/* * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium * Copyright (c) 2002-2007, Professor Benoit Macq * Copyright (c) 2001-2003, David Janssens * Copyright (c) 2002-2003, Yannick Verschueren * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe * Copyright (c) 2005, Herve Drolon, FreeImage Team * Copyright (c) 2006-2007, Parvatha Elangovan * Copyright (c) 2010-2011, Kaori Hagihara * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "opj_includes.h" /** @defgroup J2K J2K - JPEG-2000 codestream reader/writer */ /*@{*/ /** @name Local static functions */ /*@{*/ /** * Sets up the procedures to do on reading header. Developpers wanting to extend the library can add their own reading procedures. */ void j2k_setup_header_reading (opj_j2k_v2_t *p_j2k); /** * The read header procedure. */ opj_bool j2k_read_header_procedure( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager); /** * The default decoding validation procedure without any extension. * * @param p_j2k the jpeg2000 codec to validate. * @param p_stream the input stream to validate. * @param p_manager the user event manager. * * @return true if the parameters are correct. */ opj_bool j2k_decoding_validation ( opj_j2k_v2_t * p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ); /** * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters * are valid. Developpers wanting to extend the library can add their own validation procedures. */ static void j2k_setup_decoding_validation (opj_j2k_v2_t *p_j2k); /** * Builds the tcd decoder to use to decode tile. */ opj_bool j2k_build_decoder ( opj_j2k_v2_t * p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ); /** * Excutes the given procedures on the given codec. * * @param p_procedure_list the list of procedures to execute * @param p_j2k the jpeg2000 codec to execute the procedures on. * @param p_stream the stream to execute the procedures on. * @param p_manager the user manager. * * @return true if all the procedures were successfully executed. */ static opj_bool j2k_exec ( opj_j2k_v2_t * p_j2k, opj_procedure_list_t * p_procedure_list, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ); /** * Copies the decoding tile parameters onto all the tile parameters. * Creates also the tile decoder. */ opj_bool j2k_copy_default_tcp_and_create_tcd ( opj_j2k_v2_t * p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ); /** * Reads the lookup table containing all the marker, status and action, and returns the handler associated * with the marker value. * @param p_id Marker value to look up * * @return the handler associated with the id. */ static const struct opj_dec_memory_marker_handler * j2k_get_marker_handler (OPJ_UINT32 p_id); /** * Destroys a tile coding parameter structure. * * @param p_tcp the tile coding parameter to destroy. */ static void j2k_tcp_destroy (opj_tcp_v2_t *p_tcp); /** * Destroys a codestream index structure. * * @param p_cstr_ind the codestream index parameter to destroy. */ static void j2k_destroy_cstr_index (opj_codestream_index_t* p_cstr_ind); /** * Destroys a coding parameter structure. * * @param p_cp the coding parameter to destroy. */ static void j2k_cp_destroy (opj_cp_v2_t *p_cp); /** * Reads a SPCod or SPCoc element, i.e. the coding style of a given component of a tile. * @param p_header_data the data contained in the COM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the COM marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_SPCod_SPCoc( opj_j2k_v2_t *p_j2k, OPJ_UINT32 compno, OPJ_BYTE * p_header_data, OPJ_UINT32 * p_header_size, struct opj_event_mgr * p_manager ); /** * Reads a SQcd or SQcc element, i.e. the quantization values of a band in the QCD or QCC. * * @param p_tile_no the tile to output. * @param p_comp_no the component number to output. * @param p_data the data buffer. * @param p_header_size pointer to the size of the data buffer, it is changed by the function. * @param p_j2k J2K codec. * @param p_manager the user event manager. * */ static opj_bool j2k_read_SQcd_SQcc( opj_j2k_v2_t *p_j2k, OPJ_UINT32 compno, OPJ_BYTE * p_header_data, OPJ_UINT32 * p_header_size, struct opj_event_mgr * p_manager ); /** * Copies the tile component parameters of all the component from the first tile component. * * @param p_j2k the J2k codec. */ static void j2k_copy_tile_component_parameters( opj_j2k_v2_t *p_j2k ); /** * Copies the tile quantization parameters of all the component from the first tile component. * * @param p_j2k the J2k codec. */ static void j2k_copy_tile_quantization_parameters( opj_j2k_v2_t *p_j2k ); /** * Reads the tiles. */ opj_bool j2k_decode_tiles ( opj_j2k_v2_t *p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager); static opj_bool j2k_update_image_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data); /* * ----------------------------------------------------------------------- * ----------------------------------------------------------------------- * ----------------------------------------------------------------------- */ /** Write the SOC marker (Start Of Codestream) @param j2k J2K handle */ static void j2k_write_soc(opj_j2k_t *j2k); /** Read the SOC marker (Start of Codestream) @param j2k J2K handle */ static void j2k_read_soc(opj_j2k_t *j2k); /** * Reads a SOC marker (Start of Codestream) * @param p_header_data the data contained in the SOC box. * @param jp2 the jpeg2000 file codec. * @param p_header_size the size of the data contained in the SOC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_soc_v2( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager ); /** Write the SIZ marker (image and tile size) @param j2k J2K handle */ static void j2k_write_siz(opj_j2k_t *j2k); /** Read the SIZ marker (image and tile size) @param j2k J2K handle */ static void j2k_read_siz(opj_j2k_t *j2k); /** * Reads a SIZ marker (image and tile size) * @param p_header_data the data contained in the SIZ box. * @param jp2 the jpeg2000 file codec. * @param p_header_size the size of the data contained in the SIZ marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_siz_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Write the COM marker (comment) @param j2k J2K handle */ static void j2k_write_com(opj_j2k_t *j2k); /** Read the COM marker (comment) @param j2k J2K handle */ static void j2k_read_com(opj_j2k_t *j2k); /** * Reads a COM marker (comments) * @param p_header_data the data contained in the COM box. * @param jp2 the jpeg2000 file codec. * @param p_header_size the size of the data contained in the COM marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_com_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Write the value concerning the specified component in the marker COD and COC @param j2k J2K handle @param compno Number of the component concerned by the information written */ static void j2k_write_cox(opj_j2k_t *j2k, int compno); /** Read the value concerning the specified component in the marker COD and COC @param j2k J2K handle @param compno Number of the component concerned by the information read */ static void j2k_read_cox(opj_j2k_t *j2k, int compno); /** Write the COD marker (coding style default) @param j2k J2K handle */ static void j2k_write_cod(opj_j2k_t *j2k); /** Read the COD marker (coding style default) @param j2k J2K handle */ static void j2k_read_cod(opj_j2k_t *j2k); /** * Reads a COD marker (Coding Styke defaults) * @param p_header_data the data contained in the COD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the COD marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_cod_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Write the COC marker (coding style component) @param j2k J2K handle @param compno Number of the component concerned by the information written */ static void j2k_write_coc(opj_j2k_t *j2k, int compno); /** Read the COC marker (coding style component) @param j2k J2K handle */ static void j2k_read_coc(opj_j2k_t *j2k); /** * Reads a COC marker (Coding Style Component) * @param p_header_data the data contained in the COC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the COC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_coc_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Write the value concerning the specified component in the marker QCD and QCC @param j2k J2K handle @param compno Number of the component concerned by the information written */ static void j2k_write_qcx(opj_j2k_t *j2k, int compno); /** Read the value concerning the specified component in the marker QCD and QCC @param j2k J2K handle @param compno Number of the component concern by the information read @param len Length of the information in the QCX part of the marker QCD/QCC */ static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len); /** Write the QCD marker (quantization default) @param j2k J2K handle */ static void j2k_write_qcd(opj_j2k_t *j2k); /** Read the QCD marker (quantization default) @param j2k J2K handle */ static void j2k_read_qcd(opj_j2k_t *j2k); /** * Reads a QCD marker (Quantization defaults) * @param p_header_data the data contained in the QCD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the QCD marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_qcd_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Write the QCC marker (quantization component) @param j2k J2K handle @param compno Number of the component concerned by the information written */ static void j2k_write_qcc(opj_j2k_t *j2k, int compno); /** Read the QCC marker (quantization component) @param j2k J2K handle */ static void j2k_read_qcc(opj_j2k_t *j2k); /** * Reads a QCC marker (Quantization component) * @param p_header_data the data contained in the QCC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the QCC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_qcc_v2( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager); /** Write the POC marker (progression order change) @param j2k J2K handle */ static void j2k_write_poc(opj_j2k_t *j2k); /** Read the POC marker (progression order change) @param j2k J2K handle */ static void j2k_read_poc(opj_j2k_t *j2k); /** * Reads a POC marker (Progression Order Change) * * @param p_header_data the data contained in the POC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the POC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_poc_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Read the CRG marker (component registration) @param j2k J2K handle */ static void j2k_read_crg(opj_j2k_t *j2k); /** * Reads a CRG marker (Component registration) * * @param p_header_data the data contained in the TLM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the TLM marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_crg_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Read the TLM marker (tile-part lengths) @param j2k J2K handle */ static void j2k_read_tlm(opj_j2k_t *j2k); /** * Reads a TLM marker (Tile Length Marker) * * @param p_header_data the data contained in the TLM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the TLM marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_tlm_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Read the PLM marker (packet length, main header) @param j2k J2K handle */ static void j2k_read_plm(opj_j2k_t *j2k); /** * Reads a PLM marker (Packet length, main header marker) * * @param p_header_data the data contained in the TLM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the TLM marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_plm_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Read the PLT marker (packet length, tile-part header) @param j2k J2K handle */ static void j2k_read_plt(opj_j2k_t *j2k); /** * Reads a PLT marker (Packet length, tile-part header) * * @param p_header_data the data contained in the PLT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the PLT marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_plt_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Read the PPM marker (packet packet headers, main header) @param j2k J2K handle */ static void j2k_read_ppm(opj_j2k_t *j2k); /** * Reads a PPM marker (Packed packet headers, main header) * * @param p_header_data the data contained in the POC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the POC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_ppm_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); static opj_bool j2k_read_ppm_v3 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Read the PPT marker (packet packet headers, tile-part header) @param j2k J2K handle */ static void j2k_read_ppt(opj_j2k_t *j2k); /** * Reads a PPT marker (Packed packet headers, tile-part header) * * @param p_header_data the data contained in the PPT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the PPT marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_ppt_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Write the TLM marker (Mainheader) @param j2k J2K handle */ static void j2k_write_tlm(opj_j2k_t *j2k); /** Write the SOT marker (start of tile-part) @param j2k J2K handle */ static void j2k_write_sot(opj_j2k_t *j2k); /** Read the SOT marker (start of tile-part) @param j2k J2K handle */ static void j2k_read_sot(opj_j2k_t *j2k); /** * Reads a PPT marker (Packed packet headers, tile-part header) * * @param p_header_data the data contained in the PPT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the PPT marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_sot_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** Write the SOD marker (start of data) @param j2k J2K handle @param tile_coder Pointer to a TCD handle */ static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder); /** Read the SOD marker (start of data) @param j2k J2K handle */ static void j2k_read_sod(opj_j2k_t *j2k); /** * Reads a SOD marker (Start Of Data) * * @param p_header_data the data contained in the SOD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the SOD marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_sod_v2 ( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager ); /** Write the RGN marker (region-of-interest) @param j2k J2K handle @param compno Number of the component concerned by the information written @param tileno Number of the tile concerned by the information written */ static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno); /** Read the RGN marker (region-of-interest) @param j2k J2K handle */ static void j2k_read_rgn(opj_j2k_t *j2k); /** * Reads a RGN marker (Region Of Interest) * * @param p_header_data the data contained in the POC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the POC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_rgn_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) ; /** Write the EOC marker (end of codestream) @param j2k J2K handle */ static void j2k_write_eoc(opj_j2k_t *j2k); /** Read the EOC marker (end of codestream) @param j2k J2K handle */ static void j2k_read_eoc(opj_j2k_t *j2k); /** * Reads a EOC marker (End Of Codestream) * * @param p_header_data the data contained in the SOD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the SOD marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_eoc_v2 ( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager ) ; /** Read an unknown marker @param j2k J2K handle */ static void j2k_read_unk(opj_j2k_t *j2k); /** Add main header marker information @param cstr_info Codestream information structure @param type marker type @param pos byte offset of marker segment @param len length of marker segment */ static void j2k_add_mhmarker(opj_codestream_info_t *cstr_info, unsigned short int type, int pos, int len); static void j2k_add_mhmarker_v2(opj_codestream_index_t *cstr_index, OPJ_UINT32 type, OPJ_UINT32 pos, OPJ_UINT32 len) ; /** Add tile header marker information @param tileno tile index number @param cstr_info Codestream information structure @param type marker type @param pos byte offset of marker segment @param len length of marker segment */ static void j2k_add_tlmarker( int tileno, opj_codestream_info_t *cstr_info, unsigned short int type, int pos, int len); /** * Reads an unknown marker * * @param p_stream the stream object to read from. * @param p_j2k the jpeg2000 codec. * @param p_manager the user event manager. * * @return true if the marker could be deduced. */ static opj_bool j2k_read_unk_v2 ( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, OPJ_UINT32 *output_marker, struct opj_event_mgr * p_manager ); /** * Reads a MCT marker (Multiple Component Transform) * * @param p_header_data the data contained in the MCT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the MCT marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_mct ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** * Reads a MCC marker (Multiple Component Collection) * * @param p_header_data the data contained in the MCC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the MCC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_mcc ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); /** * Reads a MCO marker (Multiple Component Transform Ordering) * * @param p_header_data the data contained in the MCO box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the MCO marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_mco ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); static opj_bool j2k_add_mct(opj_tcp_v2_t * p_tcp, opj_image_t * p_image, OPJ_UINT32 p_index); static void j2k_read_int16_to_float (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_read_int32_to_float (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_read_float32_to_float (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_read_float64_to_float (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_read_int16_to_int32 (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_read_int32_to_int32 (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_read_float32_to_int32 (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_read_float64_to_int32 (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_write_float_to_int16 (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_write_float_to_int32 (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_write_float_to_float (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); static void j2k_write_float_to_float64 (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); /** * Reads a CBD marker (Component bit depth definition) * @param p_header_data the data contained in the CBD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the CBD marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_cbd ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager); /** * Copy the image header from the jpeg2000 codec into an external image_header * * @param p_j2k the jpeg2000 codec. * @param p_image_header the external empty image header * * @return true if the image header is correctly copy. */ static opj_bool j2k_copy_img_header(opj_j2k_v2_t* p_j2k, opj_image_t** p_image); static void j2k_dump_MH_info(opj_j2k_v2_t* p_j2k, FILE* out_stream); static void j2k_dump_MH_index(opj_j2k_v2_t* p_j2k, FILE* out_stream); static opj_codestream_index_t* j2k_create_cstr_index(void); /*@}*/ /*@}*/ /* ----------------------------------------------------------------------- */ typedef struct j2k_prog_order{ OPJ_PROG_ORDER enum_prog; char str_prog[5]; }j2k_prog_order_t; j2k_prog_order_t j2k_prog_order_list[] = { {CPRL, "CPRL"}, {LRCP, "LRCP"}, {PCRL, "PCRL"}, {RLCP, "RLCP"}, {RPCL, "RPCL"}, {(OPJ_PROG_ORDER)-1, ""} }; /** * FIXME DOC */ const OPJ_UINT32 MCT_ELEMENT_SIZE [] = { 2, 4, 4, 8 }; typedef void (* j2k_mct_function) (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem); const j2k_mct_function j2k_mct_read_functions_to_float [] = { j2k_read_int16_to_float, j2k_read_int32_to_float, j2k_read_float32_to_float, j2k_read_float64_to_float }; const j2k_mct_function j2k_mct_read_functions_to_int32 [] = { j2k_read_int16_to_int32, j2k_read_int32_to_int32, j2k_read_float32_to_int32, j2k_read_float64_to_int32 }; const j2k_mct_function j2k_mct_write_functions_from_float [] = { j2k_write_float_to_int16, j2k_write_float_to_int32, j2k_write_float_to_float, j2k_write_float_to_float64 }; typedef struct opj_dec_memory_marker_handler { /** marker value */ OPJ_UINT32 id; /** value of the state when the marker can appear */ OPJ_UINT32 states; /** action linked to the marker */ opj_bool (*handler) ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ); } opj_dec_memory_marker_handler_t; const opj_dec_memory_marker_handler_t j2k_memory_marker_handler_tab [] = { #ifdef TODO_MS {J2K_MS_SOT, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPHSOT, j2k_read_sot}, {J2K_MS_COD, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_cod}, {J2K_MS_COC, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_coc}, {J2K_MS_RGN, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_rgn}, {J2K_MS_QCD, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_qcd}, {J2K_MS_QCC, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_qcc}, {J2K_MS_POC, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_poc}, {J2K_MS_SIZ, J2K_DEC_STATE_MHSIZ , j2k_read_siz}, {J2K_MS_TLM, J2K_DEC_STATE_MH, j2k_read_tlm}, {J2K_MS_PLM, J2K_DEC_STATE_MH, j2k_read_plm}, {J2K_MS_PLT, J2K_DEC_STATE_TPH, j2k_read_plt}, {J2K_MS_PPM, J2K_DEC_STATE_MH, j2k_read_ppm}, {J2K_MS_PPT, J2K_DEC_STATE_TPH, j2k_read_ppt}, {J2K_MS_SOP, 0, 0}, {J2K_MS_CRG, J2K_DEC_STATE_MH, j2k_read_crg}, {J2K_MS_COM, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_com}, {J2K_MS_MCT, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_mct}, {J2K_MS_CBD, J2K_DEC_STATE_MH , j2k_read_cbd}, {J2K_MS_MCC, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_mcc}, {J2K_MS_MCO, J2K_DEC_STATE_MH | J2K_DEC_STATE_TPH, j2k_read_mco}, #endif {J2K_MS_SOT, J2K_STATE_MH | J2K_STATE_TPHSOT, j2k_read_sot_v2}, {J2K_MS_COD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_cod_v2}, {J2K_MS_COC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_coc_v2}, {J2K_MS_RGN, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_rgn_v2}, {J2K_MS_QCD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcd_v2}, {J2K_MS_QCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcc_v2}, {J2K_MS_POC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_poc_v2}, {J2K_MS_SIZ, J2K_STATE_MHSIZ , j2k_read_siz_v2}, {J2K_MS_TLM, J2K_STATE_MH, j2k_read_tlm_v2}, {J2K_MS_PLM, J2K_STATE_MH, j2k_read_plm_v2}, {J2K_MS_PLT, J2K_STATE_TPH, j2k_read_plt_v2}, {J2K_MS_PPM, J2K_STATE_MH, j2k_read_ppm_v3}, {J2K_MS_PPT, J2K_STATE_TPH, j2k_read_ppt_v2}, {J2K_MS_SOP, 0, 0}, {J2K_MS_CRG, J2K_STATE_MH, j2k_read_crg_v2}, {J2K_MS_COM, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_com_v2}, {J2K_MS_MCT, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mct}, {J2K_MS_CBD, J2K_STATE_MH , j2k_read_cbd}, {J2K_MS_MCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mcc}, {J2K_MS_MCO, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_mco}, #ifdef USE_JPWL #ifdef TODO_MS /* FIXME */ {J2K_MS_EPC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_epc}, {J2K_MS_EPB, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_epb}, {J2K_MS_ESD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_esd}, {J2K_MS_RED, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_red}, #endif #endif /* USE_JPWL */ #ifdef USE_JPSEC {J2K_MS_SEC, J2K_DEC_STATE_MH, j2k_read_sec}, {J2K_MS_INSEC, 0, j2k_read_insec} #endif /* USE_JPSEC */ {J2K_MS_UNK, J2K_STATE_MH | J2K_STATE_TPH, 0}//j2k_read_unk_v2} }; void j2k_read_int16_to_float (const void * p_src_data, void * p_dest_data, OPJ_UINT32 p_nb_elem) { OPJ_BYTE * l_src_data = (OPJ_BYTE *) p_src_data; OPJ_FLOAT32 * l_dest_data = (OPJ_FLOAT32 *) p_dest_data; OPJ_UINT32 i; OPJ_UINT32 l_temp; for (i=0;ienum_prog != -1; po++ ){ if(po->enum_prog == prg_order){ return po->str_prog; } } return po->str_prog; } /* ----------------------------------------------------------------------- */ static int j2k_get_num_tp(opj_cp_t *cp,int pino,int tileno){ char *prog; int i; int tpnum=1,tpend=0; opj_tcp_t *tcp = &cp->tcps[tileno]; prog = j2k_convert_progression_order(tcp->prg); if(cp->tp_on == 1){ for(i=0;i<4;i++){ if(tpend!