3072 lines
85 KiB
C
3072 lines
85 KiB
C
/*
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* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2007, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2010-2011, Kaori Hagihara
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opj_includes.h"
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/** @defgroup JP2 JP2 - JPEG-2000 file format reader/writer */
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/*@{*/
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#define BOX_SIZE 1024
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/** @name Local static functions */
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/*@{*/
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/**
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Read box headers
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@param cinfo Codec context info
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@param cio Input stream
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@param box
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@return Returns true if successful, returns false otherwise
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*/
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static opj_bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box);
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/*static void jp2_write_url(opj_cio_t *cio, char *Idx_file);*/
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/**
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* Reads a IHDR box - Image Header box
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*
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* @param p_image_header_data pointer to actual data (already read from file)
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* @param jp2 the jpeg2000 file codec.
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* @param p_image_header_size the size of the image header
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* @param p_manager the user event manager.
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*
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* @return true if the image header is valid, false else.
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*/
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static opj_bool opj_jp2_read_ihdr( opj_jp2_v2_t *jp2,
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OPJ_BYTE *p_image_header_data,
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OPJ_INT32 p_image_header_size,
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opj_event_mgr_t * p_manager );
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static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio);
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/**
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* Writes the Image Header box - Image Header box.
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*
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* @param jp2 jpeg2000 file codec.
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* @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
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*
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* @return the data being copied.
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*/
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static unsigned char * jp2_write_ihdr_v2( opj_jp2_v2_t *jp2,
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unsigned int * p_nb_bytes_written );
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static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio);
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/**
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* Writes the Bit per Component box.
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*
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* @param jp2 jpeg2000 file codec.
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* @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
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*
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* @return the data being copied.
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*/
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static unsigned char * jp2_write_bpcc_v2( opj_jp2_v2_t *jp2,
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unsigned int * p_nb_bytes_written );
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/**
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* Reads a Bit per Component box.
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*
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* @param p_bpc_header_data pointer to actual data (already read from file)
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* @param jp2 the jpeg2000 file codec.
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* @param p_bpc_header_size the size of the bpc header
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* @param p_manager the user event manager.
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*
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* @return true if the bpc header is valid, fale else.
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*/
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static opj_bool opj_jp2_read_bpcc( opj_jp2_v2_t *jp2,
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OPJ_BYTE * p_bpc_header_data,
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OPJ_INT32 p_bpc_header_size,
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opj_event_mgr_t * p_manager );
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static opj_bool opj_jp2_read_cdef( opj_jp2_v2_t * jp2,
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OPJ_BYTE * p_cdef_header_data,
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OPJ_UINT32 p_cdef_header_size,
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opj_event_mgr_t * p_manager );
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static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio);
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/**
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Write the FTYP box - File type box
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@param jp2 JP2 handle
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@param cio Output buffer stream
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*/
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/**
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* Writes the Colour Specification box.
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*
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* @param jp2 jpeg2000 file codec.
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* @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
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*
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* @return the data being copied.
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*/
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static unsigned char *jp2_write_colr_v2(opj_jp2_v2_t *jp2,
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unsigned int * p_nb_bytes_written );
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static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
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/**
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Read the FTYP box - File type box
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@param jp2 JP2 handle
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@param cio Input buffer stream
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@return Returns true if successful, returns false otherwise
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*/
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static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio);
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/**
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* Writes a FTYP box - File type box
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*
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* @param cio the stream to write data to.
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* @param jp2 the jpeg2000 file codec.
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* @param p_manager the user event manager.
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*
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* @return true if writting was successful.
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*/
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static opj_bool jp2_write_ftyp_v2( opj_jp2_v2_t *jp2,
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struct opj_stream_private *cio,
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struct opj_event_mgr * p_manager );
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/**
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* Reads a a FTYP box - File type box
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*
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* @param p_header_data the data contained in the FTYP box.
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* @param jp2 the jpeg2000 file codec.
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* @param p_header_size the size of the data contained in the FTYP box.
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* @param p_manager the user event manager.
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*
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* @return true if the FTYP box is valid.
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*/
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static opj_bool jp2_read_ftyp_v2( opj_jp2_v2_t *jp2,
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unsigned char * p_header_data,
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OPJ_UINT32 p_header_size,
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struct opj_event_mgr * p_manager );
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/**
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* Skips the Jpeg2000 Codestream Header box - JP2C Header box.
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*
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* @param cio the stream to write data to.
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* @param jp2 the jpeg2000 file codec.
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* @param p_manager user event manager.
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*
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* @return true if writting was successful.
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*/
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opj_bool jp2_skip_jp2c( opj_jp2_v2_t *jp2,
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struct opj_stream_private *cio,
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struct opj_event_mgr * p_manager );
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/**
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* Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
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*
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* @param p_header_data the data contained in the file header box.
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* @param jp2 the jpeg2000 file codec.
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* @param p_header_size the size of the data contained in the file header box.
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* @param p_manager the user event manager.
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*
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* @return true if the JP2 Header box was successfully reconized.
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*/
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static opj_bool opj_jp2_read_jp2h( opj_jp2_v2_t *jp2,
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OPJ_BYTE *p_header_data,
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OPJ_UINT32 p_header_size,
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opj_event_mgr_t * p_manager );
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static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info);
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/**
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* Writes the Jpeg2000 codestream Header box - JP2C Header box. This function must be called AFTER the coding has been done.
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*
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* @param cio the stream to write data to.
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* @param jp2 the jpeg2000 file codec.
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* @param p_manager user event manager.
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*
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* @return true if writting was successful.
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*/
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static opj_bool jp2_write_jp2c_v2( opj_jp2_v2_t *jp2,
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struct opj_stream_private *cio,
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struct opj_event_mgr * p_manager );
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static opj_bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset);
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static void jp2_write_jp(opj_cio_t *cio);
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/**
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Read the JP box - JPEG 2000 signature
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@param jp2 JP2 handle
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@param cio Input buffer stream
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@return Returns true if successful, returns false otherwise
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*/
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static opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio);
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/**
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* Reads a jpeg2000 file signature box.
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*
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* @param p_header_data the data contained in the signature box.
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* @param jp2 the jpeg2000 file codec.
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* @param p_header_size the size of the data contained in the signature box.
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* @param p_manager the user event manager.
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*
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* @return true if the file signature box is valid.
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*/
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static opj_bool jp2_read_jp_v2(
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opj_jp2_v2_t *jp2,
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unsigned char * p_header_data,
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unsigned int p_header_size,
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struct opj_event_mgr * p_manager
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);
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/**
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Decode the structure of a JP2 file
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@param jp2 JP2 handle
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@param cio Input buffer stream
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@param color Collector for profile, cdef and pclr data
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@return Returns true if successful, returns false otherwise
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*/
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static opj_bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio,
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opj_jp2_color_t *color);
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/**
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Apply collected palette data
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@param color Collector for profile, cdef and pclr data
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@param image
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*/
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static void jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color);
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/**
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Collect palette data
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@param jp2 JP2 handle
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@param cio Input buffer stream
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@param box
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@param color Collector for profile, cdef and pclr data
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@return Returns true if successful, returns false otherwise
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*/
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static opj_bool opj_jp2_read_pclr( opj_jp2_v2_t *jp2,
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OPJ_BYTE * p_pclr_header_data,
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OPJ_UINT32 p_pclr_header_size,
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opj_event_mgr_t * p_manager );
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/**
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Collect component mapping data
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@param jp2 JP2 handle
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@param cio Input buffer stream
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@param box
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@param color Collector for profile, cdef and pclr data
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@return Returns true if successful, returns false otherwise
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*/
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static opj_bool opj_jp2_read_cmap( opj_jp2_v2_t * jp2,
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OPJ_BYTE * p_cmap_header_data,
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OPJ_UINT32 p_cmap_header_size,
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opj_event_mgr_t * p_manager );
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/**
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* Reads the Color Specification box.
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*
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* @param p_colr_header_data pointer to actual data (already read from file)
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* @param jp2 the jpeg2000 file codec.
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* @param p_colr_header_size the size of the color header
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* @param p_manager the user event manager.
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*
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* @return true if the bpc header is valid, fale else.
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*/
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static opj_bool opj_jp2_read_colr( opj_jp2_v2_t *jp2,
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OPJ_BYTE * p_colr_header_data,
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OPJ_UINT32 p_colr_header_size,
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opj_event_mgr_t * p_manager );
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/**
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Write file Index (superbox)
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@param[in] offset_jp2c offset of jp2c box
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@param[in] length_jp2c length of jp2c box
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@param[in] offset_idx offset of cidx box
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@param[in] length_idx length of cidx box
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@param[in] cio file output handle
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@return length of fidx box
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*/
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static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio);
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/**
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Write index Finder box
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@param[in] offset offset of fidx box
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@param[in] length length of fidx box
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@param[in] cio file output handle
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*/
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static void write_iptr( int offset, int length, opj_cio_t *cio);
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/**
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Write proxy box
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@param[in] offset_jp2c offset of jp2c box
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@param[in] length_jp2c length of jp2c box
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@param[in] offset_idx offset of cidx box
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@param[in] length_idx length of cidx box
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@param[in] cio file output handle
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*/
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static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio);
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/*@}*/
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/*@}*/
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/**
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* Sets up the procedures to do on writting header after the codestream.
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* Developpers wanting to extend the library can add their own writting procedures.
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*/
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static void jp2_setup_end_header_writting (opj_jp2_v2_t *jp2);
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/**
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* Sets up the procedures to do on reading header after the codestream.
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* Developpers wanting to extend the library can add their own writting procedures.
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*/
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static void jp2_setup_end_header_reading (opj_jp2_v2_t *jp2);
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/**
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* Reads a jpeg2000 file header structure.
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*
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* @param cio the stream to read data from.
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* @param jp2 the jpeg2000 file header structure.
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* @param p_manager the user event manager.
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*
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* @return true if the box is valid.
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*/
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opj_bool jp2_read_header_procedure(
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opj_jp2_v2_t *jp2,
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struct opj_stream_private *cio,
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struct opj_event_mgr * p_manager
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);
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/**
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* Excutes the given procedures on the given codec.
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*
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* @param p_procedure_list the list of procedures to execute
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* @param jp2 the jpeg2000 file codec to execute the procedures on.
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* @param cio the stream to execute the procedures on.
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* @param p_manager the user manager.
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*
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* @return true if all the procedures were successfully executed.
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*/
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static opj_bool jp2_exec (
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opj_jp2_v2_t * jp2,
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struct opj_procedure_list * p_procedure_list,
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struct opj_stream_private *cio,
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struct opj_event_mgr * p_manager
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);
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/**
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* Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
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*
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* @param cio the input stream to read data from.
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* @param box the box structure to fill.
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* @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
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* @param p_manager user event manager.
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*
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* @return true if the box is reconized, false otherwise
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*/
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static opj_bool jp2_read_boxhdr_v2(
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opj_jp2_box_t *box,
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OPJ_UINT32 * p_number_bytes_read,
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struct opj_stream_private *cio,
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struct opj_event_mgr * p_manager
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);
|
||
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/**
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* Finds the execution function related to the given box id.
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*
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* @param p_id the id of the handler to fetch.
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*
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* @return the given handler or NULL if it could not be found.
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*/
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static const opj_jp2_header_handler_t * jp2_find_handler (int p_id );
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|
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/**
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* Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
|
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* are valid. Developpers wanting to extend the library can add their own validation procedures.
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*/
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static void jp2_setup_encoding_validation (opj_jp2_v2_t *jp2);
|
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|
||
|
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/**
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* Sets up the procedures to do on writting header. Developpers wanting to extend the library can add their own writting procedures.
|
||
*/
|
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static void jp2_setup_header_writting (opj_jp2_v2_t *jp2);
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|
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/**
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* The default validation procedure without any extension.
|
||
*
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* @param jp2 the jpeg2000 codec to validate.
|
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* @param cio the input stream to validate.
