10c1bc742181ded4930842b46e9507372f0b1b963James Dong/* 20c1bc742181ded4930842b46e9507372f0b1b963James Dong * Copyright (C) 2009 The Android Open Source Project 30c1bc742181ded4930842b46e9507372f0b1b963James Dong * 40c1bc742181ded4930842b46e9507372f0b1b963James Dong * Licensed under the Apache License, Version 2.0 (the "License"); 50c1bc742181ded4930842b46e9507372f0b1b963James Dong * you may not use this file except in compliance with the License. 60c1bc742181ded4930842b46e9507372f0b1b963James Dong * You may obtain a copy of the License at 70c1bc742181ded4930842b46e9507372f0b1b963James Dong * 80c1bc742181ded4930842b46e9507372f0b1b963James Dong * http://www.apache.org/licenses/LICENSE-2.0 90c1bc742181ded4930842b46e9507372f0b1b963James Dong * 100c1bc742181ded4930842b46e9507372f0b1b963James Dong * Unless required by applicable law or agreed to in writing, software 110c1bc742181ded4930842b46e9507372f0b1b963James Dong * distributed under the License is distributed on an "AS IS" BASIS, 120c1bc742181ded4930842b46e9507372f0b1b963James Dong * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 130c1bc742181ded4930842b46e9507372f0b1b963James Dong * See the License for the specific language governing permissions and 140c1bc742181ded4930842b46e9507372f0b1b963James Dong * limitations under the License. 150c1bc742181ded4930842b46e9507372f0b1b963James Dong */ 160c1bc742181ded4930842b46e9507372f0b1b963James Dong 170c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 180c1bc742181ded4930842b46e9507372f0b1b963James Dong 190c1bc742181ded4930842b46e9507372f0b1b963James Dong Table of contents 200c1bc742181ded4930842b46e9507372f0b1b963James Dong 210c1bc742181ded4930842b46e9507372f0b1b963James Dong 1. Include headers 220c1bc742181ded4930842b46e9507372f0b1b963James Dong 2. External compiler flags 230c1bc742181ded4930842b46e9507372f0b1b963James Dong 3. Module defines 240c1bc742181ded4930842b46e9507372f0b1b963James Dong 4. Local function prototypes 250c1bc742181ded4930842b46e9507372f0b1b963James Dong 5. Functions 260c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeInterleavedMap 270c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeDispersedMap 280c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeForegroundLeftOverMap 290c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeBoxOutMap 300c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeRasterScanMap 310c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeWipeMap 320c1bc742181ded4930842b46e9507372f0b1b963James Dong h264bsdDecodeSliceGroupMap 330c1bc742181ded4930842b46e9507372f0b1b963James Dong 340c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 350c1bc742181ded4930842b46e9507372f0b1b963James Dong 360c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 370c1bc742181ded4930842b46e9507372f0b1b963James Dong 1. Include headers 380c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 390c1bc742181ded4930842b46e9507372f0b1b963James Dong 400c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "basetype.h" 410c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_slice_group_map.h" 420c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_cfg.h" 430c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_pic_param_set.h" 440c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_util.h" 450c1bc742181ded4930842b46e9507372f0b1b963James Dong 460c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 470c1bc742181ded4930842b46e9507372f0b1b963James Dong 2. External compiler flags 480c1bc742181ded4930842b46e9507372f0b1b963James Dong-------------------------------------------------------------------------------- 490c1bc742181ded4930842b46e9507372f0b1b963James Dong 500c1bc742181ded4930842b46e9507372f0b1b963James Dong-------------------------------------------------------------------------------- 510c1bc742181ded4930842b46e9507372f0b1b963James Dong 3. Module defines 520c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 530c1bc742181ded4930842b46e9507372f0b1b963James Dong 540c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 550c1bc742181ded4930842b46e9507372f0b1b963James Dong 4. Local function prototypes 560c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 570c1bc742181ded4930842b46e9507372f0b1b963James Dong 580c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic void DecodeInterleavedMap( 590c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 600c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 numSliceGroups, 610c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *runLength, 620c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picSize); 630c1bc742181ded4930842b46e9507372f0b1b963James Dong 640c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic void DecodeDispersedMap( 650c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 660c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 numSliceGroups, 670c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 680c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight); 690c1bc742181ded4930842b46e9507372f0b1b963James Dong 700c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic void DecodeForegroundLeftOverMap( 710c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 720c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 