/* | |
* Copyright (c) 2001-2003, David Janssens | |
* Copyright (c) 2002-2003, Yannick Verschueren | |
* Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe | |
* Copyright (c) 2005, Herve Drolon, FreeImage Team | |
* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium | |
* Copyright (c) 2006, Mónica Díez García, Image Processing Laboratory, University of Valladolid, Spain | |
* 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 volume. Decoding: pointer to the dst volume. */ | |
opj_volume_t *volume; | |
/** Pointer to the volume coding parameters */ | |
opj_cp_t *cp; | |
} opj_t2_t; | |
/** @name Funciones generales */ | |
/*@{*/ | |
/* ----------------------------------------------------------------------- */ | |
/** | |
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 volume_info structure to create an index file | |
@return Number of bytes written from packets | |
*/ | |
int t2_encode_packets(opj_t2_t* t2, int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_volume_info_t *volume_info); | |
/** | |
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 | |
@return Number of bytes read from packets | |
*/ | |
int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile); | |
/** | |
Create a T2 handle | |
@param cinfo Codec context info | |
@param volume Source or destination volume | |
@param cp Volume coding parameters | |
@return Returns a new T2 handle if successful, returns NULL otherwise | |
*/ | |
opj_t2_t* t2_create(opj_common_ptr cinfo, opj_volume_t *volume, opj_cp_t *cp); | |
/** | |
Destroy a T2 handle | |
@param t2 T2 handle to destroy | |
*/ | |
void t2_destroy(opj_t2_t *t2); | |
/* ----------------------------------------------------------------------- */ | |
/*@}*/ | |
/*@}*/ | |
#endif /* __T2_H */ |