h264bsd_seq_param_set.c revision 0c1bc742181ded4930842b46e9507372f0b1b963
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 h264bsdDecodeSeqParamSet 270c1bc742181ded4930842b46e9507372f0b1b963James Dong GetDpbSize 280c1bc742181ded4930842b46e9507372f0b1b963James Dong h264bsdCompareSeqParamSets 290c1bc742181ded4930842b46e9507372f0b1b963James Dong 300c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 310c1bc742181ded4930842b46e9507372f0b1b963James Dong 320c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 330c1bc742181ded4930842b46e9507372f0b1b963James Dong 1. Include headers 340c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 350c1bc742181ded4930842b46e9507372f0b1b963James Dong 360c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_seq_param_set.h" 370c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_util.h" 380c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_vlc.h" 390c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_vui.h" 400c1bc742181ded4930842b46e9507372f0b1b963James Dong#include "h264bsd_cfg.h" 410c1bc742181ded4930842b46e9507372f0b1b963James Dong 420c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 430c1bc742181ded4930842b46e9507372f0b1b963James Dong 2. External compiler flags 440c1bc742181ded4930842b46e9507372f0b1b963James Dong-------------------------------------------------------------------------------- 450c1bc742181ded4930842b46e9507372f0b1b963James Dong 460c1bc742181ded4930842b46e9507372f0b1b963James Dong-------------------------------------------------------------------------------- 470c1bc742181ded4930842b46e9507372f0b1b963James Dong 3. Module defines 480c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 490c1bc742181ded4930842b46e9507372f0b1b963James Dong 500c1bc742181ded4930842b46e9507372f0b1b963James Dong/* enumeration to indicate invalid return value from the GetDpbSize function */ 510c1bc742181ded4930842b46e9507372f0b1b963James Dongenum {INVALID_DPB_SIZE = 0x7FFFFFFF}; 520c1bc742181ded4930842b46e9507372f0b1b963James Dong 530c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 540c1bc742181ded4930842b46e9507372f0b1b963James Dong 4. Local function prototypes 550c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 560c1bc742181ded4930842b46e9507372f0b1b963James Dong 570c1bc742181ded4930842b46e9507372f0b1b963James Dongstatic u32 GetDpbSize(u32 picSizeInMbs, u32 levelIdc); 580c1bc742181ded4930842b46e9507372f0b1b963James Dong 590c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 600c1bc742181ded4930842b46e9507372f0b1b963James Dong 610c1bc742181ded4930842b46e9507372f0b1b963James Dong Function name: h264bsdDecodeSeqParamSet 620c1bc742181ded4930842b46e9507372f0b1b963James Dong 630c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 640c1bc742181ded4930842b46e9507372f0b1b963James Dong Decode sequence parameter set information from the stream. 650c1bc742181ded4930842b46e9507372f0b1b963James Dong 660c1bc742181ded4930842b46e9507372f0b1b963James Dong Function allocates memory for offsetForRefFrame array if 670c1bc742181ded4930842b46e9507372f0b1b963James Dong picture order count type is 1 and numRefFramesInPicOrderCntCycle 680c1bc742181ded4930842b46e9507372f0b1b963James Dong is greater than zero. 690c1bc742181ded4930842b46e9507372f0b1b963James Dong 700c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 710c1bc742181ded4930842b46e9507372f0b1b963James Dong pStrmData pointer to stream data structure 720c1bc742181ded4930842b46e9507372f0b1b963James Dong 730c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 740c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet decoded information is stored here 750c1bc742181ded4930842b46e9507372f0b1b963James Dong 760c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 770c1bc742181ded4930842b46e9507372f0b1b963James Dong HANTRO_OK success 780c1bc742181ded4930842b46e9507372f0b1b963James Dong HANTRO_NOK failure, invalid information or end of stream 790c1bc742181ded4930842b46e9507372f0b1b963James Dong MEMORY_ALLOCATION_ERROR for memory allocation failure 800c1bc742181ded4930842b46e9507372f0b1b963James Dong 810c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 820c1bc742181ded4930842b46e9507372f0b1b963James Dong 830c1bc742181ded4930842b46e9507372f0b1b963James Dongu32 h264bsdDecodeSeqParamSet(strmData_t *pStrmData, seqParamSet_t *pSeqParamSet) 840c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 850c1bc742181ded4930842b46e9507372f0b1b963James Dong 860c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 870c1bc742181ded4930842b46e9507372f0b1b963James Dong 880c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 tmp, i, value; 890c1bc742181ded4930842b46e9507372f0b1b963James Dong 900c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 910c1bc742181ded4930842b46e9507372f0b1b963James Dong 920c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pStrmData); 930c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pSeqParamSet); 940c1bc742181ded4930842b46e9507372f0b1b963James Dong 950c1bc742181ded4930842b46e9507372f0b1b963James Dong H264SwDecMemset(pSeqParamSet, 0, sizeof(seqParamSet_t)); 960c1bc742181ded4930842b46e9507372f0b1b963James Dong 970c1bc742181ded4930842b46e9507372f0b1b963James Dong /* profile_idc */ 980c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 8); 990c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 1000c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1010c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != 66) 1020c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1030c1bc742181ded4930842b46e9507372f0b1b963James Dong DEBUG(("NOT BASELINE PROFILE %d\n", tmp)); 1040c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1050c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->profileIdc = tmp; 1060c1bc742181ded4930842b46e9507372f0b1b963James Dong 1070c1bc742181ded4930842b46e9507372f0b1b963James Dong /* constrained_set0_flag */ 1080c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 1090c1bc742181ded4930842b46e9507372f0b1b963James Dong /* constrained_set1_flag */ 1100c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 1110c1bc742181ded4930842b46e9507372f0b1b963James Dong /* constrained_set2_flag */ 1120c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 1130c1bc742181ded4930842b46e9507372f0b1b963James Dong 1140c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 1150c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1160c1bc742181ded4930842b46e9507372f0b1b963James Dong 1170c1bc742181ded4930842b46e9507372f0b1b963James Dong /* reserved_zero_5bits, values of these bits shall be ignored */ 1180c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 5); 1190c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 1200c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1210c1bc742181ded4930842b46e9507372f0b1b963James Dong 1220c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 8); 1230c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 1240c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1250c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->levelIdc = tmp; 1260c1bc742181ded4930842b46e9507372f0b1b963James Dong 1270c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, 1280c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->seqParameterSetId); 1290c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 1300c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 1310c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->seqParameterSetId >= MAX_NUM_SEQ_PARAM_SETS) 1320c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1330c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("seq_param_set_id"); 1340c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1350c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1360c1bc742181ded4930842b46e9507372f0b1b963James Dong 1370c1bc742181ded4930842b46e9507372f0b1b963James Dong /* log2_max_frame_num_minus4 */ 1380c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value); 1390c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 1400c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 1410c1bc742181ded4930842b46e9507372f0b1b963James Dong if (value > 12) 1420c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1430c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("log2_max_frame_num_minus4"); 1440c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1450c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1460c1bc742181ded4930842b46e9507372f0b1b963James Dong /* maxFrameNum = 2^(log2_max_frame_num_minus4 + 4) */ 1470c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->maxFrameNum = 1 << (value+4); 1480c1bc742181ded4930842b46e9507372f0b1b963James Dong 1490c1bc742181ded4930842b46e9507372f0b1b963James Dong /* valid POC types are 0, 1 and 2 */ 1500c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value); 1510c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 1520c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 1530c1bc742181ded4930842b46e9507372f0b1b963James Dong if (value > 2) 1540c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1550c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("pic_order_cnt_type"); 1560c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1570c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1580c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->picOrderCntType = value; 1590c1bc742181ded4930842b46e9507372f0b1b963James Dong 1600c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->picOrderCntType == 0) 1610c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1620c1bc742181ded4930842b46e9507372f0b1b963James Dong /* log2_max_pic_order_cnt_lsb_minus4 */ 1630c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value); 1640c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 