numSliceGroups, 730c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *topLeft, 740c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *bottomRight, 750c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 760c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight); 770c1bc742181ded4930842b46e9507372f0b1b963James Dong 780c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic void DecodeBoxOutMap( 790c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 800c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sliceGroupChangeDirectionFlag, 810c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 unitsInSliceGroup0, 820c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 830c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight); 840c1bc742181ded4930842b46e9507372f0b1b963James Dong 850c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic void DecodeRasterScanMap( 860c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 870c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sliceGroupChangeDirectionFlag, 880c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sizeOfUpperLeftGroup, 890c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picSize); 900c1bc742181ded4930842b46e9507372f0b1b963James Dong 910c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic void DecodeWipeMap( 920c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 930c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sliceGroupChangeDirectionFlag, 940c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sizeOfUpperLeftGroup, 950c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 960c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight); 970c1bc742181ded4930842b46e9507372f0b1b963James Dong 980c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 990c1bc742181ded4930842b46e9507372f0b1b963James Dong 1000c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: DecodeInterleavedMap 1010c1bc742181ded4930842b46e9507372f0b1b963James Dong 1020c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 1030c1bc742181ded4930842b46e9507372f0b1b963James Dong Function to decode interleaved slice group map type, i.e. slice 1040c1bc742181ded4930842b46e9507372f0b1b963James Dong group map type 0. 1050c1bc742181ded4930842b46e9507372f0b1b963James Dong 1060c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 1070c1bc742181ded4930842b46e9507372f0b1b963James Dong map pointer to the map 1080c1bc742181ded4930842b46e9507372f0b1b963James Dong numSliceGroups number of slice groups 1090c1bc742181ded4930842b46e9507372f0b1b963James Dong runLength run_length[] values for each slice group 1100c1bc742181ded4930842b46e9507372f0b1b963James Dong picSize picture size in macroblocks 1110c1bc742181ded4930842b46e9507372f0b1b963James Dong 1120c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 1130c1bc742181ded4930842b46e9507372f0b1b963James Dong map slice group map is stored here 1140c1bc742181ded4930842b46e9507372f0b1b963James Dong 1150c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 1160c1bc742181ded4930842b46e9507372f0b1b963James Dong none 1170c1bc742181ded4930842b46e9507372f0b1b963James Dong 1180c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 1190c1bc742181ded4930842b46e9507372f0b1b963James Dong 1200c1bc742181ded4930842b46e9507372f0b1b963James Dongvoid DecodeInterleavedMap( 1210c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 1220c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 numSliceGroups, 1230c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *runLength, 1240c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picSize) 1250c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 1260c1bc742181ded4930842b46e9507372f0b1b963James Dong 1270c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 1280c1bc742181ded4930842b46e9507372f0b1b963James Dong 1290c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i,j, group; 1300c1bc742181ded4930842b46e9507372f0b1b963James Dong 1310c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 1320c1bc742181ded4930842b46e9507372f0b1b963James Dong 1330c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(map); 1340c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(numSliceGroups >= 1 && numSliceGroups <= MAX_NUM_SLICE_GROUPS); 1350c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(runLength); 1360c1bc742181ded4930842b46e9507372f0b1b963James Dong 1370c1bc742181ded4930842b46e9507372f0b1b963James Dong i = 0; 1380c1bc742181ded4930842b46e9507372f0b1b963James Dong 1390c1bc742181ded4930842b46e9507372f0b1b963James Dong do { 1400c1bc742181ded4930842b46e9507372f0b1b963James Dong for (group = 0; group < numSliceGroups && i < picSize; 1410c1bc742181ded4930842b46e9507372f0b1b963James Dong i += runLength[group++]) 1420c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1430c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(runLength[group] <= picSize); 1440c1bc742181ded4930842b46e9507372f0b1b963James Dong for (j = 0; j < runLength[group] && i + j < picSize; j++) 1450c1bc742181ded4930842b46e9507372f0b1b963James Dong map[i+j] = group; 1460c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1470c1bc742181ded4930842b46e9507372f0b1b963James Dong } while (i < picSize); 1480c1bc742181ded4930842b46e9507372f0b1b963James Dong 1490c1bc742181ded4930842b46e9507372f0b1b963James Dong 1500c1bc742181ded4930842b46e9507372f0b1b963James Dong} 1510c1bc742181ded4930842b46e9507372f0b1b963James Dong 1520c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 1530c1bc742181ded4930842b46e9507372f0b1b963James Dong 1540c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: DecodeDispersedMap 1550c1bc742181ded4930842b46e9507372f0b1b963James Dong 1560c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 1570c1bc742181ded4930842b46e9507372f0b1b963James Dong Function to decode dispersed slice group map type, i.e. slice 1580c1bc742181ded4930842b46e9507372f0b1b963James Dong group map type 1. 