/* * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * Context Adaptive Binary Arithmetic Coder. */ #ifndef AVCODEC_CABAC_H#define AVCODEC_CABAC_H #include <stdint.h> extern const uint8_t ff_h264_cabac_tables[512 + 4*2*64 + 4*64 + 63];#define H264_NORM_SHIFT_OFFSET 0#define H264_LPS_RANGE_OFFSET 512#define H264_MLPS_STATE_OFFSET 1024#define H264_LAST_COEFF_FLAG_OFFSET_8x8_OFFSET 1280 #define CABAC_BITS 16#define CABAC_MASK ((1<<CABAC_BITS)-1) typedef struct CABACContext{    int low;    int range;    const uint8_t *bytestream_start;    const uint8_t *bytestream;    const uint8_t *bytestream_end;}CABACContext; int ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size); #endif /* AVCODEC_CABAC_H */