1650c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 1660c1bc742181ded4930842b46e9507372f0b1b963James Dong if (value > 12) 1670c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1680c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("log2_max_pic_order_cnt_lsb_minus4"); 1690c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1700c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1710c1bc742181ded4930842b46e9507372f0b1b963James Dong /* maxPicOrderCntLsb = 2^(log2_max_pic_order_cnt_lsb_minus4 + 4) */ 1720c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->maxPicOrderCntLsb = 1 << (value+4); 1730c1bc742181ded4930842b46e9507372f0b1b963James Dong } 1740c1bc742181ded4930842b46e9507372f0b1b963James Dong else if (pSeqParamSet->picOrderCntType == 1) 1750c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1760c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 1770c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 1780c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 1790c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->deltaPicOrderAlwaysZeroFlag = (tmp == 1) ? 1800c1bc742181ded4930842b46e9507372f0b1b963James Dong HANTRO_TRUE : HANTRO_FALSE; 1810c1bc742181ded4930842b46e9507372f0b1b963James Dong 1820c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombSigned(pStrmData, 1830c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->offsetForNonRefPic); 1840c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 1850c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 1860c1bc742181ded4930842b46e9507372f0b1b963James Dong 1870c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombSigned(pStrmData, 1880c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->offsetForTopToBottomField); 1890c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 1900c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 1910c1bc742181ded4930842b46e9507372f0b1b963James Dong 1920c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, 1930c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->numRefFramesInPicOrderCntCycle); 1940c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 1950c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 1960c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->numRefFramesInPicOrderCntCycle > 255) 1970c1bc742181ded4930842b46e9507372f0b1b963James Dong { 1980c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("num_ref_frames_in_pic_order_cnt_cycle"); 1990c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 2000c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2010c1bc742181ded4930842b46e9507372f0b1b963James Dong 2020c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->numRefFramesInPicOrderCntCycle) 2030c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2040c1bc742181ded4930842b46e9507372f0b1b963James Dong /* NOTE: This has to be freed somewhere! */ 2050c1bc742181ded4930842b46e9507372f0b1b963James Dong ALLOCATE(pSeqParamSet->offsetForRefFrame, 2060c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->numRefFramesInPicOrderCntCycle, i32); 2070c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->offsetForRefFrame == NULL) 2080c1bc742181ded4930842b46e9507372f0b1b963James Dong return(MEMORY_ALLOCATION_ERROR); 2090c1bc742181ded4930842b46e9507372f0b1b963James Dong 2100c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < pSeqParamSet->numRefFramesInPicOrderCntCycle; i++) 2110c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2120c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombSigned(pStrmData, 2130c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->offsetForRefFrame + i); 2140c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2150c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2160c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2170c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2180c1bc742181ded4930842b46e9507372f0b1b963James Dong else 2190c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2200c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->offsetForRefFrame = NULL; 2210c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2220c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2230c1bc742181ded4930842b46e9507372f0b1b963James Dong 2240c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, 2250c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->numRefFrames); 2260c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2270c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2280c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->numRefFrames > MAX_NUM_REF_PICS) 2290c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2300c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("num_ref_frames"); 2310c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 2320c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2330c1bc742181ded4930842b46e9507372f0b1b963James Dong 2340c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 2350c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 2360c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 2370c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->gapsInFrameNumValueAllowedFlag = (tmp == 1) ? 