1590c1bc742181ded4930842b46e9507372f0b1b963James Dong 1600c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 1610c1bc742181ded4930842b46e9507372f0b1b963James Dong map pointer to the map 1620c1bc742181ded4930842b46e9507372f0b1b963James Dong numSliceGroups number of slice groups 1630c1bc742181ded4930842b46e9507372f0b1b963James Dong picWidth picture width in macroblocks 1640c1bc742181ded4930842b46e9507372f0b1b963James Dong picHeight picture height in macroblocks 1650c1bc742181ded4930842b46e9507372f0b1b963James Dong 1660c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 1670c1bc742181ded4930842b46e9507372f0b1b963James Dong map slice group map is stored here 1680c1bc742181ded4930842b46e9507372f0b1b963James Dong 1690c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 1700c1bc742181ded4930842b46e9507372f0b1b963James Dong none 1710c1bc742181ded4930842b46e9507372f0b1b963James Dong 1720c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 1730c1bc742181ded4930842b46e9507372f0b1b963James Dong 1740c1bc742181ded4930842b46e9507372f0b1b963James Dongvoid DecodeDispersedMap( 1750c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 1760c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 numSliceGroups, 1770c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 1780c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight) 1790c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 1800c1bc742181ded4930842b46e9507372f0b1b963James Dong 1810c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 1820c1bc742181ded4930842b46e9507372f0b1b963James Dong 1830c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i, picSize; 1840c1bc742181ded4930842b46e9507372f0b1b963James Dong 1850c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 1860c1bc742181ded4930842b46e9507372f0b1b963James Dong 1870c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(map); 1880c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(numSliceGroups >= 1 && numSliceGroups <= MAX_NUM_SLICE_GROUPS); 1890c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picWidth); 1900c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picHeight); 1910c1bc742181ded4930842b46e9507372f0b1b963James Dong 1920c1bc742181ded4930842b46e9507372f0b1b963James Dong picSize = picWidth * picHeight; 1930c1bc742181ded4930842b46e9507372f0b1b963James Dong 1940c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < picSize; i++) 1950c1bc742181ded4930842b46e9507372f0b1b963James Dong map[i] = ((i % picWidth) + (((i / picWidth) * numSliceGroups) >> 1)) % 1960c1bc742181ded4930842b46e9507372f0b1b963James Dong numSliceGroups; 1970c1bc742181ded4930842b46e9507372f0b1b963James Dong 1980c1bc742181ded4930842b46e9507372f0b1b963James Dong 1990c1bc742181ded4930842b46e9507372f0b1b963James Dong} 2000c1bc742181ded4930842b46e9507372f0b1b963James Dong 2010c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 2020c1bc742181ded4930842b46e9507372f0b1b963James Dong 2030c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: DecodeForegroundLeftOverMap 2040c1bc742181ded4930842b46e9507372f0b1b963James Dong 2050c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 2060c1bc742181ded4930842b46e9507372f0b1b963James Dong Function to decode foreground with left-over slice group map type, 2070c1bc742181ded4930842b46e9507372f0b1b963James Dong i.e. slice group map type 2. 2080c1bc742181ded4930842b46e9507372f0b1b963James Dong 2090c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 2100c1bc742181ded4930842b46e9507372f0b1b963James Dong map pointer to the map 2110c1bc742181ded4930842b46e9507372f0b1b963James Dong numSliceGroups number of slice groups 2120c1bc742181ded4930842b46e9507372f0b1b963James Dong topLeft top_left[] values 2130c1bc742181ded4930842b46e9507372f0b1b963James Dong bottomRight bottom_right[] values 2140c1bc742181ded4930842b46e9507372f0b1b963James Dong picWidth picture width in macroblocks 2150c1bc742181ded4930842b46e9507372f0b1b963James Dong picHeight picture height in macroblocks 2160c1bc742181ded4930842b46e9507372f0b1b963James Dong 2170c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 2180c1bc742181ded4930842b46e9507372f0b1b963James Dong map slice group map is stored here 2190c1bc742181ded4930842b46e9507372f0b1b963James Dong 2200c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 2210c1bc742181ded4930842b46e9507372f0b1b963James Dong none 2220c1bc742181ded4930842b46e9507372f0b1b963James Dong 2230c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 2240c1bc742181ded4930842b46e9507372f0b1b963James Dong 