=1){ if( cp->tp_flag == prog[i] ){ tpend=1;cp->tp_pos=i; } switch(prog[i]){ case 'C': tpnum= tpnum * tcp->pocs[pino].compE; break; case 'R': tpnum= tpnum * tcp->pocs[pino].resE; break; case 'P': tpnum= tpnum * tcp->pocs[pino].prcE; break; case 'L': tpnum= tpnum * tcp->pocs[pino].layE; break; } } } }else{ tpnum=1; } return tpnum; } /** mem allocation for TLM marker*/ int j2k_calculate_tp(opj_cp_t *cp,int img_numcomp,opj_image_t *image,opj_j2k_t *j2k ){ int pino,tileno,totnum_tp=0; OPJ_ARG_NOT_USED(img_numcomp); j2k->cur_totnum_tp = (int *) opj_malloc(cp->tw * cp->th * sizeof(int)); for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { int cur_totnum_tp = 0; opj_tcp_t *tcp = &cp->tcps[tileno]; for(pino = 0; pino <= tcp->numpocs; pino++) { int tp_num=0; opj_pi_iterator_t *pi = pi_initialise_encode(image, cp, tileno,FINAL_PASS); if(!pi) { return -1;} tp_num = j2k_get_num_tp(cp,pino,tileno); totnum_tp = totnum_tp + tp_num; cur_totnum_tp = cur_totnum_tp + tp_num; pi_destroy(pi, cp, tileno); } j2k->cur_totnum_tp[tileno] = cur_totnum_tp; /* INDEX >> */ if (j2k->cstr_info) { j2k->cstr_info->tile[tileno].num_tps = cur_totnum_tp; j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(cur_totnum_tp * sizeof(opj_tp_info_t)); } /* << INDEX */ } return totnum_tp; } static void j2k_write_soc(opj_j2k_t *j2k) { opj_cio_t *cio = j2k->cio; cio_write(cio, J2K_MS_SOC, 2); if(j2k->cstr_info) j2k_add_mhmarker(j2k->cstr_info, J2K_MS_SOC, cio_tell(cio), 0); /* UniPG>> */ #ifdef USE_JPWL /* update markers struct */ j2k_add_marker(j2k->cstr_info, J2K_MS_SOC, cio_tell(cio) - 2, 2); #endif /* USE_JPWL */ /* <state = J2K_STATE_MHSIZ; /* Index */ if (j2k->cstr_info) { j2k->cstr_info->main_head_start = cio_tell(j2k->cio) - 2; j2k->cstr_info->codestream_size = cio_numbytesleft(j2k->cio) + 2 - j2k->cstr_info->main_head_start; } } /** * Reads a SOC marker (Start of Codestream) * @param p_header_data the data contained in the SOC box. * @param jp2 the jpeg2000 file codec. * @param p_header_size the size of the data contained in the SOC marker. * @param p_manager the user event manager. */ static opj_bool j2k_read_soc_v2( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager ) { OPJ_BYTE l_data [2]; OPJ_UINT32 l_marker; /* preconditions */ assert(p_j2k != 00); assert(p_manager != 00); assert(p_stream != 00); if (opj_stream_read_data(p_stream,l_data,2,p_manager) != 2) { return OPJ_FALSE; } opj_read_bytes(l_data,&l_marker,2); if (l_marker != J2K_MS_SOC) { return OPJ_FALSE; } /* Next marker should be a SIZ marker in the main header */ p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_MHSIZ; /* FIXME move it in a index structure included in p_j2k*/ p_j2k->cstr_index->main_head_start = (OPJ_UINT32) opj_stream_tell(p_stream) - 2; opj_event_msg_v2(p_manager, EVT_INFO, "Start to read j2k main header (%d).\n", p_j2k->cstr_index->main_head_start); /* Add the marker to the codestream index*/ j2k_add_mhmarker_v2(p_j2k->cstr_index, J2K_MS_SOC, p_j2k->cstr_index->main_head_start, 2); return OPJ_TRUE; } static void j2k_write_siz(opj_j2k_t *j2k) { int i; int lenp, len; opj_cio_t *cio = j2k->cio; opj_image_t *image = j2k->image; opj_cp_t *cp = j2k->cp; cio_write(cio, J2K_MS_SIZ, 2); /* SIZ */ lenp = cio_tell(cio); cio_skip(cio, 2); cio_write(cio, cp->rsiz, 2); /* Rsiz (capabilities) */ cio_write(cio, image->x1, 4); /* Xsiz */ cio_write(cio, image->y1, 4); /* Ysiz */ cio_write(cio, image->x0, 4); /* X0siz */ cio_write(cio, image->y0, 4); /* Y0siz */ cio_write(cio, cp->tdx, 4); /* XTsiz */ cio_write(cio, cp->tdy, 4); /* YTsiz */ cio_write(cio, cp->tx0, 4); /* XT0siz */ cio_write(cio, cp->ty0, 4); /* YT0siz */ cio_write(cio, image->numcomps, 2); /* Csiz */ for (i = 0; i < image->numcomps; i++) { cio_write(cio, image->comps[i].prec - 1 + (image->comps[i].sgnd << 7), 1); /* Ssiz_i */ cio_write(cio, image->comps[i].dx, 1); /* XRsiz_i */ cio_write(cio, image->comps[i].dy, 1); /* YRsiz_i */ } len = cio_tell(cio) - lenp; cio_seek(cio, lenp); cio_write(cio, len, 2); /* Lsiz */ cio_seek(cio, lenp + len); if(j2k->cstr_info) j2k_add_mhmarker(j2k->cstr_info, J2K_MS_SIZ, lenp, len); } static void j2k_read_siz(opj_j2k_t *j2k) { int len, i; opj_cio_t *cio = j2k->cio; opj_image_t *image = j2k->image; opj_cp_t *cp = j2k->cp; len = cio_read(cio, 2); /* Lsiz */ cio_read(cio, 2); /* Rsiz (capabilities) */ image->x1 = cio_read(cio, 4); /* Xsiz */ image->y1 = cio_read(cio, 4); /* Ysiz */ image->x0 = cio_read(cio, 4); /* X0siz */ image->y0 = cio_read(cio, 4); /* Y0siz */ cp->tdx = cio_read(cio, 4); /* XTsiz */ cp->tdy = cio_read(cio, 4); /* YTsiz */ cp->tx0 = cio_read(cio, 4); /* XT0siz */ cp->ty0 = cio_read(cio, 4); /* YT0siz */ if ((image->x0<0)||(image->x1<0)||(image->y0<0)||(image->y1<0)) { opj_event_msg(j2k->cinfo, EVT_ERROR, "%s: invalid image size (x0:%d, x1:%d, y0:%d, y1:%d)\n", image->x0,image->x1,image->y0,image->y1); return; } image->numcomps = cio_read(cio, 2); /* Csiz */ #ifdef USE_JPWL if (j2k->cp->correct) { /* if JPWL is on, we check whether TX errors have damaged too much the SIZ parameters */ if (!(image->x1 * image->y1)) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: bad image size (%d x %d)\n", image->x1, image->y1); if (!JPWL_ASSUME || JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } } if (image->numcomps != ((len - 38) / 3)) { opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: Csiz is %d => space in SIZ only for %d comps.!!!\n", image->numcomps, ((len - 38) / 3)); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } /* we try to correct */ opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n"); if (image->numcomps < ((len - 38) / 3)) { len = 38 + 3 * image->numcomps; opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting Lsiz to %d => HYPOTHESIS!!!\n", len); } else { image->numcomps = ((len - 38) / 3); opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting Csiz to %d => HYPOTHESIS!!!\n", image->numcomps); } } /* update components number in the jpwl_exp_comps filed */ cp->exp_comps = image->numcomps; } #endif /* USE_JPWL */ image->comps = (opj_image_comp_t*) opj_calloc(image->numcomps, sizeof(opj_image_comp_t)); for (i = 0; i < image->numcomps; i++) { int tmp, w, h; tmp = cio_read(cio, 1); /* Ssiz_i */ image->comps[i].prec = (tmp & 0x7f) + 1; image->comps[i].sgnd = tmp >> 7; image->comps[i].dx = cio_read(cio, 1); /* XRsiz_i */ image->comps[i].dy = cio_read(cio, 1); /* YRsiz_i */ #ifdef USE_JPWL if (j2k->cp->correct) { /* if JPWL is on, we check whether TX errors have damaged too much the SIZ parameters, again */ if (!(image->comps[i].dx * image->comps[i].dy)) { opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: bad XRsiz_%d/YRsiz_%d (%d x %d)\n", i, i, image->comps[i].dx, image->comps[i].dy); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } /* we try to correct */ opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust them\n"); if (!image->comps[i].dx) { image->comps[i].dx = 1; opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting XRsiz_%d to %d => HYPOTHESIS!!!\n", i, image->comps[i].dx); } if (!image->comps[i].dy) { image->comps[i].dy = 1; opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting YRsiz_%d to %d => HYPOTHESIS!!!\n", i, image->comps[i].dy); } } } #endif /* USE_JPWL */ /* TODO: unused ? */ w = int_ceildiv(image->x1 - image->x0, image->comps[i].dx); h = int_ceildiv(image->y1 - image->y0, image->comps[i].dy); image->comps[i].resno_decoded = 0; /* number of resolution decoded */ image->comps[i].factor = cp->reduce; /* reducing factor per component */ } cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx); cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy); #ifdef USE_JPWL if (j2k->cp->correct) { /* if JPWL is on, we check whether TX errors have damaged too much the SIZ parameters */ if ((cp->tw < 1) || (cp->th < 1) || (cp->tw > cp->max_tiles) || (cp->th > cp->max_tiles)) { opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: bad number of tiles (%d x %d)\n", cp->tw, cp->th); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } /* we try to correct */ opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust them\n"); if (cp->tw < 1) { cp->tw= 1; opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting %d tiles in x => HYPOTHESIS!!!\n", cp->tw); } if (cp->tw > cp->max_tiles) { cp->tw= 1; opj_event_msg(j2k->cinfo, EVT_WARNING, "- too large x, increase expectance of %d\n" "- setting %d tiles in x => HYPOTHESIS!!!\n", cp->max_tiles, cp->tw); } if (cp->th < 1) { cp->th= 1; opj_event_msg(j2k->cinfo, EVT_WARNING, "- setting %d tiles in y => HYPOTHESIS!!!\n", cp->th); } if (cp->th > cp->max_tiles) { cp->th= 1; opj_event_msg(j2k->cinfo, EVT_WARNING, "- too large y, increase expectance of %d to continue\n", "- setting %d tiles in y => HYPOTHESIS!!!\n", cp->max_tiles, cp->th); } } } #endif /* USE_JPWL */ cp->tcps = (opj_tcp_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tcp_t)); cp->tileno = (int*) opj_malloc(cp->tw * cp->th * sizeof(int)); cp->tileno_size = 0; #ifdef USE_JPWL if (j2k->cp->correct) { if (!cp->tcps) { opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: could not alloc tcps field of cp\n"); if (!JPWL_ASSUME || JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } } } #endif /* USE_JPWL */ for (i = 0; i < cp->tw * cp->th; i++) { cp->tcps[i].POC = 0; cp->tcps[i].numpocs = 0; cp->tcps[i].first = 1; } /* Initialization for PPM marker */ cp->ppm = 0; cp->ppm_data = NULL; cp->ppm_data_first = NULL; cp->ppm_previous = 0; cp->ppm_store = 0; j2k->default_tcp->tccps = (opj_tccp_t*) opj_calloc(image->numcomps, sizeof(opj_tccp_t)); for (i = 0; i < cp->tw * cp->th; i++) { cp->tcps[i].tccps = (opj_tccp_t*) opj_malloc(image->numcomps * sizeof(opj_tccp_t)); } j2k->tile_data = (unsigned char**) opj_calloc(cp->tw * cp->th, sizeof(unsigned char*)); j2k->tile_len = (int*) opj_calloc(cp->tw * cp->th, sizeof(int)); j2k->state = J2K_STATE_MH; /* Index */ if (j2k->cstr_info) { opj_codestream_info_t *cstr_info = j2k->cstr_info; cstr_info->image_w = image->x1 - image->x0; cstr_info->image_h = image->y1 - image->y0; cstr_info->numcomps = image->numcomps; cstr_info->tw = cp->tw; cstr_info->th = cp->th; cstr_info->tile_x = cp->tdx; cstr_info->tile_y = cp->tdy; cstr_info->tile_Ox = cp->tx0; cstr_info->tile_Oy = cp->ty0; cstr_info->tile = (opj_tile_info_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tile_info_t)); } } /** * Reads a SIZ marker (image and tile size) * @param p_header_data the data contained in the SIZ box. * @param jp2 the jpeg2000 file codec. * @param p_header_size the size of the data contained in the SIZ marker. * @param p_manager the user event manager. */ opj_bool j2k_read_siz_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 l_size, i; OPJ_UINT32 l_nb_comp; OPJ_UINT32 l_nb_comp_remain; OPJ_UINT32 l_remaining_size; OPJ_UINT32 l_nb_tiles; OPJ_UINT32 l_tmp; opj_image_t *l_image = 00; opj_cp_v2_t *l_cp = 00; opj_image_comp_t * l_img_comp = 00; opj_tcp_v2_t * l_current_tile_param = 00; // preconditions assert(p_j2k != 00); assert(p_manager != 00); assert(p_header_data != 00); l_image = p_j2k->m_image; l_cp = &(p_j2k->m_cp); // minimum size == 39 - 3 (= minimum component parameter) if (p_header_size < 36) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error with SIZ marker size\n"); return OPJ_FALSE; } l_remaining_size = p_header_size - 36; l_nb_comp = l_remaining_size / 3; l_nb_comp_remain = l_remaining_size % 3; if (l_nb_comp_remain != 0){ opj_event_msg_v2(p_manager, EVT_ERROR, "Error with SIZ marker size\n"); return OPJ_FALSE; } l_size = p_header_size + 2; /* Lsiz */ opj_read_bytes(p_header_data,&l_tmp ,2); /* Rsiz (capabilities) */ p_header_data+=2; l_cp->rsiz = (OPJ_RSIZ_CAPABILITIES) l_tmp; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_image->x1, 4); /* Xsiz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_image->y1, 4); /* Ysiz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_image->x0, 4); /* X0siz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_image->y0, 4); /* Y0siz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_cp->tdx, 4); /* XTsiz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_cp->tdy, 4); /* YTsiz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_cp->tx0, 4); /* XT0siz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_cp->ty0, 4); /* YT0siz */ p_header_data+=4; opj_read_bytes(p_header_data, (OPJ_UINT32*) &l_tmp, 2); /* Csiz */ p_header_data+=2; if (l_tmp < 16385) l_image->numcomps = (OPJ_UINT16) l_tmp; else { opj_event_msg_v2(p_manager, EVT_ERROR, "Error with SIZ marker: number of component is illegal -> %d\n", l_tmp); return OPJ_FALSE; } if (l_image->numcomps != l_nb_comp) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error with SIZ marker: number of component is not compatible with the remaining number of parameters ( %d vs %d)\n", l_image->numcomps, l_nb_comp); return OPJ_FALSE; } #ifdef USE_JPWL if (l_cp->correct) { /* if JPWL is on, we check whether TX errors have damaged too much the SIZ parameters */ if (!(l_image->x1 * l_image->y1)) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: bad image size (%d x %d)\n", l_image->x1, l_image->y1); if (!JPWL_ASSUME || JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } } /* FIXME check previously in the function so why keep this piece of code ? Need by the norm ? if (l_image->numcomps != ((len - 38) / 3)) { opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: Csiz is %d => space in SIZ only for %d comps.!!!\n", l_image->numcomps, ((len - 38) / 3)); if (!JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } */ /* we try to correct */ /* opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust this\n"); if (l_image->numcomps < ((len - 38) / 3)) { len = 38 + 3 * l_image->numcomps; opj_event_msg_v2(p_manager, EVT_WARNING, "- setting Lsiz to %d => HYPOTHESIS!!!\n", len); } else { l_image->numcomps = ((len - 38) / 3); opj_event_msg_v2(p_manager, EVT_WARNING, "- setting Csiz to %d => HYPOTHESIS!!!\n", l_image->numcomps); } } */ /* update components number in the jpwl_exp_comps filed */ l_cp->exp_comps = l_image->numcomps; } #endif /* USE_JPWL */ // Allocate the resulting image components l_image->comps = (opj_image_comp_t*) opj_calloc(l_image->numcomps, sizeof(opj_image_comp_t)); if (l_image->comps == 00){ l_image->numcomps = 0; opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n"); return OPJ_FALSE; } memset(l_image->comps,0,l_image->numcomps * sizeof(opj_image_comp_t)); l_img_comp = l_image->comps; // Read the component information for (i = 0; i < l_image->numcomps; ++i){ OPJ_UINT32 tmp; opj_read_bytes(p_header_data,&tmp,1); /* Ssiz_i */ ++p_header_data; l_img_comp->prec = (tmp & 0x7f) + 1; l_img_comp->sgnd = tmp >> 7; opj_read_bytes(p_header_data,&tmp,1); /* XRsiz_i */ ++p_header_data; l_img_comp->dx = (OPJ_INT32)tmp; // should be between 1 and 255 opj_read_bytes(p_header_data,&tmp,1); /* YRsiz_i */ ++p_header_data; l_img_comp->dy = (OPJ_INT32)tmp; // should be between 1 and 255 #ifdef USE_JPWL if (l_cp->correct) { /* if JPWL is on, we check whether TX errors have damaged too much the SIZ parameters, again */ if (!(l_image->comps[i].dx * l_image->comps[i].dy)) { opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: bad XRsiz_%d/YRsiz_%d (%d x %d)\n", i, i, l_image->comps[i].dx, l_image->comps[i].dy); if (!JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } /* we try to correct */ opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust them\n"); if (!l_image->comps[i].dx) { l_image->comps[i].dx = 1; opj_event_msg_v2(p_manager, EVT_WARNING, "- setting XRsiz_%d to %d => HYPOTHESIS!!!\n", i, l_image->comps[i].dx); } if (!l_image->comps[i].dy) { l_image->comps[i].dy = 1; opj_event_msg_v2(p_manager, EVT_WARNING, "- setting YRsiz_%d to %d => HYPOTHESIS!!!\n", i, l_image->comps[i].dy); } } } #endif /* USE_JPWL */ l_img_comp->resno_decoded = 0; /* number of resolution decoded */ l_img_comp->factor = l_cp->m_specific_param.m_dec.m_reduce; /* reducing factor per component */ ++l_img_comp; } // Compute the number of tiles l_cp->tw = int_ceildiv(l_image->x1 - l_cp->tx0, l_cp->tdx); l_cp->th = int_ceildiv(l_image->y1 - l_cp->ty0, l_cp->tdy); l_nb_tiles = l_cp->tw * l_cp->th; // Define the tiles which will be decoded if (p_j2k->m_specific_param.m_decoder.m_discard_tiles) { p_j2k->m_specific_param.m_decoder.m_start_tile_x = (p_j2k->m_specific_param.m_decoder.m_start_tile_x - l_cp->tx0) / l_cp->tdx; p_j2k->m_specific_param.m_decoder.m_start_tile_y = (p_j2k->m_specific_param.m_decoder.m_start_tile_y - l_cp->ty0) / l_cp->tdy; p_j2k->m_specific_param.m_decoder.m_end_tile_x = int_ceildiv((p_j2k->m_specific_param.m_decoder.m_end_tile_x - l_cp->tx0), l_cp->tdx); p_j2k->m_specific_param.m_decoder.m_end_tile_y = int_ceildiv((p_j2k->m_specific_param.m_decoder.m_end_tile_y - l_cp->ty0), l_cp->tdy); } else { p_j2k->m_specific_param.m_decoder.m_start_tile_x = 0; p_j2k->m_specific_param.m_decoder.m_start_tile_y = 0; p_j2k->m_specific_param.m_decoder.m_end_tile_x = l_cp->tw; p_j2k->m_specific_param.m_decoder.m_end_tile_y = l_cp->th; } #ifdef USE_JPWL if (l_cp->correct) { /* if JPWL is on, we check whether TX errors have damaged too much the SIZ parameters */ if ((l_cp->tw < 1) || (l_cp->th < 1) || (l_cp->tw > l_cp->max_tiles) || (l_cp->th > l_cp->max_tiles)) { opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: bad number of tiles (%d x %d)\n", l_cp->tw, l_cp->th); if (!JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } /* we try to correct */ opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust them\n"); if (l_cp->tw < 1) { l_cp->tw= 1; opj_event_msg_v2(p_manager, EVT_WARNING, "- setting %d tiles in x => HYPOTHESIS!!!\n", l_cp->tw); } if (l_cp->tw > l_cp->max_tiles) { l_cp->tw= 1; opj_event_msg_v2(p_manager, EVT_WARNING, "- too large x, increase expectance of %d\n" "- setting %d tiles in x => HYPOTHESIS!!!\n", l_cp->max_tiles, l_cp->tw); } if (l_cp->th < 1) { l_cp->th= 1; opj_event_msg_v2(p_manager, EVT_WARNING, "- setting %d tiles in y => HYPOTHESIS!!!\n", l_cp->th); } if (l_cp->th > l_cp->max_tiles) { l_cp->th= 1; opj_event_msg_v2(p_manager, EVT_WARNING, "- too large y, increase expectance of %d to continue\n", "- setting %d tiles in y => HYPOTHESIS!!!\n", l_cp->max_tiles, l_cp->th); } } } #endif /* USE_JPWL */ /* memory allocations */ l_cp->tcps = (opj_tcp_v2_t*) opj_calloc(l_nb_tiles, sizeof(opj_tcp_v2_t)); if (l_cp->tcps == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n"); return OPJ_FALSE; } memset(l_cp->tcps,0,l_nb_tiles*sizeof(opj_tcp_t)); #ifdef USE_JPWL if (l_cp->correct) { if (!l_cp->tcps) { opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: could not alloc tcps field of cp\n"); if (!JPWL_ASSUME || JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } } } #endif /* USE_JPWL */ p_j2k->m_specific_param.m_decoder.m_default_tcp->tccps = (opj_tccp_t*) opj_calloc(l_image->numcomps, sizeof(opj_tccp_t)); if(p_j2k->m_specific_param.m_decoder.m_default_tcp->tccps == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n"); return OPJ_FALSE; } memset(p_j2k->m_specific_param.m_decoder.m_default_tcp->tccps ,0,l_image->numcomps*sizeof(opj_tccp_t)); p_j2k->m_specific_param.m_decoder.m_default_tcp->m_mct_records = (opj_mct_data_t*)opj_malloc(J2K_MCT_DEFAULT_NB_RECORDS * sizeof(opj_mct_data_t)); if (! p_j2k->m_specific_param.m_decoder.m_default_tcp->m_mct_records) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n"); return OPJ_FALSE; } memset(p_j2k->m_specific_param.m_decoder.m_default_tcp->m_mct_records,0,J2K_MCT_DEFAULT_NB_RECORDS * sizeof(opj_mct_data_t)); p_j2k->m_specific_param.m_decoder.m_default_tcp->m_nb_max_mct_records = J2K_MCT_DEFAULT_NB_RECORDS; p_j2k->m_specific_param.m_decoder.m_default_tcp->m_mcc_records = (opj_simple_mcc_decorrelation_data_t*) opj_malloc(J2K_MCC_DEFAULT_NB_RECORDS * sizeof(opj_simple_mcc_decorrelation_data_t)); if (! p_j2k->m_specific_param.m_decoder.m_default_tcp->m_mcc_records) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n"); return OPJ_FALSE; } memset(p_j2k->m_specific_param.m_decoder.m_default_tcp->m_mcc_records,0,J2K_MCC_DEFAULT_NB_RECORDS * sizeof(opj_simple_mcc_decorrelation_data_t)); p_j2k->m_specific_param.m_decoder.m_default_tcp->m_nb_max_mcc_records = J2K_MCC_DEFAULT_NB_RECORDS; /* set up default dc level shift */ for (i=0;inumcomps;++i) { if (! l_image->comps[i].sgnd) { p_j2k->m_specific_param.m_decoder.m_default_tcp->tccps[i].m_dc_level_shift = 1 << (l_image->comps[i].prec - 1); } } l_current_tile_param = l_cp->tcps; for (i = 0; i < l_nb_tiles; ++i) { l_current_tile_param->tccps = (opj_tccp_t*) opj_malloc(l_image->numcomps * sizeof(opj_tccp_t)); if (l_current_tile_param->tccps == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory to take in charge SIZ marker\n"); return OPJ_FALSE; } memset(l_current_tile_param->tccps,0,l_image->numcomps * sizeof(opj_tccp_t)); ++l_current_tile_param; } p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_MH; // FIXME J2K_DEC_STATE_MH; opj_image_comp_header_update(l_image,l_cp); return OPJ_TRUE; } static void j2k_write_com(opj_j2k_t *j2k) { unsigned int i; int lenp, len; if(j2k->cp->comment) { opj_cio_t *cio = j2k->cio; char *comment = j2k->cp->comment; cio_write(cio, J2K_MS_COM, 2); lenp = cio_tell(cio); cio_skip(cio, 2); cio_write(cio, 1, 2); /* General use (IS 8859-15:1999 (Latin) values) */ for (i = 0; i < strlen(comment); i++) { cio_write(cio, comment[i], 1); } len = cio_tell(cio) - lenp; cio_seek(cio, lenp); cio_write(cio, len, 2); cio_seek(cio, lenp + len); if(j2k->cstr_info) j2k_add_mhmarker(j2k->cstr_info, J2K_MS_COM, lenp, len); } } static void j2k_read_com(opj_j2k_t *j2k) { int len; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); cio_skip(cio, len - 2); } /** * Reads a COM marker (comments) * @param p_header_data the data contained in the COM box. * @param jp2 the jpeg2000 file codec. * @param p_header_size the size of the data contained in the COM marker. * @param p_manager the user event manager. */ opj_bool j2k_read_com_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { // preconditions assert(p_j2k != 00); assert(p_manager != 00); assert(p_header_data != 00); return OPJ_TRUE; } static void j2k_write_cox(opj_j2k_t *j2k, int compno) { int i; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; opj_tccp_t *tccp = &tcp->tccps[compno]; opj_cio_t *cio = j2k->cio; cio_write(cio, tccp->numresolutions - 1, 1); /* SPcox (D) */ cio_write(cio, tccp->cblkw - 2, 1); /* SPcox (E) */ cio_write(cio, tccp->cblkh - 2, 1); /* SPcox (F) */ cio_write(cio, tccp->cblksty, 1); /* SPcox (G) */ cio_write(cio, tccp->qmfbid, 1); /* SPcox (H) */ if (tccp->csty & J2K_CCP_CSTY_PRT) { for (i = 0; i < tccp->numresolutions; i++) { cio_write(cio, tccp->prcw[i] + (tccp->prch[i] << 4), 1); /* SPcox (I_i) */ } } } static void j2k_read_cox(opj_j2k_t *j2k, int compno) { int i; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; opj_tccp_t *tccp = &tcp->tccps[compno]; opj_cio_t *cio = j2k->cio; tccp->numresolutions = cio_read(cio, 1) + 1; /* SPcox (D) */ // If user wants to remove more resolutions than the codestream contains, return error if (cp->reduce >= tccp->numresolutions) { opj_event_msg(j2k->cinfo, EVT_ERROR, "Error decoding component %d.\nThe number of resolutions to remove is higher than the number " "of resolutions of this component\nModify the cp_reduce parameter.