2380c1bc742181ded4930842b46e9507372f0b1b963James Dong HANTRO_TRUE : HANTRO_FALSE; 2390c1bc742181ded4930842b46e9507372f0b1b963James Dong 2400c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value); 2410c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2420c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2430c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->picWidthInMbs = value + 1; 2440c1bc742181ded4930842b46e9507372f0b1b963James Dong 2450c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, &value); 2460c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2470c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2480c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->picHeightInMbs = value + 1; 2490c1bc742181ded4930842b46e9507372f0b1b963James Dong 2500c1bc742181ded4930842b46e9507372f0b1b963James Dong /* frame_mbs_only_flag, shall be 1 for baseline profile */ 2510c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 2520c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 2530c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 2540c1bc742181ded4930842b46e9507372f0b1b963James Dong if (!tmp) 2550c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2560c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("frame_mbs_only_flag"); 2570c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 2580c1bc742181ded4930842b46e9507372f0b1b963James Dong } 2590c1bc742181ded4930842b46e9507372f0b1b963James Dong 2600c1bc742181ded4930842b46e9507372f0b1b963James Dong /* direct_8x8_inference_flag */ 2610c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 2620c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 2630c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 2640c1bc742181ded4930842b46e9507372f0b1b963James Dong 2650c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 2660c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 2670c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 2680c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->frameCroppingFlag = (tmp == 1) ? HANTRO_TRUE : HANTRO_FALSE; 2690c1bc742181ded4930842b46e9507372f0b1b963James Dong 2700c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->frameCroppingFlag) 2710c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2720c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, 2730c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->frameCropLeftOffset); 2740c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2750c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2760c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, 2770c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->frameCropRightOffset); 2780c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2790c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2800c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, 2810c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->frameCropTopOffset); 2820c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2830c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2840c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeExpGolombUnsigned(pStrmData, 2850c1bc742181ded4930842b46e9507372f0b1b963James Dong &pSeqParamSet->frameCropBottomOffset); 2860c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 2870c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 2880c1bc742181ded4930842b46e9507372f0b1b963James Dong 2890c1bc742181ded4930842b46e9507372f0b1b963James Dong /* check that frame cropping params are valid, parameters shall 2900c1bc742181ded4930842b46e9507372f0b1b963James Dong * specify non-negative area within the original picture */ 2910c1bc742181ded4930842b46e9507372f0b1b963James Dong if ( ( (i32)pSeqParamSet->frameCropLeftOffset > 2920c1bc742181ded4930842b46e9507372f0b1b963James Dong ( 8 * (i32)pSeqParamSet->picWidthInMbs - 2930c1bc742181ded4930842b46e9507372f0b1b963James Dong ((i32)pSeqParamSet->frameCropRightOffset + 1) ) ) || 2940c1bc742181ded4930842b46e9507372f0b1b963James Dong ( (i32)pSeqParamSet->frameCropTopOffset > 2950c1bc742181ded4930842b46e9507372f0b1b963James Dong ( 8 * (i32)pSeqParamSet->picHeightInMbs - 2960c1bc742181ded4930842b46e9507372f0b1b963James Dong ((i32)pSeqParamSet->frameCropBottomOffset + 1) ) ) ) 2970c1bc742181ded4930842b46e9507372f0b1b963James Dong { 2980c1bc742181ded4930842b46e9507372f0b1b963James Dong EPRINT("frame_cropping"); 2990c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 3000c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3010c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3020c1bc742181ded4930842b46e9507372f0b1b963James Dong 3030c1bc742181ded4930842b46e9507372f0b1b963James Dong /* check that image dimensions and levelIdc match */ 3040c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = pSeqParamSet->picWidthInMbs * pSeqParamSet->picHeightInMbs; 3050c1bc742181ded4930842b46e9507372f0b1b963James Dong value = GetDpbSize(tmp, pSeqParamSet->levelIdc); 3060c1bc742181ded4930842b46e9507372f0b1b963James Dong if (value == INVALID_DPB_SIZE || pSeqParamSet->numRefFrames > value) 3070c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3080c1bc742181ded4930842b46e9507372f0b1b963James Dong DEBUG(("WARNING! Invalid DPB size based on SPS Level!