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||
* @param p_manager the user event manager.
|
||
*
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* @return true if the parameters are correct.
|
||
*/
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opj_bool jp2_default_validation ( opj_jp2_v2_t * jp2,
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struct opj_stream_private *cio,
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struct opj_event_mgr * p_manager );
|
||
|
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/**
|
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* Finds the image execution function related to the given box id.
|
||
*
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||
* @param p_id the id of the handler to fetch.
|
||
*
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* @return the given handler or NULL if it could not be found.
|
||
*/
|
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static const opj_jp2_header_handler_t * jp2_img_find_handler (int p_id);
|
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|
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const opj_jp2_header_handler_t jp2_header [] =
|
||
{
|
||
{JP2_JP,jp2_read_jp_v2},
|
||
{JP2_FTYP,jp2_read_ftyp_v2},
|
||
{JP2_JP2H,opj_jp2_read_jp2h}
|
||
};
|
||
|
||
const opj_jp2_header_handler_t jp2_img_header [] =
|
||
{
|
||
{JP2_IHDR,opj_jp2_read_ihdr},
|
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{JP2_COLR,opj_jp2_read_colr},
|
||
{JP2_BPCC,opj_jp2_read_bpcc},
|
||
{JP2_PCLR,opj_jp2_read_pclr},
|
||
{JP2_CMAP,opj_jp2_read_cmap},
|
||
{JP2_CDEF,opj_jp2_read_cdef}
|
||
|
||
};
|
||
|
||
/**
|
||
* Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
|
||
*
|
||
* @param p_data the character string to read data from.
|
||
* @param box the box structure to fill.
|
||
* @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
|
||
* @param p_box_max_size the maximum number of bytes in the box.
|
||
*
|
||
* @return true if the box is reconized, false otherwise
|
||
*/
|
||
static opj_bool jp2_read_boxhdr_char(
|
||
opj_jp2_box_t *box,
|
||
OPJ_BYTE * p_data,
|
||
OPJ_UINT32 * p_number_bytes_read,
|
||
OPJ_UINT32 p_box_max_size,
|
||
struct opj_event_mgr * p_manager
|
||
);
|
||
|
||
/**
|
||
* Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters
|
||
* are valid. Developpers wanting to extend the library can add their own validation procedures.
|
||
*/
|
||
static void jp2_setup_decoding_validation (opj_jp2_v2_t *jp2);
|
||
|
||
/**
|
||
* Sets up the procedures to do on reading header.
|
||
* Developpers wanting to extend the library can add their own writting procedures.
|
||
*/
|
||
static void jp2_setup_header_reading (opj_jp2_v2_t *jp2);
|
||
|
||
|
||
|
||
/* ----------------------------------------------------------------------- */
|
||
|
||
static opj_bool jp2_read_boxhdr(opj_common_ptr cinfo, opj_cio_t *cio, opj_jp2_box_t *box) {
|
||
box->init_pos = cio_tell(cio);
|
||
box->length = cio_read(cio, 4);
|
||
box->type = cio_read(cio, 4);
|
||
if (box->length == 1) {
|
||
if (cio_read(cio, 4) != 0) {
|
||
opj_event_msg(cinfo, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
box->length = cio_read(cio, 4);
|
||
if (box->length == 0)
|
||
box->length = cio_numbytesleft(cio) + 12;
|
||
}
|
||
else if (box->length == 0) {
|
||
box->length = cio_numbytesleft(cio) + 8;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Reads a box header. The box is the way data is packed inside a jpeg2000 file structure.
|
||
*
|
||
* @param cio the input stream to read data from.
|
||
* @param box the box structure to fill.
|
||
* @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (should usually be 8).
|
||
* @param p_manager user event manager.
|
||
*
|
||
* @return true if the box is reconized, false otherwise
|
||
*/
|
||
opj_bool jp2_read_boxhdr_v2(opj_jp2_box_t *box, OPJ_UINT32 * p_number_bytes_read, opj_stream_private_t *cio, opj_event_mgr_t * p_manager)
|
||
{
|
||
/* read header from file */
|
||
unsigned char l_data_header [8];
|
||
|
||
/* preconditions */
|
||
assert(cio != 00);
|
||
assert(box != 00);
|
||
assert(p_number_bytes_read != 00);
|
||
assert(p_manager != 00);
|
||
|
||
*p_number_bytes_read = opj_stream_read_data(cio,l_data_header,8,p_manager);
|
||
if (*p_number_bytes_read != 8) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* process read data */
|
||
opj_read_bytes(l_data_header,&(box->length), 4);
|
||
opj_read_bytes(l_data_header+4,&(box->type), 4);
|
||
|
||
/* do we have a "special very large box ?" */
|
||
/* read then the XLBox */
|
||
if (box->length == 1) {
|
||
OPJ_UINT32 l_xl_part_size;
|
||
|
||
OPJ_UINT32 l_nb_bytes_read = opj_stream_read_data(cio,l_data_header,8,p_manager);
|
||
if (l_nb_bytes_read != 8) {
|
||
if (l_nb_bytes_read > 0) {
|
||
*p_number_bytes_read += l_nb_bytes_read;
|
||
}
|
||
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
opj_read_bytes(l_data_header,&l_xl_part_size, 4);
|
||
if (l_xl_part_size != 0) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
opj_read_bytes(l_data_header,&(box->length), 4);
|
||
}
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
#if 0
|
||
static void jp2_write_url(opj_cio_t *cio, char *Idx_file) {
|
||
unsigned int i;
|
||
opj_jp2_box_t box;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_URL, 4); /* DBTL */
|
||
cio_write(cio, 0, 1); /* VERS */
|
||
cio_write(cio, 0, 3); /* FLAG */
|
||
|
||
if(Idx_file) {
|
||
for (i = 0; i < strlen(Idx_file); i++) {
|
||
cio_write(cio, Idx_file[i], 1);
|
||
}
|
||
}
|
||
|
||
box.length = cio_tell(cio) - box.init_pos;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
}
|
||
#endif
|
||
|
||
|
||
/**
|
||
* Reads a IHDR box - Image Header box
|
||
*
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_image_header_data pointer to actual data (already read from file)
|
||
* @param p_image_header_size the size of the image header
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the image header is valid, fale else.
|
||
*/
|
||
opj_bool opj_jp2_read_ihdr( opj_jp2_v2_t *jp2,
|
||
OPJ_BYTE *p_image_header_data,
|
||
OPJ_INT32 p_image_header_size,
|
||
opj_event_mgr_t * p_manager )
|
||
{
|
||
/* preconditions */
|
||
assert(p_image_header_data != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
if (p_image_header_size != 14) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Bad image header box (bad size)\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
opj_read_bytes(p_image_header_data,&(jp2->h),4); /* HEIGHT */
|
||
p_image_header_data += 4;
|
||
opj_read_bytes(p_image_header_data,&(jp2->w),4); /* WIDTH */
|
||
p_image_header_data += 4;
|
||
opj_read_bytes(p_image_header_data,&(jp2->numcomps),2); /* NC */
|
||
p_image_header_data += 2;
|
||
|
||
/* allocate memory for components */
|
||
jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
|
||
if (jp2->comps == 0) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle image header (ihdr)\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
memset(jp2->comps,0,jp2->numcomps * sizeof(opj_jp2_comps_t));
|
||
|
||
opj_read_bytes(p_image_header_data,&(jp2->bpc),1); /* BPC */
|
||
++ p_image_header_data;
|
||
|
||
/* if equal to 0 then need a BPC box (cf. chapter about image header box of the norm) */
|
||
/*if (jp2->bpc == 0){
|
||
indicate with a flag that we will wait a BPC box
|
||
}*/
|
||
|
||
opj_read_bytes(p_image_header_data,&(jp2->C),1); /* C */
|
||
++ p_image_header_data;
|
||
|
||
/* Should be equal to 7 cf. chapter about image header box of the norm */
|
||
if (jp2->C != 7){
|
||
opj_event_msg_v2(p_manager, EVT_INFO, "JP2 IHDR box: compression type indicate that the file is not a conforming JP2 file (%d) \n", jp2->C);
|
||
}
|
||
|
||
opj_read_bytes(p_image_header_data,&(jp2->UnkC),1); /* UnkC */
|
||
++ p_image_header_data;
|
||
opj_read_bytes(p_image_header_data,&(jp2->IPR),1); /* IPR */
|
||
++ p_image_header_data;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
static void jp2_write_ihdr(opj_jp2_t *jp2, opj_cio_t *cio) {
|
||
opj_jp2_box_t box;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_IHDR, 4); /* IHDR */
|
||
|
||
cio_write(cio, jp2->h, 4); /* HEIGHT */
|
||
cio_write(cio, jp2->w, 4); /* WIDTH */
|
||
cio_write(cio, jp2->numcomps, 2); /* NC */
|
||
|
||
cio_write(cio, jp2->bpc, 1); /* BPC */
|
||
|
||
cio_write(cio, jp2->C, 1); /* C : Always 7 */
|
||
cio_write(cio, jp2->UnkC, 1); /* UnkC, colorspace unknown */
|
||
cio_write(cio, jp2->IPR, 1); /* IPR, no intellectual property */
|
||
|
||
box.length = cio_tell(cio) - box.init_pos;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
}
|
||
|
||
/**
|
||
* Writes the Image Header box - Image Header box.
|
||
*
|
||
* @param jp2 jpeg2000 file codec.
|
||
* @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
|
||
*
|
||
* @return the data being copied.
|
||
*/
|
||
static unsigned char * jp2_write_ihdr_v2( opj_jp2_v2_t *jp2,
|
||
unsigned int * p_nb_bytes_written )
|
||
{
|
||
unsigned char * l_ihdr_data,* l_current_ihdr_ptr;
|
||
|
||
// preconditions
|
||
assert(jp2 != 00);
|
||
assert(p_nb_bytes_written != 00);
|
||
|
||
/* default image header is 22 bytes wide */
|
||
l_ihdr_data = (unsigned char *) opj_malloc(22);
|
||
if (l_ihdr_data == 00) {
|
||
return 00;
|
||
}
|
||
memset(l_ihdr_data,0,22);
|
||
|
||
l_current_ihdr_ptr = l_ihdr_data;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr,22,4); /* write box size */
|
||
l_current_ihdr_ptr+=4;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr,JP2_IHDR, 4); /* IHDR */
|
||
l_current_ihdr_ptr+=4;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr,jp2->h, 4); /* HEIGHT */
|
||
l_current_ihdr_ptr+=4;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr, jp2->w, 4); /* WIDTH */
|
||
l_current_ihdr_ptr+=4;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr, jp2->numcomps, 2); /* NC */
|
||
l_current_ihdr_ptr+=2;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr, jp2->bpc, 1); /* BPC */
|
||
++l_current_ihdr_ptr;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr, jp2->C, 1); /* C : Always 7 */
|
||
++l_current_ihdr_ptr;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr, jp2->UnkC, 1); /* UnkC, colorspace unknown */
|
||
++l_current_ihdr_ptr;
|
||
|
||
opj_write_bytes(l_current_ihdr_ptr, jp2->IPR, 1); /* IPR, no intellectual property */
|
||
++l_current_ihdr_ptr;
|
||
|
||
*p_nb_bytes_written = 22;
|
||
|
||
return l_ihdr_data;
|
||
}
|
||
|
||
static void jp2_write_bpcc(opj_jp2_t *jp2, opj_cio_t *cio) {
|
||
unsigned int i;
|
||
opj_jp2_box_t box;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_BPCC, 4); /* BPCC */
|
||
|
||
for (i = 0; i < jp2->numcomps; i++) {
|
||
cio_write(cio, jp2->comps[i].bpcc, 1);
|
||
}
|
||
|
||
box.length = cio_tell(cio) - box.init_pos;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
}
|
||
|
||
|
||
/**
|
||
* Writes the Bit per Component box.
|
||
*
|
||
* @param jp2 jpeg2000 file codec.
|
||
* @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
|
||
*
|
||
* @return the data being copied.
|
||
*/
|
||
unsigned char * jp2_write_bpcc_v2( opj_jp2_v2_t *jp2,
|
||
unsigned int * p_nb_bytes_written )
|
||
{
|
||
unsigned int i;
|
||
/* room for 8 bytes for box and 1 byte for each component */
|
||
int l_bpcc_size = 8 + jp2->numcomps;
|
||
unsigned char * l_bpcc_data,* l_current_bpcc_ptr;
|
||
|
||
// preconditions
|
||
assert(jp2 != 00);
|
||
assert(p_nb_bytes_written != 00);
|
||
|
||
l_bpcc_data = (unsigned char *) opj_malloc(l_bpcc_size);
|
||
if (l_bpcc_data == 00) {
|
||
return 00;
|
||
}
|
||
memset(l_bpcc_data,0,l_bpcc_size);
|
||
|
||
l_current_bpcc_ptr = l_bpcc_data;
|
||
|
||
opj_write_bytes(l_current_bpcc_ptr,l_bpcc_size,4); /* write box size */
|
||
l_current_bpcc_ptr += 4;
|
||
|
||
opj_write_bytes(l_current_bpcc_ptr,JP2_BPCC,4); /* BPCC */
|
||
l_current_bpcc_ptr += 4;
|
||
|
||
for (i = 0; i < jp2->numcomps; ++i) {
|
||
opj_write_bytes(l_current_bpcc_ptr, jp2->comps[i].bpcc, 1); /* write each component information */
|
||
++l_current_bpcc_ptr;
|
||
}
|
||
|
||
*p_nb_bytes_written = l_bpcc_size;
|
||
|
||
return l_bpcc_data;
|
||
}
|
||
|
||
|
||
/**
|
||
* Reads a Bit per Component box.
|
||
*
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_bpc_header_data pointer to actual data (already read from file)
|
||
* @param p_bpc_header_size pointer that will hold the size of the bpc header
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the bpc header is valid, false otherwise.