\n\n", compno); j2k->state |= J2K_STATE_ERR; } tccp->cblkw = cio_read(cio, 1) + 2; /* SPcox (E) */ tccp->cblkh = cio_read(cio, 1) + 2; /* SPcox (F) */ tccp->cblksty = cio_read(cio, 1); /* SPcox (G) */ tccp->qmfbid = cio_read(cio, 1); /* SPcox (H) */ if (tccp->csty & J2K_CP_CSTY_PRT) { for (i = 0; i < tccp->numresolutions; i++) { int tmp = cio_read(cio, 1); /* SPcox (I_i) */ tccp->prcw[i] = tmp & 0xf; tccp->prch[i] = tmp >> 4; } } /* INDEX >> */ if(j2k->cstr_info && compno == 0) { for (i = 0; i < tccp->numresolutions; i++) { if (tccp->csty & J2K_CP_CSTY_PRT) { j2k->cstr_info->tile[j2k->curtileno].pdx[i] = tccp->prcw[i]; j2k->cstr_info->tile[j2k->curtileno].pdy[i] = tccp->prch[i]; } else { j2k->cstr_info->tile[j2k->curtileno].pdx[i] = 15; j2k->cstr_info->tile[j2k->curtileno].pdx[i] = 15; } } } /* << INDEX */ } static void j2k_write_cod(opj_j2k_t *j2k) { opj_cp_t *cp = NULL; opj_tcp_t *tcp = NULL; int lenp, len; opj_cio_t *cio = j2k->cio; cio_write(cio, J2K_MS_COD, 2); /* COD */ lenp = cio_tell(cio); cio_skip(cio, 2); cp = j2k->cp; tcp = &cp->tcps[j2k->curtileno]; cio_write(cio, tcp->csty, 1); /* Scod */ cio_write(cio, tcp->prg, 1); /* SGcod (A) */ cio_write(cio, tcp->numlayers, 2); /* SGcod (B) */ cio_write(cio, tcp->mct, 1); /* SGcod (C) */ j2k_write_cox(j2k, 0); len = cio_tell(cio) - lenp; cio_seek(cio, lenp); cio_write(cio, len, 2); /* Lcod */ cio_seek(cio, lenp + len); if(j2k->cstr_info) j2k_add_mhmarker(j2k->cstr_info, J2K_MS_COD, lenp, len); } static void j2k_read_cod(opj_j2k_t *j2k) { int len, i, pos; opj_cio_t *cio = j2k->cio; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; opj_image_t *image = j2k->image; len = cio_read(cio, 2); /* Lcod */ tcp->csty = cio_read(cio, 1); /* Scod */ tcp->prg = (OPJ_PROG_ORDER)cio_read(cio, 1); /* SGcod (A) */ tcp->numlayers = cio_read(cio, 2); /* SGcod (B) */ tcp->mct = cio_read(cio, 1); /* SGcod (C) */ pos = cio_tell(cio); for (i = 0; i < image->numcomps; i++) { tcp->tccps[i].csty = tcp->csty & J2K_CP_CSTY_PRT; cio_seek(cio, pos); j2k_read_cox(j2k, i); } /* Index */ if (j2k->cstr_info) { opj_codestream_info_t *cstr_info = j2k->cstr_info; cstr_info->prog = tcp->prg; cstr_info->numlayers = tcp->numlayers; cstr_info->numdecompos = (int*) opj_malloc(image->numcomps * sizeof(int)); for (i = 0; i < image->numcomps; i++) { cstr_info->numdecompos[i] = tcp->tccps[i].numresolutions - 1; } } } /** * Reads a COD marker (Coding Styke defaults) * @param p_header_data the data contained in the COD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the COD marker. * @param p_manager the user event manager. */ opj_bool j2k_read_cod_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { // loop OPJ_UINT32 i; OPJ_UINT32 l_tmp; opj_cp_v2_t *l_cp = 00; opj_tcp_v2_t *l_tcp = 00; opj_image_t *l_image = 00; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_image = p_j2k->m_image; l_cp = &(p_j2k->m_cp); /* If we are in the first tile-part header of the current tile */ l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH) ? &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; /* Make sure room is sufficient */ if (p_header_size < 5) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading COD marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_tcp->csty,1); /* Scod */ ++p_header_data; opj_read_bytes(p_header_data,&l_tmp,1); /* SGcod (A) */ ++p_header_data; l_tcp->prg = (OPJ_PROG_ORDER) l_tmp; opj_read_bytes(p_header_data,&l_tcp->numlayers,2); /* SGcod (B) */ p_header_data+=2; // If user didn't set a number layer to decode take the max specify in the codestream. if (l_cp->m_specific_param.m_dec.m_layer) { l_tcp->num_layers_to_decode = l_cp->m_specific_param.m_dec.m_layer; } else { l_tcp->num_layers_to_decode = l_tcp->numlayers; } opj_read_bytes(p_header_data,&l_tcp->mct,1); /* SGcod (C) */ ++p_header_data; p_header_size -= 5; for (i = 0; i < l_image->numcomps; ++i) { l_tcp->tccps[i].csty = l_tcp->csty & J2K_CCP_CSTY_PRT; } if (! j2k_read_SPCod_SPCoc(p_j2k,0,p_header_data,&p_header_size,p_manager)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading COD marker\n"); return OPJ_FALSE; } if (p_header_size != 0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading COD marker\n"); return OPJ_FALSE; } /* Apply the coding style to other components of the current tile or the m_default_tcp*/ j2k_copy_tile_component_parameters(p_j2k); /* Index */ #ifdef WIP_REMOVE_MSD if (p_j2k->cstr_info) { //opj_codestream_info_t *l_cstr_info = p_j2k->cstr_info; p_j2k->cstr_info->prog = l_tcp->prg; p_j2k->cstr_info->numlayers = l_tcp->numlayers; p_j2k->cstr_info->numdecompos = (OPJ_INT32*) opj_malloc(l_image->numcomps * sizeof(OPJ_UINT32)); for (i = 0; i < l_image->numcomps; ++i) { p_j2k->cstr_info->numdecompos[i] = l_tcp->tccps[i].numresolutions - 1; } } #endif return OPJ_TRUE; } static void j2k_write_coc(opj_j2k_t *j2k, int compno) { int lenp, len; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; opj_image_t *image = j2k->image; opj_cio_t *cio = j2k->cio; cio_write(cio, J2K_MS_COC, 2); /* COC */ lenp = cio_tell(cio); cio_skip(cio, 2); cio_write(cio, compno, image->numcomps <= 256 ? 1 : 2); /* Ccoc */ cio_write(cio, tcp->tccps[compno].csty, 1); /* Scoc */ j2k_write_cox(j2k, compno); len = cio_tell(cio) - lenp; cio_seek(cio, lenp); cio_write(cio, len, 2); /* Lcoc */ cio_seek(cio, lenp + len); } static void j2k_read_coc(opj_j2k_t *j2k) { int len, compno; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; opj_image_t *image = j2k->image; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); /* Lcoc */ compno = cio_read(cio, image->numcomps <= 256 ? 1 : 2); /* Ccoc */ tcp->tccps[compno].csty = cio_read(cio, 1); /* Scoc */ j2k_read_cox(j2k, compno); } /** * Reads a COC marker (Coding Style Component) * @param p_header_data the data contained in the COC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the COC marker. * @param p_manager the user event manager. */ opj_bool j2k_read_coc_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { opj_cp_v2_t *l_cp = NULL; opj_tcp_v2_t *l_tcp = NULL; opj_image_t *l_image = NULL; OPJ_UINT32 l_comp_room; OPJ_UINT32 l_comp_no; // preconditions assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_cp = &(p_j2k->m_cp); l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH ) ? /*FIXME J2K_DEC_STATE_TPH*/ &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; l_image = p_j2k->m_image; l_comp_room = l_image->numcomps <= 256 ? 1 : 2; // make sure room is sufficient if (p_header_size < l_comp_room + 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading COC marker\n"); return OPJ_FALSE; } p_header_size -= l_comp_room + 1; opj_read_bytes(p_header_data,&l_comp_no,l_comp_room); /* Ccoc */ p_header_data += l_comp_room; if (l_comp_no >= l_image->numcomps) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading COC marker (bad number of components)\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_tcp->tccps[l_comp_no].csty,1); /* Scoc */ ++p_header_data ; if (! j2k_read_SPCod_SPCoc(p_j2k,l_comp_no,p_header_data,&p_header_size,p_manager)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading COC marker\n"); return OPJ_FALSE; } if (p_header_size != 0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading COC marker\n"); return OPJ_FALSE; } return OPJ_TRUE; } static void j2k_write_qcx(opj_j2k_t *j2k, int compno) { int bandno, numbands; int expn, mant; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; opj_tccp_t *tccp = &tcp->tccps[compno]; opj_cio_t *cio = j2k->cio; cio_write(cio, tccp->qntsty + (tccp->numgbits << 5), 1); /* Sqcx */ numbands = tccp->qntsty == J2K_CCP_QNTSTY_SIQNT ? 1 : tccp->numresolutions * 3 - 2; for (bandno = 0; bandno < numbands; bandno++) { expn = tccp->stepsizes[bandno].expn; mant = tccp->stepsizes[bandno].mant; if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) { cio_write(cio, expn << 3, 1); /* SPqcx_i */ } else { cio_write(cio, (expn << 11) + mant, 2); /* SPqcx_i */ } } } static void j2k_read_qcx(opj_j2k_t *j2k, int compno, int len) { int tmp; int bandno, numbands; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; opj_tccp_t *tccp = &tcp->tccps[compno]; opj_cio_t *cio = j2k->cio; tmp = cio_read(cio, 1); /* Sqcx */ tccp->qntsty = tmp & 0x1f; tccp->numgbits = tmp >> 5; numbands = (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ? 1 : ((tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) ? len - 1 : (len - 1) / 2); #ifdef USE_JPWL if (j2k->cp->correct) { /* if JPWL is on, we check whether there are too many subbands */ if ((numbands < 0) || (numbands >= J2K_MAXBANDS)) { opj_event_msg(j2k->cinfo, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: bad number of subbands in Sqcx (%d)\n", numbands); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } /* we try to correct */ numbands = 1; opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust them\n" "- setting number of bands to %d => HYPOTHESIS!!!\n", numbands); }; }; #else /* We check whether there are too many subbands */ if ((numbands < 0) || (numbands >= J2K_MAXBANDS)) { opj_event_msg(j2k->cinfo, EVT_WARNING , "bad number of subbands in Sqcx (%d) regarding to J2K_MAXBANDS (%d) \n" "- limiting number of bands to J2K_MAXBANDS and try to move to the next markers\n", numbands, J2K_MAXBANDS); } #endif /* USE_JPWL */ for (bandno = 0; bandno < numbands; bandno++) { int expn, mant; if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) { expn = cio_read(cio, 1) >> 3; /* SPqcx_i */ mant = 0; } else { tmp = cio_read(cio, 2); /* SPqcx_i */ expn = tmp >> 11; mant = tmp & 0x7ff; } if (bandno < J2K_MAXBANDS){ tccp->stepsizes[bandno].expn = expn; tccp->stepsizes[bandno].mant = mant; } } /* Add Antonin : if scalar_derived -> compute other stepsizes */ if (tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) { for (bandno = 1; bandno < J2K_MAXBANDS; bandno++) { tccp->stepsizes[bandno].expn = ((tccp->stepsizes[0].expn) - ((bandno - 1) / 3) > 0) ? (tccp->stepsizes[0].expn) - ((bandno - 1) / 3) : 0; tccp->stepsizes[bandno].mant = tccp->stepsizes[0].mant; } } /* ddA */ } static void j2k_write_qcd(opj_j2k_t *j2k) { int lenp, len; opj_cio_t *cio = j2k->cio; cio_write(cio, J2K_MS_QCD, 2); /* QCD */ lenp = cio_tell(cio); cio_skip(cio, 2); j2k_write_qcx(j2k, 0); len = cio_tell(cio) - lenp; cio_seek(cio, lenp); cio_write(cio, len, 2); /* Lqcd */ cio_seek(cio, lenp + len); if(j2k->cstr_info) j2k_add_mhmarker(j2k->cstr_info, J2K_MS_QCD, lenp, len); } static void j2k_read_qcd(opj_j2k_t *j2k) { int len, i, pos; opj_cio_t *cio = j2k->cio; opj_image_t *image = j2k->image; len = cio_read(cio, 2); /* Lqcd */ pos = cio_tell(cio); for (i = 0; i < image->numcomps; i++) { cio_seek(cio, pos); j2k_read_qcx(j2k, i, len - 2); } } /** * Reads a QCD marker (Quantization defaults) * @param p_header_data the data contained in the QCD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the QCD marker. * @param p_manager the user event manager. */ opj_bool j2k_read_qcd_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); if (! j2k_read_SQcd_SQcc(p_j2k,0,p_header_data,&p_header_size,p_manager)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading QCD marker\n"); return OPJ_FALSE; } if (p_header_size != 0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading QCD marker\n"); return OPJ_FALSE; } /* Apply the quantization parameters to other components of the current tile or the m_default_tcp */ j2k_copy_tile_quantization_parameters(p_j2k); return OPJ_TRUE; } static void j2k_write_qcc(opj_j2k_t *j2k, int compno) { int lenp, len; opj_cio_t *cio = j2k->cio; cio_write(cio, J2K_MS_QCC, 2); /* QCC */ lenp = cio_tell(cio); cio_skip(cio, 2); cio_write(cio, compno, j2k->image->numcomps <= 256 ? 1 : 2); /* Cqcc */ j2k_write_qcx(j2k, compno); len = cio_tell(cio) - lenp; cio_seek(cio, lenp); cio_write(cio, len, 2); /* Lqcc */ cio_seek(cio, lenp + len); } static void j2k_read_qcc(opj_j2k_t *j2k) { int len, compno; int numcomp = j2k->image->numcomps; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); /* Lqcc */ compno = cio_read(cio, numcomp <= 256 ? 1 : 2); /* Cqcc */ #ifdef USE_JPWL if (j2k->cp->correct) { static int backup_compno = 0; /* compno is negative or larger than the number of components!!! */ if ((compno < 0) || (compno >= numcomp)) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: bad component number in QCC (%d out of a maximum of %d)\n", compno, numcomp); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } /* we try to correct */ compno = backup_compno % numcomp; opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n" "- setting component number to %d\n", compno); } /* keep your private count of tiles */ backup_compno++; }; #endif /* USE_JPWL */ j2k_read_qcx(j2k, compno, len - 2 - (numcomp <= 256 ? 1 : 2)); } /** * Reads a QCC marker (Quantization component) * @param p_header_data the data contained in the QCC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the QCC marker. * @param p_manager the user event manager. */ opj_bool j2k_read_qcc_v2( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager) { OPJ_UINT32 l_num_comp,l_comp_no; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_num_comp = p_j2k->m_image->numcomps; if (l_num_comp <= 256) { if (p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading QCC marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_comp_no,1); ++p_header_data; --p_header_size; } else { if (p_header_size < 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading QCC marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_comp_no,2); p_header_data+=2; p_header_size-=2; } #ifdef USE_JPWL if (p_j2k->m_cp.correct) { static OPJ_UINT32 backup_compno = 0; /* compno is negative or larger than the number of components!!! */ if ((l_comp_no < 0) || (l_comp_no >= l_num_comp)) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: bad component number in QCC (%d out of a maximum of %d)\n", l_comp_no, l_num_comp); if (!JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } /* we try to correct */ l_comp_no = backup_compno % l_num_comp; opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust this\n" "- setting component number to %d\n", l_comp_no); } /* keep your private count of tiles */ backup_compno++; }; #endif /* USE_JPWL */ if (! j2k_read_SQcd_SQcc(p_j2k,l_comp_no,p_header_data,&p_header_size,p_manager)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading QCC marker\n"); return OPJ_FALSE; } if (p_header_size != 0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading QCC marker\n"); return OPJ_FALSE; } return OPJ_TRUE; } static void j2k_write_poc(opj_j2k_t *j2k) { int len, numpchgs, i; int numcomps = j2k->image->numcomps; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = &cp->tcps[j2k->curtileno]; opj_tccp_t *tccp = &tcp->tccps[0]; opj_cio_t *cio = j2k->cio; numpchgs = 1 + tcp->numpocs; cio_write(cio, J2K_MS_POC, 2); /* POC */ len = 2 + (5 + 2 * (numcomps <= 256 ? 1 : 2)) * numpchgs; cio_write(cio, len, 2); /* Lpoc */ for (i = 0; i < numpchgs; i++) { opj_poc_t *poc = &tcp->pocs[i]; cio_write(cio, poc->resno0, 1); /* RSpoc_i */ cio_write(cio, poc->compno0, (numcomps <= 256 ? 1 : 2)); /* CSpoc_i */ cio_write(cio, poc->layno1, 2); /* LYEpoc_i */ poc->layno1 = int_min(poc->layno1, tcp->numlayers); cio_write(cio, poc->resno1, 1); /* REpoc_i */ poc->resno1 = int_min(poc->resno1, tccp->numresolutions); cio_write(cio, poc->compno1, (numcomps <= 256 ? 1 : 2)); /* CEpoc_i */ poc->compno1 = int_min(poc->compno1, numcomps); cio_write(cio, poc->prg, 1); /* Ppoc_i */ } } static void j2k_read_poc(opj_j2k_t *j2k) { int len, numpchgs, i, old_poc; int numcomps = j2k->image->numcomps; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; opj_cio_t *cio = j2k->cio; old_poc = tcp->POC ? tcp->numpocs + 1 : 0; tcp->POC = 1; len = cio_read(cio, 2); /* Lpoc */ numpchgs = (len - 2) / (5 + 2 * (numcomps <= 256 ? 1 : 2)); for (i = old_poc; i < numpchgs + old_poc; i++) { opj_poc_t *poc; poc = &tcp->pocs[i]; poc->resno0 = cio_read(cio, 1); /* RSpoc_i */ poc->compno0 = cio_read(cio, numcomps <= 256 ? 1 : 2); /* CSpoc_i */ poc->layno1 = cio_read(cio, 2); /* LYEpoc_i */ poc->resno1 = cio_read(cio, 1); /* REpoc_i */ poc->compno1 = int_min( cio_read(cio, numcomps <= 256 ? 1 : 2), (unsigned int) numcomps); /* CEpoc_i */ poc->prg = (OPJ_PROG_ORDER)cio_read(cio, 1); /* Ppoc_i */ } tcp->numpocs = numpchgs + old_poc - 1; } /** * Reads a POC marker (Progression Order Change) * * @param p_header_data the data contained in the POC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the POC marker. * @param p_manager the user event manager. */ opj_bool j2k_read_poc_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager) { OPJ_UINT32 i, l_nb_comp, l_tmp; opj_image_t * l_image = 00; OPJ_UINT32 l_old_poc_nb, l_current_poc_nb, l_current_poc_remaining; OPJ_UINT32 l_chunk_size, l_comp_room; opj_cp_v2_t *l_cp = 00; opj_tcp_v2_t *l_tcp = 00; opj_poc_t *l_current_poc = 00; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_image = p_j2k->m_image; l_nb_comp = l_image->numcomps; if (l_nb_comp <= 256) { l_comp_room = 1; } else { l_comp_room = 2; } l_chunk_size = 5 + 2 * l_comp_room; l_current_poc_nb = p_header_size / l_chunk_size; l_current_poc_remaining = p_header_size % l_chunk_size; if ((l_current_poc_nb <= 0) || (l_current_poc_remaining != 0)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading POC marker\n"); return OPJ_FALSE; } l_cp = &(p_j2k->m_cp); l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH) ? &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; l_old_poc_nb = l_tcp->POC ? l_tcp->numpocs + 1 : 0; l_current_poc_nb += l_old_poc_nb; assert(l_current_poc_nb < 32); /* now poc is in use.*/ l_tcp->POC = 1; l_current_poc = &l_tcp->pocs[l_old_poc_nb]; for (i = l_old_poc_nb; i < l_current_poc_nb; ++i) { opj_read_bytes(p_header_data,&(l_current_poc->resno0),1); /* RSpoc_i */ ++p_header_data; opj_read_bytes(p_header_data,&(l_current_poc->compno0),l_comp_room); /* CSpoc_i */ p_header_data+=l_comp_room; opj_read_bytes(p_header_data,&(l_current_poc->layno1),2); /* LYEpoc_i */ p_header_data+=2; opj_read_bytes(p_header_data,&(l_current_poc->resno1),1); /* REpoc_i */ ++p_header_data; opj_read_bytes(p_header_data,&(l_current_poc->compno1),l_comp_room); /* CEpoc_i */ p_header_data+=l_comp_room; opj_read_bytes(p_header_data,&l_tmp,1); /* Ppoc_i */ ++p_header_data; l_current_poc->prg = (OPJ_PROG_ORDER) l_tmp; /* make sure comp is in acceptable bounds */ l_current_poc->compno1 = uint_min(l_current_poc->compno1, l_nb_comp); ++l_current_poc; } l_tcp->numpocs = l_current_poc_nb - 1; return OPJ_TRUE; } static void j2k_read_crg(opj_j2k_t *j2k) { int len, i, Xcrg_i, Ycrg_i; opj_cio_t *cio = j2k->cio; int numcomps = j2k->image->numcomps; len = cio_read(cio, 2); /* Lcrg */ for (i = 0; i < numcomps; i++) { Xcrg_i = cio_read(cio, 2); /* Xcrg_i */ Ycrg_i = cio_read(cio, 2); /* Ycrg_i */ } } /** * Reads a CRG marker (Component registration) * * @param p_header_data the data contained in the TLM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the TLM marker. * @param p_manager the user event manager. */ opj_bool j2k_read_crg_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 l_nb_comp; // preconditions assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_nb_comp = p_j2k->m_image->numcomps; if (p_header_size != l_nb_comp *4) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading CRG marker\n"); return OPJ_FALSE; } /* Do not care of this at the moment since only local variables are set here */ /* for (i = 0; i < l_nb_comp; ++i) { opj_read_bytes(p_header_data,&l_Xcrg_i,2); // Xcrg_i p_header_data+=2; opj_read_bytes(p_header_data,&l_Ycrg_i,2); // Xcrg_i p_header_data+=2; } */ return OPJ_TRUE; } static void j2k_read_tlm(opj_j2k_t *j2k) { int len, Ztlm, Stlm, ST, SP, tile_tlm, i; long int Ttlm_i, Ptlm_i; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); /* Ltlm */ Ztlm = cio_read(cio, 1); /* Ztlm */ Stlm = cio_read(cio, 1); /* Stlm */ ST = ((Stlm >> 4) & 0x01) + ((Stlm >> 4) & 0x02); SP = (Stlm >> 6) & 0x01; tile_tlm = (len - 4) / ((SP + 1) * 2 + ST); for (i = 0; i < tile_tlm; i++) { Ttlm_i = cio_read(cio, ST); /* Ttlm_i */ Ptlm_i = cio_read(cio, SP ? 4 : 2); /* Ptlm_i */ } } /** * Reads a TLM marker (Tile Length Marker) * * @param p_header_data the data contained in the TLM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the TLM marker. * @param p_manager the user event manager. */ opj_bool j2k_read_tlm_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 l_Ztlm, l_Stlm, l_ST, l_SP, l_tot_num_tp, l_tot_num_tp_remaining, l_quotient, l_Ptlm_size; // preconditions assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); if (p_header_size < 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading TLM marker\n"); return OPJ_FALSE; } p_header_size -= 2; opj_read_bytes(p_header_data,&l_Ztlm,1); /* Ztlm */ ++p_header_data; opj_read_bytes(p_header_data,&l_Stlm,1); /* Stlm */ ++p_header_data; l_ST = ((l_Stlm >> 4) & 0x3); l_SP = (l_Stlm >> 6) & 0x1; l_Ptlm_size = (l_SP + 1) * 2; l_quotient = l_Ptlm_size + l_ST; l_tot_num_tp = p_header_size / l_quotient; l_tot_num_tp_remaining = p_header_size % l_quotient; if (l_tot_num_tp_remaining != 0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading TLM marker\n"); return OPJ_FALSE; } /* FIXME Do not care of this at the moment since only local variables are set here */ /* for (i = 0; i < l_tot_num_tp; ++i) { opj_read_bytes(p_header_data,&l_Ttlm_i,l_ST); // Ttlm_i p_header_data += l_ST; opj_read_bytes(p_header_data,&l_Ptlm_i,l_Ptlm_size); // Ptlm_i p_header_data += l_Ptlm_size; }*/ return OPJ_TRUE; } static void j2k_read_plm(opj_j2k_t *j2k) { int len, i, Zplm, Nplm, add, packet_len = 0; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); /* Lplm */ Zplm = cio_read(cio, 1); /* Zplm */ len -= 3; while (len > 0) { Nplm = cio_read(cio, 4); /* Nplm */ len -= 4; for (i = Nplm; i > 0; i--) { add = cio_read(cio, 1); len--; packet_len = (packet_len << 7) + add; /* Iplm_ij */ if ((add & 0x80) == 0) { /* New packet */ packet_len = 0; } if (len <= 0) break; } } } /** * Reads a PLM marker (Packet length, main header marker) * * @param p_header_data the data contained in the TLM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the TLM marker. * @param p_manager the user event manager. */ opj_bool j2k_read_plm_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { // preconditions assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); if (p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PLM marker\n"); return OPJ_FALSE; } /* Do not care of this at the moment since only local variables are set here */ /* opj_read_bytes(p_header_data,&l_Zplm,1); // Zplm ++p_header_data; --p_header_size; while (p_header_size > 0) { opj_read_bytes(p_header_data,&l_Nplm,1); // Nplm ++p_header_data; p_header_size -= (1+l_Nplm); if (p_header_size < 0) { opj_event_msg(p_manager, EVT_ERROR, "Error reading PLM marker\n"); return false; } for (i = 0; i < l_Nplm; ++i) { opj_read_bytes(p_header_data,&l_tmp,1); // Iplm_ij ++p_header_data; // take only the last seven bytes l_packet_len |= (l_tmp & 0x7f); if (l_tmp & 0x80) { l_packet_len <<= 7; } else { // store packet length and proceed to next packet l_packet_len = 0; } } if (l_packet_len != 0) { opj_event_msg(p_manager, EVT_ERROR, "Error reading PLM marker\n"); return false; } } */ return OPJ_TRUE; } static void j2k_read_plt(opj_j2k_t *j2k) { int len, i, Zplt, packet_len = 0, add; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); /* Lplt */ Zplt = cio_read(cio, 1); /* Zplt */ for (i = len - 3; i > 0; i--) { add = cio_read(cio, 1); packet_len = (packet_len << 7) + add; /* Iplt_i */ if ((add & 0x80) == 0) { /* New packet */ packet_len = 0; } } } /** * Reads a PLT marker (Packet length, tile-part header) * * @param p_header_data the data contained in the PLT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the PLT marker. * @param p_manager the user event manager. */ opj_bool j2k_read_plt_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 l_Zplt, l_tmp, l_packet_len = 0, i; // preconditions assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); if (p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PLM marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_Zplt,1); /* Zplt */ ++p_header_data; --p_header_size; for (i = 0; i < p_header_size; ++i) { opj_read_bytes(p_header_data,&l_tmp,1); /* Iplt_ij */ ++p_header_data; // take only the last seven bytes l_packet_len |= (l_tmp & 0x7f); if (l_tmp & 0x80) { l_packet_len <<= 7; } else { // store packet length and proceed to next packet l_packet_len = 0; } } if (l_packet_len != 0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PLM marker\n"); return OPJ_FALSE; } return OPJ_TRUE; } static void j2k_read_ppm(opj_j2k_t *j2k) { int len, Z_ppm, i, j; int N_ppm; opj_cp_t *cp = j2k->cp; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); cp->ppm = 1; Z_ppm = cio_read(cio, 1); /* Z_ppm */ len -= 3; while (len > 0) { if (cp->ppm_previous == 0) { N_ppm = cio_read(cio, 4); /* N_ppm */ len -= 4; } else { N_ppm = cp->ppm_previous; } j = cp->ppm_store; if (Z_ppm == 0) { /* First PPM marker */ cp->ppm_data = (unsigned char *) opj_malloc(N_ppm * sizeof(unsigned char)); cp->ppm_data_first = cp->ppm_data; cp->ppm_len = N_ppm; } else { /* NON-first PPM marker */ cp->ppm_data = (unsigned char *) opj_realloc(cp->ppm_data, (N_ppm + cp->ppm_store) * sizeof(unsigned char)); #ifdef USE_JPWL /* this memory allocation check could be done even in non-JPWL cases */ if (cp->correct) { if (!cp->ppm_data) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: failed memory allocation during PPM marker parsing (pos. %x)\n", cio_tell(cio)); if (!JPWL_ASSUME || JPWL_ASSUME) { opj_free(cp->ppm_data); opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } } } #endif cp->ppm_data_first = cp->ppm_data; cp->ppm_len = N_ppm + cp->ppm_store; } for (i = N_ppm; i > 0; i--) { /* Read packet header */ cp->ppm_data[j] = cio_read(cio, 1); j++; len--; if (len == 0) break; /* Case of non-finished packet header in present marker but finished in next one */ } cp->ppm_previous = i - 1; cp->ppm_store = j; } } /** * Reads a PPM marker (Packed packet headers, main header) * * @param p_header_data the data contained in the POC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the POC marker. * @param p_manager the user event manager. */ opj_bool j2k_read_ppm_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { