mirror of
https://github.com/ultravideo/uvg266.git
synced 2024-11-28 03:34:06 +00:00
cfb21c0e4c
transform skip vs. normal transform selection criteria might need more work, currently both are calculated for each 4x4 block and SAD+coeff_SSE is compared.
85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
#ifndef CONTEXT_H_
|
|
#define CONTEXT_H_
|
|
/*****************************************************************************
|
|
* This file is part of Kvazaar HEVC encoder.
|
|
*
|
|
* Copyright (C) 2013-2014 Tampere University of Technology and others (see
|
|
* COPYING file).
|
|
*
|
|
* Kvazaar is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as published
|
|
* by the Free Software Foundation.
|
|
*
|
|
* Kvazaar 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Kvazaar. If not, see <http://www.gnu.org/licenses/>.
|
|
****************************************************************************/
|
|
|
|
/*
|
|
* \file
|
|
* \brief Context derivation for CABAC.
|
|
*/
|
|
|
|
#include "global.h"
|
|
|
|
#include "encoder.h"
|
|
|
|
|
|
// Types
|
|
typedef struct
|
|
{
|
|
uint8_t uc_state;
|
|
uint32_t bins_coded;
|
|
} cabac_ctx;
|
|
|
|
|
|
// Functions
|
|
void ctx_init(cabac_ctx* ctx, uint32_t qp, uint32_t init_value);
|
|
void init_contexts(encoder_control *encoder, int8_t slice);
|
|
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);
|
|
|
|
uint32_t context_get_sig_coeff_group( uint32_t *sig_coeff_group_flag,uint32_t pos_x, uint32_t pos_y,int32_t width);
|
|
|
|
|
|
int32_t context_get_sig_ctx_inc(int32_t pattern_sig_ctx,uint32_t scan_idx,int32_t pos_x,
|
|
int32_t pos_y,int32_t block_type,int32_t width, int8_t texture_type);
|
|
|
|
// CONTEXTS
|
|
extern cabac_ctx g_sao_merge_flag_model;
|
|
extern cabac_ctx g_sao_type_idx_model;
|
|
extern cabac_ctx g_split_flag_model[3];
|
|
extern cabac_ctx g_intra_mode_model;
|
|
extern cabac_ctx g_chroma_pred_model[2];
|
|
extern cabac_ctx g_trans_subdiv_model[3];
|
|
extern cabac_ctx g_qt_cbf_model_luma[3];
|
|
extern cabac_ctx g_qt_cbf_model_chroma[3];
|
|
extern cabac_ctx g_part_size_model[4];
|
|
extern cabac_ctx g_cu_sig_coeff_group_model[4];
|
|
extern cabac_ctx g_cu_sig_model_luma[27];
|
|
extern cabac_ctx g_cu_sig_model_chroma[15];
|
|
extern cabac_ctx g_cu_ctx_last_y_luma[15];
|
|
extern cabac_ctx g_cu_ctx_last_y_chroma[15];
|
|
extern cabac_ctx g_cu_ctx_last_x_luma[15];
|
|
extern cabac_ctx g_cu_ctx_last_x_chroma[15];
|
|
extern cabac_ctx g_cu_one_model_luma[16];
|
|
extern cabac_ctx g_cu_one_model_chroma[8];
|
|
extern cabac_ctx g_cu_abs_model_luma[4];
|
|
extern cabac_ctx g_cu_abs_model_chroma[2];
|
|
extern cabac_ctx g_cu_pred_mode_model;
|
|
extern cabac_ctx g_cu_skip_flag_model[3];
|
|
extern cabac_ctx g_cu_merge_idx_ext_model;
|
|
extern cabac_ctx g_cu_merge_flag_ext_model;
|
|
extern cabac_ctx g_cu_mvd_model[2];
|
|
extern cabac_ctx g_cu_ref_pic_model[2];
|
|
extern cabac_ctx g_mvp_idx_model[2];
|
|
extern cabac_ctx g_cu_qt_root_cbf_model;
|
|
extern cabac_ctx g_transform_skip_model_luma;
|
|
extern cabac_ctx g_transform_skip_model_chroma;
|
|
#define CNU 154
|
|
|
|
#endif
|