2250c1bc742181ded4930842b46e9507372f0b1b963James Dongvoid DecodeForegroundLeftOverMap( 2260c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 2270c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 numSliceGroups, 2280c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *topLeft, 2290c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *bottomRight, 2300c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 2310c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight) 2320c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 2330c1bc742181ded4930842b46e9507372f0b1b963James Dong 2340c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 2350c1bc742181ded4930842b46e9507372f0b1b963James Dong 2360c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i,y,x,yTopLeft,yBottomRight,xTopLeft,xBottomRight, picSize; 2370c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 group; 2380c1bc742181ded4930842b46e9507372f0b1b963James Dong 2390c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 2400c1bc742181ded4930842b46e9507372f0b1b963James Dong 2410c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(map); 2420c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(numSliceGroups >= 1 && numSliceGroups <= MAX_NUM_SLICE_GROUPS); 2430c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(topLeft); 2440c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(bottomRight); 2450c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picWidth); 2460c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picHeight); 2470c1bc742181ded4930842b46e9507372f0b1b963James Dong 2480c1bc742181ded4930842b46e9507372f0b1b963James Dong picSize = picWidth * picHeight; 2490c1bc742181ded4930842b46e9507372f0b1b963James Dong 2500c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < picSize; i++) 2510c1bc742181ded4930842b46e9507372f0b1b963James Dong map[i] = numSliceGroups - 1; 2520c1bc742181ded4930842b46e9507372f0b1b963James Dong 2530c1bc742181ded4930842b46e9507372f0b1b963James Dong for (group = numSliceGroups - 1; group--; ) 2540c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2550c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT( topLeft[group] <= bottomRight[group] && 2560c1bc742181ded4930842b46e9507372f0b1b963James Dong bottomRight[group] < picSize ); 2570c1bc742181ded4930842b46e9507372f0b1b963James Dong yTopLeft = topLeft[group] / picWidth; 2580c1bc742181ded4930842b46e9507372f0b1b963James Dong xTopLeft = topLeft[group] % picWidth; 2590c1bc742181ded4930842b46e9507372f0b1b963James Dong yBottomRight = bottomRight[group] / picWidth; 2600c1bc742181ded4930842b46e9507372f0b1b963James Dong xBottomRight = bottomRight[group] % picWidth; 2610c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(xTopLeft <= xBottomRight); 2620c1bc742181ded4930842b46e9507372f0b1b963James Dong 2630c1bc742181ded4930842b46e9507372f0b1b963James Dong for (y = yTopLeft; y <= yBottomRight; y++) 2640c1bc742181ded4930842b46e9507372f0b1b963James Dong for (x = xTopLeft; x <= xBottomRight; x++) 2650c1bc742181ded4930842b46e9507372f0b1b963James Dong map[ y * picWidth + x ] = group; 2660c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2670c1bc742181ded4930842b46e9507372f0b1b963James Dong 2680c1bc742181ded4930842b46e9507372f0b1b963James Dong 2690c1bc742181ded4930842b46e9507372f0b1b963James Dong} 2700c1bc742181ded4930842b46e9507372f0b1b963James Dong 2710c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 2720c1bc742181ded4930842b46e9507372f0b1b963James Dong 2730c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: DecodeBoxOutMap 2740c1bc742181ded4930842b46e9507372f0b1b963James Dong 2750c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 2760c1bc742181ded4930842b46e9507372f0b1b963James Dong Function to decode box-out slice group map type, i.e. slice group 2770c1bc742181ded4930842b46e9507372f0b1b963James Dong map type 3. 2780c1bc742181ded4930842b46e9507372f0b1b963James Dong 2790c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 2800c1bc742181ded4930842b46e9507372f0b1b963James Dong map pointer to the map 2810c1bc742181ded4930842b46e9507372f0b1b963James Dong sliceGroupChangeDirectionFlag slice_group_change_direction_flag 2820c1bc742181ded4930842b46e9507372f0b1b963James Dong unitsInSliceGroup0 mbs on slice group 0 2830c1bc742181ded4930842b46e9507372f0b1b963James Dong picWidth picture width in macroblocks 2840c1bc742181ded4930842b46e9507372f0b1b963James Dong picHeight picture height in macroblocks 2850c1bc742181ded4930842b46e9507372f0b1b963James Dong 2860c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 2870c1bc742181ded4930842b46e9507372f0b1b963James Dong map slice group map is stored here 2880c1bc742181ded4930842b46e9507372f0b1b963James Dong 2890c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 2900c1bc742181ded4930842b46e9507372f0b1b963James Dong none 2910c1bc742181ded4930842b46e9507372f0b1b963James Dong 2920c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 2930c1bc742181ded4930842b46e9507372f0b1b963James Dong 2940c1bc742181ded4930842b46e9507372f0b1b963James Dongvoid DecodeBoxOutMap( 2950c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 2960c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sliceGroupChangeDirectionFlag, 2970c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 