|
||
*/
|
||
static opj_bool opj_jp2_read_bpcc( opj_jp2_v2_t *jp2,
|
||
OPJ_BYTE * p_bpc_header_data,
|
||
OPJ_INT32 p_bpc_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
OPJ_UINT32 i;
|
||
|
||
/* preconditions */
|
||
assert(p_bpc_header_data != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* TODO MSD */
|
||
/*if (jp2->bpc != 0 ){
|
||
opj_event_msg_v2(p_manager, EVT_WARNING, "A BPCC header box is available although BPC is different to zero (%d)\n",jp2->bpc);
|
||
}*/
|
||
|
||
/* and length is relevant */
|
||
if (p_bpc_header_size != jp2->numcomps) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* read info for each component */
|
||
for (i = 0; i < jp2->numcomps; ++i) {
|
||
opj_read_bytes(p_bpc_header_data,&jp2->comps[i].bpcc ,1); /* read each BPCC component */
|
||
++p_bpc_header_data;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
static void jp2_write_colr(opj_jp2_t *jp2, opj_cio_t *cio) {
|
||
opj_jp2_box_t box;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_COLR, 4); /* COLR */
|
||
|
||
cio_write(cio, jp2->meth, 1); /* METH */
|
||
cio_write(cio, jp2->precedence, 1); /* PRECEDENCE */
|
||
cio_write(cio, jp2->approx, 1); /* APPROX */
|
||
|
||
if(jp2->meth == 2)
|
||
jp2->enumcs = 0;
|
||
|
||
cio_write(cio, jp2->enumcs, 4); /* EnumCS */
|
||
|
||
box.length = cio_tell(cio) - box.init_pos;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
}
|
||
|
||
/**
|
||
* Writes the Colour Specification box.
|
||
*
|
||
* @param jp2 jpeg2000 file codec.
|
||
* @param p_nb_bytes_written pointer to store the nb of bytes written by the function.
|
||
*
|
||
* @return the data being copied.
|
||
*/
|
||
unsigned char *jp2_write_colr_v2( opj_jp2_v2_t *jp2,
|
||
unsigned int * p_nb_bytes_written )
|
||
{
|
||
/* room for 8 bytes for box 3 for common data and variable upon profile*/
|
||
unsigned int l_colr_size = 11;
|
||
unsigned char * l_colr_data,* l_current_colr_ptr;
|
||
|
||
// preconditions
|
||
assert(jp2 != 00);
|
||
assert(p_nb_bytes_written != 00);
|
||
|
||
switch (jp2->meth) {
|
||
case 1 :
|
||
l_colr_size += 4;
|
||
break;
|
||
case 2 :
|
||
++l_colr_size;
|
||
break;
|
||
default :
|
||
return 00;
|
||
}
|
||
|
||
l_colr_data = (unsigned char *) opj_malloc(l_colr_size);
|
||
if (l_colr_data == 00) {
|
||
return 00;
|
||
}
|
||
memset(l_colr_data,0,l_colr_size);
|
||
|
||
l_current_colr_ptr = l_colr_data;
|
||
|
||
opj_write_bytes(l_current_colr_ptr,l_colr_size,4); /* write box size */
|
||
l_current_colr_ptr += 4;
|
||
|
||
opj_write_bytes(l_current_colr_ptr,JP2_COLR,4); /* BPCC */
|
||
l_current_colr_ptr += 4;
|
||
|
||
opj_write_bytes(l_current_colr_ptr, jp2->meth,1); /* METH */
|
||
++l_current_colr_ptr;
|
||
|
||
opj_write_bytes(l_current_colr_ptr, jp2->precedence,1); /* PRECEDENCE */
|
||
++l_current_colr_ptr;
|
||
|
||
opj_write_bytes(l_current_colr_ptr, jp2->approx,1); /* APPROX */
|
||
++l_current_colr_ptr;
|
||
|
||
if (jp2->meth == 1) {
|
||
opj_write_bytes(l_current_colr_ptr, jp2->enumcs,4); /* EnumCS */
|
||
}
|
||
else {
|
||
opj_write_bytes(l_current_colr_ptr, 0, 1); /* PROFILE (??) */
|
||
}
|
||
|
||
*p_nb_bytes_written = l_colr_size;
|
||
|
||
return l_colr_data;
|
||
}
|
||
|
||
static void jp2_free_pclr(opj_jp2_color_t *color)
|
||
{
|
||
opj_free(color->jp2_pclr->channel_sign);
|
||
opj_free(color->jp2_pclr->channel_size);
|
||
opj_free(color->jp2_pclr->entries);
|
||
|
||
if(color->jp2_pclr->cmap) opj_free(color->jp2_pclr->cmap);
|
||
|
||
opj_free(color->jp2_pclr); color->jp2_pclr = NULL;
|
||
}
|
||
|
||
static void free_color_data(opj_jp2_color_t *color)
|
||
{
|
||
if(color->jp2_pclr)
|
||
{
|
||
jp2_free_pclr(color);
|
||
}
|
||
if(color->jp2_cdef)
|
||
{
|
||
if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info);
|
||
opj_free(color->jp2_cdef);
|
||
}
|
||
if(color->icc_profile_buf) opj_free(color->icc_profile_buf);
|
||
}
|
||
|
||
|
||
static void jp2_apply_pclr(opj_image_t *image, opj_jp2_color_t *color)
|
||
{
|
||
opj_image_comp_t *old_comps, *new_comps;
|
||
OPJ_BYTE *channel_size, *channel_sign;
|
||
OPJ_UINT32 *entries;
|
||
opj_jp2_cmap_comp_t *cmap;
|
||
OPJ_INT32 *src, *dst;
|
||
OPJ_UINT32 j, max;
|
||
OPJ_UINT16 i, nr_channels, cmp, pcol;
|
||
OPJ_INT32 k, top_k;
|
||
|
||
channel_size = color->jp2_pclr->channel_size;
|
||
channel_sign = color->jp2_pclr->channel_sign;
|
||
entries = color->jp2_pclr->entries;
|
||
cmap = color->jp2_pclr->cmap;
|
||
nr_channels = color->jp2_pclr->nr_channels;
|
||
|
||
old_comps = image->comps;
|
||
new_comps = (opj_image_comp_t*)
|
||
opj_malloc(nr_channels * sizeof(opj_image_comp_t));
|
||
|
||
for(i = 0; i < nr_channels; ++i) {
|
||
pcol = cmap[i].pcol; cmp = cmap[i].cmp;
|
||
|
||
new_comps[pcol] = old_comps[cmp];
|
||
|
||
/* Direct use */
|
||
if(cmap[i].mtyp == 0){
|
||
old_comps[cmp].data = NULL; continue;
|
||
}
|
||
|
||
/* Palette mapping: */
|
||
new_comps[pcol].data = (int*)
|
||
opj_malloc(old_comps[cmp].w * old_comps[cmp].h * sizeof(int));
|
||
new_comps[pcol].prec = channel_size[i];
|
||
new_comps[pcol].sgnd = channel_sign[i];
|
||
}
|
||
|
||
top_k = color->jp2_pclr->nr_entries - 1;
|
||
|
||
for(i = 0; i < nr_channels; ++i) {
|
||
/* Direct use: */
|
||
if(cmap[i].mtyp == 0) continue;
|
||
|
||
/* Palette mapping: */
|
||
cmp = cmap[i].cmp; pcol = cmap[i].pcol;
|
||
src = old_comps[cmp].data;
|
||
dst = new_comps[pcol].data;
|
||
max = new_comps[pcol].w * new_comps[pcol].h;
|
||
|
||
for(j = 0; j < max; ++j)
|
||
{
|
||
/* The index */
|
||
if((k = src[j]) < 0) k = 0; else if(k > top_k) k = top_k;
|
||
|
||
/* The colour */
|
||
dst[j] = entries[k * nr_channels + pcol];
|
||
}
|
||
}
|
||
|
||
max = image->numcomps;
|
||
for(i = 0; i < max; ++i) {
|
||
if(old_comps[i].data) opj_free(old_comps[i].data);
|
||
}
|
||
|
||
opj_free(old_comps);
|
||
image->comps = new_comps;
|
||
image->numcomps = nr_channels;
|
||
|
||
jp2_free_pclr(color);
|
||
|
||
}/* apply_pclr() */
|
||
|
||
/**
|
||
* Reads a palette box.
|
||
*
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_pclr_header_data pointer to actual data (already read from file)
|
||
* @param p_pclr_header_size pointer that will hold the size of the PCLR header
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the bpc header is valid, fale else.
|
||
*/
|
||
static opj_bool opj_jp2_read_pclr( opj_jp2_v2_t *jp2,
|
||
OPJ_BYTE * p_pclr_header_data,
|
||
OPJ_UINT32 p_pclr_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
opj_jp2_pclr_t *jp2_pclr;
|
||
OPJ_BYTE *channel_size, *channel_sign;
|
||
OPJ_UINT32 *entries;
|
||
OPJ_UINT16 nr_entries,nr_channels;
|
||
OPJ_UINT16 i, j;
|
||
OPJ_UINT32 l_value;
|
||
|
||
/* preconditions */
|
||
assert(p_pclr_header_data != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
(void)p_pclr_header_size;
|
||
|
||
if(jp2->color.jp2_pclr)
|
||
return OPJ_FALSE;
|
||
|
||
opj_read_bytes(p_pclr_header_data, &l_value , 2); /* NE */
|
||
p_pclr_header_data += 2;
|
||
nr_entries = (OPJ_UINT16) l_value;
|
||
|
||
opj_read_bytes(p_pclr_header_data, &l_value , 1); /* NPC */
|
||
++p_pclr_header_data;
|
||
nr_channels = (OPJ_UINT16) l_value;
|
||
|
||
entries = (OPJ_UINT32*) opj_malloc(nr_channels * nr_entries * sizeof(OPJ_UINT32));
|
||
channel_size = (OPJ_BYTE*) opj_malloc(nr_channels);
|
||
channel_sign = (OPJ_BYTE*) opj_malloc(nr_channels);
|
||
|
||
jp2_pclr = (opj_jp2_pclr_t*)opj_malloc(sizeof(opj_jp2_pclr_t));
|
||
jp2_pclr->channel_sign = channel_sign;
|
||
jp2_pclr->channel_size = channel_size;
|
||
jp2_pclr->entries = entries;
|
||
jp2_pclr->nr_entries = nr_entries;
|
||
jp2_pclr->nr_channels = nr_channels;
|
||
jp2_pclr->cmap = NULL;
|
||
|
||
jp2->color.jp2_pclr = jp2_pclr;
|
||
|
||
for(i = 0; i < nr_channels; ++i) {
|
||
opj_read_bytes(p_pclr_header_data, &l_value , 1); /* Bi */
|
||
++p_pclr_header_data;
|
||
|
||
channel_size[i] = (l_value & 0x7f) + 1;
|
||
channel_sign[i] = (l_value & 0x80)? 1 : 0;
|
||
}
|
||
|
||
for(j = 0; j < nr_entries; ++j) {
|
||
for(i = 0; i < nr_channels; ++i) {
|
||
int bytes_to_read = (channel_size[i]+7)>>3;
|
||
|
||
opj_read_bytes(p_pclr_header_data, &l_value , bytes_to_read); /* Cji */
|
||
p_pclr_header_data += bytes_to_read;
|
||
*entries = (OPJ_UINT32) l_value;
|
||
entries++;
|
||
}
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Reads the Component Mapping box.
|
||
*
|
||
* @param p_cmap_header_data pointer to actual data (already read from file)
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_cmap_header_size pointer that will hold the size of the color header
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the cdef header is valid, false else.
|
||
*/
|
||
static opj_bool opj_jp2_read_cmap( opj_jp2_v2_t * jp2,
|
||
OPJ_BYTE * p_cmap_header_data,
|
||
OPJ_UINT32 p_cmap_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
opj_jp2_cmap_comp_t *cmap;
|
||
OPJ_BYTE i, nr_channels;
|
||
OPJ_UINT32 l_value;
|
||
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(p_cmap_header_data != 00);
|
||
assert(p_manager != 00);
|
||
(void)p_cmap_header_size;
|
||
|
||
/* Need nr_channels: */
|
||
if(jp2->color.jp2_pclr == NULL) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Need to read a PCLR box before the CMAP box.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* Part 1, I.5.3.5: 'There shall be at most one Component Mapping box
|
||
* inside a JP2 Header box' :
|
||
*/
|
||
if(jp2->color.jp2_pclr->cmap) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Only one CMAP box is allowed.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
nr_channels = jp2->color.jp2_pclr->nr_channels;
|
||
cmap = (opj_jp2_cmap_comp_t*) opj_malloc(nr_channels * sizeof(opj_jp2_cmap_comp_t));
|
||
|
||
for(i = 0; i < nr_channels; ++i) {
|
||
opj_read_bytes(p_cmap_header_data, &l_value, 2); /* CMP^i */
|
||
p_cmap_header_data +=2;
|
||
cmap[i].cmp = (OPJ_UINT16) l_value;
|
||
|
||
opj_read_bytes(p_cmap_header_data, &l_value, 1); /* MTYP^i */
|
||
++p_cmap_header_data;
|
||
cmap[i].mtyp = (OPJ_BYTE) l_value;
|
||
|
||
opj_read_bytes(p_cmap_header_data, &l_value, 1); /* PCOL^i */
|
||
++p_cmap_header_data;
|
||
cmap[i].pcol = (OPJ_BYTE) l_value;
|
||
}
|
||
|
||
jp2->color.jp2_pclr->cmap = cmap;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
static void jp2_apply_cdef(opj_image_t *image, opj_jp2_color_t *color)
|
||
{
|
||
opj_jp2_cdef_info_t *info;
|
||
OPJ_INT32 color_space;
|
||
OPJ_UINT16 i, n, cn, typ, asoc, acn;
|
||
|
||
color_space = image->color_space;
|
||
info = color->jp2_cdef->info;
|
||
n = color->jp2_cdef->n;
|
||
|
||
for(i = 0; i < n; ++i)
|
||
{
|
||
/* WATCH: acn = asoc - 1 ! */
|
||
if((asoc = info[i].asoc) == 0) continue;
|
||
|
||
cn = info[i].cn; typ = info[i].typ; acn = asoc - 1;
|
||
|
||
if(cn != acn)
|
||
{
|
||
opj_image_comp_t saved;
|
||
|
||
memcpy(&saved, &image->comps[cn], sizeof(opj_image_comp_t));
|
||
memcpy(&image->comps[cn], &image->comps[acn], sizeof(opj_image_comp_t));
|
||
memcpy(&image->comps[acn], &saved, sizeof(opj_image_comp_t));
|
||
|
||
info[i].asoc = cn + 1;
|
||
info[acn].asoc = info[acn].cn + 1;
|
||
}
|
||
}
|
||
|
||
if(color->jp2_cdef->info) opj_free(color->jp2_cdef->info);
|
||
|
||
opj_free(color->jp2_cdef); color->jp2_cdef = NULL;
|
||
|
||
}/* jp2_apply_cdef() */
|
||
|
||
/**
|
||
* Reads the Component Definition box.
