0] = 0;
parameters->tcp_numlayers = 0;
parameters->cp_disto_alloc = 0;
parameters->cp_fixed_alloc = 0;
parameters->cp_fixed_quality = 0;
/* UniPG>> */
#ifdef USE_JPWL
parameters->jpwl_epc_on = false;
parameters->jpwl_hprot_MH = -1; /* -1 means unassigned */
{
int i;
for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
parameters->jpwl_hprot_TPH_tileno[i] = -1; /* unassigned */
parameters->jpwl_hprot_TPH[i] = 0; /* absent */
}
};
{
int i;
for (i = 0; i < JPWL_MAX_NO_PACKSPECS; i++) {
parameters->jpwl_pprot_tileno[i] = -1; /* unassigned */
parameters->jpwl_pprot_packno[i] = -1; /* unassigned */
parameters->jpwl_pprot[i] = 0; /* absent */
}
};
parameters->jpwl_sens_size = 0; /* 0 means no ESD */
parameters->jpwl_sens_addr = 0; /* 0 means auto */
parameters->jpwl_sens_range = 0; /* 0 means packet */
parameters->jpwl_sens_MH = -1; /* -1 means unassigned */
{
int i;
for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) {
parameters->jpwl_sens_TPH_tileno[i] = -1; /* unassigned */
parameters->jpwl_sens_TPH[i] = -1; /* absent */
}
};
#endif /* USE_JPWL */
/* <<UniPG */
}
}
/**
* Helper function.
* Sets the stream to be a file stream. The FILE must have been open previously.
* @param p_stream the stream to modify
* @param p_file handler to an already open file.
*/
opj_stream_t* OPJ_CALLCONV opj_stream_create_default_file_stream (FILE * p_file,bool p_is_read_stream)
{
return opj_stream_create_file_stream(p_file,J2K_STREAM_CHUNK_SIZE,p_is_read_stream);
}
opj_stream_t* OPJ_CALLCONV opj_stream_create_file_stream (FILE * p_file,OPJ_UINT32 p_size,bool p_is_read_stream)
{
opj_stream_t* l_stream = 00;
if
(! p_file)
{
return 00;
}
l_stream = opj_stream_create(p_size,p_is_read_stream);
if
(! l_stream)
{
return 00;
}
opj_stream_set_user_data(l_stream,p_file);
opj_stream_set_read_function(l_stream,(opj_stream_read_fn) opj_read_from_file);
opj_stream_set_write_function(l_stream, (opj_stream_write_fn) opj_write_from_file);
opj_stream_set_skip_function(l_stream, (opj_stream_skip_fn) opj_skip_from_file);
opj_stream_set_seek_function(l_stream, (opj_stream_seek_fn) opj_seek_from_file);
return l_stream;
}
bool OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_info, opj_cparameters_t *parameters, opj_image_t *image)
{
if
(p_info && parameters && image)
{
opj_codec_private_t * l_codec = ((opj_codec_private_t *) p_info);
if
(! l_codec->is_decompressor)
{
l_codec->m_codec_data.m_compression.opj_setup_encoder(l_codec->m_codec,parameters,image,&(l_codec->m_event_mgr));
return true;
}
}
return false;
}
bool OPJ_CALLCONV opj_encode(opj_codec_t *p_info, opj_stream_t *cio)
{
if
(p_info && cio)
{
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_info;
opj_stream_private_t * l_cio = (opj_stream_private_t *) cio;
if
(! l_codec->is_decompressor)
{
l_codec->m_codec_data.m_compression.opj_encode(l_codec->m_codec,l_cio,&(l_codec->m_event_mgr));
return true;
}
}
return false;
}
bool OPJ_CALLCONV opj_start_compress (opj_codec_t *p_codec,opj_image_t * p_image,opj_stream_t *p_cio)
{
if
(p_codec && p_cio)
{
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
opj_stream_private_t * l_cio = (opj_stream_private_t *) p_cio;
if
(! l_codec->is_decompressor)
{
return l_codec->m_codec_data.m_compression.opj_start_compress(l_codec->m_codec,l_cio,p_image,&(l_codec->m_event_mgr));
}
}
return false;
}
bool OPJ_CALLCONV opj_end_compress (opj_codec_t *p_codec,opj_stream_t *p_cio)
{
if
(p_codec && p_cio)
{
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
opj_stream_private_t * l_cio = (opj_stream_private_t *) p_cio;
if