unitsInSliceGroup0, 2980c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 2990c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight) 3000c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 3010c1bc742181ded4930842b46e9507372f0b1b963James Dong 3020c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 3030c1bc742181ded4930842b46e9507372f0b1b963James Dong 3040c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i, k, picSize; 3050c1bc742181ded4930842b46e9507372f0b1b963James Dong i32 x, y, xDir, yDir, leftBound, topBound, rightBound, bottomBound; 3060c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 mapUnitVacant; 3070c1bc742181ded4930842b46e9507372f0b1b963James Dong 3080c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 3090c1bc742181ded4930842b46e9507372f0b1b963James Dong 3100c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(map); 3110c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picWidth); 3120c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picHeight); 3130c1bc742181ded4930842b46e9507372f0b1b963James Dong 3140c1bc742181ded4930842b46e9507372f0b1b963James Dong picSize = picWidth * picHeight; 3150c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(unitsInSliceGroup0 <= picSize); 3160c1bc742181ded4930842b46e9507372f0b1b963James Dong 3170c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < picSize; i++) 3180c1bc742181ded4930842b46e9507372f0b1b963James Dong map[i] = 1; 3190c1bc742181ded4930842b46e9507372f0b1b963James Dong 3200c1bc742181ded4930842b46e9507372f0b1b963James Dong x = (picWidth - (u32)sliceGroupChangeDirectionFlag) >> 1; 3210c1bc742181ded4930842b46e9507372f0b1b963James Dong y = (picHeight - (u32)sliceGroupChangeDirectionFlag) >> 1; 3220c1bc742181ded4930842b46e9507372f0b1b963James Dong 3230c1bc742181ded4930842b46e9507372f0b1b963James Dong leftBound = x; 3240c1bc742181ded4930842b46e9507372f0b1b963James Dong topBound = y; 3250c1bc742181ded4930842b46e9507372f0b1b963James Dong 3260c1bc742181ded4930842b46e9507372f0b1b963James Dong rightBound = x; 3270c1bc742181ded4930842b46e9507372f0b1b963James Dong bottomBound = y; 3280c1bc742181ded4930842b46e9507372f0b1b963James Dong 3290c1bc742181ded4930842b46e9507372f0b1b963James Dong xDir = (i32)sliceGroupChangeDirectionFlag - 1; 3300c1bc742181ded4930842b46e9507372f0b1b963James Dong yDir = (i32)sliceGroupChangeDirectionFlag; 3310c1bc742181ded4930842b46e9507372f0b1b963James Dong 3320c1bc742181ded4930842b46e9507372f0b1b963James Dong for (k = 0; k < unitsInSliceGroup0; k += mapUnitVacant ? 1 : 0) 3330c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3340c1bc742181ded4930842b46e9507372f0b1b963James Dong mapUnitVacant = (map[ (u32)y * picWidth + (u32)x ] == 1) ? 3350c1bc742181ded4930842b46e9507372f0b1b963James Dong HANTRO_TRUE : HANTRO_FALSE; 3360c1bc742181ded4930842b46e9507372f0b1b963James Dong 3370c1bc742181ded4930842b46e9507372f0b1b963James Dong if (mapUnitVacant) 3380c1bc742181ded4930842b46e9507372f0b1b963James Dong map[ (u32)y * picWidth + (u32)x ] = 0; 3390c1bc742181ded4930842b46e9507372f0b1b963James Dong 3400c1bc742181ded4930842b46e9507372f0b1b963James Dong if (xDir == -1 && x == leftBound) 3410c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3420c1bc742181ded4930842b46e9507372f0b1b963James Dong leftBound = MAX(leftBound - 1, 0); 3430c1bc742181ded4930842b46e9507372f0b1b963James Dong x = leftBound; 3440c1bc742181ded4930842b46e9507372f0b1b963James Dong xDir = 0; 3450c1bc742181ded4930842b46e9507372f0b1b963James Dong yDir = 2 * (i32)sliceGroupChangeDirectionFlag - 1; 3460c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3470c1bc742181ded4930842b46e9507372f0b1b963James Dong else if (xDir == 1 && x == rightBound) 3480c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3490c1bc742181ded4930842b46e9507372f0b1b963James Dong rightBound = MIN(rightBound + 1, (i32)picWidth - 1); 3500c1bc742181ded4930842b46e9507372f0b1b963James Dong x = rightBound; 3510c1bc742181ded4930842b46e9507372f0b1b963James Dong xDir = 0; 3520c1bc742181ded4930842b46e9507372f0b1b963James Dong yDir = 1 - 2 * (i32)sliceGroupChangeDirectionFlag; 3530c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3540c1bc742181ded4930842b46e9507372f0b1b963James Dong else if (yDir == -1 && y == topBound) 3550c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3560c1bc742181ded4930842b46e9507372f0b1b963James Dong topBound = MAX(topBound - 1, 0); 3570c1bc742181ded4930842b46e9507372f0b1b963James Dong y = topBound; 3580c1bc742181ded4930842b46e9507372f0b1b963James Dong xDir = 1 - 2 * (i32)sliceGroupChangeDirectionFlag; 3590c1bc742181ded4930842b46e9507372f0b1b963James Dong yDir = 0; 3600c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3610c1bc742181ded4930842b46e9507372f0b1b963James Dong else if (yDir == 1 && y == bottomBound) 3620c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3630c1bc742181ded4930842b46e9507372f0b1b963James Dong bottomBound = MIN(bottomBound + 1, (i32)picHeight - 1); 3640c1bc742181ded4930842b46e9507372f0b1b963James Dong y = bottomBound; 3650c1bc742181ded4930842b46e9507372f0b1b963James Dong xDir = 2 * (i32)sliceGroupChangeDirectionFlag - 1; 3660c1bc742181ded4930842b46e9507372f0b1b963James Dong yDir = 0; 