/* * 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 * 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. */ #ifndef __T2_H #define __T2_H /** @file t2.h @brief Implementation of a tier-2 coding (packetization of code-block data) (T2) */ /** @defgroup T2 T2 - Implementation of a tier-2 coding */ /*@{*/ /** Tier-2 coding */ typedef struct opj_t2 { /** codec context */ opj_common_ptr cinfo; /** Encoding: pointer to the src image. Decoding: pointer to the dst image. */ opj_image_t *image; /** pointer to the image coding parameters */ opj_cp_t *cp; } opj_t2_t; /** Tier-2 coding */ typedef struct opj_t2_v2 { /** codec context */ opj_common_ptr cinfo; /** Encoding: pointer to the src image. Decoding: pointer to the dst image. */ opj_image_t *image; /** pointer to the image coding parameters */ opj_cp_v2_t *cp; } opj_t2_v2_t; /** @name Exported functions */ /*@{*/ /* ----------------------------------------------------------------------- */ /** Encode the packets of a tile to a destination buffer @param t2 T2 handle @param tileno number of the tile encoded @param tile the tile for which to write the packets @param maxlayers maximum number of layers @param dest the destination buffer @param len the length of the destination buffer @param cstr_info Codestream information structure @param tpnum Tile part number of the current tile @param tppos The position of the tile part flag in the progression order @param pino @param t2_mode If == 0 In Threshold calculation ,If == 1 Final pass @param cur_totnum_tp The total number of tile parts in the current tile */ int t2_encode_packets(opj_t2_t* t2,int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_codestream_info_t *cstr_info,int tpnum, int tppos,int pino,J2K_T2_MODE t2_mode,int cur_totnum_tp); /** Encode the packets of a tile to a destination buffer @param t2 T2 handle @param tileno number of the tile encoded @param tile the tile for which to write the packets @param maxlayers maximum number of layers @param dest the destination buffer @param p_data_written FIXME DOC @param len the length of the destination buffer @param cstr_info Codestream information structure @param tpnum Tile part number of the current tile @param tppos The position of the tile part flag in the progression order @param pino FIXME DOC @param t2_mode If == 0 In Threshold calculation ,If == 1 Final pass */ opj_bool t2_encode_packets_v2( opj_t2_v2_t* t2, OPJ_UINT32 tileno, struct opj_tcd_tile_v2 *tile, OPJ_UINT32 maxlayers, OPJ_BYTE *dest, OPJ_UINT32 * p_data_written, OPJ_UINT32 len, struct opj_codestream_info *cstr_info, OPJ_UINT32 tpnum, OPJ_INT32 tppos, OPJ_UINT32 pino, J2K_T2_MODE t2_mode); /** Decode the packets of a tile from a source buffer @param t2 T2 handle @param src the source buffer @param len length of the source buffer @param tileno number that identifies the tile for which to decode the packets @param tile tile for which to decode the packets @param cstr_info Codestream information structure */ int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile, opj_codestream_info_t *cstr_info); /** Decode the packets of a tile from a source buffer @param t2 T2 handle @param tileno number that identifies the tile for which to decode the packets @param tile tile for which to decode the packets @param src FIXME DOC @param p_data_read the source buffer @param len length of the source buffer @param cstr_info FIXME DOC @return FIXME DOC */ opj_bool t2_decode_packets_v2( opj_t2_v2_t *t2, OPJ_UINT32 tileno, struct opj_tcd_tile_v2 *tile, OPJ_BYTE *src, OPJ_UINT32 * p_data_read, OPJ_UINT32 len, opj_codestream_index_t *cstr_info); /** * Creates a Tier 2 handle * * @param p_image Source or destination image * @param p_cp Image coding parameters. * @return a new T2 handle if successful, NULL otherwise. */ opj_t2_v2_t* t2_create_v2(opj_image_t *p_image, opj_cp_v2_t *p_cp); /** Create a T2 handle @param cinfo Codec context info @param image Source or destination image @param cp Image coding parameters @return Returns a new T2 handle if successful, returns NULL otherwise */ opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp); /** Destroy a T2 handle @param t2 T2 handle to destroy */ void t2_destroy(opj_t2_t *t2); /** Destroy a T2 handle @param t2 T2 handle to destroy */ void t2_destroy_v2(opj_t2_v2_t *t2); /* ----------------------------------------------------------------------- */ /*@}*/ /*@}*/ #endif /* __T2_H */