(! l_codec->is_decompressor)
{
return l_codec->m_codec_data.m_compression.opj_end_compress(l_codec->m_codec,l_cio,&(l_codec->m_event_mgr));
}
}
return false;
}
bool OPJ_CALLCONV opj_set_info_handler(opj_codec_t * p_codec, opj_msg_callback p_callback,void * p_user_data)
{
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
if
(! l_codec)
{
return false;
}
l_codec->m_event_mgr.info_handler = p_callback;
l_codec->m_event_mgr.m_info_data = p_user_data;
return true;
}
bool OPJ_CALLCONV opj_set_warning_handler(opj_codec_t * p_codec, opj_msg_callback p_callback,void * p_user_data)
{
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
if
(! l_codec)
{
return false;
}
l_codec->m_event_mgr.warning_handler = p_callback;
l_codec->m_event_mgr.m_warning_data = p_user_data;
return true;
}
bool OPJ_CALLCONV opj_set_error_handler(opj_codec_t * p_codec, opj_msg_callback p_callback,void * p_user_data)
{
opj_codec_private_t * l_codec = (opj_codec_private_t *) p_codec;
if
(! l_codec)
{
return false;
}
l_codec->m_event_mgr.error_handler = p_callback;
l_codec->m_event_mgr.m_error_data = p_user_data;
return true;
}
/*bool OPJ_CALLCONV opj_encode_with_info(opj_cinfo_t *cinfo, opj_stream_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
if(cinfo && cio && image) {
switch(cinfo->codec_format) {
case CODEC_J2K:
return j2k_encode((opj_j2k_t*)cinfo->j2k_handle, (opj_stream_private_t *) cio, image, cstr_info);
case CODEC_JP2:
return opj_jp2_encode((opj_jp2_t*)cinfo->jp2_handle, (opj_stream_private_t *) cio, image, cstr_info);
case CODEC_JPT:
case CODEC_UNKNOWN:
default:
break;
}
}
return false;
}*/
void OPJ_CALLCONV opj_destroy_cstr_info(opj_codestream_info_t *cstr_info) {
if
(cstr_info)
{
int tileno;
for (tileno = 0; tileno < cstr_info->tw * cstr_info->th; tileno++) {
opj_tile_info_t *tile_info = &cstr_info->tile[tileno];
opj_free(tile_info->thresh);
opj_free(tile_info->packet);
opj_free(tile_info->tp);
}
opj_free(cstr_info->tile);
opj_free(cstr_info->marker);
}
}
bool OPJ_CALLCONV opj_set_MCT(opj_cparameters_t *parameters,OPJ_FLOAT32 * pEncodingMatrix,OPJ_INT32 * p_dc_shift,OPJ_UINT32 pNbComp)
{
OPJ_UINT32 l_matrix_size = pNbComp * pNbComp * sizeof(OPJ_FLOAT32);
OPJ_UINT32 l_dc_shift_size = pNbComp * sizeof(OPJ_INT32);
OPJ_UINT32 l_mct_total_size = l_matrix_size + l_dc_shift_size;
// add MCT capability
int rsiz = (int)parameters->cp_rsiz | (int)MCT;
parameters->cp_rsiz = (OPJ_RSIZ_CAPABILITIES)rsiz;
parameters->irreversible = 1;
// use array based MCT
parameters->tcp_mct = 2;
parameters->mct_data = opj_malloc(l_mct_total_size);
if
(! parameters->mct_data)
{
return false;
}
memcpy(parameters->mct_data,pEncodingMatrix,l_matrix_size);
memcpy(((OPJ_BYTE *) parameters->mct_data) + l_matrix_size,p_dc_shift,l_dc_shift_size);
return true;
}
/**
* Restricts the decoding to the given image area.
*
* @param parameters the parameters to update.
* @param p_start_x the starting x position of the area to decode.
* @param p_start_y the starting y position of the area to decode.
* @param p_end_x the x end position of the area to decode.
* @param p_end_x the y end position of the area to decode.
*/
OPJ_API bool OPJ_CALLCONV opj_restrict_decoding (opj_dparameters_t *parameters,OPJ_INT32 p_start_x,OPJ_INT32 p_start_y,OPJ_INT32 p_end_x,OPJ_INT32 p_end_y)
{
parameters->m_use_restrict_decode = 1;
parameters->m_decode_start_x = p_start_x;
parameters->m_decode_start_y = p_start_y;
parameters->m_decode_end_x = p_end_x;
parameters->m_decode_end_y = p_end_y;
return true;
}
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