3670c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3680c1bc742181ded4930842b46e9507372f0b1b963James Dong else 3690c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3700c1bc742181ded4930842b46e9507372f0b1b963James Dong x += xDir; 3710c1bc742181ded4930842b46e9507372f0b1b963James Dong y += yDir; 3720c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3730c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3740c1bc742181ded4930842b46e9507372f0b1b963James Dong 3750c1bc742181ded4930842b46e9507372f0b1b963James Dong 3760c1bc742181ded4930842b46e9507372f0b1b963James Dong} 3770c1bc742181ded4930842b46e9507372f0b1b963James Dong 3780c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 3790c1bc742181ded4930842b46e9507372f0b1b963James Dong 3800c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: DecodeRasterScanMap 3810c1bc742181ded4930842b46e9507372f0b1b963James Dong 3820c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 3830c1bc742181ded4930842b46e9507372f0b1b963James Dong Function to decode raster scan slice group map type, i.e. slice 3840c1bc742181ded4930842b46e9507372f0b1b963James Dong group map type 4. 3850c1bc742181ded4930842b46e9507372f0b1b963James Dong 3860c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 3870c1bc742181ded4930842b46e9507372f0b1b963James Dong map pointer to the map 3880c1bc742181ded4930842b46e9507372f0b1b963James Dong sliceGroupChangeDirectionFlag slice_group_change_direction_flag 3890c1bc742181ded4930842b46e9507372f0b1b963James Dong sizeOfUpperLeftGroup mbs in upperLeftGroup 3900c1bc742181ded4930842b46e9507372f0b1b963James Dong picSize picture size in macroblocks 3910c1bc742181ded4930842b46e9507372f0b1b963James Dong 3920c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 3930c1bc742181ded4930842b46e9507372f0b1b963James Dong map slice group map is stored here 3940c1bc742181ded4930842b46e9507372f0b1b963James Dong 3950c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 3960c1bc742181ded4930842b46e9507372f0b1b963James Dong none 3970c1bc742181ded4930842b46e9507372f0b1b963James Dong 3980c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 3990c1bc742181ded4930842b46e9507372f0b1b963James Dong 4000c1bc742181ded4930842b46e9507372f0b1b963James Dongvoid DecodeRasterScanMap( 4010c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 4020c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sliceGroupChangeDirectionFlag, 4030c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sizeOfUpperLeftGroup, 4040c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picSize) 4050c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 4060c1bc742181ded4930842b46e9507372f0b1b963James Dong 4070c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 4080c1bc742181ded4930842b46e9507372f0b1b963James Dong 4090c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i; 4100c1bc742181ded4930842b46e9507372f0b1b963James Dong 4110c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 4120c1bc742181ded4930842b46e9507372f0b1b963James Dong 4130c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(map); 4140c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picSize); 4150c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(sizeOfUpperLeftGroup <= picSize); 4160c1bc742181ded4930842b46e9507372f0b1b963James Dong 4170c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < picSize; i++) 4180c1bc742181ded4930842b46e9507372f0b1b963James Dong if (i < sizeOfUpperLeftGroup) 4190c1bc742181ded4930842b46e9507372f0b1b963James Dong map[i] = (u32)sliceGroupChangeDirectionFlag; 4200c1bc742181ded4930842b46e9507372f0b1b963James Dong else 4210c1bc742181ded4930842b46e9507372f0b1b963James Dong map[i] = 1 - (u32)sliceGroupChangeDirectionFlag; 4220c1bc742181ded4930842b46e9507372f0b1b963James Dong 4230c1bc742181ded4930842b46e9507372f0b1b963James Dong 4240c1bc742181ded4930842b46e9507372f0b1b963James Dong} 4250c1bc742181ded4930842b46e9507372f0b1b963James Dong 4260c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 4270c1bc742181ded4930842b46e9507372f0b1b963James Dong 4280c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: DecodeWipeMap 4290c1bc742181ded4930842b46e9507372f0b1b963James Dong 4300c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 4310c1bc742181ded4930842b46e9507372f0b1b963James Dong Function to decode wipe slice group map type, i.e. slice group map 4320c1bc742181ded4930842b46e9507372f0b1b963James Dong type 5. 4330c1bc742181ded4930842b46e9507372f0b1b963James Dong 4340c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 4350c1bc742181ded4930842b46e9507372f0b1b963James Dong sliceGroupChangeDirectionFlag slice_group_change_direction_flag 4360c1bc742181ded4930842b46e9507372f0b1b963James Dong sizeOfUpperLeftGroup mbs in upperLeftGroup 4370c1bc742181ded4930842b46e9507372f0b1b963James Dong picWidth picture width in macroblocks 4380c1bc742181ded4930842b46e9507372f0b1b963James Dong picHeight picture height in macroblocks 4390c1bc742181ded4930842b46e9507372f0b1b963James Dong 4400c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 4410c1bc742181ded4930842b46e9507372f0b1b963James Dong map slice group map is stored here 4420c1bc742181ded4930842b46e9507372f0b1b963James Dong 4430c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 4440c1bc742181ded4930842b46e9507372f0b1b963James