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/******************************************************************************
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*
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* Copyright (C) 2015 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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* ih264_deblk_tables.h
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*
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* @brief
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* This file contains declarations of tables used for deblocking
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*
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* @author
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* Ittiam
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*
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* @par List of Functions:
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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 IH264_DEBLK_TABLES_H_
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#define IH264_DEBLK_TABLES_H_
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/*****************************************************************************/
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/* Extern global declarations */
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/*****************************************************************************/
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/**
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******************************************************************************
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* @brief alpha & beta tables for deblocking
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* input : indexA [0-51] & indexB [0-51]
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* output : alpha & beta
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*
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* @remarks Table 8-16 <EFBFBD> in H264 Specification,
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* Derivation of offset dependent threshold variables
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* alpha and beta from indexA and indexB
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******************************************************************************
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*/
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extern const UWORD8 gu1_ih264_alpha_table[52];
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extern const UWORD8 gu1_ih264_beta_table[52];
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/**
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******************************************************************************
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* @brief t'C0 table for deblocking
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* input : indexA [0-51] and bS [1,3]
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* output : t'C0
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*
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* @remarks Table 8-17 <EFBFBD> in H264 Specification,
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* Value of variable t'C0 as a function of indexA and bS
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******************************************************************************
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*/
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extern const UWORD8 gu1_ih264_clip_table[52][4];
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#endif /* IH264_DEBLK_TABLES_H_ */
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