1 /****************************************************************************** 2 * 3 * Copyright (C) 2015 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 21 /** 22 ******************************************************************************* 23 * @file 24 * ih264_size_defs.h 25 * 26 * @brief 27 * Contains macro definitions used in h264 transform, quant and inverse quant 28 * 29 * @author 30 * ittiam 31 * 32 * @remarks 33 * none 34 * 35 ******************************************************************************* 36 */ 37 38 #ifndef _IH264_SIZE_DEFS_H_ 39 #define _IH264_SIZE_DEFS_H_ 40 41 /*****************************************************************************/ 42 /* Constant Macros */ 43 /*****************************************************************************/ 44 45 /*-----------------------Primary defs--------------------------*/ 46 47 /*Width of a 4x4 block*/ 48 #define SUB_BLK_WIDTH_4x4 4 49 50 #define SUB_BLK_HEIGHT_4x4 4 51 52 /*Width of an 8x8 block*/ 53 #define SUB_BLK_WIDTH_8x8 8 54 55 /*Number of chroma blocks in a row of coffs*/ 56 #define SUB_BLK_COUNT_CHROMA_4x4_420 2 57 58 /*Number of luma blocks in a row of coffs*/ 59 #define SUB_BLK_COUNT_LUMA_4x4 4 60 61 /*Numbr of chroma planes*/ 62 #define NUM_CHROMA_PLANES 2 63 64 /*Constant bit shifts*/ 65 #define QP_BITS_h264_4x4 15 66 #define QP_BITS_h264_8x8 16 67 68 69 /*---------------------------Derived defs------------------------*/ 70 71 /*Number of coefficients ina 4x4 block*/ 72 #define COFF_CNT_SUB_BLK_4x4 SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4; 73 74 /*Number of luma blocks in a row of coffs*/ 75 #define SUB_BLK_LUMA_4X4_CNT_MB SUB_BLK_COUNT_LUMA_4x4 * SUB_BLK_COUNT_LUMA_4x4 76 77 /*Number of chroma coffs in an MB*/ 78 #define SUB_BLK_CHROMA_4X4_CNT_MB SUB_BLK_COUNT_CHROMA_4x4_420 * SUB_BLK_COUNT_CHROMA_4x4_420 79 #define SUB_BLK_CHROMA_4X4_CNT_MB_BIPLANE SUB_BLK_CHROMA_4X4_CNT_MB*NUM_CHROMA_PLANES 80 81 /*Size of trans buff = 4x4 for DC block + 4x4 * coffs for 4x4 ac blocks*/ 82 #define SIZE_TRANS_BUFF (SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4*+ \ 83 SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4* \ 84 SUB_BLK_COUNT_LUMA_4x4*SUB_BLK_COUNT_LUMA_4x4) 85 86 /*memory size = memory size of 4x4 block of resi coff + 4x4 for DC coff block */ 87 #define SIZE_TMP_BUFF_ITRANS ((SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4) +\ 88 (SUB_BLK_WIDTH_4x4*SUB_BLK_WIDTH_4x4)) 89 90 #endif /* _IH264_SIZE_DEFS_H_ */ 91