Dong none 4450c1bc742181ded4930842b46e9507372f0b1b963James Dong 4460c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 4470c1bc742181ded4930842b46e9507372f0b1b963James Dong 4480c1bc742181ded4930842b46e9507372f0b1b963James Dongvoid DecodeWipeMap( 4490c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 4500c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sliceGroupChangeDirectionFlag, 4510c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sizeOfUpperLeftGroup, 4520c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 4530c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight) 4540c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 4550c1bc742181ded4930842b46e9507372f0b1b963James Dong 4560c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 4570c1bc742181ded4930842b46e9507372f0b1b963James Dong 4580c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i,j,k; 4590c1bc742181ded4930842b46e9507372f0b1b963James Dong 4600c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 4610c1bc742181ded4930842b46e9507372f0b1b963James Dong 4620c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(map); 4630c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picWidth); 4640c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picHeight); 4650c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(sizeOfUpperLeftGroup <= picWidth * picHeight); 4660c1bc742181ded4930842b46e9507372f0b1b963James Dong 4670c1bc742181ded4930842b46e9507372f0b1b963James Dong k = 0; 4680c1bc742181ded4930842b46e9507372f0b1b963James Dong for (j = 0; j < picWidth; j++) 4690c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < picHeight; i++) 4700c1bc742181ded4930842b46e9507372f0b1b963James Dong if (k++ < sizeOfUpperLeftGroup) 4710c1bc742181ded4930842b46e9507372f0b1b963James Dong map[ i * picWidth + j ] = (u32)sliceGroupChangeDirectionFlag; 4720c1bc742181ded4930842b46e9507372f0b1b963James Dong else 4730c1bc742181ded4930842b46e9507372f0b1b963James Dong map[ i * picWidth + j ] = 1 - 4740c1bc742181ded4930842b46e9507372f0b1b963James Dong (u32)sliceGroupChangeDirectionFlag; 4750c1bc742181ded4930842b46e9507372f0b1b963James Dong 4760c1bc742181ded4930842b46e9507372f0b1b963James Dong 4770c1bc742181ded4930842b46e9507372f0b1b963James Dong} 4780c1bc742181ded4930842b46e9507372f0b1b963James Dong 4790c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 4800c1bc742181ded4930842b46e9507372f0b1b963James Dong 4810c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: h264bsdDecodeSliceGroupMap 4820c1bc742181ded4930842b46e9507372f0b1b963James Dong 4830c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 4840c1bc742181ded4930842b46e9507372f0b1b963James Dong Function to decode macroblock to slice group map. Construction 4850c1bc742181ded4930842b46e9507372f0b1b963James Dong of different slice group map types is handled by separate 4860c1bc742181ded4930842b46e9507372f0b1b963James Dong functions defined above. See standard for details how slice group 4870c1bc742181ded4930842b46e9507372f0b1b963James Dong maps are computed. 4880c1bc742181ded4930842b46e9507372f0b1b963James Dong 4890c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 4900c1bc742181ded4930842b46e9507372f0b1b963James Dong pps active picture parameter set 4910c1bc742181ded4930842b46e9507372f0b1b963James Dong sliceGroupChangeCycle slice_group_change_cycle 4920c1bc742181ded4930842b46e9507372f0b1b963James Dong picWidth picture width in macroblocks 4930c1bc742181ded4930842b46e9507372f0b1b963James Dong picHeight picture height in macroblocks 4940c1bc742181ded4930842b46e9507372f0b1b963James Dong 4950c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 4960c1bc742181ded4930842b46e9507372f0b1b963James Dong map slice group map is stored here 4970c1bc742181ded4930842b46e9507372f0b1b963James Dong 4980c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 4990c1bc742181ded4930842b46e9507372f0b1b963James Dong none 5000c1bc742181ded4930842b46e9507372f0b1b963James Dong 5010c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 5020c1bc742181ded4930842b46e9507372f0b1b963James Dong 5030c1bc742181ded4930842b46e9507372f0b1b963James Dongvoid h264bsdDecodeSliceGroupMap( 5040c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 *map, 5050c1bc742181ded4930842b46e9507372f0b1b963James Dong picParamSet_t *pps, 5060c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 sliceGroupChangeCycle, 5070c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picWidth, 5080c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 picHeight) 5090c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 5100c1bc742181ded4930842b46e9507372f0b1b963James Dong 5110c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 5120c1bc742181ded4930842b46e9507372f0b1b963James Dong 5130c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i, picSize, unitsInSliceGroup0 = 0, sizeOfUpperLeftGroup = 0; 5140c1bc742181ded4930842b46e9507372f0b1b963James Dong 5150c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 5160c1bc742181ded4930842b46e9507372f0b1b963James Dong 5170c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(map); 5180c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pps); 5190c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picWidth); 