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/*
* H.265 video codec.
* Copyright (c) 2013-2014 struktur AG, Dirk Farin <farin@struktur.de>
*
* This file is part of libde265.
*
* libde265 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 3 of
* the License, or (at your option) any later version.
*
* libde265 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 libde265. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DE265_CABAC_H
#define DE265_CABAC_H
#include <stdint.h>
typedef struct {
uint8_t* bitstream_start;
uint8_t* bitstream_curr;
uint8_t* bitstream_end;
uint32_t range;
uint32_t value;
int16_t bits_needed;
} CABAC_decoder;
typedef struct {
uint8_t MPSbit : 1;
uint8_t state : 7;
} context_model;
void init_CABAC_decoder(CABAC_decoder* decoder, uint8_t* bitstream, int length);
void init_CABAC_decoder_2(CABAC_decoder* decoder);
int decode_CABAC_bit(CABAC_decoder* decoder, context_model* model);
int decode_CABAC_TU(CABAC_decoder* decoder, int cMax, context_model* model);
int decode_CABAC_term_bit(CABAC_decoder* decoder);
int decode_CABAC_bypass(CABAC_decoder* decoder);
int decode_CABAC_TU_bypass(CABAC_decoder* decoder, int cMax);
int decode_CABAC_FL_bypass(CABAC_decoder* decoder, int nBits);
int decode_CABAC_TR_bypass(CABAC_decoder* decoder, int cRiceParam, int cTRMax);
int decode_CABAC_EGk_bypass(CABAC_decoder* decoder, int k);
#endif
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