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85 lines
3.2 KiB
85 lines
3.2 KiB
/****************************************************************************** |
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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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