121 lines
4.3 KiB
C
121 lines
4.3 KiB
C
/*
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* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
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* Copyright (c) 2002-2007, Professor Benoit Macq
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* Copyright (c) 2001-2003, David Janssens
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* Copyright (c) 2002-2003, Yannick Verschueren
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* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
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* Copyright (c) 2005, Herve Drolon, FreeImage Team
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* Copyright (c) 2008, Jerome Fimes, Communications & Systemes <jerome.fimes@c-s.fr>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __T2_H
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#define __T2_H
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/**
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@file t2.h
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@brief Implementation of a tier-2 coding (packetization of code-block data) (T2)
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*/
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#include "openjpeg.h"
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struct opj_common_struct;
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struct opj_image;
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struct opj_cp;
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struct opj_tcd_tile;
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struct opj_codestream_info;
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/** @defgroup T2 T2 - Implementation of a tier-2 coding */
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/*@{*/
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/**
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T2 encoding mode
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*/
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typedef enum T2_MODE
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{
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THRESH_CALC = 0, /** Function called in Rate allocation process*/
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FINAL_PASS = 1 /** Function called in Tier 2 process*/
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}
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J2K_T2_MODE;
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/**
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Tier-2 coding
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*/
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typedef struct opj_t2 {
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/** Encoding: pointer to the src image. Decoding: pointer to the dst image. */
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struct opj_image *image;
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/** pointer to the image coding parameters */
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struct opj_cp *cp;
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} opj_t2_t;
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/** @name Exported functions */
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/*@{*/
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/* ----------------------------------------------------------------------- */
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/**
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Encode the packets of a tile to a destination buffer
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@param t2 T2 handle
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@param tileno number of the tile encoded
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@param tile the tile for which to write the packets
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@param maxlayers maximum number of layers
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@param dest the destination buffer
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@param len the length of the destination buffer
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@param cstr_info Codestream information structure
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@param tpnum Tile part number of the current tile
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@param tppos The position of the tile part flag in the progression order
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@param t2_mode If == 0 In Threshold calculation ,If == 1 Final pass
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*/
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bool t2_encode_packets(opj_t2_t* t2,OPJ_UINT32 tileno, struct opj_tcd_tile *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);
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/**
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Decode the packets of a tile from a source buffer
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@param t2 T2 handle
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@param src the source buffer
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@param len length of the source buffer
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@param tileno number that identifies the tile for which to decode the packets
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@param tile tile for which to decode the packets
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*/
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bool t2_decode_packets(opj_t2_t *t2, OPJ_UINT32 tileno,struct opj_tcd_tile *tile, OPJ_BYTE *src, OPJ_UINT32 * p_data_read, OPJ_UINT32 len, struct opj_codestream_info *cstr_info);
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/**
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* Creates a Tier 2 handle
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*
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* @param p_image Source or destination image
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* @param p_cp Image coding parameters.
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* @return a new T2 handle if successful, NULL otherwise.
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*/
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opj_t2_t* t2_create(struct opj_image *p_image, struct opj_cp *p_cp);
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/**
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* Destroys a Tier 2 handle.
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*
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* @param p_t2 the Tier 2 handle to destroy
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*/
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void t2_destroy(opj_t2_t *t2);
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/* ----------------------------------------------------------------------- */
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/*@}*/
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/*@}*/
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#endif /* __T2_H */
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