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86 lines
3.2 KiB
C
86 lines
3.2 KiB
C
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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_size_defs.h
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*
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* @brief
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* Contains declaration of global variables for H264 transform , quant and inverse quant
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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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*
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********************************************************************************/
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#ifndef IH264_SIZE_DEFS_H_
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#define IH264_SIZE_DEFS_H_
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/*****************************************************************************/
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/* Constant Macros */
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/*****************************************************************************/
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/*-----------------------Primary defs--------------------------*/
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/*Width of a 4x4 block*/
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#define SUB_BLK_WIDTH_4x4 4
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/*Width of an 8x8 block*/
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#define SUB_BLK_WIDTH_8x8 8
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/*Number of chroma blocks in a row of coffs*/
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#define SUB_BLK_COUNT_CHROMA_4x4_420 2
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/*Number of luma blocks in a row of coffs*/
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#define SUB_BLK_COUNT_LUMA_4x4 4
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/*Numbr of chroma planes*/
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#define NUM_CHROMA_PLANES 2
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/*Constant bit shifts*/
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#define QP_BITS_h264_4x4 15
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#define QP_BITS_h264_8x8 16
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/*---------------------------Derived defs------------------------*/
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/*Number of coefficients ina 4x4 block*/
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#define COFF_CNT_SUB_BLK_4x4 SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4;
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/*Number of luma blocks in a row of coffs*/
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#define SUB_BLK_LUMA_4X4_CNT_MB SUB_BLK_COUNT_LUMA_4x4 * SUB_BLK_COUNT_LUMA_4x4
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/*Number of chroma coffs in an MB*/
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#define SUB_BLK_CHROMA_4X4_CNT_MB SUB_BLK_COUNT_CHROMA_4x4_420 * SUB_BLK_COUNT_CHROMA_4x4_420
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#define SUB_BLK_CHROMA_4X4_CNT_MB_BIPLANE SUB_BLK_CHROMA_4X4_CNT_MB*NUM_CHROMA_PLANES
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/*Size of trans buff = 4x4 for DC block + 4x4 * coffs for 4x4 ac blocks*/
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#define SIZE_TRANS_BUFF (SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4*+ \
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SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4* \
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SUB_BLK_COUNT_LUMA_4x4*SUB_BLK_COUNT_LUMA_4x4)
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/*memory size = memory size of 4x4 block of resi coff + 4x4 for DC coff block */
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#define SIZE_TMP_BUFF_ITRANS ((SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4) +\
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(SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4))
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#endif /* IH264_DEFS_H_ */
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