89 lines
3.1 KiB
C
89 lines
3.1 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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/**
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*******************************************************************************
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* @file
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* isvce_cabac_utils.h
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*
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* @brief
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* Contains function declarations for function declared in
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* isvce_svc_cabac_utils.c
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*
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* @author
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* ittiam
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*
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* @remarks
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* None
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*
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*******************************************************************************
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*/
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#ifndef _ISVCE_CABAC_UTILS_H_
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#define _ISVCE_CABAC_UTILS_H_
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#include "ih264_typedefs.h"
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#include "isvc_macros.h"
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#include "isvc_defs.h"
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#include "isvc_cabac_tables.h"
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#include "isvce_cabac_structs.h"
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#include "isvce_cabac.h"
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static FORCEINLINE void isvce_cabac_enc_base_mode_flag(isvce_cabac_ctxt_t *ps_cabac_ctxt,
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UWORD8 u1_base_mode_flag)
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{
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UWORD8 u1_ctx_inc;
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UWORD8 u1_a, u1_b;
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const UWORD32 u4_ctxidx_offset = BASE_MODE_FLAG;
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u1_a = !ps_cabac_ctxt->ps_left_ctxt_mb_info->u1_base_mode_flag;
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u1_b = !ps_cabac_ctxt->ps_top_ctxt_mb_info->u1_base_mode_flag;
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u1_ctx_inc = u1_a + u1_b;
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isvce_cabac_encode_bin(ps_cabac_ctxt, u1_base_mode_flag,
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ps_cabac_ctxt->au1_cabac_ctxt_table + u4_ctxidx_offset + u1_ctx_inc);
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}
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static FORCEINLINE void isvce_cabac_enc_residual_prediction_flag(isvce_cabac_ctxt_t *ps_cabac_ctxt,
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UWORD8 u1_base_mode_flag,
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UWORD8 u1_residual_prediction_flag)
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{
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const UWORD32 u4_ctxidx_offset = RESIDUAL_PREDICTION_FLAG;
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UWORD8 u1_ctx_inc = !u1_base_mode_flag;
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isvce_cabac_encode_bin(ps_cabac_ctxt, u1_residual_prediction_flag,
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ps_cabac_ctxt->au1_cabac_ctxt_table + u4_ctxidx_offset + u1_ctx_inc);
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}
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static FORCEINLINE void isvce_cabac_enc_motion_prediction_flag(isvce_cabac_ctxt_t *ps_cabac_ctxt,
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UWORD8 u1_motion_prediction_flag,
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UWORD8 u1_is_l0_mvp)
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{
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const UWORD32 u4_ctxidx_offset =
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u1_is_l0_mvp ? MOTION_PREDICTION_FLAG_L0 : MOTION_PREDICTION_FLAG_L1;
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isvce_cabac_encode_bin(ps_cabac_ctxt, u1_motion_prediction_flag,
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ps_cabac_ctxt->au1_cabac_ctxt_table + u4_ctxidx_offset);
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}
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#endif
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