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51 lines
1.5 KiB
51 lines
1.5 KiB
/* |
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* H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder |
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* Context Adaptive Binary Arithmetic Coder. |
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*/ |
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#ifndef AVCODEC_CABAC_H |
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#define AVCODEC_CABAC_H |
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#include <stdint.h> |
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#include "put_bits.h" |
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#define CABAC_BITS 16 |
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#define CABAC_MASK ((1<<CABAC_BITS)-1) |
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typedef struct CABACContext{ |
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int low; |
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int range; |
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int outstanding_count; |
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const uint8_t *bytestream_start; |
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const uint8_t *bytestream; |
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const uint8_t *bytestream_end; |
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PutBitContext pb; |
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}CABACContext; |
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void ff_init_cabac_encoder(CABACContext *c, uint8_t *buf, int buf_size); |
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void ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size); |
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void ff_init_cabac_states(CABACContext *c); |
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#endif /* AVCODEC_CABAC_H */
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