|
||
*
|
||
* @param p_cdef_header_data pointer to actual data (already read from file)
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_cdef_header_size pointer that will hold the size of the color header
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the cdef header is valid, false else.
|
||
*/
|
||
static opj_bool opj_jp2_read_cdef( opj_jp2_v2_t * jp2,
|
||
OPJ_BYTE * p_cdef_header_data,
|
||
OPJ_UINT32 p_cdef_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
opj_jp2_cdef_info_t *cdef_info;
|
||
unsigned short i;
|
||
OPJ_UINT32 l_value;
|
||
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(p_cdef_header_data != 00);
|
||
assert(p_manager != 00);
|
||
(void)p_cdef_header_size;
|
||
|
||
/* Part 1, I.5.3.6: 'The shall be at most one Channel Definition box
|
||
* inside a JP2 Header box.'*/
|
||
if(jp2->color.jp2_cdef) return OPJ_FALSE;
|
||
|
||
opj_read_bytes(p_cdef_header_data,&l_value ,2); /* N */
|
||
p_cdef_header_data+= 2;
|
||
|
||
if ( (OPJ_UINT16)l_value == 0){ /* szukw000: FIXME */
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Number of channel description is equal to zero in CDEF box.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
cdef_info = (opj_jp2_cdef_info_t*) opj_malloc(l_value * sizeof(opj_jp2_cdef_info_t));
|
||
|
||
jp2->color.jp2_cdef = (opj_jp2_cdef_t*)opj_malloc(sizeof(opj_jp2_cdef_t));
|
||
jp2->color.jp2_cdef->info = cdef_info;
|
||
jp2->color.jp2_cdef->n = (OPJ_UINT16) l_value;
|
||
|
||
for(i = 0; i < jp2->color.jp2_cdef->n; ++i) {
|
||
opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Cn^i */
|
||
p_cdef_header_data +=2;
|
||
cdef_info[i].cn = (OPJ_UINT16) l_value;
|
||
|
||
opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Typ^i */
|
||
p_cdef_header_data +=2;
|
||
cdef_info[i].typ = (OPJ_UINT16) l_value;
|
||
|
||
opj_read_bytes(p_cdef_header_data, &l_value, 2); /* Asoc^i */
|
||
p_cdef_header_data +=2;
|
||
cdef_info[i].asoc = (OPJ_UINT16) l_value;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Reads the Colour Specification box.
|
||
*
|
||
* @param p_colr_header_data pointer to actual data (already read from file)
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_colr_header_size pointer that will hold the size of the color header
|
||
* @param p_colr_header_max_size maximum size of the header, any size bigger than this value should result the function to output false.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the bpc header is valid, fale else.
|
||
*/
|
||
static opj_bool opj_jp2_read_colr( opj_jp2_v2_t *jp2,
|
||
OPJ_BYTE * p_colr_header_data,
|
||
OPJ_UINT32 p_colr_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
OPJ_UINT32 l_value;
|
||
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(p_colr_header_data != 00);
|
||
assert(p_manager != 00);
|
||
|
||
if (p_colr_header_size < 3) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Bad COLR header box (bad size)\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* Part 1, I.5.3.3 : 'A conforming JP2 reader shall ignore all Colour
|
||
* Specification boxes after the first.'
|
||
*/
|
||
if(jp2->color.jp2_has_colr) {
|
||
opj_event_msg_v2(p_manager, EVT_INFO, "A conforming JP2 reader shall ignore all Colour Specification boxes after the first, so we ignore this one.\n");
|
||
p_colr_header_data += p_colr_header_size;
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
opj_read_bytes(p_colr_header_data,&jp2->meth ,1); /* METH */
|
||
++p_colr_header_data;
|
||
|
||
opj_read_bytes(p_colr_header_data,&jp2->precedence ,1); /* PRECEDENCE */
|
||
++p_colr_header_data;
|
||
|
||
opj_read_bytes(p_colr_header_data,&jp2->approx ,1); /* APPROX */
|
||
++p_colr_header_data;
|
||
|
||
if (jp2->meth == 1) {
|
||
if (p_colr_header_size != 7) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Bad BPCC header box (bad size)\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
opj_read_bytes(p_colr_header_data,&jp2->enumcs ,4); /* EnumCS */
|
||
}
|
||
else if (jp2->meth == 2) {
|
||
/* ICC profile */
|
||
int it_icc_value = 0;
|
||
int icc_len = p_colr_header_size - 3;
|
||
|
||
jp2->color.icc_profile_len = icc_len;
|
||
jp2->color.icc_profile_buf = (unsigned char*) opj_malloc(icc_len);
|
||
|
||
memset(jp2->color.icc_profile_buf, 0, icc_len * sizeof(unsigned char));
|
||
|
||
for (it_icc_value = 0; it_icc_value < icc_len; ++it_icc_value)
|
||
{
|
||
opj_read_bytes(p_colr_header_data,&l_value,1); /* icc values */
|
||
++p_colr_header_data;
|
||
jp2->color.icc_profile_buf[it_icc_value] = (OPJ_BYTE) l_value;
|
||
}
|
||
|
||
}
|
||
else /* TODO MSD */
|
||
opj_event_msg_v2(p_manager, EVT_INFO, "COLR BOX meth value is not a regular value (%d), so we will skip the fields following the approx field.\n", jp2->meth);
|
||
|
||
jp2->color.jp2_has_colr = 1;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
|
||
opj_bool opj_jp2_decode(opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *p_stream,
|
||
opj_image_t* p_image,
|
||
opj_event_mgr_t * p_manager)
|
||
{
|
||
if (!p_image)
|
||
return OPJ_FALSE;
|
||
|
||
/* J2K decoding */
|
||
if( ! opj_j2k_decode(jp2->j2k, p_stream, p_image, p_manager) ) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
if (!jp2->ignore_pclr_cmap_cdef){
|
||
|
||
/* Set Image Color Space */
|
||
if (jp2->enumcs == 16)
|
||
p_image->color_space = CLRSPC_SRGB;
|
||
else if (jp2->enumcs == 17)
|
||
p_image->color_space = CLRSPC_GRAY;
|
||
else if (jp2->enumcs == 18)
|
||
p_image->color_space = CLRSPC_SYCC;
|
||
else
|
||
p_image->color_space = CLRSPC_UNKNOWN;
|
||
|
||
/* Apply the color space if needed */
|
||
if(jp2->color.jp2_cdef) {
|
||
jp2_apply_cdef(p_image, &(jp2->color));
|
||
}
|
||
|
||
if(jp2->color.jp2_pclr) {
|
||
/* Part 1, I.5.3.4: Either both or none : */
|
||
if( !jp2->color.jp2_pclr->cmap)
|
||
jp2_free_pclr(&(jp2->color));
|
||
else
|
||
jp2_apply_pclr(p_image, &(jp2->color));
|
||
}
|
||
|
||
if(jp2->color.icc_profile_buf) {
|
||
p_image->icc_profile_buf = jp2->color.icc_profile_buf;
|
||
p_image->icc_profile_len = jp2->color.icc_profile_len;
|
||
jp2->color.icc_profile_buf = NULL;
|
||
}
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
|
||
void jp2_write_jp2h(opj_jp2_t *jp2, opj_cio_t *cio) {
|
||
opj_jp2_box_t box;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_JP2H, 4); /* JP2H */
|
||
|
||
jp2_write_ihdr(jp2, cio);
|
||
|
||
if (jp2->bpc == 255) {
|
||
jp2_write_bpcc(jp2, cio);
|
||
}
|
||
jp2_write_colr(jp2, cio);
|
||
|
||
box.length = cio_tell(cio) - box.init_pos;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
}
|
||
|
||
/**
|
||
* Writes the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
|
||
*
|
||
* @param cio the stream to write data to.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_manager user event manager.
|
||
*
|
||
* @return true if writting was successful.
|
||
*/
|
||
opj_bool jp2_write_jp2h_v2( opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager )
|
||
{
|
||
opj_jp2_img_header_writer_handler_t l_writers [3];
|
||
opj_jp2_img_header_writer_handler_t * l_current_writer;
|
||
|
||
int i, l_nb_pass;
|
||
/* size of data for super box*/
|
||
int l_jp2h_size = 8;
|
||
opj_bool l_result = OPJ_TRUE;
|
||
|
||
/* to store the data of the super box */
|
||
unsigned char l_jp2h_data [8];
|
||
|
||
// preconditions
|
||
assert(cio != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
memset(l_writers,0,sizeof(l_writers));
|
||
|
||
if (jp2->bpc == 255) {
|
||
l_nb_pass = 3;
|
||
l_writers[0].handler = jp2_write_ihdr_v2;
|
||
l_writers[1].handler = jp2_write_bpcc_v2;
|
||
l_writers[2].handler = jp2_write_colr_v2;
|
||
}
|
||
else {
|
||
l_nb_pass = 2;
|
||
l_writers[0].handler = jp2_write_ihdr_v2;
|
||
l_writers[1].handler = jp2_write_colr_v2;
|
||
}
|
||
|
||
/* write box header */
|
||
/* write JP2H type */
|
||
opj_write_bytes(l_jp2h_data+4,JP2_JP2H,4);
|
||
|
||
l_current_writer = l_writers;
|
||
for (i=0;i<l_nb_pass;++i) {
|
||
l_current_writer->m_data = l_current_writer->handler(jp2,&(l_current_writer->m_size));
|
||
if (l_current_writer->m_data == 00) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to hold JP2 Header data\n");
|
||
l_result = OPJ_FALSE;
|
||
break;
|
||
}
|
||
|
||
l_jp2h_size += l_current_writer->m_size;
|
||
++l_current_writer;
|
||
}
|
||
|
||
if (! l_result) {
|
||
l_current_writer = l_writers;
|
||
for (i=0;i<l_nb_pass;++i) {
|
||
if (l_current_writer->m_data != 00) {
|
||
opj_free(l_current_writer->m_data );
|
||
}
|
||
++l_current_writer;
|
||
}
|
||
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* write super box size */
|
||
opj_write_bytes(l_jp2h_data,l_jp2h_size,4);
|
||
|
||
/* write super box data on stream */
|
||
if (opj_stream_write_data(cio,l_jp2h_data,8,p_manager) != 8) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writing JP2 Header box\n");
|
||
l_result = OPJ_FALSE;
|
||
}
|
||
|
||
if (l_result) {
|
||
l_current_writer = l_writers;
|
||
for (i=0;i<l_nb_pass;++i) {
|
||
if (opj_stream_write_data(cio,l_current_writer->m_data,l_current_writer->m_size,p_manager) != l_current_writer->m_size) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while writting JP2 Header box\n");
|
||
l_result = OPJ_FALSE;
|
||
break;
|
||
}
|
||
++l_current_writer;
|
||
}
|
||
}
|
||
|
||
l_current_writer = l_writers;
|
||
|
||
/* cleanup */
|
||
for (i=0;i<l_nb_pass;++i) {
|
||
if (l_current_writer->m_data != 00) {
|
||
opj_free(l_current_writer->m_data );
|
||
}
|
||
++l_current_writer;
|
||
}
|
||
|
||
return l_result;
|
||
}
|
||
|
||
static void jp2_write_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
|
||
unsigned int i;
|
||
opj_jp2_box_t box;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_FTYP, 4); /* FTYP */
|
||
|
||
cio_write(cio, jp2->brand, 4); /* BR */
|
||
cio_write(cio, jp2->minversion, 4); /* MinV */
|
||
|
||
for (i = 0; i < jp2->numcl; i++) {
|
||
cio_write(cio, jp2->cl[i], 4); /* CL */
|
||
}
|
||
|
||
box.length = cio_tell(cio) - box.init_pos;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
}
|
||
|
||
/**
|
||
* Writes a FTYP box - File type box
|
||
*
|
||
* @param cio the stream to write data to.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if writting was successful.