opj_cp_v2_t *l_cp = 00; OPJ_UINT32 l_remaining_data, l_Z_ppm, l_N_ppm; // preconditions assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); if (p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PPM marker\n"); return OPJ_FALSE; } l_cp = &(p_j2k->m_cp); l_cp->ppm = 1; opj_read_bytes(p_header_data,&l_Z_ppm,1); /* Z_ppm */ ++p_header_data; --p_header_size; // First PPM marker if (l_Z_ppm == 0) { if (p_header_size < 4) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PPM marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm */ p_header_data+=4; p_header_size-=4; /* First PPM marker: Initialization */ l_cp->ppm_len = l_N_ppm; l_cp->ppm_data_size = 0; l_cp->ppm_buffer = (OPJ_BYTE *) opj_malloc(l_cp->ppm_len); if (l_cp->ppm_buffer == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n"); return OPJ_FALSE; } memset(l_cp->ppm_buffer,0,l_cp->ppm_len); l_cp->ppm_data = l_cp->ppm_buffer; } while (1) { if (l_cp->ppm_data_size == l_cp->ppm_len) { if (p_header_size >= 4) { // read a N_ppm opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm */ p_header_data+=4; p_header_size-=4; l_cp->ppm_len += l_N_ppm ; l_cp->ppm_buffer = (OPJ_BYTE *) opj_realloc(l_cp->ppm_buffer, l_cp->ppm_len); if (l_cp->ppm_buffer == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n"); return OPJ_FALSE; } memset(l_cp->ppm_buffer+l_cp->ppm_data_size,0,l_N_ppm); l_cp->ppm_data = l_cp->ppm_buffer; } else { return OPJ_FALSE; } } l_remaining_data = l_cp->ppm_len - l_cp->ppm_data_size; if (l_remaining_data <= p_header_size) { /* we must store less information than available in the packet */ memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , l_remaining_data); l_cp->ppm_data_size = l_cp->ppm_len; p_header_size -= l_remaining_data; p_header_data += l_remaining_data; } else { memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , p_header_size); l_cp->ppm_data_size += p_header_size; p_header_data += p_header_size; p_header_size = 0; break; } } return OPJ_TRUE; } /** * Reads a PPM marker (Packed packet headers, main header) * * @param p_header_data the data contained in the POC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the POC marker. * @param p_manager the user event manager. */ opj_bool j2k_read_ppm_v3 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { opj_cp_v2_t *l_cp = 00; OPJ_UINT32 l_remaining_data, l_Z_ppm, l_N_ppm; // preconditions assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); // Minimum size of PPM marker is equal to the size of Zppm element if (p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PPM marker\n"); return OPJ_FALSE; } l_cp = &(p_j2k->m_cp); l_cp->ppm = 1; opj_read_bytes(p_header_data,&l_Z_ppm,1); /* Z_ppm */ ++p_header_data; --p_header_size; // First PPM marker if (l_Z_ppm == 0) { // We need now at least the Nppm^0 element if (p_header_size < 4) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PPM marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_N_ppm,4); /* First N_ppm */ p_header_data+=4; p_header_size-=4; /* First PPM marker: Initialization */ l_cp->ppm_len = l_N_ppm; l_cp->ppm_data_read = 0; l_cp->ppm_data = (OPJ_BYTE *) opj_malloc(l_cp->ppm_len); if (l_cp->ppm_data == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n"); return OPJ_FALSE; } memset(l_cp->ppm_data,0,l_cp->ppm_len); l_cp->ppm_data_current = l_cp->ppm_data; //l_cp->ppm_data = l_cp->ppm_buffer; } else { if (p_header_size < 4) { opj_event_msg_v2(p_manager, EVT_WARNING, "Empty PPM marker\n"); return OPJ_TRUE; } else { // Uncompleted Ippm series in the previous PPM marker? if (l_cp->ppm_data_read < l_cp->ppm_len) { // Get the place where add the remaining Ippm series l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_data_read]); l_N_ppm = l_cp->ppm_len - l_cp->ppm_data_read; } else { opj_read_bytes(p_header_data,&l_N_ppm,4); /* First N_ppm */ p_header_data+=4; p_header_size-=4; // Increase the size of ppm_data to add the new Ippm series l_cp->ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm); // Keep the position of the place where concatenate the new series l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]); l_cp->ppm_len += l_N_ppm; } } } l_remaining_data = p_header_size; while (l_remaining_data >= l_N_ppm) { // read a complete Ippm series memcpy(l_cp->ppm_data_current, p_header_data, l_N_ppm); p_header_size -= l_N_ppm; p_header_data += l_N_ppm; l_cp->ppm_data_read += l_N_ppm; // Increase the number of data read if (p_header_size) { opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm^i */ p_header_data+=4; p_header_size-=4; } else { l_remaining_data = p_header_size; break; } l_remaining_data = p_header_size; // Next Ippm series is a complete series ? if (l_remaining_data > l_N_ppm) { // Increase the size of ppm_data to add the new Ippm series l_cp->ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm); // Keep the position of the place where concatenate the new series l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]); l_cp->ppm_len += l_N_ppm; } } // Need to read an incomplete Ippm series if (l_remaining_data) { l_cp->ppm_data = (OPJ_BYTE *) opj_realloc(l_cp->ppm_data, l_cp->ppm_len + l_N_ppm); // Keep the position of the place where concatenate the new series l_cp->ppm_data_current = &(l_cp->ppm_data[l_cp->ppm_len]); l_cp->ppm_len += l_N_ppm; // Read incomplete Ippm series memcpy(l_cp->ppm_data_current, p_header_data, l_remaining_data); p_header_size -= l_remaining_data; p_header_data += l_remaining_data; l_cp->ppm_data_read += l_remaining_data; // Increase the number of data read } #ifdef CLEAN_MSD if (l_cp->ppm_data_size == l_cp->ppm_len) { if (p_header_size >= 4) { // read a N_ppm opj_read_bytes(p_header_data,&l_N_ppm,4); /* N_ppm */ p_header_data+=4; p_header_size-=4; l_cp->ppm_len += l_N_ppm ; l_cp->ppm_buffer = (OPJ_BYTE *) opj_realloc(l_cp->ppm_buffer, l_cp->ppm_len); if (l_cp->ppm_buffer == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory reading ppm marker\n"); return OPJ_FALSE; } memset(l_cp->ppm_buffer+l_cp->ppm_data_size,0,l_N_ppm); l_cp->ppm_data = l_cp->ppm_buffer; } else { return OPJ_FALSE; } } l_remaining_data = l_cp->ppm_len - l_cp->ppm_data_size; if (l_remaining_data <= p_header_size) { /* we must store less information than available in the packet */ memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , l_remaining_data); l_cp->ppm_data_size = l_cp->ppm_len; p_header_size -= l_remaining_data; p_header_data += l_remaining_data; } else { memcpy(l_cp->ppm_buffer + l_cp->ppm_data_size , p_header_data , p_header_size); l_cp->ppm_data_size += p_header_size; p_header_data += p_header_size; p_header_size = 0; break; } } #endif return OPJ_TRUE; } static void j2k_read_ppt(opj_j2k_t *j2k) { int len, Z_ppt, i, j = 0; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = cp->tcps + j2k->curtileno; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); Z_ppt = cio_read(cio, 1); tcp->ppt = 1; if (Z_ppt == 0) { /* First PPT marker */ tcp->ppt_data = (unsigned char *) opj_malloc((len - 3) * sizeof(unsigned char)); tcp->ppt_data_first = tcp->ppt_data; tcp->ppt_store = 0; tcp->ppt_len = len - 3; } else { /* NON-first PPT marker */ tcp->ppt_data = (unsigned char *) opj_realloc(tcp->ppt_data, (len - 3 + tcp->ppt_store) * sizeof(unsigned char)); tcp->ppt_data_first = tcp->ppt_data; tcp->ppt_len = len - 3 + tcp->ppt_store; } j = tcp->ppt_store; for (i = len - 3; i > 0; i--) { tcp->ppt_data[j] = cio_read(cio, 1); j++; } tcp->ppt_store = j; } /** * Reads a PPT marker (Packed packet headers, tile-part header) * * @param p_header_data the data contained in the PPT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the PPT marker. * @param p_manager the user event manager. */ opj_bool j2k_read_ppt_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { opj_cp_v2_t *l_cp = 00; opj_tcp_v2_t *l_tcp = 00; OPJ_UINT32 l_Z_ppt; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); /* We need to have the Z_ppt element at minimum */ if (p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PPT marker\n"); return OPJ_FALSE; } l_cp = &(p_j2k->m_cp); if (l_cp->ppm){ opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading PPT marker: packet header have been previously found in the main header (PPM marker).\n"); return OPJ_FALSE; } l_tcp = &(l_cp->tcps[p_j2k->m_current_tile_number]); l_tcp->ppt = 1; opj_read_bytes(p_header_data,&l_Z_ppt,1); /* Z_ppt */ ++p_header_data; --p_header_size; /* Allocate buffer to read the packet header */ if (l_Z_ppt == 0) { /* First PPT marker */ l_tcp->ppt_data_size = 0; l_tcp->ppt_len = p_header_size; l_tcp->ppt_buffer = (OPJ_BYTE *) opj_calloc(l_tcp->ppt_len, sizeof(OPJ_BYTE) ); if (l_tcp->ppt_buffer == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory reading PPT marker\n"); return OPJ_FALSE; } l_tcp->ppt_data = l_tcp->ppt_buffer; /* memset(l_tcp->ppt_buffer,0,l_tcp->ppt_len); */ } else { l_tcp->ppt_len += p_header_size; l_tcp->ppt_buffer = (OPJ_BYTE *) opj_realloc(l_tcp->ppt_buffer,l_tcp->ppt_len); if (l_tcp->ppt_buffer == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Not enough memory reading PPT marker\n"); return OPJ_FALSE; } l_tcp->ppt_data = l_tcp->ppt_buffer; memset(l_tcp->ppt_buffer+l_tcp->ppt_data_size,0,p_header_size); } /* Read packet header from buffer */ memcpy(l_tcp->ppt_buffer+l_tcp->ppt_data_size,p_header_data,p_header_size); l_tcp->ppt_data_size += p_header_size; return OPJ_TRUE; } static void j2k_write_tlm(opj_j2k_t *j2k){ int lenp; opj_cio_t *cio = j2k->cio; j2k->tlm_start = cio_tell(cio); cio_write(cio, J2K_MS_TLM, 2);/* TLM */ lenp = 4 + (5*j2k->totnum_tp); cio_write(cio,lenp,2); /* Ltlm */ cio_write(cio, 0,1); /* Ztlm=0*/ cio_write(cio,80,1); /* Stlm ST=1(8bits-255 tiles max),SP=1(Ptlm=32bits) */ cio_skip(cio,5*j2k->totnum_tp); } static void j2k_write_sot(opj_j2k_t *j2k) { int lenp, len; opj_cio_t *cio = j2k->cio; j2k->sot_start = cio_tell(cio); cio_write(cio, J2K_MS_SOT, 2); /* SOT */ lenp = cio_tell(cio); cio_skip(cio, 2); /* Lsot (further) */ cio_write(cio, j2k->curtileno, 2); /* Isot */ cio_skip(cio, 4); /* Psot (further in j2k_write_sod) */ cio_write(cio, j2k->cur_tp_num , 1); /* TPsot */ cio_write(cio, j2k->cur_totnum_tp[j2k->curtileno], 1); /* TNsot */ len = cio_tell(cio) - lenp; cio_seek(cio, lenp); cio_write(cio, len, 2); /* Lsot */ cio_seek(cio, lenp + len); /* UniPG>> */ #ifdef USE_JPWL /* update markers struct */ j2k_add_marker(j2k->cstr_info, J2K_MS_SOT, j2k->sot_start, len + 2); #endif /* USE_JPWL */ /* <cstr_info && j2k->cur_tp_num==0){ j2k_add_tlmarker( j2k->curtileno, j2k->cstr_info, J2K_MS_SOT, lenp, len); } } static void j2k_read_sot(opj_j2k_t *j2k) { int len, tileno, totlen, partno, numparts, i; opj_tcp_t *tcp = NULL; char status = 0; opj_cp_t *cp = j2k->cp; opj_cio_t *cio = j2k->cio; len = cio_read(cio, 2); tileno = cio_read(cio, 2); #ifdef USE_JPWL if (j2k->cp->correct) { static int backup_tileno = 0; /* tileno is negative or larger than the number of tiles!!! */ if ((tileno < 0) || (tileno > (cp->tw * cp->th))) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: bad tile number (%d out of a maximum of %d)\n", tileno, (cp->tw * cp->th)); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } /* we try to correct */ tileno = backup_tileno; opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n" "- setting tile number to %d\n", tileno); } /* keep your private count of tiles */ backup_tileno++; }; #endif /* USE_JPWL */ if (cp->tileno_size == 0) { cp->tileno[cp->tileno_size] = tileno; cp->tileno_size++; } else { i = 0; while (i < cp->tileno_size && status == 0) { status = cp->tileno[i] == tileno ? 1 : 0; i++; } if (status == 0) { cp->tileno[cp->tileno_size] = tileno; cp->tileno_size++; } } totlen = cio_read(cio, 4); #ifdef USE_JPWL if (j2k->cp->correct) { /* totlen is negative or larger than the bytes left!!! */ if ((totlen < 0) || (totlen > (cio_numbytesleft(cio) + 8))) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: bad tile byte size (%d bytes against %d bytes left)\n", totlen, cio_numbytesleft(cio) + 8); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } /* we try to correct */ totlen = 0; opj_event_msg(j2k->cinfo, EVT_WARNING, "- trying to adjust this\n" "- setting Psot to %d => assuming it is the last tile\n", totlen); } }; #endif /* USE_JPWL */ if (!totlen) totlen = cio_numbytesleft(cio) + 8; partno = cio_read(cio, 1); numparts = cio_read(cio, 1); if (partno >= numparts) { opj_event_msg(j2k->cinfo, EVT_WARNING, "SOT marker inconsistency in tile %d: tile-part index greater (%d) than number of tile-parts (%d)\n", tileno, partno, numparts); numparts = partno+1; } j2k->curtileno = tileno; j2k->cur_tp_num = partno; j2k->eot = cio_getbp(cio) - 12 + totlen; j2k->state = J2K_STATE_TPH; tcp = &cp->tcps[j2k->curtileno]; /* Index */ if (j2k->cstr_info) { if (tcp->first) { if (tileno == 0) j2k->cstr_info->main_head_end = cio_tell(cio) - 13; j2k->cstr_info->tile[tileno].tileno = tileno; j2k->cstr_info->tile[tileno].start_pos = cio_tell(cio) - 12; j2k->cstr_info->tile[tileno].end_pos = j2k->cstr_info->tile[tileno].start_pos + totlen - 1; } else { j2k->cstr_info->tile[tileno].end_pos += totlen; } j2k->cstr_info->tile[tileno].num_tps = numparts; if (numparts) j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_realloc(j2k->cstr_info->tile[tileno].tp, numparts * sizeof(opj_tp_info_t)); else j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_realloc(j2k->cstr_info->tile[tileno].tp, 10 * sizeof(opj_tp_info_t)); // Fixme (10) j2k->cstr_info->tile[tileno].tp[partno].tp_start_pos = cio_tell(cio) - 12; j2k->cstr_info->tile[tileno].tp[partno].tp_end_pos = j2k->cstr_info->tile[tileno].tp[partno].tp_start_pos + totlen - 1; } if (tcp->first == 1) { /* Initialization PPT */ opj_tccp_t *tmp = tcp->tccps; memcpy(tcp, j2k->default_tcp, sizeof(opj_tcp_t)); tcp->ppt = 0; tcp->ppt_data = NULL; tcp->ppt_data_first = NULL; tcp->tccps = tmp; for (i = 0; i < j2k->image->numcomps; i++) { tcp->tccps[i] = j2k->default_tcp->tccps[i]; } cp->tcps[j2k->curtileno].first = 0; } } /** * Reads a PPT marker (Packed packet headers, tile-part header) * * @param p_header_data the data contained in the PPT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the PPT marker. * @param p_manager the user event manager. */ opj_bool j2k_read_sot_v2 ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { opj_cp_v2_t *l_cp = 00; opj_tcp_v2_t *l_tcp = 00; OPJ_UINT32 l_tot_len, l_num_parts = 0; OPJ_UINT32 l_current_part; OPJ_UINT32 l_tile_x,l_tile_y; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); /* Size of this marker is fixed = 12 (we have already read marker and its size)*/ if (p_header_size != 8) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading SOT marker\n"); return OPJ_FALSE; } l_cp = &(p_j2k->m_cp); opj_read_bytes(p_header_data,&(p_j2k->m_current_tile_number),2); /* Isot */ p_header_data+=2; l_tcp = &l_cp->tcps[p_j2k->m_current_tile_number]; l_tile_x = p_j2k->m_current_tile_number % l_cp->tw; l_tile_y = p_j2k->m_current_tile_number / l_cp->tw; #ifdef USE_JPWL if (l_cp->correct) { int tileno = p_j2k->m_current_tile_number; static int backup_tileno = 0; /* tileno is negative or larger than the number of tiles!!! */ if ((tileno < 0) || (tileno > (l_cp->tw * l_cp->th))) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: bad tile number (%d out of a maximum of %d)\n", tileno, (l_cp->tw * l_cp->th)); if (!JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } /* we try to correct */ tileno = backup_tileno; opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust this\n" "- setting tile number to %d\n", tileno); } /* keep your private count of tiles */ backup_tileno++; }; #endif /* USE_JPWL */ /* look for the tile in the list of already processed tile (in parts). */ /* Optimization possible here with a more complex data structure and with the removing of tiles */ /* since the time taken by this function can only grow at the time */ opj_read_bytes(p_header_data,&l_tot_len,4); /* Psot */ p_header_data+=4; #ifdef USE_JPWL if (l_cp->correct) { /* totlen is negative or larger than the bytes left!!! */ if ((l_tot_len < 0) || (l_tot_len > p_header_size ) ) { /* FIXME it seems correct; for info in V1 -> (p_stream_numbytesleft(p_stream) + 8))) { */ opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: bad tile byte size (%d bytes against %d bytes left)\n", l_tot_len, p_header_size ); /* FIXME it seems correct; for info in V1 -> p_stream_numbytesleft(p_stream) + 8); */ if (!JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } /* we try to correct */ l_tot_len = 0; opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust this\n" "- setting Psot to %d => assuming it is the last tile\n", l_tot_len); } }; #endif /* USE_JPWL */ /* Ref A.4.2: Psot could be equal zero if it is the last tile-part of the codestream.*/ if (!l_tot_len) { opj_event_msg_v2(p_manager, EVT_INFO, "Psot value of the current tile-part is equal to zero, " "we assuming it is the last tile-part of the codestream.\n"); p_j2k->m_specific_param.m_decoder.m_last_tile_part = 1; } opj_read_bytes(p_header_data,&l_current_part ,1); /* TPsot */ ++p_header_data; opj_read_bytes(p_header_data,&l_num_parts ,1); /* TNsot */ ++p_header_data; if (l_num_parts != 0) { /* Number of tile-part header is provided by this tile-part header */ /* Useful to manage the case of textGBR.jp2 file because two values of TNSot are allowed: the correct numbers of * tile-parts for that tile and zero (A.4.2 of 15444-1 : 2002). */ if (l_tcp->m_nb_tile_parts) { if (l_current_part >= l_tcp->m_nb_tile_parts){ opj_event_msg_v2(p_manager, EVT_ERROR, "In SOT marker, TPSot (%d) is not valid regards to the current " "number of tile-part (%d), giving up\n", l_current_part, l_tcp->m_nb_tile_parts ); p_j2k->m_specific_param.m_decoder.m_last_tile_part = 1; return OPJ_FALSE; } } l_tcp->m_nb_tile_parts = l_num_parts; } /* If know the number of tile part header we will check if we didn't read the last*/ if (l_tcp->m_nb_tile_parts) { if (l_tcp->m_nb_tile_parts == (l_current_part + 1)) { p_j2k->m_specific_param.m_decoder.m_can_decode = 1; /* Process the last tile-part header*/ } } if (!p_j2k->m_specific_param.m_decoder.m_last_tile_part){ /* Keep the size of data to skip after this marker */ p_j2k->m_specific_param.m_decoder.m_sot_length = l_tot_len - 12; /* SOT_marker_size = 12 */ } else { /* FIXME: need to be computed from the number of bytes remaining in the codestream */ p_j2k->m_specific_param.m_decoder.m_sot_length = 0; } p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPH; /* Check if the current tile is outside the area we want decode (in tile index)*/ p_j2k->m_specific_param.m_decoder.m_skip_data = (l_tile_x < p_j2k->m_specific_param.m_decoder.m_start_tile_x) || (l_tile_x >= p_j2k->m_specific_param.m_decoder.m_end_tile_x) || (l_tile_y < p_j2k->m_specific_param.m_decoder.m_start_tile_y) || (l_tile_y >= p_j2k->m_specific_param.m_decoder.m_end_tile_y); /* Index */ /* FIXME move this onto a separate method to call before reading any SOT, remove part about main_end header, use a index struct inside p_j2k */ /* if (p_j2k->cstr_info) { if (l_tcp->first) { if (tileno == 0) { p_j2k->cstr_info->main_head_end = p_stream_tell(p_stream) - 13; } p_j2k->cstr_info->tile[tileno].tileno = tileno; p_j2k->cstr_info->tile[tileno].start_pos = p_stream_tell(p_stream) - 12; p_j2k->cstr_info->tile[tileno].end_pos = p_j2k->cstr_info->tile[tileno].start_pos + totlen - 1; p_j2k->cstr_info->tile[tileno].num_tps = numparts; if (numparts) { p_j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(numparts * sizeof(opj_tp_info_t)); } else { p_j2k->cstr_info->tile[tileno].tp = (opj_tp_info_t *) opj_malloc(10 * sizeof(opj_tp_info_t)); // Fixme (10) } } else { p_j2k->cstr_info->tile[tileno].end_pos += totlen; } p_j2k->cstr_info->tile[tileno].tp[partno].tp_start_pos = p_stream_tell(p_stream) - 12; p_j2k->cstr_info->tile[tileno].tp[partno].tp_end_pos = p_j2k->cstr_info->tile[tileno].tp[partno].tp_start_pos + totlen - 1; }*/ return OPJ_TRUE; } static void j2k_write_sod(opj_j2k_t *j2k, void *tile_coder) { int l, layno; int totlen; opj_tcp_t *tcp = NULL; opj_codestream_info_t *cstr_info = NULL; opj_tcd_t *tcd = (opj_tcd_t*)tile_coder; /* cast is needed because of conflicts in header inclusions */ opj_cp_t *cp = j2k->cp; opj_cio_t *cio = j2k->cio; tcd->tp_num = j2k->tp_num ; tcd->cur_tp_num = j2k->cur_tp_num; cio_write(cio, J2K_MS_SOD, 2); if( j2k->cstr_info && j2k->cur_tp_num==0){ j2k_add_tlmarker( j2k->curtileno, j2k->cstr_info, J2K_MS_SOD, cio_tell(cio), 0); } if (j2k->curtileno == 0) { j2k->sod_start = cio_tell(cio) + j2k->pos_correction; } /* INDEX >> */ cstr_info = j2k->cstr_info; if (cstr_info) { if (!j2k->cur_tp_num ) { cstr_info->tile[j2k->curtileno].end_header = cio_tell(cio) + j2k->pos_correction - 1; j2k->cstr_info->tile[j2k->curtileno].tileno = j2k->curtileno; } else{ if(cstr_info->tile[j2k->curtileno].packet[cstr_info->packno - 1].end_pos < cio_tell(cio)) cstr_info->tile[j2k->curtileno].packet[cstr_info->packno].start_pos = cio_tell(cio); } /* UniPG>> */ #ifdef USE_JPWL /* update markers struct */ j2k_add_marker(j2k->cstr_info, J2K_MS_SOD, j2k->sod_start, 2); #endif /* USE_JPWL */ /* <tcps[j2k->curtileno]; for (layno = 0; layno < tcp->numlayers; layno++) { if (tcp->rates[layno]>(j2k->sod_start / (cp->th * cp->tw))) { tcp->rates[layno]-=(j2k->sod_start / (cp->th * cp->tw)); } else if (tcp->rates[layno]) { tcp->rates[layno]=1; } } if(j2k->cur_tp_num == 0){ tcd->tcd_image->tiles->packno = 0; if(cstr_info) cstr_info->packno = 0; } l = tcd_encode_tile(tcd, j2k->curtileno, cio_getbp(cio), cio_numbytesleft(cio) - 2, cstr_info); /* Writing Psot in SOT marker */ totlen = cio_tell(cio) + l - j2k->sot_start; cio_seek(cio, j2k->sot_start + 6); cio_write(cio, totlen, 4); cio_seek(cio, j2k->sot_start + totlen); /* Writing Ttlm and Ptlm in TLM marker */ if(cp->cinema){ cio_seek(cio, j2k->tlm_start + 6 + (5*j2k->cur_tp_num)); cio_write(cio, j2k->curtileno, 1); cio_write(cio, totlen, 4); } cio_seek(cio, j2k->sot_start + totlen); } static void j2k_read_sod(opj_j2k_t *j2k) { int len, truncate = 0, i; unsigned char *data = NULL, *data_ptr = NULL; opj_cio_t *cio = j2k->cio; int curtileno = j2k->curtileno; /* Index */ if (j2k->cstr_info) { j2k->cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_header = cio_tell(cio) + j2k->pos_correction - 1; if (j2k->cur_tp_num == 0) j2k->cstr_info->tile[j2k->curtileno].end_header = cio_tell(cio) + j2k->pos_correction - 1; j2k->cstr_info->packno = 0; } len = int_min(j2k->eot - cio_getbp(cio), cio_numbytesleft(cio) + 1); if (len == cio_numbytesleft(cio) + 1) { truncate = 1; /* Case of a truncate codestream */ } data = j2k->tile_data[curtileno]; data = (unsigned char*) opj_realloc(data, (j2k->tile_len[curtileno] + len) * sizeof(unsigned char)); data_ptr = data + j2k->tile_len[curtileno]; for (i = 0; i < len; i++) { data_ptr[i] = cio_read(cio, 1); } j2k->tile_len[curtileno] += len; j2k->tile_data[curtileno] = data; if (!truncate) { j2k->state = J2K_STATE_TPHSOT; } else { j2k->state = J2K_STATE_NEOC; /* RAJOUTE !! */ } j2k->cur_tp_num++; } /** * Reads a SOD marker (Start Of Data) * * @param p_header_data the data contained in the SOD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the SOD marker. * @param p_manager the user event manager. */ opj_bool j2k_read_sod_v2 ( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager ) { OPJ_UINT32 l_current_read_size; opj_codestream_index_t * l_cstr_index = 00; OPJ_BYTE ** l_current_data = 00; opj_tcp_v2_t * l_tcp = 00; OPJ_UINT32 * l_tile_len = 00; /* preconditions */ assert(p_j2k != 00); assert(p_manager != 00); assert(p_stream != 00); l_tcp = &(p_j2k->m_cp.tcps[p_j2k->m_current_tile_number]); if (p_j2k->m_specific_param.m_decoder.m_last_tile_part) p_j2k->m_specific_param.m_decoder.m_sot_length = opj_stream_get_number_byte_left(p_stream) - 2; else p_j2k->m_specific_param.m_decoder.m_sot_length -= 2; l_current_data = &(l_tcp->m_data); l_tile_len = &l_tcp->m_data_size; if (! *l_current_data) { *l_current_data = (OPJ_BYTE*) opj_malloc/*FIXME V2 -> my_opj_malloc*/(p_j2k->m_specific_param.m_decoder.m_sot_length); } else { *l_current_data = (OPJ_BYTE*) opj_realloc/*FIXME V2 -> my_opj_realloc*/(*l_current_data, *l_tile_len + p_j2k->m_specific_param.m_decoder.m_sot_length); } if (*l_current_data == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile\n"); return OPJ_FALSE; } #ifdef TODO_MSD /* FIXME */ l_cstr_index = p_j2k->cstr_index; /* Index */ if (l_cstr_index) { OPJ_SIZE_T l_current_pos = opj_stream_tell(p_stream)-1; l_cstr_index->tile_index[p_j2k->m_current_tile_number].tp_index[p_j2k->m_specific_param.m_encoder.m_current_tile_part_number].tp_end_header = l_current_pos; l_cstr_index->packno = 0; } #endif l_current_read_size = opj_stream_read_data( p_stream, *l_current_data + *l_tile_len, p_j2k->m_specific_param.m_decoder.m_sot_length, p_manager); if (l_current_read_size != p_j2k->m_specific_param.m_decoder.m_sot_length) { p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_NEOC; } else { p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPHSOT; } *l_tile_len += l_current_read_size; return OPJ_TRUE; } static void j2k_write_rgn(opj_j2k_t *j2k, int compno, int tileno) { opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = &cp->tcps[tileno]; opj_cio_t *cio = j2k->cio; int numcomps = j2k->image->numcomps; cio_write(cio, J2K_MS_RGN, 2); /* RGN */ cio_write(cio, numcomps <= 256 ? 