00001 /* 00002 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder 00003 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00027 #ifndef AVCODEC_CABAC_H 00028 #define AVCODEC_CABAC_H 00029 00030 #include <stdint.h> 00031 00032 #include "put_bits.h" 00033 00034 #define CABAC_BITS 16 00035 #define CABAC_MASK ((1<<CABAC_BITS)-1) 00036 00037 typedef struct CABACContext{ 00038 int low; 00039 int range; 00040 int outstanding_count; 00041 const uint8_t *bytestream_start; 00042 const uint8_t *bytestream; 00043 const uint8_t *bytestream_end; 00044 PutBitContext pb; 00045 }CABACContext; 00046 00047 void ff_init_cabac_encoder(CABACContext *c, uint8_t *buf, int buf_size); 00048 void ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size); 00049 void ff_init_cabac_states(CABACContext *c); 00050 00051 #endif /* AVCODEC_CABAC_H */
1.5.8