|
||
*/
|
||
opj_bool jp2_write_ftyp_v2( opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager )
|
||
{
|
||
unsigned int i;
|
||
unsigned int l_ftyp_size = 16 + 4 * jp2->numcl;
|
||
unsigned char * l_ftyp_data, * l_current_data_ptr;
|
||
opj_bool l_result;
|
||
|
||
// preconditions
|
||
assert(cio != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
l_ftyp_data = (unsigned char *) opj_malloc(l_ftyp_size);
|
||
|
||
if (l_ftyp_data == 00) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle ftyp data\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
memset(l_ftyp_data,0,l_ftyp_size);
|
||
|
||
l_current_data_ptr = l_ftyp_data;
|
||
|
||
opj_write_bytes(l_current_data_ptr, l_ftyp_size,4); /* box size */
|
||
l_current_data_ptr += 4;
|
||
|
||
opj_write_bytes(l_current_data_ptr, JP2_FTYP,4); /* FTYP */
|
||
l_current_data_ptr += 4;
|
||
|
||
opj_write_bytes(l_current_data_ptr, jp2->brand,4); /* BR */
|
||
l_current_data_ptr += 4;
|
||
|
||
opj_write_bytes(l_current_data_ptr, jp2->minversion,4); /* MinV */
|
||
l_current_data_ptr += 4;
|
||
|
||
for (i = 0; i < jp2->numcl; i++) {
|
||
opj_write_bytes(l_current_data_ptr, jp2->cl[i],4); /* CL */
|
||
}
|
||
|
||
l_result = (opj_stream_write_data(cio,l_ftyp_data,l_ftyp_size,p_manager) == l_ftyp_size);
|
||
if (! l_result)
|
||
{
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Error while writting ftyp data to stream\n");
|
||
}
|
||
|
||
opj_free(l_ftyp_data);
|
||
|
||
return l_result;
|
||
}
|
||
|
||
static opj_bool jp2_read_ftyp(opj_jp2_t *jp2, opj_cio_t *cio) {
|
||
int i;
|
||
opj_jp2_box_t box;
|
||
|
||
opj_common_ptr cinfo = jp2->cinfo;
|
||
|
||
jp2_read_boxhdr(cinfo, cio, &box);
|
||
|
||
if (JP2_FTYP != box.type) {
|
||
opj_event_msg(cinfo, EVT_ERROR, "Expected FTYP Marker\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
jp2->brand = cio_read(cio, 4); /* BR */
|
||
jp2->minversion = cio_read(cio, 4); /* MinV */
|
||
jp2->numcl = (box.length - 16) / 4;
|
||
jp2->cl = (unsigned int *) opj_malloc(jp2->numcl * sizeof(unsigned int));
|
||
|
||
for (i = 0; i < (int)jp2->numcl; i++) {
|
||
jp2->cl[i] = cio_read(cio, 4); /* CLi */
|
||
}
|
||
|
||
if (cio_tell(cio) - box.init_pos != box.length) {
|
||
opj_event_msg(cinfo, EVT_ERROR, "Error with FTYP Box\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
static int jp2_write_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
|
||
unsigned int j2k_codestream_offset, j2k_codestream_length;
|
||
opj_jp2_box_t box;
|
||
|
||
opj_j2k_t *j2k = jp2->j2k;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_JP2C, 4); /* JP2C */
|
||
|
||
/* J2K encoding */
|
||
j2k_codestream_offset = cio_tell(cio);
|
||
if(!j2k_encode(j2k, cio, image, cstr_info)) {
|
||
opj_event_msg(j2k->cinfo, EVT_ERROR, "Failed to encode image\n");
|
||
return 0;
|
||
}
|
||
j2k_codestream_length = cio_tell(cio) - j2k_codestream_offset;
|
||
|
||
jp2->j2k_codestream_offset = j2k_codestream_offset;
|
||
jp2->j2k_codestream_length = j2k_codestream_length;
|
||
|
||
box.length = 8 + jp2->j2k_codestream_length;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
|
||
return box.length;
|
||
}
|
||
|
||
/**
|
||
* Writes the Jpeg2000 codestream Header box - JP2C Header box.
|
||
*
|
||
* @param cio the stream to write data to.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_manager user event manager.
|
||
*
|
||
* @return true if writting was successful.
|
||
*/
|
||
opj_bool jp2_write_jp2c_v2( opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager )
|
||
{
|
||
unsigned int j2k_codestream_exit;
|
||
unsigned char l_data_header [8];
|
||
|
||
// preconditions
|
||
assert(jp2 != 00);
|
||
assert(cio != 00);
|
||
assert(p_manager != 00);
|
||
assert(opj_stream_has_seek(cio));
|
||
|
||
j2k_codestream_exit = opj_stream_tell(cio);
|
||
opj_write_bytes(l_data_header,j2k_codestream_exit - jp2->j2k_codestream_offset,4); /* size of codestream */
|
||
opj_write_bytes(l_data_header + 4,JP2_JP2C,4); /* JP2C */
|
||
|
||
if (! opj_stream_seek(cio,jp2->j2k_codestream_offset,p_manager)) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
if (opj_stream_write_data(cio,l_data_header,8,p_manager) != 8) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
if (! opj_stream_seek(cio,j2k_codestream_exit,p_manager)) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to seek in the stream.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
static opj_bool jp2_read_jp2c(opj_jp2_t *jp2, opj_cio_t *cio, unsigned int *j2k_codestream_length, unsigned int *j2k_codestream_offset) {
|
||
opj_jp2_box_t box;
|
||
|
||
opj_common_ptr cinfo = jp2->cinfo;
|
||
|
||
jp2_read_boxhdr(cinfo, cio, &box);
|
||
do {
|
||
if(JP2_JP2C != box.type) {
|
||
cio_skip(cio, box.length - 8);
|
||
jp2_read_boxhdr(cinfo, cio, &box);
|
||
}
|
||
} while(JP2_JP2C != box.type);
|
||
|
||
*j2k_codestream_offset = cio_tell(cio);
|
||
*j2k_codestream_length = box.length - 8;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
static void jp2_write_jp(opj_cio_t *cio) {
|
||
opj_jp2_box_t box;
|
||
|
||
box.init_pos = cio_tell(cio);
|
||
cio_skip(cio, 4);
|
||
cio_write(cio, JP2_JP, 4); /* JP2 signature */
|
||
cio_write(cio, 0x0d0a870a, 4);
|
||
|
||
box.length = cio_tell(cio) - box.init_pos;
|
||
cio_seek(cio, box.init_pos);
|
||
cio_write(cio, box.length, 4); /* L */
|
||
cio_seek(cio, box.init_pos + box.length);
|
||
}
|
||
|
||
/**
|
||
* Writes a jpeg2000 file signature box.
|
||
*
|
||
* @param cio the stream to write data to.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if writting was successful.
|
||
*/
|
||
opj_bool jp2_write_jp_v2( opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager )
|
||
{
|
||
/* 12 bytes will be read */
|
||
unsigned char l_signature_data [12];
|
||
|
||
// preconditions
|
||
assert(cio != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* write box length */
|
||
opj_write_bytes(l_signature_data,12,4);
|
||
/* writes box type */
|
||
opj_write_bytes(l_signature_data+4,JP2_JP,4);
|
||
/* writes magic number*/
|
||
opj_write_bytes(l_signature_data+8,0x0d0a870a,4);
|
||
|
||
if (opj_stream_write_data(cio,l_signature_data,12,p_manager) != 12) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
static opj_bool jp2_read_jp(opj_jp2_t *jp2, opj_cio_t *cio) {
|
||
opj_jp2_box_t box;
|
||
|
||
opj_common_ptr cinfo = jp2->cinfo;
|
||
|
||
jp2_read_boxhdr(cinfo, cio, &box);
|
||
if (JP2_JP != box.type) {
|
||
opj_event_msg(cinfo, EVT_ERROR, "Expected JP Marker\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
if (0x0d0a870a != cio_read(cio, 4)) {
|
||
opj_event_msg(cinfo, EVT_ERROR, "Error with JP Marker\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
if (cio_tell(cio) - box.init_pos != box.length) {
|
||
opj_event_msg(cinfo, EVT_ERROR, "Error with JP Box size\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
|
||
static opj_bool jp2_read_struct(opj_jp2_t *jp2, opj_cio_t *cio,
|
||
opj_jp2_color_t *color) {
|
||
if (!jp2_read_jp(jp2, cio))
|
||
return OPJ_FALSE;
|
||
if (!jp2_read_ftyp(jp2, cio))
|
||
return OPJ_FALSE;
|
||
if (!jp2_read_jp2h(jp2, cio, color))
|
||
return OPJ_FALSE;
|
||
if (!jp2_read_jp2c(jp2, cio, &jp2->j2k_codestream_length, &jp2->j2k_codestream_offset))
|
||
return OPJ_FALSE;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
|
||
static int write_fidx( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
|
||
{
|
||
int len, lenp;
|
||
|
||
lenp = cio_tell( cio);
|
||
cio_skip( cio, 4); /* L [at the end] */
|
||
cio_write( cio, JPIP_FIDX, 4); /* IPTR */
|
||
|
||
write_prxy( offset_jp2c, length_jp2c, offset_idx, length_idx, cio);
|
||
|
||
len = cio_tell( cio)-lenp;
|
||
cio_seek( cio, lenp);
|
||
cio_write( cio, len, 4); /* L */
|
||
cio_seek( cio, lenp+len);
|
||
|
||
return len;
|
||
}
|
||
|
||
static void write_prxy( int offset_jp2c, int length_jp2c, int offset_idx, int length_idx, opj_cio_t *cio)
|
||
{
|
||
int len, lenp;
|
||
|
||
lenp = cio_tell( cio);
|
||
cio_skip( cio, 4); /* L [at the end] */
|
||
cio_write( cio, JPIP_PRXY, 4); /* IPTR */
|
||
|
||
cio_write( cio, offset_jp2c, 8); /* OOFF */
|
||
cio_write( cio, length_jp2c, 4); /* OBH part 1 */
|
||
cio_write( cio, JP2_JP2C, 4); /* OBH part 2 */
|
||
|
||
cio_write( cio, 1,1); /* NI */
|
||
|
||
cio_write( cio, offset_idx, 8); /* IOFF */
|
||
cio_write( cio, length_idx, 4); /* IBH part 1 */
|
||
cio_write( cio, JPIP_CIDX, 4); /* IBH part 2 */
|
||
|
||
len = cio_tell( cio)-lenp;
|
||
cio_seek( cio, lenp);
|
||
cio_write( cio, len, 4); /* L */
|
||
cio_seek( cio, lenp+len);
|
||
}
|
||
|
||
static void write_iptr( int offset, int length, opj_cio_t *cio)
|
||
{
|
||
int len, lenp;
|
||
|
||
lenp = cio_tell( cio);
|
||
cio_skip( cio, 4); /* L [at the end] */
|
||
cio_write( cio, JPIP_IPTR, 4); /* IPTR */
|
||
|
||
cio_write( cio, offset, 8);
|
||
cio_write( cio, length, 8);
|
||
|
||
len = cio_tell( cio)-lenp;
|
||
cio_seek( cio, lenp);
|
||
cio_write( cio, len, 4); /* L */
|
||
cio_seek( cio, lenp+len);
|
||
}
|
||
|
||
|
||
/* ----------------------------------------------------------------------- */
|
||
/* JP2 decoder interface */
|
||
/* ----------------------------------------------------------------------- */
|
||
|
||
|
||
void opj_jp2_setup_decoder(opj_jp2_v2_t *jp2, opj_dparameters_t *parameters)
|
||
{
|
||
/* setup the J2K codec */
|
||
opj_j2k_setup_decoder(jp2->j2k, parameters);
|
||
|
||
/* further JP2 initializations go here */
|
||
jp2->color.jp2_has_colr = 0;
|
||
jp2->ignore_pclr_cmap_cdef = parameters->flags & OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
|
||
}
|
||
|
||
|
||
/* ----------------------------------------------------------------------- */
|
||
/* JP2 encoder interface */
|
||
/* ----------------------------------------------------------------------- */
|
||
|
||
opj_jp2_t* jp2_create_compress(opj_common_ptr cinfo) {
|
||
opj_jp2_t *jp2 = (opj_jp2_t*)opj_malloc(sizeof(opj_jp2_t));
|
||
if(jp2) {
|
||
jp2->cinfo = cinfo;
|
||
/* create the J2K codec */
|
||
jp2->j2k = j2k_create_compress(cinfo);
|
||
if(jp2->j2k == NULL) {
|
||
jp2_destroy_compress(jp2);
|
||
return NULL;
|
||
}
|
||
}
|
||
return jp2;
|
||
}
|
||
|
||
void jp2_destroy_compress(opj_jp2_t *jp2) {
|
||
if(jp2) {
|
||
/* destroy the J2K codec */
|
||
j2k_destroy_compress(jp2->j2k);
|
||
|
||
if(jp2->comps) {
|
||
opj_free(jp2->comps);
|
||
}
|
||
if(jp2->cl) {
|
||
opj_free(jp2->cl);
|
||
}
|
||
opj_free(jp2);
|
||
}
|
||
}
|
||
|
||
void jp2_setup_encoder( opj_jp2_v2_t *jp2,
|
||
opj_cparameters_t *parameters,
|
||
opj_image_t *image,
|
||
opj_event_mgr_t * p_manager) {