5 : 6, 2); /* Lrgn */ cio_write(cio, compno, numcomps <= 256 ? 1 : 2); /* Crgn */ cio_write(cio, 0, 1); /* Srgn */ cio_write(cio, tcp->tccps[compno].roishift, 1); /* SPrgn */ } static void j2k_read_rgn(opj_j2k_t *j2k) { int len, compno, roisty; opj_cp_t *cp = j2k->cp; opj_tcp_t *tcp = j2k->state == J2K_STATE_TPH ? &cp->tcps[j2k->curtileno] : j2k->default_tcp; opj_cio_t *cio = j2k->cio; int numcomps = j2k->image->numcomps; len = cio_read(cio, 2); /* Lrgn */ compno = cio_read(cio, numcomps <= 256 ? 1 : 2); /* Crgn */ roisty = cio_read(cio, 1); /* Srgn */ #ifdef USE_JPWL if (j2k->cp->correct) { /* totlen is negative or larger than the bytes left!!! */ if (compno >= numcomps) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: bad component number in RGN (%d when there are only %d)\n", compno, numcomps); if (!JPWL_ASSUME || JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: giving up\n"); return; } } }; #endif /* USE_JPWL */ tcp->tccps[compno].roishift = cio_read(cio, 1); /* SPrgn */ } static void j2k_write_eoc(opj_j2k_t *j2k) { opj_cio_t *cio = j2k->cio; /* opj_event_msg(j2k->cinfo, "%.8x: EOC\n", cio_tell(cio) + j2k->pos_correction); */ cio_write(cio, J2K_MS_EOC, 2); /* UniPG>> */ #ifdef USE_JPWL /* update markers struct */ j2k_add_marker(j2k->cstr_info, J2K_MS_EOC, cio_tell(cio) - 2, 2); #endif /* USE_JPWL */ /* <m_image; l_nb_comp = l_image->numcomps; if (l_nb_comp <= 256) { l_comp_room = 1; } else { l_comp_room = 2; } if (p_header_size != 2 + l_comp_room) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading RGN marker\n"); return OPJ_FALSE; } l_cp = &(p_j2k->m_cp); l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH) ? &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; opj_read_bytes(p_header_data,&l_comp_no,l_comp_room); /* Crgn */ p_header_data+=l_comp_room; opj_read_bytes(p_header_data,&l_roi_sty,1); /* Srgn */ ++p_header_data; #ifdef USE_JPWL if (l_cp->correct) { /* totlen is negative or larger than the bytes left!!! */ if (l_comp_room >= l_nb_comp) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: bad component number in RGN (%d when there are only %d)\n", l_comp_room, l_nb_comp); if (!JPWL_ASSUME || JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } } }; #endif /* USE_JPWL */ opj_read_bytes(p_header_data,(OPJ_UINT32 *) (&(l_tcp->tccps[l_comp_no].roishift)),1); /* SPrgn */ ++p_header_data; return OPJ_TRUE; } static void j2k_read_eoc(opj_j2k_t *j2k) { int i, tileno; opj_bool success; /* if packets should be decoded */ if (j2k->cp->limit_decoding != DECODE_ALL_BUT_PACKETS) { opj_tcd_t *tcd = tcd_create(j2k->cinfo); tcd_malloc_decode(tcd, j2k->image, j2k->cp); for (i = 0; i < j2k->cp->tileno_size; i++) { tcd_malloc_decode_tile(tcd, j2k->image, j2k->cp, i, j2k->cstr_info); tileno = j2k->cp->tileno[i]; success = tcd_decode_tile(tcd, j2k->tile_data[tileno], j2k->tile_len[tileno], tileno, j2k->cstr_info); opj_free(j2k->tile_data[tileno]); j2k->tile_data[tileno] = NULL; tcd_free_decode_tile(tcd, i); if (success == OPJ_FALSE) { j2k->state |= J2K_STATE_ERR; break; } } tcd_free_decode(tcd); tcd_destroy(tcd); } /* if packets should not be decoded */ else { for (i = 0; i < j2k->cp->tileno_size; i++) { tileno = j2k->cp->tileno[i]; opj_free(j2k->tile_data[tileno]); j2k->tile_data[tileno] = NULL; } } if (j2k->state & J2K_STATE_ERR) j2k->state = J2K_STATE_MT + J2K_STATE_ERR; else j2k->state = J2K_STATE_MT; } /** * Reads a EOC marker (End Of Codestream) * * @param p_header_data the data contained in the SOD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the SOD marker. * @param p_manager the user event manager. */ opj_bool j2k_read_eoc_v2 ( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager ) { OPJ_UINT32 i; opj_tcd_v2_t * l_tcd = 00; OPJ_UINT32 l_nb_tiles; opj_tcp_v2_t * l_tcp = 00; opj_bool l_success; /* preconditions */ assert(p_j2k != 00); assert(p_manager != 00); assert(p_stream != 00); l_nb_tiles = p_j2k->m_cp.th * p_j2k->m_cp.tw; l_tcp = p_j2k->m_cp.tcps; l_tcd = tcd_create_v2(OPJ_TRUE); if (l_tcd == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n"); return OPJ_FALSE; } for (i = 0; i < l_nb_tiles; ++i) { if (l_tcp->m_data) { if (! tcd_init_decode_tile(l_tcd, i)) { tcd_destroy_v2(l_tcd); opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n"); return OPJ_FALSE; } l_success = tcd_decode_tile_v2(l_tcd, l_tcp->m_data, l_tcp->m_data_size, i, p_j2k->cstr_index); /* cleanup */ if (! l_success) { p_j2k->m_specific_param.m_decoder.m_state |= J2K_STATE_ERR; break; } } j2k_tcp_destroy(l_tcp); ++l_tcp; } tcd_destroy_v2(l_tcd); return OPJ_TRUE; } typedef struct opj_dec_mstabent { /** marker value */ int id; /** value of the state when the marker can appear */ int states; /** action linked to the marker */ void (*handler) (opj_j2k_t *j2k); } opj_dec_mstabent_t; opj_dec_mstabent_t j2k_dec_mstab[] = { {J2K_MS_SOC, J2K_STATE_MHSOC, j2k_read_soc}, {J2K_MS_SOT, J2K_STATE_MH | J2K_STATE_TPHSOT, j2k_read_sot}, {J2K_MS_SOD, J2K_STATE_TPH, j2k_read_sod}, {J2K_MS_EOC, J2K_STATE_TPHSOT, j2k_read_eoc}, {J2K_MS_SIZ, J2K_STATE_MHSIZ, j2k_read_siz}, {J2K_MS_COD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_cod}, {J2K_MS_COC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_coc}, {J2K_MS_RGN, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_rgn}, {J2K_MS_QCD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcd}, {J2K_MS_QCC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_qcc}, {J2K_MS_POC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_poc}, {J2K_MS_TLM, J2K_STATE_MH, j2k_read_tlm}, {J2K_MS_PLM, J2K_STATE_MH, j2k_read_plm}, {J2K_MS_PLT, J2K_STATE_TPH, j2k_read_plt}, {J2K_MS_PPM, J2K_STATE_MH, j2k_read_ppm}, {J2K_MS_PPT, J2K_STATE_TPH, j2k_read_ppt}, {J2K_MS_SOP, 0, 0}, {J2K_MS_CRG, J2K_STATE_MH, j2k_read_crg}, {J2K_MS_COM, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_com}, #ifdef USE_JPWL {J2K_MS_EPC, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_epc}, {J2K_MS_EPB, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_epb}, {J2K_MS_ESD, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_esd}, {J2K_MS_RED, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_red}, #endif /* USE_JPWL */ #ifdef USE_JPSEC {J2K_MS_SEC, J2K_STATE_MH, j2k_read_sec}, {J2K_MS_INSEC, 0, j2k_read_insec}, #endif /* USE_JPSEC */ {0, J2K_STATE_MH | J2K_STATE_TPH, j2k_read_unk} }; static void j2k_read_unk(opj_j2k_t *j2k) { opj_event_msg(j2k->cinfo, EVT_WARNING, "Unknown marker\n"); #ifdef USE_JPWL if (j2k->cp->correct) { int m = 0, id, i; int min_id = 0, min_dist = 17, cur_dist = 0, tmp_id; cio_seek(j2k->cio, cio_tell(j2k->cio) - 2); id = cio_read(j2k->cio, 2); opj_event_msg(j2k->cinfo, EVT_ERROR, "JPWL: really don't know this marker %x\n", id); if (!JPWL_ASSUME) { opj_event_msg(j2k->cinfo, EVT_ERROR, "- possible synch loss due to uncorrectable codestream errors => giving up\n"); return; } /* OK, activate this at your own risk!!! */ /* we look for the marker at the minimum hamming distance from this */ while (j2k_dec_mstab[m].id) { /* 1's where they differ */ tmp_id = j2k_dec_mstab[m].id ^ id; /* compute the hamming distance between our id and the current */ cur_dist = 0; for (i = 0; i < 16; i++) { if ((tmp_id >> i) & 0x0001) { cur_dist++; } } /* if current distance is smaller, set the minimum */ if (cur_dist < min_dist) { min_dist = cur_dist; min_id = j2k_dec_mstab[m].id; } /* jump to the next marker */ m++; } /* do we substitute the marker? */ if (min_dist < JPWL_MAXIMUM_HAMMING) { opj_event_msg(j2k->cinfo, EVT_ERROR, "- marker %x is at distance %d from the read %x\n", min_id, min_dist, id); opj_event_msg(j2k->cinfo, EVT_ERROR, "- trying to substitute in place and crossing fingers!\n"); cio_seek(j2k->cio, cio_tell(j2k->cio) - 2); cio_write(j2k->cio, min_id, 2); /* rewind */ cio_seek(j2k->cio, cio_tell(j2k->cio) - 2); } }; #endif /* USE_JPWL */ } /** * Reads an unknown marker * * @param p_stream the stream object to read from. * @param p_j2k the jpeg2000 codec. * @param p_manager the user event manager. * * @return true if the marker could be deduced. */ opj_bool j2k_read_unk_v2 ( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, OPJ_UINT32 *output_marker, struct opj_event_mgr * p_manager ) { OPJ_UINT32 l_unknown_marker; const opj_dec_memory_marker_handler_t * l_marker_handler; OPJ_UINT32 l_size_unk = 2; // preconditions assert(p_j2k != 00); assert(p_manager != 00); assert(p_stream != 00); opj_event_msg_v2(p_manager, EVT_WARNING, "Unknown marker\n"); while(1) { // Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } // read 2 bytes as the new marker ID opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_unknown_marker,2); if (!(l_unknown_marker < 0xff00)) { // Get the marker handler from the marker ID l_marker_handler = j2k_get_marker_handler(l_unknown_marker); if (!(p_j2k->m_specific_param.m_decoder.m_state & l_marker_handler->states)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Marker is not compliant with its position\n"); return OPJ_FALSE; } else { if (l_marker_handler->id != J2K_MS_UNK) { /* Add the marker to the codestream index*/ if (l_marker_handler->id != J2K_MS_SOT) j2k_add_mhmarker_v2(p_j2k->cstr_index, J2K_MS_UNK, (OPJ_UINT32) opj_stream_tell(p_stream) - l_size_unk, l_size_unk); break; /* next marker is known and well located */ } else l_size_unk += 2; } } } *output_marker = l_marker_handler->id ; return OPJ_TRUE; } /** Read the lookup table containing all the marker, status and action @param id Marker value */ static opj_dec_mstabent_t *j2k_dec_mstab_lookup(int id) { opj_dec_mstabent_t *e; for (e = j2k_dec_mstab; e->id != 0; e++) { if (e->id == id) { break; } } return e; } /** * Reads a MCT marker (Multiple Component Transform) * * @param p_header_data the data contained in the MCT box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the MCT marker. * @param p_manager the user event manager. */ opj_bool j2k_read_mct ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 i; opj_tcp_v2_t *l_tcp = 00; OPJ_UINT32 l_tmp; OPJ_UINT32 l_indix; opj_mct_data_t * l_mct_data; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); l_tcp = p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH ? &p_j2k->m_cp.tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; if (p_header_size < 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n"); return OPJ_FALSE; } /* first marker */ opj_read_bytes(p_header_data,&l_tmp,2); /* Zmct */ p_header_data += 2; if (l_tmp != 0) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge mct data within multiple MCT records\n"); return OPJ_TRUE; } if(p_header_size <= 6) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n"); return OPJ_FALSE; } /* Imct -> no need for other values, take the first, type is double with decorrelation x0000 1101 0000 0000*/ opj_read_bytes(p_header_data,&l_tmp,2); /* Imct */ p_header_data += 2; l_indix = l_tmp & 0xff; l_mct_data = l_tcp->m_mct_records; for (i=0;im_nb_mct_records;++i) { if (l_mct_data->m_index == l_indix) { break; } ++l_mct_data; } /* NOT FOUND */ if (i == l_tcp->m_nb_mct_records) { if (l_tcp->m_nb_mct_records == l_tcp->m_nb_max_mct_records) { l_tcp->m_nb_max_mct_records += J2K_MCT_DEFAULT_NB_RECORDS; l_tcp->m_mct_records = (opj_mct_data_t*)opj_realloc(l_tcp->m_mct_records,l_tcp->m_nb_max_mct_records * sizeof(opj_mct_data_t)); if(! l_tcp->m_mct_records) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n"); return OPJ_FALSE; } l_mct_data = l_tcp->m_mct_records + l_tcp->m_nb_mct_records; memset(l_mct_data ,0,(l_tcp->m_nb_max_mct_records - l_tcp->m_nb_mct_records) * sizeof(opj_mct_data_t)); } l_mct_data = l_tcp->m_mct_records + l_tcp->m_nb_mct_records; } if (l_mct_data->m_data) { opj_free(l_mct_data->m_data); l_mct_data->m_data = 00; } l_mct_data->m_index = l_indix; l_mct_data->m_array_type = (J2K_MCT_ARRAY_TYPE)((l_tmp >> 8) & 3); l_mct_data->m_element_type = (J2K_MCT_ELEMENT_TYPE)((l_tmp >> 10) & 3); opj_read_bytes(p_header_data,&l_tmp,2); /* Ymct */ p_header_data+=2; if (l_tmp != 0) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge multiple MCT markers\n"); return OPJ_TRUE; } p_header_size -= 6; l_mct_data->m_data = (OPJ_BYTE*)opj_malloc(p_header_size); if (! l_mct_data->m_data) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCT marker\n"); return OPJ_FALSE; } memcpy(l_mct_data->m_data,p_header_data,p_header_size); l_mct_data->m_data_size = p_header_size; ++l_tcp->m_nb_mct_records; return OPJ_TRUE; } /** * Reads a MCC marker (Multiple Component Collection) * * @param p_header_data the data contained in the MCC box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the MCC marker. * @param p_manager the user event manager. */ opj_bool j2k_read_mcc ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 i,j; OPJ_UINT32 l_tmp; OPJ_UINT32 l_indix; opj_tcp_v2_t * l_tcp; opj_simple_mcc_decorrelation_data_t * l_mcc_record; opj_mct_data_t * l_mct_data; OPJ_UINT32 l_nb_collections; OPJ_UINT32 l_nb_comps; OPJ_UINT32 l_nb_bytes_by_comp; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_tcp = p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH ? &p_j2k->m_cp.tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; if (p_header_size < 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } /* first marker */ opj_read_bytes(p_header_data,&l_tmp,2); /* Zmcc */ p_header_data += 2; if (l_tmp != 0) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge multiple data spanning\n"); return OPJ_TRUE; } if (p_header_size < 7) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_indix,1); /* Imcc -> no need for other values, take the first */ ++p_header_data; l_mcc_record = l_tcp->m_mcc_records; for(i=0;im_nb_mcc_records;++i) { if (l_mcc_record->m_index == l_indix) { break; } ++l_mcc_record; } /** NOT FOUND */ if (i == l_tcp->m_nb_mcc_records) { if (l_tcp->m_nb_mcc_records == l_tcp->m_nb_max_mcc_records) { l_tcp->m_nb_max_mcc_records += J2K_MCC_DEFAULT_NB_RECORDS; l_tcp->m_mcc_records = (opj_simple_mcc_decorrelation_data_t*) opj_realloc(l_tcp->m_mcc_records,l_tcp->m_nb_max_mcc_records * sizeof(opj_simple_mcc_decorrelation_data_t)); if (! l_tcp->m_mcc_records) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } l_mcc_record = l_tcp->m_mcc_records + l_tcp->m_nb_mcc_records; memset(l_mcc_record,0,(l_tcp->m_nb_max_mcc_records-l_tcp->m_nb_mcc_records) * sizeof(opj_simple_mcc_decorrelation_data_t)); } l_mcc_record = l_tcp->m_mcc_records + l_tcp->m_nb_mcc_records; } l_mcc_record->m_index = l_indix; /* only one marker atm */ opj_read_bytes(p_header_data,&l_tmp,2); /* Ymcc */ p_header_data+=2; if (l_tmp != 0) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge multiple data spanning\n"); return OPJ_TRUE; } opj_read_bytes(p_header_data,&l_nb_collections,2); /* Qmcc -> number of collections -> 1 */ p_header_data+=2; if (l_nb_collections > 1) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge multiple collections\n"); return OPJ_TRUE; } p_header_size -= 7; for (i=0;i array based decorrelation */ ++p_header_data; if (l_tmp != 1) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge collections other than array decorrelation\n"); return OPJ_TRUE; } opj_read_bytes(p_header_data,&l_nb_comps,2); p_header_data+=2; p_header_size-=3; l_nb_bytes_by_comp = 1 + (l_nb_comps>>15); l_mcc_record->m_nb_comps = l_nb_comps & 0x7fff; if (p_header_size < (l_nb_bytes_by_comp * l_mcc_record->m_nb_comps + 2)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } p_header_size -= (l_nb_bytes_by_comp * l_mcc_record->m_nb_comps + 2); for (j=0;jm_nb_comps;++j) { opj_read_bytes(p_header_data,&l_tmp,l_nb_bytes_by_comp); /* Cmccij Component offset*/ p_header_data+=l_nb_bytes_by_comp; if (l_tmp != j) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge collections with indix shuffle\n"); return OPJ_TRUE; } } opj_read_bytes(p_header_data,&l_nb_comps,2); p_header_data+=2; l_nb_bytes_by_comp = 1 + (l_nb_comps>>15); l_nb_comps &= 0x7fff; if (l_nb_comps != l_mcc_record->m_nb_comps) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge collections without same number of indixes\n"); return OPJ_TRUE; } if (p_header_size < (l_nb_bytes_by_comp * l_mcc_record->m_nb_comps + 3)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } p_header_size -= (l_nb_bytes_by_comp * l_mcc_record->m_nb_comps + 3); for (j=0;jm_nb_comps;++j) { opj_read_bytes(p_header_data,&l_tmp,l_nb_bytes_by_comp); /* Wmccij Component offset*/ p_header_data+=l_nb_bytes_by_comp; if (l_tmp != j) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge collections with indix shuffle\n"); return OPJ_TRUE; } } opj_read_bytes(p_header_data,&l_tmp,3); /* Wmccij Component offset*/ p_header_data += 3; l_mcc_record->m_is_irreversible = ! ((l_tmp>>16) & 1); l_mcc_record->m_decorrelation_array = 00; l_mcc_record->m_offset_array = 00; l_indix = l_tmp & 0xff; if (l_indix != 0) { l_mct_data = l_tcp->m_mct_records; for (j=0;jm_nb_mct_records;++j) { if (l_mct_data->m_index == l_indix) { l_mcc_record->m_decorrelation_array = l_mct_data; break; } ++l_mct_data; } if (l_mcc_record->m_decorrelation_array == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } } l_indix = (l_tmp >> 8) & 0xff; if (l_indix != 0) { l_mct_data = l_tcp->m_mct_records; for (j=0;jm_nb_mct_records;++j) { if (l_mct_data->m_index == l_indix) { l_mcc_record->m_offset_array = l_mct_data; break; } ++l_mct_data; } if (l_mcc_record->m_offset_array == 00) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } } } if (p_header_size != 0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCC marker\n"); return OPJ_FALSE; } ++l_tcp->m_nb_mcc_records; return OPJ_TRUE; } /** * Reads a MCO marker (Multiple Component Transform Ordering) * * @param p_header_data the data contained in the MCO box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the MCO marker. * @param p_manager the user event manager. */ opj_bool j2k_read_mco ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 l_tmp, i; OPJ_UINT32 l_nb_stages; opj_tcp_v2_t * l_tcp; opj_tccp_t * l_tccp; opj_image_t * l_image; opj_image_comp_t * l_img_comp; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_image = p_j2k->m_image; l_tcp = p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH ? &p_j2k->m_cp.tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; if (p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading MCO marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_nb_stages,1); /* Nmco : only one tranform stage*/ ++p_header_data; if (l_nb_stages > 1) { opj_event_msg_v2(p_manager, EVT_WARNING, "Cannot take in charge multiple transformation stages.\n"); return OPJ_TRUE; } if (p_header_size != l_nb_stages + 1) { opj_event_msg_v2(p_manager, EVT_WARNING, "Error reading MCO marker\n"); return OPJ_FALSE; } l_tccp = l_tcp->tccps; l_img_comp = l_image->comps; for (i=0;inumcomps;++i) { l_tccp->m_dc_level_shift = 0; ++l_tccp; } if (l_tcp->m_mct_decoding_matrix) { opj_free(l_tcp->m_mct_decoding_matrix); l_tcp->m_mct_decoding_matrix = 00; } for (i=0;im_image,l_tmp)) { return OPJ_FALSE; } } return OPJ_TRUE; } opj_bool j2k_add_mct(opj_tcp_v2_t * p_tcp, opj_image_t * p_image, OPJ_UINT32 p_index) { OPJ_UINT32 i; opj_simple_mcc_decorrelation_data_t * l_mcc_record; opj_mct_data_t * l_deco_array, * l_offset_array; OPJ_UINT32 l_data_size,l_mct_size, l_offset_size; OPJ_UINT32 l_nb_elem; OPJ_UINT32 * l_offset_data, * l_current_offset_data; opj_tccp_t * l_tccp; /* preconditions */ assert(p_tcp != 00); l_mcc_record = p_tcp->m_mcc_records; for (i=0;im_nb_mcc_records;++i) { if (l_mcc_record->m_index == p_index) { break; } } if (i==p_tcp->m_nb_mcc_records) { /** element discarded **/ return OPJ_TRUE; } if (l_mcc_record->m_nb_comps != p_image->numcomps) { /** do not support number of comps != image */ return OPJ_TRUE; } l_deco_array = l_mcc_record->m_decorrelation_array; if (l_deco_array) { l_data_size = MCT_ELEMENT_SIZE[l_deco_array->m_element_type] * p_image->numcomps * p_image->numcomps; if (l_deco_array->m_data_size != l_data_size) { return OPJ_FALSE; } l_nb_elem = p_image->numcomps * p_image->numcomps; l_mct_size = l_nb_elem * sizeof(OPJ_FLOAT32); p_tcp->m_mct_decoding_matrix = (OPJ_FLOAT32*)opj_malloc(l_mct_size); if (! p_tcp->m_mct_decoding_matrix ) { return OPJ_FALSE; } j2k_mct_read_functions_to_float[l_deco_array->m_element_type](l_deco_array->m_data,p_tcp->m_mct_decoding_matrix,l_nb_elem); } l_offset_array = l_mcc_record->m_offset_array; if (l_offset_array) { l_data_size = MCT_ELEMENT_SIZE[l_offset_array->m_element_type] * p_image->numcomps; if (l_offset_array->m_data_size != l_data_size) { return OPJ_FALSE; } l_nb_elem = p_image->numcomps; l_offset_size = l_nb_elem * sizeof(OPJ_UINT32); l_offset_data = (OPJ_UINT32*)opj_malloc(l_offset_size); if (! l_offset_data ) { return OPJ_FALSE; } j2k_mct_read_functions_to_int32[l_offset_array->m_element_type](l_offset_array->m_data,l_offset_data,l_nb_elem); l_tccp = p_tcp->tccps; l_current_offset_data = l_offset_data; for (i=0;inumcomps;++i) { l_tccp->m_dc_level_shift = *(l_current_offset_data++); ++l_tccp; } opj_free(l_offset_data); } return OPJ_TRUE; } /** * Reads a CBD marker (Component bit depth definition) * @param p_header_data the data contained in the CBD box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the CBD marker. * @param p_manager the user event manager. */ opj_bool j2k_read_cbd ( opj_j2k_v2_t *p_j2k, OPJ_BYTE * p_header_data, OPJ_UINT32 p_header_size, struct opj_event_mgr * p_manager) { OPJ_UINT32 l_nb_comp,l_num_comp; OPJ_UINT32 l_comp_def; OPJ_UINT32 i; opj_image_comp_t * l_comp = 00; /* preconditions */ assert(p_header_data != 00); assert(p_j2k != 00); assert(p_manager != 00); l_num_comp = p_j2k->m_image->numcomps; if (p_header_size != (p_j2k->m_image->numcomps + 2)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Crror reading CBD marker\n"); return OPJ_FALSE; } opj_read_bytes(p_header_data,&l_nb_comp,2); /* Ncbd */ p_header_data+=2; if (l_nb_comp != l_num_comp) { opj_event_msg_v2(p_manager, EVT_ERROR, "Crror reading CBD marker\n"); return OPJ_FALSE; } l_comp = p_j2k->m_image->comps; for (i=0;isgnd = (l_comp_def>>7) & 1; l_comp->prec = (l_comp_def&0x7f) + 1; ++l_comp; } return OPJ_TRUE; } /* ----------------------------------------------------------------------- */ /* J2K / JPT decoder interface */ /* ----------------------------------------------------------------------- */ opj_j2k_t* j2k_create_decompress(opj_common_ptr cinfo) { opj_j2k_t *j2k = (opj_j2k_t*) opj_calloc(1, sizeof(opj_j2k_t)); if(!j2k) return NULL; j2k->default_tcp = (opj_tcp_t*) opj_calloc(1, sizeof(opj_tcp_t)); if(!j2k->default_tcp) { opj_free(j2k); return NULL; } j2k->cinfo = cinfo; j2k->tile_data = NULL; return j2k; } void j2k_destroy_decompress(opj_j2k_t *j2k) { int i = 0; if(j2k->tile_len != NULL) { opj_free(j2k->tile_len); } if(j2k->tile_data != NULL) { opj_free(j2k->tile_data); } if(j2k->default_tcp != NULL) { opj_tcp_t *default_tcp = j2k->default_tcp; if(default_tcp->ppt_data_first != NULL) { opj_free(default_tcp->ppt_data_first); } if(j2k->default_tcp->tccps != NULL) { opj_free(j2k->default_tcp->tccps); } opj_free(j2k->default_tcp); } if(j2k->cp != NULL) { opj_cp_t *cp = j2k->cp; if(cp->tcps != NULL) { for(i = 0; i < cp->tw * cp->th; i++) { if(cp->tcps[i].ppt_data_first != NULL) { opj_free(cp->tcps[i].ppt_data_first); } if(cp->tcps[i].tccps != NULL) { opj_free(cp->tcps[i].tccps); } } opj_free(cp->tcps); } if(cp->ppm_data_first != NULL) { opj_free(cp->ppm_data_first); } if(cp->tileno != NULL) { opj_free(cp->tileno); } if(cp->comment != NULL) { opj_free(cp->comment); } opj_free(cp); } opj_free(j2k); } void j2k_setup_decoder(opj_j2k_t *j2k, opj_dparameters_t *parameters) { if(j2k && parameters) { /* create and initialize the coding parameters structure */ opj_cp_t *cp = (opj_cp_t*) opj_calloc(1, sizeof(opj_cp_t)); cp->reduce = parameters->cp_reduce; cp->layer = parameters->cp_layer; cp->limit_decoding = parameters->cp_limit_decoding; #ifdef USE_JPWL cp->correct = parameters->jpwl_correct; cp->exp_comps = parameters->jpwl_exp_comps; cp->max_tiles = parameters->jpwl_max_tiles; #endif /* USE_JPWL */ /* keep a link to cp so that we can destroy it later in j2k_destroy_decompress */ j2k->cp = cp; } } void j2k_setup_decoder_v2(opj_j2k_v2_t *j2k, opj_dparameters_t *parameters) { if(j2k && parameters) { j2k->m_cp.m_specific_param.m_dec.m_layer = parameters->cp_layer; j2k->m_cp.m_specific_param.m_dec.m_reduce = parameters->cp_reduce; #ifdef USE_JPWL j2k->m_cp.correct = parameters->jpwl_correct; j2k->m_cp.exp_comps = parameters->jpwl_exp_comps; j2k->m_cp.max_tiles = parameters->jpwl_max_tiles; #endif /* USE_JPWL */ } } opj_image_t* j2k_decode(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info) { opj_image_t *image = NULL; opj_common_ptr cinfo = j2k->cinfo; j2k->cio = cio; j2k->cstr_info = cstr_info; if (cstr_info) memset(cstr_info, 0, sizeof(opj_codestream_info_t)); /* create an empty image */ image = opj_image_create0(); j2k->image = image; j2k->state = J2K_STATE_MHSOC; for (;;) { opj_dec_mstabent_t *e; int id = cio_read(cio, 2); #ifdef USE_JPWL /* we try to honor JPWL correction power */ if (j2k->cp->correct) { int orig_pos = cio_tell(cio); opj_bool status; /* call the corrector */ status = jpwl_correct(j2k); /* go back to where you were */ cio_seek(cio, orig_pos - 2); /* re-read the marker */ id = cio_read(cio, 2); /* check whether it begins with ff */ if (id >> 8 != 0xff) { opj_event_msg(cinfo, EVT_ERROR, "JPWL: possible bad marker %x at %d\n", id, cio_tell(cio) - 2); if (!JPWL_ASSUME) { opj_image_destroy(image); opj_event_msg(cinfo, EVT_ERROR, "JPWL: giving up\n"); return 0; } /* we try to correct */ id = id | 0xff00; cio_seek(cio, cio_tell(cio) - 2); cio_write(cio, id, 2); opj_event_msg(cinfo, EVT_WARNING, "- trying to adjust this\n" "- setting marker to %x\n", id); } } #endif /* USE_JPWL */ if (id >> 8 != 0xff) { opj_image_destroy(image); opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id); return 0; } e = j2k_dec_mstab_lookup(id); // Check if the marker is known if (!