\n")); 3090c1bc742181ded4930842b46e9507372f0b1b963James Dong DEBUG(("WARNING! Using num_ref_frames =%d for DPB size!\n", 3100c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->numRefFrames)); 3110c1bc742181ded4930842b46e9507372f0b1b963James Dong value = pSeqParamSet->numRefFrames; 3120c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3130c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->maxDpbSize = value; 3140c1bc742181ded4930842b46e9507372f0b1b963James Dong 3150c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdGetBits(pStrmData, 1); 3160c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp == END_OF_STREAM) 3170c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 3180c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->vuiParametersPresentFlag = (tmp == 1) ? 3190c1bc742181ded4930842b46e9507372f0b1b963James Dong HANTRO_TRUE : HANTRO_FALSE; 3200c1bc742181ded4930842b46e9507372f0b1b963James Dong 3210c1bc742181ded4930842b46e9507372f0b1b963James Dong /* VUI */ 3220c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->vuiParametersPresentFlag) 3230c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3240c1bc742181ded4930842b46e9507372f0b1b963James Dong ALLOCATE(pSeqParamSet->vuiParameters, 1, vuiParameters_t); 3250c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->vuiParameters == NULL) 3260c1bc742181ded4930842b46e9507372f0b1b963James Dong return(MEMORY_ALLOCATION_ERROR); 3270c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdDecodeVuiParameters(pStrmData, 3280c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->vuiParameters); 3290c1bc742181ded4930842b46e9507372f0b1b963James Dong if (tmp != HANTRO_OK) 3300c1bc742181ded4930842b46e9507372f0b1b963James Dong return(tmp); 3310c1bc742181ded4930842b46e9507372f0b1b963James Dong /* check numReorderFrames and maxDecFrameBuffering */ 3320c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->vuiParameters->bitstreamRestrictionFlag) 3330c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3340c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSeqParamSet->vuiParameters->numReorderFrames > 3350c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->vuiParameters->maxDecFrameBuffering || 3360c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->vuiParameters->maxDecFrameBuffering < 3370c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->numRefFrames || 3380c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->vuiParameters->maxDecFrameBuffering > 3390c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->maxDpbSize) 3400c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3410c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_NOK); 3420c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3430c1bc742181ded4930842b46e9507372f0b1b963James Dong 3440c1bc742181ded4930842b46e9507372f0b1b963James Dong /* standard says that "the sequence shall not require a DPB with 3450c1bc742181ded4930842b46e9507372f0b1b963James Dong * size of more than max(1, maxDecFrameBuffering) */ 3460c1bc742181ded4930842b46e9507372f0b1b963James Dong pSeqParamSet->maxDpbSize = 3470c1bc742181ded4930842b46e9507372f0b1b963James Dong MAX(1, pSeqParamSet->vuiParameters->maxDecFrameBuffering); 3480c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3490c1bc742181ded4930842b46e9507372f0b1b963James Dong } 3500c1bc742181ded4930842b46e9507372f0b1b963James Dong 3510c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = h264bsdRbspTrailingBits(pStrmData); 3520c1bc742181ded4930842b46e9507372f0b1b963James Dong 3530c1bc742181ded4930842b46e9507372f0b1b963James Dong /* ignore possible errors in trailing bits of parameters sets */ 3540c1bc742181ded4930842b46e9507372f0b1b963James Dong return(HANTRO_OK); 3550c1bc742181ded4930842b46e9507372f0b1b963James Dong 3560c1bc742181ded4930842b46e9507372f0b1b963James Dong} 3570c1bc742181ded4930842b46e9507372f0b1b963James Dong 3580c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 3590c1bc742181ded4930842b46e9507372f0b1b963James Dong 3600c1bc742181ded4930842b46e9507372f0b1b963James Dong Function: GetDpbSize 3610c1bc742181ded4930842b46e9507372f0b1b963James Dong 3620c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 3630c1bc742181ded4930842b46e9507372f0b1b963James Dong Get size of the DPB in frames. Size is determined based on the 3640c1bc742181ded4930842b46e9507372f0b1b963James Dong picture size and MaxDPB for the specified level. These determine 3650c1bc742181ded4930842b46e9507372f0b1b963James Dong how many pictures may fit into to the buffer. However, the size 3660c1bc742181ded4930842b46e9507372f0b1b963James Dong is also limited to a maximum of 16 frames and therefore function 3670c1bc742181ded4930842b46e9507372f0b1b963James Dong returns the minimum of the determined size and 16. 