|
||
int i;
|
||
int depth_0, sign;
|
||
|
||
if(!jp2 || !parameters || !image)
|
||
return;
|
||
|
||
/* setup the J2K codec */
|
||
/* ------------------- */
|
||
|
||
/* Check if number of components respects standard */
|
||
if (image->numcomps < 1 || image->numcomps > 16384) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Invalid number of components specified while setting up JP2 encoder\n");
|
||
return;
|
||
}
|
||
|
||
j2k_setup_encoder_v2(jp2->j2k, parameters, image, p_manager );
|
||
|
||
/* setup the JP2 codec */
|
||
/* ------------------- */
|
||
|
||
/* Profile box */
|
||
|
||
jp2->brand = JP2_JP2; /* BR */
|
||
jp2->minversion = 0; /* MinV */
|
||
jp2->numcl = 1;
|
||
jp2->cl = (unsigned int*) opj_malloc(jp2->numcl * sizeof(unsigned int));
|
||
jp2->cl[0] = JP2_JP2; /* CL0 : JP2 */
|
||
|
||
/* Image Header box */
|
||
|
||
jp2->numcomps = image->numcomps; /* NC */
|
||
jp2->comps = (opj_jp2_comps_t*) opj_malloc(jp2->numcomps * sizeof(opj_jp2_comps_t));
|
||
jp2->h = image->y1 - image->y0; /* HEIGHT */
|
||
jp2->w = image->x1 - image->x0; /* WIDTH */
|
||
/* BPC */
|
||
depth_0 = image->comps[0].prec - 1;
|
||
sign = image->comps[0].sgnd;
|
||
jp2->bpc = depth_0 + (sign << 7);
|
||
for (i = 1; i < image->numcomps; i++) {
|
||
int depth = image->comps[i].prec - 1;
|
||
sign = image->comps[i].sgnd;
|
||
if (depth_0 != depth)
|
||
jp2->bpc = 255;
|
||
}
|
||
jp2->C = 7; /* C : Always 7 */
|
||
jp2->UnkC = 0; /* UnkC, colorspace specified in colr box */
|
||
jp2->IPR = 0; /* IPR, no intellectual property */
|
||
|
||
/* BitsPerComponent box */
|
||
for (i = 0; i < image->numcomps; i++) {
|
||
jp2->comps[i].bpcc = image->comps[i].prec - 1 + (image->comps[i].sgnd << 7);
|
||
}
|
||
|
||
/* Colour Specification box */
|
||
if ((image->numcomps == 1 || image->numcomps == 3) && (jp2->bpc != 255)) {
|
||
jp2->meth = 1; /* METH: Enumerated colourspace */
|
||
} else {
|
||
jp2->meth = 2; /* METH: Restricted ICC profile */
|
||
}
|
||
if (jp2->meth == 1) {
|
||
if (image->color_space == 1)
|
||
jp2->enumcs = 16; /* sRGB as defined by IEC 61966<36>2<EFBFBD>1 */
|
||
else if (image->color_space == 2)
|
||
jp2->enumcs = 17; /* greyscale */
|
||
else if (image->color_space == 3)
|
||
jp2->enumcs = 18; /* YUV */
|
||
} else {
|
||
jp2->enumcs = 0; /* PROFILE (??) */
|
||
}
|
||
jp2->precedence = 0; /* PRECEDENCE */
|
||
jp2->approx = 0; /* APPROX */
|
||
|
||
// jp2->jpip_on = parameters->jpip_on;
|
||
}
|
||
|
||
|
||
opj_bool opj_jp2_encode_v2( opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *stream,
|
||
opj_event_mgr_t * p_manager)
|
||
{
|
||
return j2k_encode_v2(jp2->j2k, stream, p_manager);
|
||
}
|
||
|
||
opj_bool opj_jp2_encode(opj_jp2_t *jp2, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) {
|
||
|
||
int pos_iptr, pos_cidx, pos_jp2c, len_jp2c, len_cidx, end_pos, pos_fidx, len_fidx;
|
||
pos_jp2c = pos_iptr = -1; /* remove a warning */
|
||
|
||
/* JP2 encoding */
|
||
|
||
/* JPEG 2000 Signature box */
|
||
jp2_write_jp(cio);
|
||
/* File Type box */
|
||
jp2_write_ftyp(jp2, cio);
|
||
/* JP2 Header box */
|
||
jp2_write_jp2h(jp2, cio);
|
||
|
||
if( jp2->jpip_on){
|
||
pos_iptr = cio_tell( cio);
|
||
cio_skip( cio, 24); /* IPTR further ! */
|
||
|
||
pos_jp2c = cio_tell( cio);
|
||
}
|
||
|
||
/* J2K encoding */
|
||
if(!(len_jp2c = jp2_write_jp2c( jp2, cio, image, cstr_info))){
|
||
opj_event_msg(jp2->cinfo, EVT_ERROR, "Failed to encode image\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
if( jp2->jpip_on){
|
||
pos_cidx = cio_tell( cio);
|
||
|
||
len_cidx = write_cidx( pos_jp2c+8, cio, image, *cstr_info, len_jp2c-8);
|
||
|
||
pos_fidx = cio_tell( cio);
|
||
len_fidx = write_fidx( pos_jp2c, len_jp2c, pos_cidx, len_cidx, cio);
|
||
|
||
end_pos = cio_tell( cio);
|
||
|
||
cio_seek( cio, pos_iptr);
|
||
write_iptr( pos_fidx, len_fidx, cio);
|
||
cio_seek( cio, end_pos);
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Ends the decompression procedures and possibiliy add data to be read after the
|
||
* codestream.
|
||
*/
|
||
opj_bool jp2_end_decompress(opj_jp2_v2_t *jp2, opj_stream_private_t *cio, opj_event_mgr_t * p_manager)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(cio != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* customization of the end encoding */
|
||
jp2_setup_end_header_reading(jp2);
|
||
|
||
/* write header */
|
||
if (! jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return j2k_end_decompress(jp2->j2k, cio, p_manager);
|
||
}
|
||
|
||
/**
|
||
* Ends the compression procedures and possibility add data to be read after the
|
||
* codestream.
|
||
*/
|
||
opj_bool jp2_end_compress( opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(cio != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* customization of the end encoding */
|
||
jp2_setup_end_header_writting(jp2);
|
||
|
||
if (! j2k_end_compress(jp2->j2k,cio,p_manager)) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* write header */
|
||
return jp2_exec(jp2,jp2->m_procedure_list,cio,p_manager);
|
||
}
|
||
|
||
|
||
/**
|
||
* Sets up the procedures to do on writing header after the codestream.
|
||
* Developers wanting to extend the library can add their own writing procedures.
|
||
*/
|
||
void jp2_setup_end_header_writting (opj_jp2_v2_t *jp2)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
|
||
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp2c_v2 );
|
||
/* DEVELOPER CORNER, add your custom procedures */
|
||
}
|
||
|
||
/**
|
||
* Sets up the procedures to do on reading header after the codestream.
|
||
* Developers wanting to extend the library can add their own writing procedures.
|
||
*/
|
||
void jp2_setup_end_header_reading (opj_jp2_v2_t *jp2)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_read_header_procedure );
|
||
/* DEVELOPER CORNER, add your custom procedures */
|
||
}
|
||
|
||
/**
|
||
* The default validation procedure without any extension.
|
||
*
|
||
* @param jp2 the jpeg2000 codec to validate.
|
||
* @param cio the input stream to validate.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the parameters are correct.
|
||
*/
|
||
opj_bool jp2_default_validation ( opj_jp2_v2_t * jp2,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager )
|
||
{
|
||
opj_bool l_is_valid = OPJ_TRUE;
|
||
unsigned int i;
|
||
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(cio != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* JPEG2000 codec validation */
|
||
/*TODO*/
|
||
|
||
/* STATE checking */
|
||
/* make sure the state is at 0 */
|
||
l_is_valid &= (jp2->jp2_state == JP2_STATE_NONE);
|
||
|
||
/* make sure not reading a jp2h ???? WEIRD */
|
||
l_is_valid &= (jp2->jp2_img_state == JP2_IMG_STATE_NONE);
|
||
|
||
/* POINTER validation */
|
||
/* make sure a j2k codec is present */
|
||
l_is_valid &= (jp2->j2k != 00);
|
||
|
||
/* make sure a procedure list is present */
|
||
l_is_valid &= (jp2->m_procedure_list != 00);
|
||
|
||
/* make sure a validation list is present */
|
||
l_is_valid &= (jp2->m_validation_list != 00);
|
||
|
||
/* PARAMETER VALIDATION */
|
||
/* number of components */
|
||
l_is_valid &= (jp2->numcl > 0);
|
||
/* width */
|
||
l_is_valid &= (jp2->h > 0);
|
||
/* height */
|
||
l_is_valid &= (jp2->w > 0);
|
||
/* precision */
|
||
for (i = 0; i < jp2->numcomps; ++i) {
|
||
l_is_valid &= (jp2->comps[i].bpcc > 0);
|
||
}
|
||
|
||
/* METH */
|
||
l_is_valid &= ((jp2->meth > 0) && (jp2->meth < 3));
|
||
|
||
/* stream validation */
|
||
/* back and forth is needed */
|
||
l_is_valid &= opj_stream_has_seek(cio);
|
||
|
||
return l_is_valid;
|
||
}
|
||
|
||
/**
|
||
* Reads a jpeg2000 file header structure.
|
||
*
|
||
* @param cio the stream to read data from.
|
||
* @param jp2 the jpeg2000 file header structure.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the box is valid.
|
||
*/
|
||
opj_bool jp2_read_header_procedure(
|
||
opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager)
|
||
{
|
||
opj_jp2_box_t box;
|
||
OPJ_UINT32 l_nb_bytes_read;
|
||
const opj_jp2_header_handler_t * l_current_handler;
|
||
OPJ_UINT32 l_last_data_size = BOX_SIZE;
|
||
OPJ_UINT32 l_current_data_size;
|
||
unsigned char * l_current_data = 00;
|
||
|
||
/* preconditions */
|
||
assert(cio != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
l_current_data = (unsigned char*)opj_malloc(l_last_data_size);
|
||
|
||
if (l_current_data == 00) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to handle jpeg2000 file header\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
memset(l_current_data, 0 , l_last_data_size);
|
||
|
||
while (jp2_read_boxhdr_v2(&box,&l_nb_bytes_read,cio,p_manager)) {
|
||
/* is it the codestream box ? */
|
||
if (box.type == JP2_JP2C) {
|
||
if (jp2->jp2_state & JP2_STATE_HEADER) {
|
||
jp2->jp2_state |= JP2_STATE_CODESTREAM;
|
||
opj_free(l_current_data);
|
||
return OPJ_TRUE;
|
||
}
|
||
else {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "bad placed jpeg codestream\n");
|
||
opj_free(l_current_data);
|
||
return OPJ_FALSE;
|
||
}
|
||
}
|
||
else if (box.length == 0) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
|
||
opj_free(l_current_data);
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
l_current_handler = jp2_find_handler(box.type);
|
||
l_current_data_size = box.length - l_nb_bytes_read;
|
||
|
||
if (l_current_handler != 00) {
|
||
if (l_current_data_size > l_last_data_size) {
|
||
l_current_data = (unsigned char*)opj_realloc(l_current_data,l_current_data_size);
|
||
if (!l_current_data){
|
||
opj_free(l_current_data);
|
||
return OPJ_FALSE;
|
||
}
|
||
l_last_data_size = l_current_data_size;
|
||
}
|
||
|
||
l_nb_bytes_read = opj_stream_read_data(cio,l_current_data,l_current_data_size,p_manager);
|
||
if (l_nb_bytes_read != l_current_data_size) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with reading JPEG2000 box, stream error\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
if (! l_current_handler->handler(jp2,l_current_data,l_current_data_size,p_manager)) {
|
||
opj_free(l_current_data);
|
||
return OPJ_FALSE;
|
||
}
|
||
}
|
||
else {
|
||
jp2->jp2_state |= JP2_STATE_UNKNOWN;
|
||
if (opj_stream_skip(cio,l_current_data_size,p_manager) != l_current_data_size) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Problem with skipping JPEG2000 box, stream error\n");
|
||
opj_free(l_current_data);
|
||
return OPJ_FALSE;
|
||
}
|
||
}
|
||
}
|
||
|
||
opj_free(l_current_data);
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Excutes the given procedures on the given codec.