(j2k->state & e->states)) { opj_image_destroy(image); opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id); return 0; } // Check if the decoding is limited to the main header if (e->id == J2K_MS_SOT && j2k->cp->limit_decoding == LIMIT_TO_MAIN_HEADER) { opj_event_msg(cinfo, EVT_INFO, "Main Header decoded.\n"); return image; } if (e->handler) { (*e->handler)(j2k); } if (j2k->state & J2K_STATE_ERR) return NULL; if (j2k->state == J2K_STATE_MT) { break; } if (j2k->state == J2K_STATE_NEOC) { break; } } if (j2k->state == J2K_STATE_NEOC) { j2k_read_eoc(j2k); } if (j2k->state != J2K_STATE_MT) { opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n"); } return image; } /* * Read a JPT-stream and decode file * */ opj_image_t* j2k_decode_jpt_stream(opj_j2k_t *j2k, opj_cio_t *cio, opj_codestream_info_t *cstr_info) { opj_image_t *image = NULL; opj_jpt_msg_header_t header; int position; opj_common_ptr cinfo = j2k->cinfo; OPJ_ARG_NOT_USED(cstr_info); j2k->cio = cio; /* create an empty image */ image = opj_image_create0(); j2k->image = image; j2k->state = J2K_STATE_MHSOC; /* Initialize the header */ jpt_init_msg_header(&header); /* Read the first header of the message */ jpt_read_msg_header(cinfo, cio, &header); position = cio_tell(cio); if (header.Class_Id != 6) { /* 6 : Main header data-bin message */ opj_image_destroy(image); opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Main header first [class_Id %d] !\n", header.Class_Id); return 0; } for (;;) { opj_dec_mstabent_t *e = NULL; int id; if (!cio_numbytesleft(cio)) { j2k_read_eoc(j2k); return image; } /* data-bin read -> need to read a new header */ if ((unsigned int) (cio_tell(cio) - position) == header.Msg_length) { jpt_read_msg_header(cinfo, cio, &header); position = cio_tell(cio); if (header.Class_Id != 4) { /* 4 : Tile data-bin message */ opj_image_destroy(image); opj_event_msg(cinfo, EVT_ERROR, "[JPT-stream] : Expecting Tile info !\n"); return 0; } } id = cio_read(cio, 2); if (id >> 8 != 0xff) { opj_image_destroy(image); opj_event_msg(cinfo, EVT_ERROR, "%.8x: expected a marker instead of %x\n", cio_tell(cio) - 2, id); return 0; } e = j2k_dec_mstab_lookup(id); if (!(j2k->state & e->states)) { opj_image_destroy(image); opj_event_msg(cinfo, EVT_ERROR, "%.8x: unexpected marker %x\n", cio_tell(cio) - 2, id); return 0; } if (e->handler) { (*e->handler)(j2k); } if (j2k->state == J2K_STATE_MT) { break; } if (j2k->state == J2K_STATE_NEOC) { break; } } if (j2k->state == J2K_STATE_NEOC) { j2k_read_eoc(j2k); } if (j2k->state != J2K_STATE_MT) { opj_event_msg(cinfo, EVT_WARNING, "Incomplete bitstream\n"); } return image; } /* ----------------------------------------------------------------------- */ /* J2K encoder interface */ /* ----------------------------------------------------------------------- */ opj_j2k_t* j2k_create_compress(opj_common_ptr cinfo) { opj_j2k_t *j2k = (opj_j2k_t*) opj_calloc(1, sizeof(opj_j2k_t)); if(j2k) { j2k->cinfo = cinfo; } return j2k; } opj_j2k_v2_t* j2k_create_compress_v2() { opj_j2k_v2_t *l_j2k = (opj_j2k_v2_t*) opj_malloc(sizeof(opj_j2k_v2_t)); if (!l_j2k) { return NULL; } memset(l_j2k,0,sizeof(opj_j2k_v2_t)); l_j2k->m_is_decoder = 0; l_j2k->m_cp.m_is_decoder = 0; l_j2k->m_specific_param.m_encoder.m_header_tile_data = (OPJ_BYTE *) opj_malloc(J2K_DEFAULT_HEADER_SIZE); if (! l_j2k->m_specific_param.m_encoder.m_header_tile_data) { j2k_destroy(l_j2k); return NULL; } l_j2k->m_specific_param.m_encoder.m_header_tile_data_size = J2K_DEFAULT_HEADER_SIZE; // validation list creation l_j2k->m_validation_list = opj_procedure_list_create(); if (! l_j2k->m_validation_list) { j2k_destroy(l_j2k); return NULL; } // execution list creation l_j2k->m_procedure_list = opj_procedure_list_create(); if (! l_j2k->m_procedure_list) { j2k_destroy(l_j2k); return NULL; } return l_j2k; } void j2k_destroy_compress(opj_j2k_t *j2k) { int tileno; if(!j2k) return; if(j2k->cp != NULL) { opj_cp_t *cp = j2k->cp; if(cp->comment) { opj_free(cp->comment); } if(cp->matrice) { opj_free(cp->matrice); } for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { opj_free(cp->tcps[tileno].tccps); } opj_free(cp->tcps); opj_free(cp); } opj_free(j2k); } void j2k_setup_encoder(opj_j2k_t *j2k, opj_cparameters_t *parameters, opj_image_t *image) { int i, j, tileno, numpocs_tile; opj_cp_t *cp = NULL; if(!j2k || !parameters || ! image) { return; } /* create and initialize the coding parameters structure */ cp = (opj_cp_t*) opj_calloc(1, sizeof(opj_cp_t)); /* keep a link to cp so that we can destroy it later in j2k_destroy_compress */ j2k->cp = cp; /* set default values for cp */ cp->tw = 1; cp->th = 1; /* copy user encoding parameters */ cp->cinema = parameters->cp_cinema; cp->max_comp_size = parameters->max_comp_size; cp->rsiz = parameters->cp_rsiz; cp->disto_alloc = parameters->cp_disto_alloc; cp->fixed_alloc = parameters->cp_fixed_alloc; cp->fixed_quality = parameters->cp_fixed_quality; /* mod fixed_quality */ if(parameters->cp_matrice) { size_t array_size = parameters->tcp_numlayers * parameters->numresolution * 3 * sizeof(int); cp->matrice = (int *) opj_malloc(array_size); memcpy(cp->matrice, parameters->cp_matrice, array_size); } /* tiles */ cp->tdx = parameters->cp_tdx; cp->tdy = parameters->cp_tdy; /* tile offset */ cp->tx0 = parameters->cp_tx0; cp->ty0 = parameters->cp_ty0; /* comment string */ if(parameters->cp_comment) { cp->comment = (char*)opj_malloc(strlen(parameters->cp_comment) + 1); if(cp->comment) { strcpy(cp->comment, parameters->cp_comment); } } /* calculate other encoding parameters */ if (parameters->tile_size_on) { cp->tw = int_ceildiv(image->x1 - cp->tx0, cp->tdx); cp->th = int_ceildiv(image->y1 - cp->ty0, cp->tdy); } else { cp->tdx = image->x1 - cp->tx0; cp->tdy = image->y1 - cp->ty0; } if(parameters->tp_on){ cp->tp_flag = parameters->tp_flag; cp->tp_on = 1; } cp->img_size = 0; for(i=0;inumcomps ;i++){ cp->img_size += (image->comps[i].w *image->comps[i].h * image->comps[i].prec); } #ifdef USE_JPWL /* calculate JPWL encoding parameters */ if (parameters->jpwl_epc_on) { int i; /* set JPWL on */ cp->epc_on = OPJ_TRUE; cp->info_on = OPJ_FALSE; /* no informative technique */ /* set EPB on */ if ((parameters->jpwl_hprot_MH > 0) || (parameters->jpwl_hprot_TPH[0] > 0)) { cp->epb_on = OPJ_TRUE; cp->hprot_MH = parameters->jpwl_hprot_MH; for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) { cp->hprot_TPH_tileno[i] = parameters->jpwl_hprot_TPH_tileno[i]; cp->hprot_TPH[i] = parameters->jpwl_hprot_TPH[i]; } /* if tile specs are not specified, copy MH specs */ if (cp->hprot_TPH[0] == -1) { cp->hprot_TPH_tileno[0] = 0; cp->hprot_TPH[0] = parameters->jpwl_hprot_MH; } for (i = 0; i < JPWL_MAX_NO_PACKSPECS; i++) { cp->pprot_tileno[i] = parameters->jpwl_pprot_tileno[i]; cp->pprot_packno[i] = parameters->jpwl_pprot_packno[i]; cp->pprot[i] = parameters->jpwl_pprot[i]; } } /* set ESD writing */ if ((parameters->jpwl_sens_size == 1) || (parameters->jpwl_sens_size == 2)) { cp->esd_on = OPJ_TRUE; cp->sens_size = parameters->jpwl_sens_size; cp->sens_addr = parameters->jpwl_sens_addr; cp->sens_range = parameters->jpwl_sens_range; cp->sens_MH = parameters->jpwl_sens_MH; for (i = 0; i < JPWL_MAX_NO_TILESPECS; i++) { cp->sens_TPH_tileno[i] = parameters->jpwl_sens_TPH_tileno[i]; cp->sens_TPH[i] = parameters->jpwl_sens_TPH[i]; } } /* always set RED writing to false: we are at the encoder */ cp->red_on = OPJ_FALSE; } else { cp->epc_on = OPJ_FALSE; } #endif /* USE_JPWL */ /* initialize the mutiple tiles */ /* ---------------------------- */ cp->tcps = (opj_tcp_t*) opj_calloc(cp->tw * cp->th, sizeof(opj_tcp_t)); for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { opj_tcp_t *tcp = &cp->tcps[tileno]; tcp->numlayers = parameters->tcp_numlayers; for (j = 0; j < tcp->numlayers; j++) { if(cp->cinema){ if (cp->fixed_quality) { tcp->distoratio[j] = parameters->tcp_distoratio[j]; } tcp->rates[j] = parameters->tcp_rates[j]; }else{ if (cp->fixed_quality) { /* add fixed_quality */ tcp->distoratio[j] = parameters->tcp_distoratio[j]; } else { tcp->rates[j] = parameters->tcp_rates[j]; } } } tcp->csty = parameters->csty; tcp->prg = parameters->prog_order; tcp->mct = parameters->tcp_mct; numpocs_tile = 0; tcp->POC = 0; if (parameters->numpocs) { /* initialisation of POC */ tcp->POC = 1; for (i = 0; i < parameters->numpocs; i++) { if((tileno == parameters->POC[i].tile - 1) || (parameters->POC[i].tile == -1)) { opj_poc_t *tcp_poc = &tcp->pocs[numpocs_tile]; tcp_poc->resno0 = parameters->POC[numpocs_tile].resno0; tcp_poc->compno0 = parameters->POC[numpocs_tile].compno0; tcp_poc->layno1 = parameters->POC[numpocs_tile].layno1; tcp_poc->resno1 = parameters->POC[numpocs_tile].resno1; tcp_poc->compno1 = parameters->POC[numpocs_tile].compno1; tcp_poc->prg1 = parameters->POC[numpocs_tile].prg1; tcp_poc->tile = parameters->POC[numpocs_tile].tile; numpocs_tile++; } } tcp->numpocs = numpocs_tile -1 ; }else{ tcp->numpocs = 0; } tcp->tccps = (opj_tccp_t*) opj_calloc(image->numcomps, sizeof(opj_tccp_t)); for (i = 0; i < image->numcomps; i++) { opj_tccp_t *tccp = &tcp->tccps[i]; tccp->csty = parameters->csty & 0x01; /* 0 => one precinct || 1 => custom precinct */ tccp->numresolutions = parameters->numresolution; tccp->cblkw = int_floorlog2(parameters->cblockw_init); tccp->cblkh = int_floorlog2(parameters->cblockh_init); tccp->cblksty = parameters->mode; tccp->qmfbid = parameters->irreversible ? 0 : 1; tccp->qntsty = parameters->irreversible ? J2K_CCP_QNTSTY_SEQNT : J2K_CCP_QNTSTY_NOQNT; tccp->numgbits = 2; if (i == parameters->roi_compno) { tccp->roishift = parameters->roi_shift; } else { tccp->roishift = 0; } if(parameters->cp_cinema) { //Precinct size for lowest frequency subband=128 tccp->prcw[0] = 7; tccp->prch[0] = 7; //Precinct size at all other resolutions = 256 for (j = 1; j < tccp->numresolutions; j++) { tccp->prcw[j] = 8; tccp->prch[j] = 8; } }else{ if (parameters->csty & J2K_CCP_CSTY_PRT) { int p = 0; for (j = tccp->numresolutions - 1; j >= 0; j--) { if (p < parameters->res_spec) { if (parameters->prcw_init[p] < 1) { tccp->prcw[j] = 1; } else { tccp->prcw[j] = int_floorlog2(parameters->prcw_init[p]); } if (parameters->prch_init[p] < 1) { tccp->prch[j] = 1; }else { tccp->prch[j] = int_floorlog2(parameters->prch_init[p]); } } else { int res_spec = parameters->res_spec; int size_prcw = parameters->prcw_init[res_spec - 1] >> (p - (res_spec - 1)); int size_prch = parameters->prch_init[res_spec - 1] >> (p - (res_spec - 1)); if (size_prcw < 1) { tccp->prcw[j] = 1; } else { tccp->prcw[j] = int_floorlog2(size_prcw); } if (size_prch < 1) { tccp->prch[j] = 1; } else { tccp->prch[j] = int_floorlog2(size_prch); } } p++; /*printf("\nsize precinct for level %d : %d,%d\n", j,tccp->prcw[j], tccp->prch[j]); */ } //end for } else { for (j = 0; j < tccp->numresolutions; j++) { tccp->prcw[j] = 15; tccp->prch[j] = 15; } } } dwt_calc_explicit_stepsizes(tccp, image->comps[i].prec); } } } opj_bool j2k_encode(opj_j2k_t *j2k, opj_cio_t *cio, opj_image_t *image, opj_codestream_info_t *cstr_info) { int tileno, compno; opj_cp_t *cp = NULL; opj_tcd_t *tcd = NULL; /* TCD component */ j2k->cio = cio; j2k->image = image; cp = j2k->cp; /* INDEX >> */ j2k->cstr_info = cstr_info; if (cstr_info) { int compno; cstr_info->tile = (opj_tile_info_t *) opj_malloc(cp->tw * cp->th * sizeof(opj_tile_info_t)); cstr_info->image_w = image->x1 - image->x0; cstr_info->image_h = image->y1 - image->y0; cstr_info->prog = (&cp->tcps[0])->prg; cstr_info->tw = cp->tw; cstr_info->th = cp->th; cstr_info->tile_x = cp->tdx; /* new version parser */ cstr_info->tile_y = cp->tdy; /* new version parser */ cstr_info->tile_Ox = cp->tx0; /* new version parser */ cstr_info->tile_Oy = cp->ty0; /* new version parser */ cstr_info->numcomps = image->numcomps; cstr_info->numlayers = (&cp->tcps[0])->numlayers; cstr_info->numdecompos = (int*) opj_malloc(image->numcomps * sizeof(int)); for (compno=0; compno < image->numcomps; compno++) { cstr_info->numdecompos[compno] = (&cp->tcps[0])->tccps->numresolutions - 1; } cstr_info->D_max = 0.0; /* ADD Marcela */ cstr_info->main_head_start = cio_tell(cio); /* position of SOC */ cstr_info->maxmarknum = 100; cstr_info->marker = (opj_marker_info_t *) opj_malloc(cstr_info->maxmarknum * sizeof(opj_marker_info_t)); cstr_info->marknum = 0; } /* << INDEX */ j2k_write_soc(j2k); j2k_write_siz(j2k); j2k_write_cod(j2k); j2k_write_qcd(j2k); if(cp->cinema){ for (compno = 1; compno < image->numcomps; compno++) { j2k_write_coc(j2k, compno); j2k_write_qcc(j2k, compno); } } for (compno = 0; compno < image->numcomps; compno++) { opj_tcp_t *tcp = &cp->tcps[0]; if (tcp->tccps[compno].roishift) j2k_write_rgn(j2k, compno, 0); } if (cp->comment != NULL) { j2k_write_com(j2k); } j2k->totnum_tp = j2k_calculate_tp(cp,image->numcomps,image,j2k); /* TLM Marker*/ if(cp->cinema){ j2k_write_tlm(j2k); if (cp->cinema == CINEMA4K_24) { j2k_write_poc(j2k); } } /* uncomment only for testing JPSEC marker writing */ /* j2k_write_sec(j2k); */ /* INDEX >> */ if(cstr_info) { cstr_info->main_head_end = cio_tell(cio) - 1; } /* << INDEX */ /**** Main Header ENDS here ***/ /* create the tile encoder */ tcd = tcd_create(j2k->cinfo); /* encode each tile */ for (tileno = 0; tileno < cp->tw * cp->th; tileno++) { int pino; int tilepartno=0; /* UniPG>> */ int acc_pack_num = 0; /* <tcps[tileno]; opj_event_msg(j2k->cinfo, EVT_INFO, "tile number %d / %d\n", tileno + 1, cp->tw * cp->th); j2k->curtileno = tileno; j2k->cur_tp_num = 0; tcd->cur_totnum_tp = j2k->cur_totnum_tp[j2k->curtileno]; /* initialisation before tile encoding */ if (tileno == 0) { tcd_malloc_encode(tcd, image, cp, j2k->curtileno); } else { tcd_init_encode(tcd, image, cp, j2k->curtileno); } /* INDEX >> */ if(cstr_info) { cstr_info->tile[j2k->curtileno].start_pos = cio_tell(cio) + j2k->pos_correction; cstr_info->tile[j2k->curtileno].maxmarknum = 10; cstr_info->tile[j2k->curtileno].marker = (opj_marker_info_t *) opj_malloc(cstr_info->tile[j2k->curtileno].maxmarknum * sizeof(opj_marker_info_t)); cstr_info->tile[j2k->curtileno].marknum = 0; } /* << INDEX */ for(pino = 0; pino <= tcp->numpocs; pino++) { int tot_num_tp; tcd->cur_pino=pino; /*Get number of tile parts*/ tot_num_tp = j2k_get_num_tp(cp,pino,tileno); tcd->tp_pos = cp->tp_pos; for(tilepartno = 0; tilepartno < tot_num_tp ; tilepartno++){ j2k->tp_num = tilepartno; /* INDEX >> */ if(cstr_info) cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_start_pos = cio_tell(cio) + j2k->pos_correction; /* << INDEX */ j2k_write_sot(j2k); if(j2k->cur_tp_num == 0 && cp->cinema == 0){ for (compno = 1; compno < image->numcomps; compno++) { j2k_write_coc(j2k, compno); j2k_write_qcc(j2k, compno); } if (cp->tcps[tileno].numpocs) { j2k_write_poc(j2k); } } /* INDEX >> */ if(cstr_info) cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_header = cio_tell(cio) + j2k->pos_correction + 1; /* << INDEX */ j2k_write_sod(j2k, tcd); /* INDEX >> */ if(cstr_info) { cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_end_pos = cio_tell(cio) + j2k->pos_correction - 1; cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_start_pack = acc_pack_num; cstr_info->tile[j2k->curtileno].tp[j2k->cur_tp_num].tp_numpacks = cstr_info->packno - acc_pack_num; acc_pack_num = cstr_info->packno; } /* << INDEX */ j2k->cur_tp_num++; } } if(cstr_info) { cstr_info->tile[j2k->curtileno].end_pos = cio_tell(cio) + j2k->pos_correction - 1; } /* if (tile->PPT) { // BAD PPT !!! FILE *PPT_file; int i; PPT_file=fopen("PPT","rb"); fprintf(stderr,"%c%c%c%c",255,97,tile->len_ppt/256,tile->len_ppt%256); for (i=0;ilen_ppt;i++) { unsigned char elmt; fread(&elmt, 1, 1, PPT_file); fwrite(&elmt,1,1,f); } fclose(PPT_file); unlink("PPT"); } */ } /* destroy the tile encoder */ tcd_free_encode(tcd); tcd_destroy(tcd); opj_free(j2k->cur_totnum_tp); j2k_write_eoc(j2k); if(cstr_info) { cstr_info->codestream_size = cio_tell(cio) + j2k->pos_correction; /* UniPG>> */ /* The following adjustment is done to adjust the codestream size */ /* if SOD is not at 0 in the buffer. Useful in case of JP2, where */ /* the first bunch of bytes is not in the codestream */ cstr_info->codestream_size -= cstr_info->main_head_start; /* <epc_on) { /* encode according to JPWL */ jpwl_encode(j2k, cio, image); } #endif /* USE_JPWL */ return OPJ_TRUE; } static void j2k_add_mhmarker(opj_codestream_info_t *cstr_info, unsigned short int type, int pos, int len) { if (!cstr_info) return; /* expand the list? */ if ((cstr_info->marknum + 1) > cstr_info->maxmarknum) { cstr_info->maxmarknum = 100 + (int) ((float) cstr_info->maxmarknum * 1.0F); cstr_info->marker = (opj_marker_info_t*)opj_realloc(cstr_info->marker, cstr_info->maxmarknum); } /* add the marker */ cstr_info->marker[cstr_info->marknum].type = type; cstr_info->marker[cstr_info->marknum].pos = pos; cstr_info->marker[cstr_info->marknum].len = len; cstr_info->marknum++; } static void j2k_add_mhmarker_v2(opj_codestream_index_t *cstr_index, OPJ_UINT32 type, OPJ_UINT32 pos, OPJ_UINT32 len) { if (!cstr_index) return; /* expand the list? */ if ((cstr_index->marknum + 1) > cstr_index->maxmarknum) { cstr_index->maxmarknum = 100 + (int) ((float) cstr_index->maxmarknum * 1.0F); cstr_index->marker = (opj_marker_info_t*)opj_realloc(cstr_index->marker, cstr_index->maxmarknum *sizeof(opj_marker_info_t)); } /* add the marker */ cstr_index->marker[cstr_index->marknum].type = (OPJ_UINT16)type; cstr_index->marker[cstr_index->marknum].pos = (OPJ_INT32)pos; cstr_index->marker[cstr_index->marknum].len = (OPJ_INT32)len; cstr_index->marknum++; } static void j2k_add_tlmarker( int tileno, opj_codestream_info_t *cstr_info, unsigned short int type, int pos, int len) { opj_marker_info_t *marker; if (!cstr_info) return; /* expand the list? */ if ((cstr_info->tile[tileno].marknum + 1) > cstr_info->tile[tileno].maxmarknum) { cstr_info->tile[tileno].maxmarknum = 100 + (int) ((float) cstr_info->tile[tileno].maxmarknum * 1.0F); cstr_info->tile[tileno].marker = (opj_marker_info_t*)opj_realloc(cstr_info->tile[tileno].marker, cstr_info->maxmarknum); } marker = &(cstr_info->tile[tileno].marker[cstr_info->tile[tileno].marknum]); /* add the marker */ marker->type = type; marker->pos = pos; marker->len = len; cstr_info->tile[tileno].marknum++; } /* * ----------------------------------------------------------------------- * ----------------------------------------------------------------------- * ----------------------------------------------------------------------- */ /** * Ends the decompression procedures and possibiliy add data to be read after the * codestream. */ opj_bool j2k_end_decompress( opj_j2k_v2_t *p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager) { return OPJ_TRUE; } /** * Reads a jpeg2000 codestream header structure. * * @param p_stream the stream to read data from. * @param p_j2k the jpeg2000 codec. * @param p_manager the user event manager. * * @return true if the box is valid. */ opj_bool j2k_read_header( struct opj_stream_private *p_stream, opj_j2k_v2_t* p_j2k, opj_image_t** p_image, struct opj_event_mgr* p_manager ) { /* preconditions */ assert(p_j2k != 00); assert(p_stream != 00); assert(p_manager != 00); /* create an empty image header */ p_j2k->m_image = opj_image_create0(); if (! p_j2k->m_image) { return OPJ_FALSE; } /* customization of the validation */ j2k_setup_decoding_validation(p_j2k); /* validation of the parameters codec */ if (! j2k_exec(p_j2k, p_j2k->m_validation_list, p_stream,p_manager)) { opj_image_destroy(p_j2k->m_image); p_j2k->m_image = NULL; return OPJ_FALSE; } /* customization of the encoding */ j2k_setup_header_reading(p_j2k); /* read header */ if (! j2k_exec (p_j2k,p_j2k->m_procedure_list,p_stream,p_manager)) { opj_image_destroy(p_j2k->m_image); p_j2k->m_image = NULL; return OPJ_FALSE; } *p_image = opj_image_create0(); if (! (*p_image)) { return OPJ_FALSE; } if (! j2k_copy_img_header(p_j2k, p_image)){ opj_image_destroy(p_j2k->m_image); p_j2k->m_image = NULL; return OPJ_FALSE; } return OPJ_TRUE; } opj_bool j2k_copy_img_header(opj_j2k_v2_t* p_j2k, opj_image_t** p_image) { OPJ_UINT16 compno; /* preconditions */ assert(p_j2k != 00); (*p_image)->x0 = p_j2k->m_image->x0; (*p_image)->y0 = p_j2k->m_image->y0; (*p_image)->x1 = p_j2k->m_image->x1; (*p_image)->y1 = p_j2k->m_image->y1; (*p_image)->numcomps = p_j2k->m_image->numcomps; (*p_image)->comps = (opj_image_comp_t*)opj_malloc((*p_image)->numcomps * sizeof(opj_image_comp_t)); if (!(*p_image)->comps) return OPJ_FALSE; for (compno=0; compno < (*p_image)->numcomps; compno++){ memcpy( &((*p_image)->comps[compno]), &(p_j2k->m_image->comps[compno]), sizeof(opj_image_comp_t)); } (*p_image)->color_space = p_j2k->m_image->color_space; (*p_image)->icc_profile_len = p_j2k->m_image->icc_profile_len; if (!(*p_image)->icc_profile_len) { (*p_image)->icc_profile_buf = (unsigned char*)opj_malloc((*p_image)->icc_profile_len); if (!