/*
  * 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>

 #include "put_bits.h"

 #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;
     int outstanding_count;

     const uint8_t *bytestream_start;
     const uint8_t *bytestream;

     const uint8_t *bytestream_end;

     PutBitContext pb;
 }CABACContext;
 
 void ff_init_cabac_encoder(CABACContext *c, uint8_t *buf, int buf_size);

 void ff_init_cabac_decoder(CABACContext *c, const uint8_t *buf, int buf_size);

 void ff_init_cabac_states(void);

 #endif /* AVCODEC_CABAC_H */