|
||
*
|
||
* @param p_procedure_list the list of procedures to execute
|
||
* @param jp2 the jpeg2000 file codec to execute the procedures on.
|
||
* @param cio the stream to execute the procedures on.
|
||
* @param p_manager the user manager.
|
||
*
|
||
* @return true if all the procedures were successfully executed.
|
||
*/
|
||
opj_bool jp2_exec (
|
||
opj_jp2_v2_t * jp2,
|
||
opj_procedure_list_t * p_procedure_list,
|
||
opj_stream_private_t *cio,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
opj_bool (** l_procedure) (opj_jp2_v2_t * jp2, opj_stream_private_t *, opj_event_mgr_t *) = 00;
|
||
opj_bool l_result = OPJ_TRUE;
|
||
OPJ_UINT32 l_nb_proc, i;
|
||
|
||
/* preconditions */
|
||
assert(p_procedure_list != 00);
|
||
assert(jp2 != 00);
|
||
assert(cio != 00);
|
||
assert(p_manager != 00);
|
||
|
||
l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list);
|
||
l_procedure = (opj_bool (**) (opj_jp2_v2_t * jp2, 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) (jp2,cio,p_manager);
|
||
++l_procedure;
|
||
}
|
||
|
||
/* and clear the procedure list at the end. */
|
||
opj_procedure_list_clear(p_procedure_list);
|
||
return l_result;
|
||
}
|
||
|
||
/**
|
||
* Starts a compression scheme, i.e. validates the codec parameters, writes the header.
|
||
*
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param cio the stream object.
|
||
*
|
||
* @return true if the codec is valid.
|
||
*/
|
||
opj_bool jp2_start_compress(opj_jp2_v2_t *jp2,
|
||
struct opj_stream_private *cio,
|
||
opj_image_t * p_image,
|
||
struct opj_event_mgr * p_manager)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(cio != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* customization of the validation */
|
||
jp2_setup_encoding_validation (jp2);
|
||
|
||
/* validation of the parameters codec */
|
||
if (! jp2_exec(jp2,jp2->m_validation_list,cio,p_manager)) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* customization of the encoding */
|
||
jp2_setup_header_writting(jp2);
|
||
|
||
/* write header */
|
||
if (! jp2_exec (jp2,jp2->m_procedure_list,cio,p_manager)) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return j2k_start_compress(jp2->j2k,cio,p_image,p_manager);
|
||
}
|
||
|
||
/**
|
||
* Finds the execution function related to the given box id.
|
||
*
|
||
* @param p_id the id of the handler to fetch.
|
||
*
|
||
* @return the given handler or 00 if it could not be found.
|
||
*/
|
||
const opj_jp2_header_handler_t * jp2_find_handler (int p_id)
|
||
{
|
||
OPJ_UINT32 i, l_handler_size = sizeof(jp2_header) / sizeof(opj_jp2_header_handler_t);
|
||
|
||
for (i=0;i<l_handler_size;++i) {
|
||
if (jp2_header[i].id == p_id) {
|
||
return &jp2_header[i];
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* Finds the image execution function related to the given box id.
|
||
*
|
||
* @param p_id the id of the handler to fetch.
|
||
*
|
||
* @return the given handler or 00 if it could not be found.
|
||
*/
|
||
static const opj_jp2_header_handler_t * jp2_img_find_handler (
|
||
int p_id
|
||
)
|
||
{
|
||
OPJ_UINT32 i, l_handler_size = sizeof(jp2_img_header) / sizeof(opj_jp2_header_handler_t);
|
||
for (i=0;i<l_handler_size;++i)
|
||
{
|
||
if (jp2_img_header[i].id == p_id) {
|
||
return &jp2_img_header[i];
|
||
}
|
||
}
|
||
|
||
return NULL;
|
||
}
|
||
|
||
|
||
/**
|
||
* Reads a jpeg2000 file signature box.
|
||
*
|
||
* @param p_header_data the data contained in the signature box.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_header_size the size of the data contained in the signature box.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the file signature box is valid.
|
||
*/
|
||
opj_bool jp2_read_jp_v2(
|
||
opj_jp2_v2_t *jp2,
|
||
unsigned char * p_header_data,
|
||
unsigned int p_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
unsigned int l_magic_number;
|
||
|
||
/* preconditions */
|
||
assert(p_header_data != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
if (jp2->jp2_state != JP2_STATE_NONE) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "The signature box must be the first box in the file.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* assure length of data is correct (4 -> magic number) */
|
||
if (p_header_size != 4) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Error with JP signature Box size\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* rearrange data */
|
||
opj_read_bytes(p_header_data,&l_magic_number,4);
|
||
if (l_magic_number != 0x0d0a870a ) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Error with JP Signature : bad magic number\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
jp2->jp2_state |= JP2_STATE_SIGNATURE;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
|
||
/**
|
||
* Reads a a FTYP box - File type box
|
||
*
|
||
* @param p_header_data the data contained in the FTYP box.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_header_size the size of the data contained in the FTYP box.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the FTYP box is valid.
|
||
*/
|
||
opj_bool jp2_read_ftyp_v2(
|
||
opj_jp2_v2_t *jp2,
|
||
unsigned char * p_header_data,
|
||
unsigned int p_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
OPJ_UINT32 i, l_remaining_bytes;
|
||
|
||
/* preconditions */
|
||
assert(p_header_data != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
if (jp2->jp2_state != JP2_STATE_SIGNATURE) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "The ftyp box must be the second box in the file.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* assure length of data is correct */
|
||
if (p_header_size < 8) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
opj_read_bytes(p_header_data,&jp2->brand,4); /* BR */
|
||
p_header_data += 4;
|
||
|
||
opj_read_bytes(p_header_data,&jp2->minversion,4); /* MinV */
|
||
p_header_data += 4;
|
||
|
||
l_remaining_bytes = p_header_size - 8;
|
||
|
||
/* the number of remaining bytes should be a multiple of 4 */
|
||
if ((l_remaining_bytes & 0x3) != 0) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Error with FTYP signature Box size\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* div by 4 */
|
||
jp2->numcl = l_remaining_bytes >> 2;
|
||
if (jp2->numcl) {
|
||
jp2->cl = (unsigned int *) opj_malloc(jp2->numcl * sizeof(unsigned int));
|
||
if (jp2->cl == 00) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory with FTYP Box\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
memset(jp2->cl,0,jp2->numcl * sizeof(unsigned int));
|
||
}
|
||
|
||
for (i = 0; i < jp2->numcl; ++i)
|
||
{
|
||
opj_read_bytes(p_header_data,&jp2->cl[i],4); /* CLi */
|
||
p_header_data += 4;
|
||
}
|
||
|
||
jp2->jp2_state |= JP2_STATE_FILE_TYPE;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Skips the Jpeg2000 Codestream Header box - JP2C Header box.
|
||
*
|
||
* @param cio the stream to write data to.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_manager user event manager.
|
||
*
|
||
* @return true if writting was successful.
|
||
*/
|
||
opj_bool jp2_skip_jp2c( opj_jp2_v2_t *jp2,
|
||
struct opj_stream_private *stream,
|
||
struct opj_event_mgr * p_manager )
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(stream != 00);
|
||
assert(p_manager != 00);
|
||
|
||
jp2->j2k_codestream_offset = opj_stream_tell(stream);
|
||
|
||
if (opj_stream_skip(stream,8,p_manager) != 8) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Reads the Jpeg2000 file Header box - JP2 Header box (warning, this is a super box).
|
||
*
|
||
* @param p_header_data the data contained in the file header box.
|
||
* @param jp2 the jpeg2000 file codec.
|
||
* @param p_header_size the size of the data contained in the file header box.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the JP2 Header box was successfully reconized.
|
||
*/
|
||
static opj_bool opj_jp2_read_jp2h( opj_jp2_v2_t *jp2,
|
||
OPJ_BYTE *p_header_data,
|
||
OPJ_UINT32 p_header_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
OPJ_UINT32 l_box_size=0, l_current_data_size = 0;
|
||
opj_jp2_box_t box;
|
||
const opj_jp2_header_handler_t * l_current_handler;
|
||
|
||
/* preconditions */
|
||
assert(p_header_data != 00);
|
||
assert(jp2 != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* make sure the box is well placed */
|
||
if ((jp2->jp2_state & JP2_STATE_FILE_TYPE) != JP2_STATE_FILE_TYPE ) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "The box must be the first box in the file.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
jp2->jp2_img_state = JP2_IMG_STATE_NONE;
|
||
|
||
/* iterate while remaining data */
|
||
while (p_header_size > 0) {
|
||
|
||
if (! jp2_read_boxhdr_char(&box,p_header_data,&l_box_size,p_header_size, p_manager)) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
if (box.length > p_header_size) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Stream error while reading JP2 Header box: box length is inconsistent.\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
l_current_handler = jp2_img_find_handler(box.type);
|
||
l_current_data_size = box.length - l_box_size;
|
||
p_header_data += l_box_size;
|
||
|
||
if (l_current_handler != 00) {
|
||
if (! l_current_handler->handler(jp2,p_header_data,l_current_data_size,p_manager)) {
|
||
return OPJ_FALSE;
|
||
}
|
||
}
|
||
else {
|
||
jp2->jp2_img_state |= JP2_IMG_STATE_UNKNOWN;
|
||
}
|
||
|
||
p_header_data += l_current_data_size;
|
||
p_header_size -= box.length;
|
||
}
|
||
|
||
jp2->jp2_state |= JP2_STATE_HEADER;
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
/**
|
||
* Reads a box header. The box is the way data is packed inside a jpeg2000 file structure. Data is read from a character string
|
||
*
|
||
* @param p_data the character string to read data from.
|
||
* @param box the box structure to fill.
|
||
* @param p_number_bytes_read pointer to an int that will store the number of bytes read from the stream (shoul usually be 2).
|
||
* @param p_box_max_size the maximum number of bytes in the box.
|
||
*
|
||
* @return true if the box is reconized, false otherwise
|
||
*/
|
||
static opj_bool jp2_read_boxhdr_char(
|
||
opj_jp2_box_t *box,
|
||
OPJ_BYTE * p_data,
|
||
OPJ_UINT32 * p_number_bytes_read,
|
||
OPJ_UINT32 p_box_max_size,
|
||
opj_event_mgr_t * p_manager
|
||
)
|
||
{
|
||
OPJ_UINT32 l_value;
|
||
|
||
/* preconditions */
|
||
assert(p_data != 00);
|
||
assert(box != 00);
|
||
assert(p_number_bytes_read != 00);
|
||
assert(p_manager != 00);
|
||
|
||
if (p_box_max_size < 8) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of less than 8 bytes\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* process read data */
|
||
opj_read_bytes(p_data, &l_value, 4);
|
||
p_data += 4;
|
||
box->length = (OPJ_INT32)(l_value);
|
||
|
||
opj_read_bytes(p_data, &l_value, 4);
|
||
p_data += 4;
|
||
box->type = (OPJ_INT32)(l_value);
|
||
|
||
*p_number_bytes_read = 8;
|
||
|
||
/* do we have a "special very large box ?" */
|
||
/* read then the XLBox */
|
||
if (box->length == 1) {
|
||
unsigned int l_xl_part_size;
|
||
|
||
if (p_box_max_size < 16) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle XL box of less than 16 bytes\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
opj_read_bytes(p_data,&l_xl_part_size, 4);
|
||
p_data += 4;
|
||
*p_number_bytes_read += 4;
|
||
|
||
if (l_xl_part_size != 0) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box sizes higher than 2^32\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
opj_read_bytes(p_data, &l_value, 4);
|
||
*p_number_bytes_read += 4;
|
||
box->length = (OPJ_INT32)(l_value);
|
||
|
||
if (box->length == 0) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
}
|
||
else if (box->length == 0) {
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot handle box of undefined sizes\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
|
||
/**
|
||
* Reads a jpeg2000 file header structure.
|
||
*
|
||
* @param cio the stream to read data from.
|
||
* @param jp2 the jpeg2000 file header structure.
|
||
* @param p_manager the user event manager.
|
||
*
|
||
* @return true if the box is valid.
|
||
*/
|
||
opj_bool jp2_read_header( struct opj_stream_private *p_stream,
|
||
opj_jp2_v2_t *jp2,
|
||
opj_image_t** p_image,
|
||
struct opj_event_mgr * p_manager
|
||
)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
assert(p_stream != 00);
|
||
assert(p_manager != 00);
|
||
|
||
/* customization of the validation */
|
||
jp2_setup_decoding_validation (jp2);
|
||
|
||
/* customization of the encoding */
|
||
jp2_setup_header_reading(jp2);
|
||
|
||
/* validation of the parameters codec */
|
||
if (! jp2_exec(jp2,jp2->m_validation_list,p_stream,p_manager)) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* read header */
|
||
if (! jp2_exec (jp2,jp2->m_procedure_list,p_stream,p_manager)) {
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
return j2k_read_header( p_stream,
|
||
jp2->j2k,
|
||
p_image,
|
||
p_manager);
|
||
}
|
||
|
||
/**
|
||
* Sets up the validation ,i.e. adds the procedures to launch to make sure the codec parameters
|
||
* are valid. Developers wanting to extend the library can add their own validation procedures.
