100 lines
3.5 KiB
C
100 lines
3.5 KiB
C
/*
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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) 2003-2005, Francois Devaux and Antonin Descampe
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* Copyright (c) 2005, Hervé Drolon, FreeImage Team
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* Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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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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/** @defgroup T2 T2 - Implementation of a tier-2 coding */
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/*@{*/
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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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/** codec context */
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opj_common_ptr cinfo;
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/** Encoding: pointer to the src image. Decoding: pointer to the dst image. */
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opj_image_t *image;
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/** pointer to the image coding parameters */
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opj_cp_t *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 image_info structure to create an index file
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*/
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int t2_encode_packets(opj_t2_t* t2, int tileno, opj_tcd_tile_t *tile, int maxlayers, unsigned char *dest, int len, opj_image_info_t *image_info);
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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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int t2_decode_packets(opj_t2_t *t2, unsigned char *src, int len, int tileno, opj_tcd_tile_t *tile);
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/**
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Create a T2 handle
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@param cinfo Codec context info
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@param image Source or destination image
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@param cp Image coding parameters
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@return Returns a new T2 handle if successful, returns NULL otherwise
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*/
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opj_t2_t* t2_create(opj_common_ptr cinfo, opj_image_t *image, opj_cp_t *cp);
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/**
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Destroy a T2 handle
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@param t2 T2 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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