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/******************************************************************************
*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
/**
*******************************************************************************
* @file
* ih264_size_defs.h
*
* @brief
* Contains macro definitions used in h264 transform, quant and inverse quant
*
* @author
* ittiam
*
* @remarks
* none
*
*******************************************************************************
*/
#ifndef _IH264_SIZE_DEFS_H_
#define _IH264_SIZE_DEFS_H_
/*****************************************************************************/
/* Constant Macros */
/*****************************************************************************/
/*-----------------------Primary defs--------------------------*/
/*Width of a 4x4 block*/
#define SUB_BLK_WIDTH_4x4 4
#define SUB_BLK_HEIGHT_4x4 4
/*Width of an 8x8 block*/
#define SUB_BLK_WIDTH_8x8 8
/*Number of chroma blocks in a row of coffs*/
#define SUB_BLK_COUNT_CHROMA_4x4_420 2
/*Number of luma blocks in a row of coffs*/
#define SUB_BLK_COUNT_LUMA_4x4 4
/*Numbr of chroma planes*/
#define NUM_CHROMA_PLANES 2
/*Constant bit shifts*/
#define QP_BITS_h264_4x4 15
#define QP_BITS_h264_8x8 16
/*---------------------------Derived defs------------------------*/
/*Number of coefficients ina 4x4 block*/
#define COFF_CNT_SUB_BLK_4x4 SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4;
/*Number of luma blocks in a row of coffs*/
#define SUB_BLK_LUMA_4X4_CNT_MB SUB_BLK_COUNT_LUMA_4x4 * SUB_BLK_COUNT_LUMA_4x4
/*Number of chroma coffs in an MB*/
#define SUB_BLK_CHROMA_4X4_CNT_MB SUB_BLK_COUNT_CHROMA_4x4_420 * SUB_BLK_COUNT_CHROMA_4x4_420
#define SUB_BLK_CHROMA_4X4_CNT_MB_BIPLANE SUB_BLK_CHROMA_4X4_CNT_MB*NUM_CHROMA_PLANES
/*Size of trans buff = 4x4 for DC block + 4x4 * coffs for 4x4 ac blocks*/
#define SIZE_TRANS_BUFF (SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4*+ \
SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4* \
SUB_BLK_COUNT_LUMA_4x4*SUB_BLK_COUNT_LUMA_4x4)
/*memory size = memory size of 4x4 block of resi coff + 4x4 for DC coff block */
#define SIZE_TMP_BUFF_ITRANS ((SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4) +\
(SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4))
#endif /* _IH264_SIZE_DEFS_H_ */
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