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47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
#ifndef CONTEXT_H_
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#define CONTEXT_H_
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/*****************************************************************************
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* This file is part of Kvazaar HEVC encoder.
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*
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* Copyright (C) 2013-2014 Tampere University of Technology and others (see
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* COPYING file).
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*
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* Kvazaar is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* Kvazaar 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Kvazaar. If not, see <http://www.gnu.org/licenses/>.
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****************************************************************************/
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/*
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* \file
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* \brief Context derivation for CABAC.
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*/
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#include "global.h"
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#include "encoder.h"
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#include "cabac.h"
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// Functions
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void ctx_init(cabac_ctx* ctx, uint32_t qp, uint32_t init_value);
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void init_contexts(encoder_state *encoder_state, int8_t QP, int8_t slice);
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int32_t context_calc_pattern_sig_ctx( const uint32_t *sig_coeff_group_flag, uint32_t pos_x, uint32_t pos_y, int32_t width);
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uint32_t context_get_sig_coeff_group( uint32_t *sig_coeff_group_flag,uint32_t pos_x, uint32_t pos_y,int32_t width);
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int32_t context_get_sig_ctx_inc(int32_t pattern_sig_ctx,uint32_t scan_idx,int32_t pos_x,
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int32_t pos_y,int32_t block_type, int8_t texture_type);
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#define CNU 154
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#endif
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