5200c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picHeight); 5210c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pps->sliceGroupMapType < 7); 5220c1bc742181ded4930842b46e9507372f0b1b963James Dong 5230c1bc742181ded4930842b46e9507372f0b1b963James Dong picSize = picWidth * picHeight; 5240c1bc742181ded4930842b46e9507372f0b1b963James Dong 5250c1bc742181ded4930842b46e9507372f0b1b963James Dong /* just one slice group -> all macroblocks belong to group 0 */ 5260c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pps->numSliceGroups == 1) 5270c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5280c1bc742181ded4930842b46e9507372f0b1b963James Dong H264SwDecMemset(map, 0, picSize * sizeof(u32)); 5290c1bc742181ded4930842b46e9507372f0b1b963James Dong return; 5300c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5310c1bc742181ded4930842b46e9507372f0b1b963James Dong 5320c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pps->sliceGroupMapType > 2 && pps->sliceGroupMapType < 6) 5330c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5340c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pps->sliceGroupChangeRate && 5350c1bc742181ded4930842b46e9507372f0b1b963James Dong pps->sliceGroupChangeRate <= picSize); 5360c1bc742181ded4930842b46e9507372f0b1b963James Dong 5370c1bc742181ded4930842b46e9507372f0b1b963James Dong unitsInSliceGroup0 = 5380c1bc742181ded4930842b46e9507372f0b1b963James Dong MIN(sliceGroupChangeCycle * pps->sliceGroupChangeRate, picSize); 5390c1bc742181ded4930842b46e9507372f0b1b963James Dong 5400c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pps->sliceGroupMapType == 4 || pps->sliceGroupMapType == 5) 5410c1bc742181ded4930842b46e9507372f0b1b963James Dong sizeOfUpperLeftGroup = pps->sliceGroupChangeDirectionFlag ? 5420c1bc742181ded4930842b46e9507372f0b1b963James Dong (picSize - unitsInSliceGroup0) : unitsInSliceGroup0; 5430c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5440c1bc742181ded4930842b46e9507372f0b1b963James Dong 5450c1bc742181ded4930842b46e9507372f0b1b963James Dong switch (pps->sliceGroupMapType) 5460c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5470c1bc742181ded4930842b46e9507372f0b1b963James Dong case 0: 5480c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeInterleavedMap(map, pps->numSliceGroups, 5490c1bc742181ded4930842b46e9507372f0b1b963James Dong pps->runLength, picSize); 5500c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 5510c1bc742181ded4930842b46e9507372f0b1b963James Dong 5520c1bc742181ded4930842b46e9507372f0b1b963James Dong case 1: 5530c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeDispersedMap(map, pps->numSliceGroups, picWidth, 5540c1bc742181ded4930842b46e9507372f0b1b963James Dong picHeight); 5550c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 5560c1bc742181ded4930842b46e9507372f0b1b963James Dong 5570c1bc742181ded4930842b46e9507372f0b1b963James Dong case 2: 5580c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeForegroundLeftOverMap(map, pps->numSliceGroups, 5590c1bc742181ded4930842b46e9507372f0b1b963James Dong pps->topLeft, pps->bottomRight, picWidth, picHeight); 5600c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 5610c1bc742181ded4930842b46e9507372f0b1b963James Dong 5620c1bc742181ded4930842b46e9507372f0b1b963James Dong case 3: 5630c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeBoxOutMap(map, pps->sliceGroupChangeDirectionFlag, 5640c1bc742181ded4930842b46e9507372f0b1b963James Dong unitsInSliceGroup0, picWidth, picHeight); 5650c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 5660c1bc742181ded4930842b46e9507372f0b1b963James Dong 5670c1bc742181ded4930842b46e9507372f0b1b963James Dong case 4: 5680c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeRasterScanMap(map, 5690c1bc742181ded4930842b46e9507372f0b1b963James Dong pps->sliceGroupChangeDirectionFlag, sizeOfUpperLeftGroup, 5700c1bc742181ded4930842b46e9507372f0b1b963James Dong picSize); 5710c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 5720c1bc742181ded4930842b46e9507372f0b1b963James Dong 5730c1bc742181ded4930842b46e9507372f0b1b963James Dong case 5: 5740c1bc742181ded4930842b46e9507372f0b1b963James Dong DecodeWipeMap(map, pps->sliceGroupChangeDirectionFlag, 5750c1bc742181ded4930842b46e9507372f0b1b963James Dong sizeOfUpperLeftGroup, picWidth, picHeight); 5760c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 5770c1bc742181ded4930842b46e9507372f0b1b963James Dong 5780c1bc742181ded4930842b46e9507372f0b1b963James Dong default: 5790c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pps->sliceGroupId); 5800c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < picSize; i++) 5810c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5820c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pps->sliceGroupId[i] < pps->numSliceGroups); 5830c1bc742181ded4930842b46e9507372f0b1b963James Dong map[i] = pps->sliceGroupId[i]; 5840c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5850c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 5860c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5870c1bc742181ded4930842b46e9507372f0b1b963James Dong 5880c1bc742181ded4930842b46e9507372f0b1b963James Dong} 5890c1bc742181ded4930842b46e9507372f0b1b963James Dong 590