(*p_image)->icc_profile_buf) return OPJ_FALSE; memcpy( (*p_image)->icc_profile_buf, p_j2k->m_image->icc_profile_buf, p_j2k->m_image->icc_profile_len); } else (*p_image)->icc_profile_buf = NULL; return OPJ_TRUE; } /** * Sets up the procedures to do on reading header. Developpers wanting to extend the library can add their own reading procedures. */ void j2k_setup_header_reading (opj_j2k_v2_t *p_j2k) { // preconditions assert(p_j2k != 00); opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_read_header_procedure); /* DEVELOPER CORNER, add your custom procedures */ opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_copy_default_tcp_and_create_tcd); } /** * Sets up the validation ,i.e. adds the procedures to lauch to make sure the codec parameters * are valid. Developpers wanting to extend the library can add their own validation procedures. */ void j2k_setup_decoding_validation (opj_j2k_v2_t *p_j2k) { // preconditions assert(p_j2k != 00); opj_procedure_list_add_procedure(p_j2k->m_validation_list, (void*)j2k_build_decoder); opj_procedure_list_add_procedure(p_j2k->m_validation_list, (void*)j2k_decoding_validation); /* DEVELOPER CORNER, add your custom validation procedure */ } /** * Builds the cp decoder parameters to use to decode tile. */ opj_bool j2k_build_decoder ( opj_j2k_v2_t * p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ) { // add here initialization of cp // copy paste of setup_decoder return OPJ_TRUE; } /** * The default decoding validation procedure without any extension. * * @param p_j2k the jpeg2000 codec to validate. * @param p_stream the input stream to validate. * @param p_manager the user event manager. * * @return true if the parameters are correct. */ opj_bool j2k_decoding_validation ( opj_j2k_v2_t *p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ) { opj_bool l_is_valid = OPJ_TRUE; // preconditions assert(p_j2k != 00); assert(p_stream != 00); assert(p_manager != 00); /* STATE checking */ /* make sure the state is at 0 */ #ifdef TODO_MSD l_is_valid &= (p_j2k->m_specific_param.m_decoder.m_state == J2K_DEC_STATE_NONE); #endif l_is_valid &= (p_j2k->m_specific_param.m_decoder.m_state == 0x0000); /* POINTER validation */ /* make sure a p_j2k codec is present */ /* make sure a procedure list is present */ l_is_valid &= (p_j2k->m_procedure_list != 00); /* make sure a validation list is present */ l_is_valid &= (p_j2k->m_validation_list != 00); /* PARAMETER VALIDATION */ return l_is_valid; } opj_bool j2k_read_header_procedure( opj_j2k_v2_t *p_j2k, struct opj_stream_private *p_stream, struct opj_event_mgr * p_manager) { OPJ_UINT32 l_current_marker; OPJ_UINT32 l_marker_size; const opj_dec_memory_marker_handler_t * l_marker_handler = 00; /* preconditions */ assert(p_stream != 00); assert(p_j2k != 00); assert(p_manager != 00); /* We enter in the main header */ p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_MHSOC; /* Try to read the SOC marker, the codestream must begin with SOC marker */ if (! j2k_read_soc_v2(p_j2k,p_stream,p_manager)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Expected a SOC marker \n"); return OPJ_FALSE; } /* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* Read 2 bytes as the new marker ID */ opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2); /* Try to read until the SOT is detected */ while (l_current_marker != J2K_MS_SOT) { /* Check if the current marker ID is valid */ if (l_current_marker < 0xff00) { opj_event_msg_v2(p_manager, EVT_ERROR, "We expected read a marker ID (0xff--) instead of %.8x\n", l_current_marker); return OPJ_FALSE; } /* Get the marker handler from the marker ID */ l_marker_handler = j2k_get_marker_handler(l_current_marker); /* Manage case where marker is unknown */ if (l_marker_handler->id == J2K_MS_UNK) { if (! j2k_read_unk_v2(p_j2k, p_stream, &l_current_marker, p_manager)){ opj_event_msg_v2(p_manager, EVT_ERROR, "Unknow marker have been detected and generated error.\n"); return OPJ_FALSE; } if (l_current_marker == J2K_MS_SOT) break; /* SOT marker is detected main header is completely read */ else /* Get the marker handler from the marker ID */ l_marker_handler = j2k_get_marker_handler(l_current_marker); } /* Check if the marker is known and if it is the right place to find it */ if (! (p_j2k->m_specific_param.m_decoder.m_state & l_marker_handler->states) ) { opj_event_msg_v2(p_manager, EVT_ERROR, "Marker is not compliant with its position\n"); return OPJ_FALSE; } /* Try to read 2 bytes (the marker size) from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* read 2 bytes as the marker size */ opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_marker_size,2); l_marker_size -= 2; // Subtract the size of the marker ID already read /* Check if the marker size is compatible with the header data size */ if (l_marker_size > p_j2k->m_specific_param.m_decoder.m_header_data_size) { p_j2k->m_specific_param.m_decoder.m_header_data = (OPJ_BYTE*) opj_realloc(p_j2k->m_specific_param.m_decoder.m_header_data,l_marker_size); if (p_j2k->m_specific_param.m_decoder.m_header_data == 00) { return OPJ_FALSE; } p_j2k->m_specific_param.m_decoder.m_header_data_size = l_marker_size; } /* Try to read the rest of the marker segment from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,l_marker_size,p_manager) != l_marker_size) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* Read the marker segment with the correct marker handler */ if (! (*(l_marker_handler->handler))(p_j2k,p_j2k->m_specific_param.m_decoder.m_header_data,l_marker_size,p_manager)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Marker handler function failed to read the marker segment\n"); return OPJ_FALSE; } /* Add the marker to the codestream index*/ j2k_add_mhmarker_v2(p_j2k->cstr_index, l_marker_handler->id, (OPJ_UINT32) opj_stream_tell(p_stream) - l_marker_size - 4, l_marker_size + 4 ); /* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* read 2 bytes as the new marker ID */ opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2); } opj_event_msg_v2(p_manager, EVT_INFO, "Main header has been correctly decode.\n"); /* Position of the last element if the main header */ p_j2k->cstr_index->main_head_end = (OPJ_UINT32) opj_stream_tell(p_stream) - 2; /* Next step: read a tile-part header */ p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPHSOT; return OPJ_TRUE; } /** * Excutes the given procedures on the given codec. * * @param p_procedure_list the list of procedures to execute * @param p_j2k the jpeg2000 codec to execute the procedures on. * @param p_stream the stream to execute the procedures on. * @param p_manager the user manager. * * @return true if all the procedures were successfully executed. */ opj_bool j2k_exec ( opj_j2k_v2_t * p_j2k, opj_procedure_list_t * p_procedure_list, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ) { opj_bool (** l_procedure) (opj_j2k_v2_t * ,opj_stream_private_t *,opj_event_mgr_t *) = 00; opj_bool l_result = OPJ_TRUE; OPJ_UINT32 l_nb_proc, i; // preconditions assert(p_procedure_list != 00); assert(p_j2k != 00); assert(p_stream != 00); assert(p_manager != 00); l_nb_proc = opj_procedure_list_get_nb_procedures(p_procedure_list); l_procedure = (opj_bool (**) (opj_j2k_v2_t * ,opj_stream_private_t *,opj_event_mgr_t *)) opj_procedure_list_get_first_procedure(p_procedure_list); for (i=0;im_image; l_nb_tiles = p_j2k->m_cp.th * p_j2k->m_cp.tw; l_tcp = p_j2k->m_cp.tcps; l_tccp_size = l_image->numcomps * sizeof(opj_tccp_t); l_default_tcp = p_j2k->m_specific_param.m_decoder.m_default_tcp; l_mct_size = l_image->numcomps * l_image->numcomps * sizeof(OPJ_FLOAT32); /* For each tile */ for (i=0; itccps; /*Copy default coding parameters into the current tile coding parameters*/ memcpy(l_tcp, l_default_tcp, sizeof(opj_tcp_v2_t)); /* Initialize some values of the current tile coding parameters*/ l_tcp->ppt = 0; l_tcp->ppt_data = 00; /* Reconnect the tile-compo coding parameters pointer to the current tile coding parameters*/ l_tcp->tccps = l_current_tccp; /* Get the mct_decoding_matrix of the dflt_tile_cp and copy them into the current tile cp*/ if (l_default_tcp->m_mct_decoding_matrix) { l_tcp->m_mct_decoding_matrix = (OPJ_FLOAT32*)opj_malloc(l_mct_size); if (! l_tcp->m_mct_decoding_matrix ) { return OPJ_FALSE; } memcpy(l_tcp->m_mct_decoding_matrix,l_default_tcp->m_mct_decoding_matrix,l_mct_size); } /* Get the mct_record of the dflt_tile_cp and copy them into the current tile cp*/ l_mct_records_size = l_default_tcp->m_nb_max_mct_records * sizeof(opj_mct_data_t); l_tcp->m_mct_records = (opj_mct_data_t*)opj_malloc(l_mct_records_size); if (! l_tcp->m_mct_records) { return OPJ_FALSE; } memcpy(l_tcp->m_mct_records, l_default_tcp->m_mct_records,l_mct_records_size); /* Copy the mct record data from dflt_tile_cp to the current tile*/ l_src_mct_rec = l_default_tcp->m_mct_records; l_dest_mct_rec = l_tcp->m_mct_records; for (j=0;jm_nb_mct_records;++j) { if (l_src_mct_rec->m_data) { l_dest_mct_rec->m_data = (OPJ_BYTE*) opj_malloc(l_src_mct_rec->m_data_size); if(! l_dest_mct_rec->m_data) { return OPJ_FALSE; } memcpy(l_dest_mct_rec->m_data,l_src_mct_rec->m_data,l_src_mct_rec->m_data_size); } ++l_src_mct_rec; ++l_dest_mct_rec; } /* Get the mcc_record of the dflt_tile_cp and copy them into the current tile cp*/ l_mcc_records_size = l_default_tcp->m_nb_max_mcc_records * sizeof(opj_simple_mcc_decorrelation_data_t); l_tcp->m_mcc_records = (opj_simple_mcc_decorrelation_data_t*) opj_malloc(l_mcc_records_size); if (! l_tcp->m_mcc_records) { return OPJ_FALSE; } memcpy(l_tcp->m_mcc_records,l_default_tcp->m_mcc_records,l_mcc_records_size); /* Copy the mcc record data from dflt_tile_cp to the current tile*/ l_src_mcc_rec = l_default_tcp->m_mcc_records; l_dest_mcc_rec = l_tcp->m_mcc_records; for (j=0;jm_nb_max_mcc_records;++j) { if (l_src_mcc_rec->m_decorrelation_array) { l_offset = l_src_mcc_rec->m_decorrelation_array - l_default_tcp->m_mct_records; l_dest_mcc_rec->m_decorrelation_array = l_tcp->m_mct_records + l_offset; } if (l_src_mcc_rec->m_offset_array) { l_offset = l_src_mcc_rec->m_offset_array - l_default_tcp->m_mct_records; l_dest_mcc_rec->m_offset_array = l_tcp->m_mct_records + l_offset; } ++l_src_mcc_rec; ++l_dest_mcc_rec; } /* Copy all the dflt_tile_compo_cp to the current tile cp */ memcpy(l_current_tccp,l_default_tcp->tccps,l_tccp_size); /* Move to next tile cp*/ ++l_tcp; } /* Create the current tile decoder*/ p_j2k->m_tcd = (opj_tcd_v2_t*)tcd_create_v2(OPJ_TRUE); // FIXME why a cast ? if (! p_j2k->m_tcd ) { return OPJ_FALSE; } if ( !tcd_init_v2(p_j2k->m_tcd, l_image, &(p_j2k->m_cp)) ) { tcd_destroy_v2(p_j2k->m_tcd); p_j2k->m_tcd = 00; opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n"); return OPJ_FALSE; } return OPJ_TRUE; } /** * Reads the lookup table containing all the marker, status and action, and returns the handler associated * with the marker value. * @param p_id Marker value to look up * * @return the handler associated with the id. */ const opj_dec_memory_marker_handler_t * j2k_get_marker_handler (const OPJ_UINT32 p_id) { const opj_dec_memory_marker_handler_t *e; for (e = j2k_memory_marker_handler_tab; e->id != 0; ++e) { if (e->id == p_id) { break; // we find a handler corresponding to the marker ID } } return e; } /** * Destroys a jpeg2000 codec. * * @param p_j2k the jpeg20000 structure to destroy. */ void j2k_destroy (opj_j2k_v2_t *p_j2k) { if (p_j2k == 00) { return; } if (p_j2k->m_is_decoder) { if (p_j2k->m_specific_param.m_decoder.m_default_tcp != 00) { j2k_tcp_destroy(p_j2k->m_specific_param.m_decoder.m_default_tcp); opj_free(p_j2k->m_specific_param.m_decoder.m_default_tcp); p_j2k->m_specific_param.m_decoder.m_default_tcp = 00; } if (p_j2k->m_specific_param.m_decoder.m_header_data != 00) { opj_free(p_j2k->m_specific_param.m_decoder.m_header_data); p_j2k->m_specific_param.m_decoder.m_header_data = 00; p_j2k->m_specific_param.m_decoder.m_header_data_size = 0; } } else { if (p_j2k->m_specific_param.m_encoder.m_encoded_tile_data) { opj_free(p_j2k->m_specific_param.m_encoder.m_encoded_tile_data); p_j2k->m_specific_param.m_encoder.m_encoded_tile_data = 00; } if (p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer) { opj_free(p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer); p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_buffer = 00; p_j2k->m_specific_param.m_encoder.m_tlm_sot_offsets_current = 00; } if (p_j2k->m_specific_param.m_encoder.m_header_tile_data) { opj_free(p_j2k->m_specific_param.m_encoder.m_header_tile_data); p_j2k->m_specific_param.m_encoder.m_header_tile_data = 00; p_j2k->m_specific_param.m_encoder.m_header_tile_data_size = 0; } } tcd_destroy_v2(p_j2k->m_tcd); j2k_cp_destroy(&(p_j2k->m_cp)); memset(&(p_j2k->m_cp),0,sizeof(opj_cp_v2_t)); opj_procedure_list_destroy(p_j2k->m_procedure_list); p_j2k->m_procedure_list = 00; opj_procedure_list_destroy(p_j2k->m_validation_list); p_j2k->m_procedure_list = 00; j2k_destroy_cstr_index(p_j2k->cstr_index); p_j2k->cstr_index = NULL; opj_image_destroy(p_j2k->m_image); p_j2k->m_image = NULL; opj_free(p_j2k); } void j2k_destroy_cstr_index (opj_codestream_index_t *p_cstr_ind) { if (p_cstr_ind) { if (p_cstr_ind->marker) { opj_free(p_cstr_ind->marker); p_cstr_ind->marker = NULL; } if (p_cstr_ind->tile_index) { // FIXME not used for the moment } opj_free(p_cstr_ind); } } /** * Destroys a tile coding parameter structure. * * @param p_tcp the tile coding parameter to destroy. */ void j2k_tcp_destroy (opj_tcp_v2_t *p_tcp) { if (p_tcp == 00) { return; } if (p_tcp->ppt_buffer != 00) { opj_free(p_tcp->ppt_buffer); p_tcp->ppt_buffer = 00; } if (p_tcp->tccps != 00) { opj_free(p_tcp->tccps); p_tcp->tccps = 00; } if (p_tcp->m_mct_coding_matrix != 00) { opj_free(p_tcp->m_mct_coding_matrix); p_tcp->m_mct_coding_matrix = 00; } if (p_tcp->m_mct_decoding_matrix != 00) { opj_free(p_tcp->m_mct_decoding_matrix); p_tcp->m_mct_decoding_matrix = 00; } if (p_tcp->m_mcc_records) { opj_free(p_tcp->m_mcc_records); p_tcp->m_mcc_records = 00; p_tcp->m_nb_max_mcc_records = 0; p_tcp->m_nb_mcc_records = 0; } if (p_tcp->m_mct_records) { opj_mct_data_t * l_mct_data = p_tcp->m_mct_records; OPJ_UINT32 i; for (i=0;im_nb_mct_records;++i) { if (l_mct_data->m_data) { opj_free(l_mct_data->m_data); l_mct_data->m_data = 00; } ++l_mct_data; } opj_free(p_tcp->m_mct_records); p_tcp->m_mct_records = 00; } if (p_tcp->mct_norms != 00) { opj_free(p_tcp->mct_norms); p_tcp->mct_norms = 00; } if (p_tcp->m_data) { opj_free(p_tcp->m_data); p_tcp->m_data = 00; } } /** * Destroys a coding parameter structure. * * @param p_cp the coding parameter to destroy. */ void j2k_cp_destroy (opj_cp_v2_t *p_cp) { OPJ_UINT32 l_nb_tiles; opj_tcp_v2_t * l_current_tile = 00; OPJ_UINT32 i; if (p_cp == 00) { return; } if (p_cp->tcps != 00) { l_current_tile = p_cp->tcps; l_nb_tiles = p_cp->th * p_cp->tw; for (i = 0; i < l_nb_tiles; ++i) { j2k_tcp_destroy(l_current_tile); ++l_current_tile; } opj_free(p_cp->tcps); p_cp->tcps = 00; } if (p_cp->ppm_buffer != 00) { opj_free(p_cp->ppm_buffer); p_cp->ppm_buffer = 00; } if (p_cp->comment != 00) { opj_free(p_cp->comment); p_cp->comment = 00; } if (! p_cp->m_is_decoder) { if (p_cp->m_specific_param.m_enc.m_matrice) { opj_free(p_cp->m_specific_param.m_enc.m_matrice); p_cp->m_specific_param.m_enc.m_matrice = 00; } } } /** * Reads a tile header. * @param p_j2k the jpeg2000 codec. * @param p_stream the stream to write data to. * @param p_manager the user event manager. */ opj_bool j2k_read_tile_header( opj_j2k_v2_t * p_j2k, OPJ_UINT32 * p_tile_index, OPJ_UINT32 * p_data_size, OPJ_INT32 * p_tile_x0, OPJ_INT32 * p_tile_y0, OPJ_INT32 * p_tile_x1, OPJ_INT32 * p_tile_y1, OPJ_UINT32 * p_nb_comps, opj_bool * p_go_on, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ) { OPJ_UINT32 l_current_marker = J2K_MS_SOT; OPJ_UINT32 l_marker_size; const opj_dec_memory_marker_handler_t * l_marker_handler = 00; opj_tcp_v2_t * l_tcp = NULL; OPJ_UINT32 l_nb_tiles; /* preconditions */ assert(p_stream != 00); assert(p_j2k != 00); assert(p_manager != 00); /* Reach the End Of Codestream ?*/ if (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_EOC){ l_current_marker = J2K_MS_EOC; } /* We need to encounter a SOT marker (a new tile-part header) */ else if (p_j2k->m_specific_param.m_decoder.m_state != J2K_STATE_TPHSOT){ return OPJ_FALSE; } /* Read into the codestream until reach the EOC or ! can_decode ??? FIXME */ while ( (!p_j2k->m_specific_param.m_decoder.m_can_decode) && (l_current_marker != J2K_MS_EOC) ) { /* Try to read until the Start Of Data is detected */ while (l_current_marker != J2K_MS_SOD) { /* Try to read 2 bytes (the marker size) from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* Read 2 bytes from the buffer as the marker size */ opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_marker_size,2); /* Why this condition? FIXME */ if (p_j2k->m_specific_param.m_decoder.m_state & J2K_STATE_TPH){ p_j2k->m_specific_param.m_decoder.m_sot_length -= (l_marker_size + 2); } l_marker_size -= 2; /* Subtract the size of the marker ID already read */ /* Get the marker handler from the marker ID */ l_marker_handler = j2k_get_marker_handler(l_current_marker); /* Check if the marker is known and if it is the right place to find it */ if (! (p_j2k->m_specific_param.m_decoder.m_state & l_marker_handler->states) ) { opj_event_msg_v2(p_manager, EVT_ERROR, "Marker is not compliant with its position\n"); return OPJ_FALSE; } /* FIXME manage case of unknown marker as in the main header ? */ /* Check if the marker size is compatible with the header data size */ if (l_marker_size > p_j2k->m_specific_param.m_decoder.m_header_data_size) { p_j2k->m_specific_param.m_decoder.m_header_data = (OPJ_BYTE*) opj_realloc(p_j2k->m_specific_param.m_decoder.m_header_data,l_marker_size); if (p_j2k->m_specific_param.m_decoder.m_header_data == 00) { return OPJ_FALSE; } p_j2k->m_specific_param.m_decoder.m_header_data_size = l_marker_size; } /* Try to read the rest of the marker segment from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,l_marker_size,p_manager) != l_marker_size) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* Read the marker segment with the correct marker handler */ if (! (*(l_marker_handler->handler))(p_j2k,p_j2k->m_specific_param.m_decoder.m_header_data,l_marker_size,p_manager)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Fail to read the current marker segment (%#x)\n", l_current_marker); return OPJ_FALSE; } if (p_j2k->m_specific_param.m_decoder.m_skip_data) { /* Skip the rest of the tile part header*/ if (opj_stream_skip(p_stream,p_j2k->m_specific_param.m_decoder.m_sot_length,p_manager) != p_j2k->m_specific_param.m_decoder.m_sot_length) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } l_current_marker = J2K_MS_SOD; /* Normally we reached a SOD */ } else { /* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer*/ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* Read 2 bytes from the buffer as the new marker ID */ opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2); } } /* If we didn't skip data before, we need to read the SOD marker*/ if (! p_j2k->m_specific_param.m_decoder.m_skip_data) { /* Try to read the SOD marker and skip data ? FIXME */ if (! j2k_read_sod_v2(p_j2k, p_stream, p_manager)) { return OPJ_FALSE; } if (! p_j2k->m_specific_param.m_decoder.m_can_decode){ /* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* Read 2 bytes from buffer as the new marker ID */ opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2); } } else { /* Indicate we will try to read a new tile-part header*/ p_j2k->m_specific_param.m_decoder.m_skip_data = 0; p_j2k->m_specific_param.m_decoder.m_can_decode = 0; p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_TPHSOT; /* Try to read 2 bytes (the next marker ID) from stream and copy them into the buffer */ if (opj_stream_read_data(p_stream,p_j2k->m_specific_param.m_decoder.m_header_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } /* Read 2 bytes from buffer as the new marker ID */ opj_read_bytes(p_j2k->m_specific_param.m_decoder.m_header_data,&l_current_marker,2); } } /* Current marker is the EOC marker ?*/ if (l_current_marker == J2K_MS_EOC) { if (p_j2k->m_specific_param.m_decoder.m_state != J2K_STATE_EOC ){ p_j2k->m_current_tile_number = 0; p_j2k->m_specific_param.m_decoder.m_state = J2K_STATE_EOC; } } /* FIXME DOC ???*/ if ( ! p_j2k->m_specific_param.m_decoder.m_can_decode) { l_tcp = p_j2k->m_cp.tcps + p_j2k->m_current_tile_number; l_nb_tiles = p_j2k->m_cp.th * p_j2k->m_cp.tw; while( (p_j2k->m_current_tile_number < l_nb_tiles) && (l_tcp->m_data == 00) ) { ++p_j2k->m_current_tile_number; ++l_tcp; } if (p_j2k->m_current_tile_number == l_nb_tiles) { *p_go_on = OPJ_FALSE; return OPJ_TRUE; } } /*FIXME ???*/ if (! tcd_init_decode_tile(p_j2k->m_tcd, p_j2k->m_current_tile_number)) { opj_event_msg_v2(p_manager, EVT_ERROR, "Cannot decode tile, memory error\n"); return OPJ_FALSE; } opj_event_msg_v2(p_manager, EVT_INFO, "Header of tile %d / %d has been read.\n", p_j2k->m_current_tile_number +1, p_j2k->m_cp.th * p_j2k->m_cp.tw); *p_tile_index = p_j2k->m_current_tile_number; *p_go_on = OPJ_TRUE; *p_data_size = tcd_get_decoded_tile_size(p_j2k->m_tcd); *p_tile_x0 = p_j2k->m_tcd->tcd_image->tiles->x0; *p_tile_y0 = p_j2k->m_tcd->tcd_image->tiles->y0; *p_tile_x1 = p_j2k->m_tcd->tcd_image->tiles->x1; *p_tile_y1 = p_j2k->m_tcd->tcd_image->tiles->y1; *p_nb_comps = p_j2k->m_tcd->tcd_image->tiles->numcomps; p_j2k->m_specific_param.m_decoder.m_state |= 0x0080;// FIXME J2K_DEC_STATE_DATA; return OPJ_TRUE; } opj_bool j2k_decode_tile ( opj_j2k_v2_t * p_j2k, OPJ_UINT32 p_tile_index, OPJ_BYTE * p_data, OPJ_UINT32 p_data_size, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager ) { OPJ_UINT32 l_current_marker; OPJ_BYTE l_data [2]; opj_tcp_v2_t * l_tcp; /* preconditions */ assert(p_stream != 00); assert(p_j2k != 00); assert(p_manager != 00); if ( !(p_j2k->m_specific_param.m_decoder.m_state & 0x0080/*FIXME J2K_DEC_STATE_DATA*/) || (p_tile_index != p_j2k->m_current_tile_number) ) { return OPJ_FALSE; } l_tcp = &(p_j2k->m_cp.tcps[p_tile_index]); if (! l_tcp->m_data) { j2k_tcp_destroy(&(p_j2k->m_cp.tcps[p_tile_index])); return OPJ_FALSE; } if (! tcd_decode_tile_v2( p_j2k->m_tcd, l_tcp->m_data, l_tcp->m_data_size, p_tile_index, p_j2k->cstr_index) ) { j2k_tcp_destroy(l_tcp); p_j2k->m_specific_param.m_decoder.m_state |= 0x8000;//FIXME J2K_DEC_STATE_ERR; return OPJ_FALSE; } if (! tcd_update_tile_data(p_j2k->m_tcd,p_data,p_data_size)) { return OPJ_FALSE; } j2k_tcp_destroy(l_tcp); p_j2k->m_tcd->tcp = 0; p_j2k->m_specific_param.m_decoder.m_can_decode = 0; p_j2k->m_specific_param.m_decoder.m_state &= (~ (0x0080));// FIXME J2K_DEC_STATE_DATA); if (p_j2k->m_specific_param.m_decoder.m_state != 0x0100){ //FIXME J2K_DEC_STATE_EOC) if (opj_stream_read_data(p_stream,l_data,2,p_manager) != 2) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short\n"); return OPJ_FALSE; } opj_read_bytes(l_data,&l_current_marker,2); if (l_current_marker == J2K_MS_EOC) { p_j2k->m_current_tile_number = 0; p_j2k->m_specific_param.m_decoder.m_state = 0x0100;//FIXME J2K_DEC_STATE_EOC; } else if (l_current_marker != J2K_MS_SOT) { opj_event_msg_v2(p_manager, EVT_ERROR, "Stream too short, expected SOT\n"); return OPJ_FALSE; } } return OPJ_TRUE; } opj_bool j2k_update_image_data (opj_tcd_v2_t * p_tcd, OPJ_BYTE * p_data) { OPJ_UINT32 i,j,k = 0; OPJ_UINT32 l_width,l_height,l_offset_x,l_offset_y; opj_image_comp_t * l_img_comp = 00; opj_tcd_tilecomp_v2_t * l_tilec = 00; opj_image_t * l_image = 00; OPJ_UINT32 l_size_comp, l_remaining; OPJ_UINT32 l_dest_stride; OPJ_INT32 * l_dest_ptr; opj_tcd_resolution_v2_t* l_res= 00; l_tilec = p_tcd->tcd_image->tiles->comps; l_image = p_tcd->image; l_img_comp = l_image->comps; for (i=0;iimage->numcomps;++i) { if (!l_img_comp->data) { l_img_comp->data = (OPJ_INT32*) opj_malloc(l_img_comp->w * l_img_comp->h * sizeof(OPJ_INT32)); if (! l_img_comp->data) { return OPJ_FALSE; } memset(l_img_comp->data,0,l_img_comp->w * l_img_comp->h * sizeof(OPJ_INT32)); } l_size_comp = l_img_comp->prec >> 3; /*(/ 8)*/ l_remaining = l_img_comp->prec & 7; /* (%8) */ l_res = l_tilec->resolutions + l_img_comp->resno_decoded; if (l_remaining) { ++l_size_comp; } if (l_size_comp == 3) { l_size_comp = 4; } l_width = (l_res->x1 - l_res->x0); l_height = (l_res->y1 - l_res->y0); l_dest_stride = (l_img_comp->w) - l_width; l_offset_x = int_ceildivpow2(l_img_comp->x0, l_img_comp->factor); l_offset_y = int_ceildivpow2(l_img_comp->y0, l_img_comp->factor); l_dest_ptr = l_img_comp->data + (l_res->x0 - l_offset_x) + (l_res->y0 - l_offset_y) * l_img_comp->w; switch (l_size_comp) { case 1: { OPJ_CHAR * l_src_ptr = (OPJ_CHAR*) p_data; if (l_img_comp->sgnd) { for (j=0;jsgnd) { for (j=0;jm_cp); /* Check if we are read the main header */ if (p_j2k->m_specific_param.m_decoder.m_state != J2K_STATE_TPHSOT) { // FIXME J2K_DEC_STATE_TPHSOT) opj_event_msg_v2(p_manager, EVT_ERROR, "Need to decode the main header before begin to decode the remaining codestream"); return OPJ_FALSE; } /* ----- */ /* Check if the positions provided by the user are correct */ /* Left */ if (p_start_x > l_cp->tx0 + l_cp->tw * l_cp->tdx) { opj_event_msg_v2(p_manager, EVT_ERROR, "Left position of the decoded area (ROI_x0=%d) is outside the tile area (XTOsiz + nb_tw x XTsiz=%d).\n", p_start_x, l_cp->tx0 + l_cp->tw * l_cp->tdx); return OPJ_FALSE; } else if (p_start_x < l_cp->tx0){ opj_event_msg_v2(p_manager, EVT_WARNING, "Left position of the decoded area (ROI_x0=%d) is outside the tile area (XTOsiz=%d).\n", p_start_x, l_cp->tx0); p_j2k->m_specific_param.m_decoder.m_start_tile_x = 0; } else p_j2k->m_specific_param.m_decoder.m_start_tile_x = (p_start_x - l_cp->tx0) / l_cp->tdx; /* Up */ if (p_start_y > l_cp->ty0 + l_cp->th * l_cp->tdy){ opj_event_msg_v2(p_manager, EVT_ERROR, "Up position of the decoded area (ROI_y0=%d) is outside the tile area (YTOsiz + nb_th x YTsiz=%d).\n", p_start_y, l_cp->ty0 + l_cp->th * l_cp->tdy); return OPJ_FALSE; } else if (p_start_y < l_cp->ty0){ opj_event_msg_v2(p_manager, EVT_WARNING, "Up position of the decoded area (ROI_y0=%d) is outside the tile area (YTOsiz=%d).\n", p_start_y, l_cp->ty0); p_j2k->m_specific_param.m_decoder.m_start_tile_y = 0; } else p_j2k->m_specific_param.m_decoder.m_start_tile_y = (p_start_y - l_cp->ty0) / l_cp->tdy; /* Right */ if (p_end_x < l_cp->tx0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Right position of the decoded area (ROI_x1=%d) is outside the tile area (XTOsiz=%d).