|
||
*/
|
||
void jp2_setup_encoding_validation (opj_jp2_v2_t *jp2)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
|
||
opj_procedure_list_add_procedure(jp2->m_validation_list, (opj_procedure)jp2_default_validation);
|
||
/* DEVELOPER CORNER, add your custom validation procedure */
|
||
}
|
||
|
||
/**
|
||
* 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 jp2_setup_decoding_validation (opj_jp2_v2_t *jp2)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
/* DEVELOPER CORNER, add your custom validation procedure */
|
||
}
|
||
|
||
/**
|
||
* Sets up the procedures to do on writting header.
|
||
* Developers wanting to extend the library can add their own writing procedures.
|
||
*/
|
||
void jp2_setup_header_writting (opj_jp2_v2_t *jp2)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
|
||
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp_v2 );
|
||
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_ftyp_v2 );
|
||
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_write_jp2h_v2 );
|
||
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_skip_jp2c );
|
||
|
||
/* DEVELOPER CORNER, insert your custom procedures */
|
||
|
||
}
|
||
|
||
/**
|
||
* Sets up the procedures to do on reading header.
|
||
* Developpers wanting to extend the library can add their own writting procedures.
|
||
*/
|
||
void jp2_setup_header_reading (opj_jp2_v2_t *jp2)
|
||
{
|
||
/* preconditions */
|
||
assert(jp2 != 00);
|
||
|
||
opj_procedure_list_add_procedure(jp2->m_procedure_list,(opj_procedure)jp2_read_header_procedure );
|
||
/* DEVELOPER CORNER, add your custom procedures */
|
||
}
|
||
|
||
|
||
/**
|
||
* Reads a tile header.
|
||
* @param p_j2k the jpeg2000 codec.
|
||
* @param p_stream the stream to write data to.
|
||
* @param p_manager the user event manager.
|
||
*/
|
||
opj_bool jp2_read_tile_header( opj_jp2_v2_t * p_jp2,
|
||
OPJ_UINT32 * p_tile_index,
|
||
OPJ_UINT32 * p_data_size,
|
||
OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0,
|
||
OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1,
|
||
OPJ_UINT32 * p_nb_comps,
|
||
opj_bool * p_go_on,
|
||
opj_stream_private_t *p_stream,
|
||
opj_event_mgr_t * p_manager )
|
||
{
|
||
return j2k_read_tile_header(p_jp2->j2k,
|
||
p_tile_index,
|
||
p_data_size,
|
||
p_tile_x0, p_tile_y0,
|
||
p_tile_x1, p_tile_y1,
|
||
p_nb_comps,
|
||
p_go_on,
|
||
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.
|
||
*/
|
||
opj_bool jp2_write_tile ( opj_jp2_v2_t *p_jp2,
|
||
OPJ_UINT32 p_tile_index,
|
||
OPJ_BYTE * p_data,
|
||
OPJ_UINT32 p_data_size,
|
||
struct opj_stream_private *p_stream,
|
||
struct opj_event_mgr * p_manager )
|
||
{
|
||
return j2k_write_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
|
||
}
|
||
|
||
/**
|
||
* Decode tile data.
|
||
* @param p_j2k the jpeg2000 codec.
|
||
* @param p_stream the stream to write data to.
|
||
* @param p_manager the user event manager.
|
||
*/
|
||
opj_bool jp2_decode_tile (
|
||
opj_jp2_v2_t * p_jp2,
|
||
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
|
||
)
|
||
{
|
||
return j2k_decode_tile (p_jp2->j2k,p_tile_index,p_data,p_data_size,p_stream,p_manager);
|
||
}
|
||
|
||
/**
|
||
* Destroys a jpeg2000 file decompressor.
|
||
*
|
||
* @param jp2 a jpeg2000 file decompressor.
|
||
*/
|
||
void jp2_destroy(opj_jp2_v2_t *jp2)
|
||
{
|
||
if (jp2) {
|
||
/* destroy the J2K codec */
|
||
j2k_destroy(jp2->j2k);
|
||
jp2->j2k = 00;
|
||
|
||
if (jp2->comps) {
|
||
opj_free(jp2->comps);
|
||
jp2->comps = 00;
|
||
}
|
||
|
||
if (jp2->cl) {
|
||
opj_free(jp2->cl);
|
||
jp2->cl = 00;
|
||
}
|
||
|
||
if (jp2->color.icc_profile_buf) {
|
||
opj_free(jp2->color.icc_profile_buf);
|
||
jp2->color.icc_profile_buf = 00;
|
||
}
|
||
|
||
if (jp2->color.jp2_cdef) {
|
||
if (jp2->color.jp2_cdef->info) {
|
||
opj_free(jp2->color.jp2_cdef->info);
|
||
jp2->color.jp2_cdef->info = NULL;
|
||
}
|
||
|
||
opj_free(jp2->color.jp2_cdef);
|
||
jp2->color.jp2_cdef = 00;
|
||
}
|
||
|
||
if (jp2->color.jp2_pclr) {
|
||
if (jp2->color.jp2_pclr->cmap) {
|
||
opj_free(jp2->color.jp2_pclr->cmap);
|
||
jp2->color.jp2_pclr->cmap = NULL;
|
||
}
|
||
if (jp2->color.jp2_pclr->channel_sign) {
|
||
opj_free(jp2->color.jp2_pclr->channel_sign);
|
||
jp2->color.jp2_pclr->channel_sign = NULL;
|
||
}
|
||
if (jp2->color.jp2_pclr->channel_size) {
|
||
opj_free(jp2->color.jp2_pclr->channel_size);
|
||
jp2->color.jp2_pclr->channel_size = NULL;
|
||
}
|
||
if (jp2->color.jp2_pclr->entries) {
|
||
opj_free(jp2->color.jp2_pclr->entries);
|
||
jp2->color.jp2_pclr->entries = NULL;
|
||
}
|
||
|
||
opj_free(jp2->color.jp2_pclr);
|
||
jp2->color.jp2_pclr = 00;
|
||
}
|
||
|
||
if (jp2->m_validation_list) {
|
||
opj_procedure_list_destroy(jp2->m_validation_list);
|
||
jp2->m_validation_list = 00;
|
||
}
|
||
|
||
if (jp2->m_procedure_list) {
|
||
opj_procedure_list_destroy(jp2->m_procedure_list);
|
||
jp2->m_procedure_list = 00;
|
||
}
|
||
|
||
opj_free(jp2);
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 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_jp2 the jpeg2000 codec.
|
||
* @param p_end_x the right position of the rectangle to decode (in image coordinates).
|
||
* @param p_start_y the up position of the rectangle to decode (in image coordinates).
|
||
* @param p_end_y the bottom position of the rectangle to decode (in image coordinates).
|
||
* @param p_manager the user event manager
|
||
*
|
||
* @return true if the area could be set.
|
||
*/
|
||
opj_bool jp2_set_decode_area( opj_jp2_v2_t *p_jp2,
|
||
opj_image_t* p_image,
|
||
OPJ_INT32 p_start_x, OPJ_INT32 p_start_y,
|
||
OPJ_INT32 p_end_x, OPJ_INT32 p_end_y,
|
||
struct opj_event_mgr * p_manager )
|
||
{
|
||
return j2k_set_decode_area(p_jp2->j2k, p_image, p_start_x, p_start_y, p_end_x, p_end_y, p_manager);
|
||
}
|
||
|
||
/**
|
||
* Get the decoded tile.
|
||
*
|
||
* @param jp2 the jpeg2000 codec.
|
||
* @param p_stream input_stream
|
||
* @param p_image output image. .
|
||
* @param p_manager the user event manager
|
||
* @param tile_index index of the tile we want decode
|
||
*
|
||
* @return true if succeed.
|
||
*/
|
||
opj_bool jp2_get_tile( opj_jp2_v2_t *jp2,
|
||
opj_stream_private_t *p_stream,
|
||
opj_image_t* p_image,
|
||
struct opj_event_mgr * p_manager,
|
||
OPJ_UINT32 tile_index )
|
||
{
|
||
if (!p_image)
|
||
return OPJ_FALSE;
|
||
|
||
opj_event_msg_v2(p_manager, EVT_WARNING, "JP2 box which are after the codestream will not be read by this function.\n");
|
||
|
||
if (! j2k_get_tile(jp2->j2k, p_stream, p_image, p_manager, tile_index) ){
|
||
opj_event_msg_v2(p_manager, EVT_ERROR, "Failed to decode the codestream in the JP2 file\n");
|
||
return OPJ_FALSE;
|
||
}
|
||
|
||
/* Set Image Color Space */
|
||
if (jp2->enumcs == 16)
|
||
p_image->color_space = CLRSPC_SRGB;
|
||
else if (jp2->enumcs == 17)
|
||
p_image->color_space = CLRSPC_GRAY;
|
||
else if (jp2->enumcs == 18)
|
||
p_image->color_space = CLRSPC_SYCC;
|
||
else
|
||
p_image->color_space = CLRSPC_UNKNOWN;
|
||
|
||
/* Apply the color space if needed */
|
||
if(jp2->color.jp2_cdef) {
|
||
jp2_apply_cdef(p_image, &(jp2->color));
|
||
}
|
||
|
||
if(jp2->color.jp2_pclr) {
|
||
/* Part 1, I.5.3.4: Either both or none : */
|
||
if( !jp2->color.jp2_pclr->cmap)
|
||
jp2_free_pclr(&(jp2->color));
|
||
else
|
||
jp2_apply_pclr(p_image, &(jp2->color));
|
||
}
|
||
|
||
if(jp2->color.icc_profile_buf) {
|
||
p_image->icc_profile_buf = jp2->color.icc_profile_buf;
|
||
p_image->icc_profile_len = jp2->color.icc_profile_len;
|
||
jp2->color.icc_profile_buf = NULL;
|
||
}
|
||
|
||
return OPJ_TRUE;
|
||
}
|
||
|
||
|
||
|
||
/* ----------------------------------------------------------------------- */
|
||
/* JP2 encoder interface */
|
||
/* ----------------------------------------------------------------------- */
|
||
|
||
opj_jp2_v2_t* jp2_create(opj_bool p_is_decoder)
|
||
{
|
||
opj_jp2_v2_t *jp2 = (opj_jp2_v2_t*)opj_malloc(sizeof(opj_jp2_v2_t));
|
||
if (jp2) {
|
||
memset(jp2,0,sizeof(opj_jp2_v2_t));
|
||
|
||
/* create the J2K codec */
|
||
if (! p_is_decoder) {
|
||
jp2->j2k = j2k_create_compress_v2();
|
||
}
|
||
else {
|
||
jp2->j2k = opj_j2k_create_decompress();
|
||
}
|
||
|
||
if (jp2->j2k == 00) {
|
||
jp2_destroy(jp2);
|
||
return 00;
|
||
}
|
||
|
||
/* Color structure */
|
||
jp2->color.icc_profile_buf = NULL;
|
||
jp2->color.icc_profile_len = 0;
|
||
jp2->color.jp2_cdef = NULL;
|
||
jp2->color.jp2_pclr = NULL;
|
||
jp2->color.jp2_has_colr = 0;
|
||
|
||
/* validation list creation */
|
||
jp2->m_validation_list = opj_procedure_list_create();
|
||
if (! jp2->m_validation_list) {
|
||
jp2_destroy(jp2);
|
||
return 00;
|
||
}
|
||
|
||
/* execution list creation */
|
||
jp2->m_procedure_list = opj_procedure_list_create();
|
||
if (! jp2->m_procedure_list) {
|
||
jp2_destroy(jp2);
|
||
return 00;
|
||
}
|
||
}
|
||
|
||
return jp2;
|
||
}
|
||
|
||
void jp2_dump(opj_jp2_v2_t* p_jp2, OPJ_INT32 flag, FILE* out_stream)
|
||
{
|
||
/* preconditions */
|
||
assert(p_jp2 != 00);
|
||
|
||
j2k_dump(p_jp2->j2k,
|
||
flag,
|
||
out_stream);
|
||
}
|
||
|
||
opj_codestream_index_t* jp2_get_cstr_index(opj_jp2_v2_t* p_jp2)
|
||
{
|
||
return j2k_get_cstr_index(p_jp2->j2k);
|
||
}
|
||
|
||
opj_codestream_info_v2_t* jp2_get_cstr_info(opj_jp2_v2_t* p_jp2)
|
||
{
|
||
return j2k_get_cstr_info(p_jp2->j2k);
|
||
}
|
||
|
||
opj_bool jp2_set_decoded_resolution_factor(opj_jp2_v2_t *p_jp2, OPJ_UINT32 res_factor, opj_event_mgr_t * p_manager)
|
||
{
|
||
return j2k_set_decoded_resolution_factor(p_jp2->j2k, res_factor, p_manager);
|
||
}
|
||
|