\n", p_end_x, l_cp->tx0); return OPJ_FALSE; } else if (p_end_x > l_cp->tx0 + l_cp->tw * l_cp->tdx) { opj_event_msg_v2(p_manager, EVT_WARNING, "Right position of the decoded area (ROI_x1=%d) is outside the tile area (XTOsiz + nb_tw x XTsiz=%d).\n", p_end_x, l_cp->tx0 + l_cp->tw * l_cp->tdx); p_j2k->m_specific_param.m_decoder.m_end_tile_x = l_cp->tw; // FIXME (-1) ??? } else p_j2k->m_specific_param.m_decoder.m_end_tile_x = int_ceildiv((p_end_x - l_cp->tx0), l_cp->tdx); /* Bottom */ if (p_end_y < l_cp->ty0) { opj_event_msg_v2(p_manager, EVT_ERROR, "Right position of the decoded area (ROI_y1=%d) is outside the tile area (YTOsiz=%d).\n", p_end_y, l_cp->ty0); return OPJ_FALSE; } if (p_end_y > l_cp->ty0 + l_cp->th * l_cp->tdy){ opj_event_msg_v2(p_manager, EVT_WARNING, "Bottom position of the decoded area (ROI_y1=%d) is outside the tile area (YTOsiz + nb_th x YTsiz=%d).\n", p_end_y, l_cp->ty0 + l_cp->th * l_cp->tdy); p_j2k->m_specific_param.m_decoder.m_start_tile_y = l_cp->th; // FIXME (-1) ??? } else p_j2k->m_specific_param.m_decoder.m_end_tile_y = int_ceildiv((p_end_y - l_cp->ty0), l_cp->tdy); /* ----- */ p_j2k->m_specific_param.m_decoder.m_discard_tiles = 1; return OPJ_TRUE; } /* ----------------------------------------------------------------------- */ /* J2K / JPT decoder interface */ /* ----------------------------------------------------------------------- */ /** * Creates a J2K decompression structure. * * @return a handle to a J2K decompressor if successful, NULL otherwise. */ opj_j2k_v2_t* j2k_create_decompress_v2() { opj_j2k_v2_t *l_j2k = (opj_j2k_v2_t*) opj_malloc(sizeof(opj_j2k_v2_t)); if (!l_j2k) { return 00; } memset(l_j2k,0,sizeof(opj_j2k_v2_t)); l_j2k->m_is_decoder = 1; l_j2k->m_cp.m_is_decoder = 1; l_j2k->m_specific_param.m_decoder.m_default_tcp = (opj_tcp_v2_t*) opj_malloc(sizeof(opj_tcp_v2_t)); if (!l_j2k->m_specific_param.m_decoder.m_default_tcp) { j2k_destroy(l_j2k); return 00; } memset(l_j2k->m_specific_param.m_decoder.m_default_tcp,0,sizeof(opj_tcp_v2_t)); l_j2k->m_specific_param.m_decoder.m_header_data = (OPJ_BYTE *) opj_malloc(J2K_DEFAULT_HEADER_SIZE); if (! l_j2k->m_specific_param.m_decoder.m_header_data) { j2k_destroy(l_j2k); return 00; } l_j2k->m_specific_param.m_decoder.m_header_data_size = J2K_DEFAULT_HEADER_SIZE; /* codestream index creation */ l_j2k->cstr_index = j2k_create_cstr_index(); /*(opj_codestream_index_t*) opj_malloc(sizeof(opj_codestream_index_t)); if (!l_j2k->cstr_index){ j2k_destroy(l_j2k); return NULL; } l_j2k->cstr_index->marker = (opj_marker_info_t*) opj_malloc(100 * sizeof(opj_marker_info_t)); */ /* validation list creation */ l_j2k->m_validation_list = opj_procedure_list_create(); if (! l_j2k->m_validation_list) { j2k_destroy(l_j2k); return 00; } /* execution list creation */ l_j2k->m_procedure_list = opj_procedure_list_create(); if (! l_j2k->m_procedure_list) { j2k_destroy(l_j2k); return 00; } return l_j2k; } opj_codestream_index_t* j2k_create_cstr_index(void) { opj_codestream_index_t* cstr_index = (opj_codestream_index_t*) opj_calloc(1,sizeof(opj_codestream_index_t)); if (!cstr_index) return NULL; cstr_index->maxmarknum = 100; cstr_index->marknum = 0; cstr_index->marker = (opj_marker_info_t*) opj_calloc(cstr_index->maxmarknum, sizeof(opj_marker_info_t)); if (!cstr_index-> marker) return NULL; cstr_index->tile_index = NULL; return cstr_index; } /** * Reads a SPCod or SPCoc element, i.e. the coding style of a given component of a tile. * @param p_header_data the data contained in the COM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the COM marker. * @param p_manager the user event manager. */ opj_bool j2k_read_SPCod_SPCoc( opj_j2k_v2_t *p_j2k, OPJ_UINT32 compno, OPJ_BYTE * p_header_data, OPJ_UINT32 * p_header_size, struct opj_event_mgr * p_manager ) { OPJ_UINT32 i, l_tmp; opj_cp_v2_t *l_cp = NULL; opj_tcp_v2_t *l_tcp = NULL; opj_tccp_t *l_tccp = NULL; OPJ_BYTE * l_current_ptr = NULL; /* preconditions */ assert(p_j2k != 00); assert(p_manager != 00); assert(p_header_data != 00); l_cp = &(p_j2k->m_cp); l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH) ? &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; /* precondition again */ assert(compno < p_j2k->m_image->numcomps); l_tccp = &l_tcp->tccps[compno]; l_current_ptr = p_header_data; /* make sure room is sufficient */ if (*p_header_size < 5) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading SPCod SPCoc element\n"); return OPJ_FALSE; } opj_read_bytes(l_current_ptr, &l_tccp->numresolutions ,1); /* SPcox (D) */ ++l_tccp->numresolutions; /* tccp->numresolutions = read() + 1 */ ++l_current_ptr; /* If user wants to remove more resolutions than the codestream contains, return error */ if (l_cp->m_specific_param.m_dec.m_reduce >= l_tccp->numresolutions) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error decoding component %d.\nThe number of resolutions to remove is higher than the number " "of resolutions of this component\nModify the cp_reduce parameter.\n\n", compno); p_j2k->m_specific_param.m_decoder.m_state |= 0x8000;// FIXME J2K_DEC_STATE_ERR; return OPJ_FALSE; } opj_read_bytes(l_current_ptr,&l_tccp->cblkw ,1); /* SPcoc (E) */ ++l_current_ptr; l_tccp->cblkw += 2; opj_read_bytes(l_current_ptr,&l_tccp->cblkh ,1); /* SPcoc (F) */ ++l_current_ptr; l_tccp->cblkh += 2; opj_read_bytes(l_current_ptr,&l_tccp->cblksty ,1); /* SPcoc (G) */ ++l_current_ptr; opj_read_bytes(l_current_ptr,&l_tccp->qmfbid ,1); /* SPcoc (H) */ ++l_current_ptr; *p_header_size = *p_header_size - 5; /* use custom precinct size ? */ if (l_tccp->csty & J2K_CCP_CSTY_PRT) { if (*p_header_size < l_tccp->numresolutions) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading SPCod SPCoc element\n"); return OPJ_FALSE; } for (i = 0; i < l_tccp->numresolutions; ++i) { opj_read_bytes(l_current_ptr,&l_tmp ,1); /* SPcoc (I_i) */ ++l_current_ptr; l_tccp->prcw[i] = l_tmp & 0xf; l_tccp->prch[i] = l_tmp >> 4; } *p_header_size = *p_header_size - l_tccp->numresolutions; } else { /* set default size for the precinct width and height */ for (i = 0; i < l_tccp->numresolutions; ++i) { l_tccp->prcw[i] = 15; l_tccp->prch[i] = 15; } } #ifdef WIP_REMOVE_MSD /* INDEX >> */ if (p_j2k->cstr_info && compno == 0) { OPJ_UINT32 l_data_size = l_tccp->numresolutions * sizeof(OPJ_UINT32); p_j2k->cstr_info->tile[p_j2k->m_current_tile_number].tccp_info[compno].cblkh = l_tccp->cblkh; p_j2k->cstr_info->tile[p_j2k->m_current_tile_number].tccp_info[compno].cblkw = l_tccp->cblkw; p_j2k->cstr_info->tile[p_j2k->m_current_tile_number].tccp_info[compno].numresolutions = l_tccp->numresolutions; p_j2k->cstr_info->tile[p_j2k->m_current_tile_number].tccp_info[compno].cblksty = l_tccp->cblksty; p_j2k->cstr_info->tile[p_j2k->m_current_tile_number].tccp_info[compno].qmfbid = l_tccp->qmfbid; memcpy(p_j2k->cstr_info->tile[p_j2k->m_current_tile_number].pdx,l_tccp->prcw, l_data_size); memcpy(p_j2k->cstr_info->tile[p_j2k->m_current_tile_number].pdy,l_tccp->prch, l_data_size); } /* << INDEX */ #endif return OPJ_TRUE; } /** * Copies the tile component parameters of all the component from the first tile component. * * @param p_j2k the J2k codec. */ void j2k_copy_tile_component_parameters( opj_j2k_v2_t *p_j2k ) { // loop OPJ_UINT32 i; opj_cp_v2_t *l_cp = NULL; opj_tcp_v2_t *l_tcp = NULL; opj_tccp_t *l_ref_tccp = NULL, *l_copied_tccp = NULL; OPJ_UINT32 l_prc_size; /* preconditions */ assert(p_j2k != 00); l_cp = &(p_j2k->m_cp); l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH) ? /* FIXME J2K_DEC_STATE_TPH*/ &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; l_ref_tccp = &l_tcp->tccps[0]; l_copied_tccp = l_ref_tccp + 1; l_prc_size = l_ref_tccp->numresolutions * sizeof(OPJ_UINT32); for (i=1; im_image->numcomps; ++i) { l_copied_tccp->numresolutions = l_ref_tccp->numresolutions; l_copied_tccp->cblkw = l_ref_tccp->cblkw; l_copied_tccp->cblkh = l_ref_tccp->cblkh; l_copied_tccp->cblksty = l_ref_tccp->cblksty; l_copied_tccp->qmfbid = l_ref_tccp->qmfbid; memcpy(l_copied_tccp->prcw,l_ref_tccp->prcw,l_prc_size); memcpy(l_copied_tccp->prch,l_ref_tccp->prch,l_prc_size); ++l_copied_tccp; } } /** * Reads a SQcd or SQcc element, i.e. the quantization values of a band. * * @param p_comp_no the component being targeted. * @param p_header_data the data contained in the COM box. * @param p_j2k the jpeg2000 codec. * @param p_header_size the size of the data contained in the COM marker. * @param p_manager the user event manager. */ opj_bool j2k_read_SQcd_SQcc( opj_j2k_v2_t *p_j2k, OPJ_UINT32 p_comp_no, OPJ_BYTE* p_header_data, OPJ_UINT32 * p_header_size, struct opj_event_mgr * p_manager ) { // loop OPJ_UINT32 l_band_no; opj_cp_v2_t *l_cp = 00; opj_tcp_v2_t *l_tcp = 00; opj_tccp_t *l_tccp = 00; OPJ_BYTE * l_current_ptr = 00; OPJ_UINT32 l_tmp, l_num_band; // preconditions assert(p_j2k != 00); assert(p_manager != 00); assert(p_header_data != 00); l_cp = &(p_j2k->m_cp); // come from tile part header or main header ? l_tcp = (p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH) ? /*FIXME J2K_DEC_STATE_TPH*/ &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; // precondition again assert(p_comp_no < p_j2k->m_image->numcomps); l_tccp = &l_tcp->tccps[p_comp_no]; l_current_ptr = p_header_data; if (*p_header_size < 1) { opj_event_msg_v2(p_manager, EVT_ERROR, "Error reading SQcd or SQcc element\n"); return OPJ_FALSE; } *p_header_size -= 1; opj_read_bytes(l_current_ptr, &l_tmp ,1); /* Sqcx */ ++l_current_ptr; l_tccp->qntsty = l_tmp & 0x1f; l_tccp->numgbits = l_tmp >> 5; if (l_tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) { l_num_band = 1; } else { l_num_band = (l_tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) ? (*p_header_size) : (*p_header_size) / 2; if( l_num_band > J2K_MAXBANDS ) { opj_event_msg_v2(p_manager, EVT_WARNING, "While reading CCP_QNTSTY element inside QCD or QCC marker segment, " "number of subbands (%d) is greater to J2K_MAXBANDS (%d). So we limiting the number of elements stored to " "J2K_MAXBANDS (%d) and skip the other. \n", l_num_band, J2K_MAXBANDS, J2K_MAXBANDS); //return OPJ_FALSE; } } #ifdef USE_JPWL if (l_cp->correct) { /* if JPWL is on, we check whether there are too many subbands */ if ((l_num_band < 0) || (l_num_band >= J2K_MAXBANDS)) { opj_event_msg_v2(p_manager, JPWL_ASSUME ? EVT_WARNING : EVT_ERROR, "JPWL: bad number of subbands in Sqcx (%d)\n", l_num_band); if (!JPWL_ASSUME) { opj_event_msg_v2(p_manager, EVT_ERROR, "JPWL: giving up\n"); return OPJ_FALSE; } /* we try to correct */ l_num_band = 1; opj_event_msg_v2(p_manager, EVT_WARNING, "- trying to adjust them\n" "- setting number of bands to %d => HYPOTHESIS!!!\n", l_num_band); }; }; #endif /* USE_JPWL */ if (l_tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) { for (l_band_no = 0; l_band_no < l_num_band; l_band_no++) { opj_read_bytes(l_current_ptr, &l_tmp ,1); /* SPqcx_i */ ++l_current_ptr; if (l_band_no < J2K_MAXBANDS){ l_tccp->stepsizes[l_band_no].expn = l_tmp>>3; l_tccp->stepsizes[l_band_no].mant = 0; } } *p_header_size = *p_header_size - l_num_band; } else { for (l_band_no = 0; l_band_no < l_num_band; l_band_no++) { opj_read_bytes(l_current_ptr, &l_tmp ,2); /* SPqcx_i */ l_current_ptr+=2; if (l_band_no < J2K_MAXBANDS){ l_tccp->stepsizes[l_band_no].expn = l_tmp >> 11; l_tccp->stepsizes[l_band_no].mant = l_tmp & 0x7ff; } } *p_header_size = *p_header_size - 2*l_num_band; } /* Add Antonin : if scalar_derived -> compute other stepsizes */ if (l_tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) { for (l_band_no = 1; l_band_no < J2K_MAXBANDS; l_band_no++) { l_tccp->stepsizes[l_band_no].expn = ((l_tccp->stepsizes[0].expn) - ((l_band_no - 1) / 3) > 0) ? (l_tccp->stepsizes[0].expn) - ((l_band_no - 1) / 3) : 0; l_tccp->stepsizes[l_band_no].mant = l_tccp->stepsizes[0].mant; } } return OPJ_TRUE; } /** * Copies the tile component parameters of all the component from the first tile component. * * @param p_j2k the J2k codec. */ void j2k_copy_tile_quantization_parameters( opj_j2k_v2_t *p_j2k ) { OPJ_UINT32 i; opj_cp_v2_t *l_cp = NULL; opj_tcp_v2_t *l_tcp = NULL; opj_tccp_t *l_ref_tccp = NULL; opj_tccp_t *l_copied_tccp = NULL; OPJ_UINT32 l_size; /* preconditions */ assert(p_j2k != 00); l_cp = &(p_j2k->m_cp); l_tcp = p_j2k->m_specific_param.m_decoder.m_state == J2K_STATE_TPH ? &l_cp->tcps[p_j2k->m_current_tile_number] : p_j2k->m_specific_param.m_decoder.m_default_tcp; l_ref_tccp = &l_tcp->tccps[0]; l_copied_tccp = l_ref_tccp + 1; l_size = J2K_MAXBANDS * sizeof(opj_stepsize_t); for (i=1;im_image->numcomps;++i) { l_copied_tccp->qntsty = l_ref_tccp->qntsty; l_copied_tccp->numgbits = l_ref_tccp->numgbits; memcpy(l_copied_tccp->stepsizes,l_ref_tccp->stepsizes,l_size); ++l_copied_tccp; } } /** * Dump some elements from the J2K decompression structure . * *@param p_j2k the jpeg2000 codec. *@param flag flag to describe what elments are dump. *@param out_stream output stream where dump the elements. * */ void j2k_dump (opj_j2k_v2_t* p_j2k, OPJ_INT32 flag, FILE* out_stream) { /* Check if the flag is compatible with j2k file*/ if ( (flag & OPJ_JP2_INFO) || (flag & OPJ_JP2_IND)){ fprintf(out_stream, "Wrong flag\n"); return; } /* Dump the image_header */ if (flag & OPJ_IMG_INFO){ if (p_j2k->m_image) j2k_dump_image_header(p_j2k->m_image, 0, out_stream); } /* Dump the codestream info from main header */ if (flag & OPJ_J2K_MH_INFO){ j2k_dump_MH_info(p_j2k, out_stream); } /* Dump the codestream info of the current tile */ if (flag & OPJ_J2K_TH_INFO){ } /* Dump the codestream index from main header */ if (flag & OPJ_J2K_MH_IND){ j2k_dump_MH_index(p_j2k, out_stream); } /* Dump the codestream index of the current tile */ if (flag & OPJ_J2K_TH_IND){ } } /** * Dump index elements of the codestream extract from the main header. * *@param p_j2k the jpeg2000 codec. *@param out_stream output stream where dump the elements. * */ void j2k_dump_MH_index(opj_j2k_v2_t* p_j2k, FILE* out_stream) { opj_codestream_index_t* cstr_index = p_j2k->cstr_index; OPJ_UINT32 it_marker; fprintf(out_stream, "Codestream index from main header: {\n"); fprintf(out_stream, "\t Main header start position=%d\n\t Main header end position=%d\n", cstr_index->main_head_start, cstr_index->main_head_end); fprintf(out_stream, "\t Marker list: {\n"); for (it_marker=0; it_marker < cstr_index->marknum ; it_marker++){ fprintf(out_stream, "\t\t type=%#x, pos=%d, len=%d\n", cstr_index->marker[it_marker].type, cstr_index->marker[it_marker].pos, cstr_index->marker[it_marker].len ); } fprintf(out_stream, "\t }\n}\n"); } /** * Dump info elements of the codestream extract from the main header. * *@param p_j2k the jpeg2000 codec. *@param out_stream output stream where dump the elements. * */ void j2k_dump_MH_info(opj_j2k_v2_t* p_j2k, FILE* out_stream) { opj_tcp_v2_t * l_default_tile=NULL; fprintf(out_stream, "Codestream info from main header: {\n"); fprintf(out_stream, "\t tx0=%d, ty0=%d\n", p_j2k->m_cp.tx0, p_j2k->m_cp.ty0); fprintf(out_stream, "\t tdx=%d, tdy=%d\n", p_j2k->m_cp.tdx, p_j2k->m_cp.tdy); fprintf(out_stream, "\t tw=%d, th=%d\n", p_j2k->m_cp.tw, p_j2k->m_cp.th); l_default_tile = p_j2k->m_specific_param.m_decoder.m_default_tcp; if (l_default_tile) { OPJ_INT32 compno; OPJ_INT32 numcomps = p_j2k->m_image->numcomps; fprintf(out_stream, "\t default tile {\n"); fprintf(out_stream, "\t\t csty=%#x\n", l_default_tile->csty); fprintf(out_stream, "\t\t prg=%#x\n", l_default_tile->prg); fprintf(out_stream, "\t\t numlayers=%d\n", l_default_tile->numlayers); fprintf(out_stream, "\t\t mct=%x\n", l_default_tile->mct); for (compno = 0; compno < numcomps; compno++) { opj_tccp_t *l_tccp = &(l_default_tile->tccps[compno]); OPJ_INT32 resno, bandno, numbands; /* coding style*/ fprintf(out_stream, "\t\t comp %d {\n", compno); fprintf(out_stream, "\t\t\t csty=%#x\n", l_tccp->csty); fprintf(out_stream, "\t\t\t numresolutions=%d\n", l_tccp->numresolutions); fprintf(out_stream, "\t\t\t cblkw=2^%d\n", l_tccp->cblkw); fprintf(out_stream, "\t\t\t cblkh=2^%d\n", l_tccp->cblkh); fprintf(out_stream, "\t\t\t cblksty=%#x\n", l_tccp->cblksty); fprintf(out_stream, "\t\t\t qmfbid=%d\n", l_tccp->qmfbid); fprintf(out_stream, "\t\t\t preccintsize (w,h)="); for (resno = 0; resno < l_tccp->numresolutions; resno++) { fprintf(out_stream, "(%d,%d) ", l_tccp->prcw[resno], l_tccp->prch[resno]); } fprintf(out_stream, "\n"); /* quantization style*/ fprintf(out_stream, "\t\t\t qntsty=%d\n", l_tccp->qntsty); fprintf(out_stream, "\t\t\t numgbits=%d\n", l_tccp->numgbits); fprintf(out_stream, "\t\t\t stepsizes (m,e)="); numbands = (l_tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ? 1 : l_tccp->numresolutions * 3 - 2; for (bandno = 0; bandno < numbands; bandno++) { fprintf(out_stream, "(%d,%d) ", l_tccp->stepsizes[bandno].mant, l_tccp->stepsizes[bandno].expn); } fprintf(out_stream, "\n"); /* RGN value*/ fprintf(out_stream, "\t\t\t roishift=%d\n", l_tccp->roishift); fprintf(out_stream, "\t\t }\n"); } /*end of component of default tile*/ fprintf(out_stream, "\t }\n"); /*end of default tile*/ } fprintf(out_stream, "}\n"); } /** * Dump an image header structure. * *@param img_header the image header to dump. *@param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function *@param out_stream output stream where dump the elements. */ void j2k_dump_image_header(opj_image_t* img_header, opj_bool dev_dump_flag, FILE* out_stream) { char tab[2]; if (dev_dump_flag){ fprintf(stdout, "[DEV] Dump a image_header struct {\n"); tab[0] = '\0'; } else { fprintf(out_stream, "Image info {\n"); tab[0] = '\t';tab[1] = '\0'; } fprintf(out_stream, "%s x0=%d, y0=%d\n", tab, img_header->x0, img_header->y0); fprintf(out_stream, "%s x1=%d, y1=%d\n", tab, img_header->x1, img_header->y1); fprintf(out_stream, "%s numcomps=%d\n", tab, img_header->numcomps); if (img_header->comps){ int compno; for (compno = 0; compno < img_header->numcomps; compno++) { fprintf(out_stream, "%s\t component %d {\n", tab, compno); j2k_dump_image_comp_header(&(img_header->comps[compno]), dev_dump_flag, out_stream); fprintf(out_stream,"%s}\n",tab); } } fprintf(out_stream, "}\n"); } /** * Dump a component image header structure. * *@param comp_header the component image header to dump. *@param dev_dump_flag flag to describe if we are in the case of this function is use outside j2k_dump function *@param out_stream output stream where dump the elements. */ void j2k_dump_image_comp_header(opj_image_comp_t* comp_header, opj_bool dev_dump_flag, FILE* out_stream) { char tab[3]; if (dev_dump_flag){ fprintf(stdout, "[DEV] Dump a image_comp_header struct {\n"); tab[0] = '\0'; } else { tab[0] = '\t';tab[1] = '\t';tab[2] = '\0'; } fprintf(out_stream, "%s dx=%d, dy=%d\n", tab, comp_header->dx, comp_header->dy); fprintf(out_stream, "%s prec=%d\n", tab, comp_header->prec); fprintf(out_stream, "%s sgnd=%d\n", tab, comp_header->sgnd); if (dev_dump_flag) fprintf(out_stream, "}\n"); } /** * Get the codestream info from a JPEG2000 codec. * *@param p_j2k the component image header to dump. * *@return the codestream information extract from the jpg2000 codec */ opj_codestream_info_v2_t* j2k_get_cstr_info(opj_j2k_v2_t* p_j2k) { OPJ_UINT16 compno; OPJ_UINT16 numcomps = p_j2k->m_image->numcomps; opj_tcp_v2_t *l_default_tile; opj_codestream_info_v2_t* cstr_info = (opj_codestream_info_v2_t*) opj_calloc(1,sizeof(opj_codestream_info_v2_t)); cstr_info->nbcomps = p_j2k->m_image->numcomps; cstr_info->tx0 = p_j2k->m_cp.tx0; cstr_info->ty0 = p_j2k->m_cp.ty0; cstr_info->tdx = p_j2k->m_cp.tdx; cstr_info->tdy = p_j2k->m_cp.tdy; cstr_info->tw = p_j2k->m_cp.tw; cstr_info->th = p_j2k->m_cp.th; cstr_info->tile_info = NULL; /* Not fill from the main header*/ l_default_tile = p_j2k->m_specific_param.m_decoder.m_default_tcp; cstr_info->m_default_tile_info.csty = l_default_tile->csty; cstr_info->m_default_tile_info.prg = l_default_tile->prg; cstr_info->m_default_tile_info.numlayers = l_default_tile->numlayers; cstr_info->m_default_tile_info.mct = l_default_tile->mct; cstr_info->m_default_tile_info.tccp_info = (opj_tccp_info_t*) opj_calloc(cstr_info->nbcomps, sizeof(opj_tccp_info_t)); for (compno = 0; compno < numcomps; compno++) { opj_tccp_t *l_tccp = &(l_default_tile->tccps[compno]); opj_tccp_info_t *l_tccp_info = &(cstr_info->m_default_tile_info.tccp_info[compno]); OPJ_INT32 bandno, numbands; /* coding style*/ l_tccp_info->csty = l_tccp->csty; l_tccp_info->numresolutions = l_tccp->numresolutions; l_tccp_info->cblkw = l_tccp->cblkw; l_tccp_info->cblkh = l_tccp->cblkh; l_tccp_info->cblksty = l_tccp->cblksty; l_tccp_info->qmfbid = l_tccp->qmfbid; if (l_tccp->numresolutions < J2K_MAXRLVLS) { memcpy(l_tccp_info->prch, l_tccp->prch, l_tccp->numresolutions); memcpy(l_tccp_info->prcw, l_tccp->prcw, l_tccp->numresolutions); } /* quantization style*/ l_tccp_info->qntsty = l_tccp->qntsty; l_tccp_info->numgbits = l_tccp->numgbits; numbands = (l_tccp->qntsty == J2K_CCP_QNTSTY_SIQNT) ? 1 : l_tccp->numresolutions * 3 - 2; if (numbands < J2K_MAXBANDS) { for (bandno = 0; bandno < numbands; bandno++) { l_tccp_info->stepsizes_mant[bandno] = l_tccp->stepsizes[bandno].mant; l_tccp_info->stepsizes_expn[bandno] = l_tccp->stepsizes[bandno].expn; } } /* RGN value*/ l_tccp_info->roishift = l_tccp->roishift; } return cstr_info; } /** * Get the codestream index from a JPEG2000 codec. * *@param p_j2k the component image header to dump. * *@return the codestream index extract from the jpg2000 codec */ opj_codestream_index_t* j2k_get_cstr_index(opj_j2k_v2_t* p_j2k) { opj_codestream_index_t* l_cstr_index = (opj_codestream_index_t*) opj_calloc(1,sizeof(opj_codestream_index_t)); if (!l_cstr_index) return NULL; l_cstr_index->main_head_start = p_j2k->cstr_index->main_head_start; l_cstr_index->main_head_end = p_j2k->cstr_index->main_head_end; l_cstr_index->codestream_size = p_j2k->cstr_index->codestream_size; l_cstr_index->maxmarknum = p_j2k->cstr_index->maxmarknum; l_cstr_index->marknum = p_j2k->cstr_index->marknum; l_cstr_index->marker = (opj_marker_info_t*)opj_malloc(l_cstr_index->marknum*sizeof(opj_marker_info_t)); if (!l_cstr_index->marker) return NULL; memcpy(l_cstr_index->marker, p_j2k->cstr_index->marker, l_cstr_index->marknum * sizeof(opj_marker_info_t) ); l_cstr_index->tile_index = NULL; /* FIXME not used for the moment*/ return l_cstr_index; } /** * Reads the tiles. */ opj_bool j2k_decode_tiles ( opj_j2k_v2_t *p_j2k, opj_stream_private_t *p_stream, opj_event_mgr_t * p_manager) { opj_bool l_go_on = OPJ_TRUE; OPJ_UINT32 l_current_tile_no; OPJ_UINT32 l_data_size,l_max_data_size; OPJ_INT32 l_tile_x0,l_tile_y0,l_tile_x1,l_tile_y1; OPJ_UINT32 l_nb_comps; OPJ_BYTE * l_current_data; l_current_data = (OPJ_BYTE*)opj_malloc(1000); if (! l_current_data) { return OPJ_FALSE; } l_max_data_size = 1000; while (OPJ_TRUE) { if (! j2k_read_tile_header( p_j2k, &l_current_tile_no, &l_data_size, &l_tile_x0, &l_tile_y0, &l_tile_x1, &l_tile_y1, &l_nb_comps, &l_go_on, p_stream, p_manager)) { opj_free(l_current_data); return OPJ_FALSE; } if (! l_go_on) { break; } if (l_data_size > l_max_data_size) { l_current_data = (OPJ_BYTE*)opj_realloc(l_current_data,l_data_size); if (! l_current_data) { return OPJ_FALSE; } l_max_data_size = l_data_size; } if (! j2k_decode_tile(p_j2k,l_current_tile_no,l_current_data,l_data_size,p_stream,p_manager)) { opj_free(l_current_data); return OPJ_FALSE; } opj_event_msg_v2(p_manager, EVT_INFO, "Tile %d/%d has been decode.\n", l_current_tile_no +1, p_j2k->m_cp.th * p_j2k->m_cp.tw); if (! j2k_update_image_data(p_j2k->m_tcd,l_current_data)) { opj_free(l_current_data); return OPJ_FALSE; } opj_event_msg_v2(p_manager, EVT_INFO, "Image data has been updated with tile %d.\n\n", l_current_tile_no + 1); } opj_free(l_current_data); return OPJ_TRUE; } /** * Sets up the procedures to do on decoding data. Developpers wanting to extend the library can add their own reading procedures. */ void j2k_setup_decoding (opj_j2k_v2_t *p_j2k) { // preconditions assert(p_j2k != 00); opj_procedure_list_add_procedure(p_j2k->m_procedure_list,(void*)j2k_decode_tiles); /* DEVELOPER CORNER, add your custom procedures */ } /** * Decodes the tiles of the stream. */ opj_bool j2k_decode_v2( opj_j2k_v2_t * p_j2k, opj_stream_private_t * p_stream, opj_image_t * p_image, opj_event_mgr_t * p_manager) { OPJ_UINT32 compno; if (!p_image) return OPJ_FALSE; /* customization of the decoding */ j2k_setup_decoding(p_j2k); /* Decode the codestream */ if (! j2k_exec (p_j2k,p_j2k->m_procedure_list,p_stream,p_manager)) { opj_image_destroy(p_j2k->m_image); p_j2k->m_image = NULL; return OPJ_FALSE; } /* Copy data from codec to output image*/ for (compno = 0; compno < p_image->numcomps; compno++) { p_image->comps[compno].data = p_j2k->m_image->comps[compno].data; p_j2k->m_image->comps[compno].data = NULL; } return OPJ_TRUE; }