3680c1bc742181ded4930842b46e9507372f0b1b963James Dong 3690c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 3700c1bc742181ded4930842b46e9507372f0b1b963James Dong picSizeInMbs number of macroblocks in the picture 3710c1bc742181ded4930842b46e9507372f0b1b963James Dong levelIdc indicates the level 3720c1bc742181ded4930842b46e9507372f0b1b963James Dong 3730c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 3740c1bc742181ded4930842b46e9507372f0b1b963James Dong none 3750c1bc742181ded4930842b46e9507372f0b1b963James Dong 3760c1bc742181ded4930842b46e9507372f0b1b963James Dong Returns: 3770c1bc742181ded4930842b46e9507372f0b1b963James Dong size of the DPB in frames 3780c1bc742181ded4930842b46e9507372f0b1b963James Dong INVALID_DPB_SIZE when invalid levelIdc specified or picSizeInMbs 3790c1bc742181ded4930842b46e9507372f0b1b963James Dong is higher than supported by the level in question 3800c1bc742181ded4930842b46e9507372f0b1b963James Dong 3810c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 3820c1bc742181ded4930842b46e9507372f0b1b963James Dong 3830c1bc742181ded4930842b46e9507372f0b1b963James Dongu32 GetDpbSize(u32 picSizeInMbs, u32 levelIdc) 3840c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 3850c1bc742181ded4930842b46e9507372f0b1b963James Dong 3860c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 3870c1bc742181ded4930842b46e9507372f0b1b963James Dong 3880c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 tmp; 3890c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 maxPicSizeInMbs; 3900c1bc742181ded4930842b46e9507372f0b1b963James Dong 3910c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 3920c1bc742181ded4930842b46e9507372f0b1b963James Dong 3930c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(picSizeInMbs); 3940c1bc742181ded4930842b46e9507372f0b1b963James Dong 3950c1bc742181ded4930842b46e9507372f0b1b963James Dong /* use tmp as the size of the DPB in bytes, computes as 1024 * MaxDPB 3960c1bc742181ded4930842b46e9507372f0b1b963James Dong * (from table A-1 in Annex A) */ 3970c1bc742181ded4930842b46e9507372f0b1b963James Dong switch (levelIdc) 3980c1bc742181ded4930842b46e9507372f0b1b963James Dong { 3990c1bc742181ded4930842b46e9507372f0b1b963James Dong case 10: 4000c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 152064; 4010c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 99; 4020c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4030c1bc742181ded4930842b46e9507372f0b1b963James Dong 4040c1bc742181ded4930842b46e9507372f0b1b963James Dong case 11: 4050c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 345600; 4060c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 396; 4070c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4080c1bc742181ded4930842b46e9507372f0b1b963James Dong 4090c1bc742181ded4930842b46e9507372f0b1b963James Dong case 12: 4100c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 912384; 4110c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 396; 4120c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4130c1bc742181ded4930842b46e9507372f0b1b963James Dong 4140c1bc742181ded4930842b46e9507372f0b1b963James Dong case 13: 4150c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 912384; 4160c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 396; 4170c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4180c1bc742181ded4930842b46e9507372f0b1b963James Dong 4190c1bc742181ded4930842b46e9507372f0b1b963James Dong case 20: 4200c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 912384; 4210c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 396; 4220c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4230c1bc742181ded4930842b46e9507372f0b1b963James Dong 4240c1bc742181ded4930842b46e9507372f0b1b963James Dong case 21: 4250c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 1824768; 4260c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 792; 4270c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4280c1bc742181ded4930842b46e9507372f0b1b963James Dong 4290c1bc742181ded4930842b46e9507372f0b1b963James Dong case 22: 4300c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 3110400; 4310c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 1620; 4320c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4330c1bc742181ded4930842b46e9507372f0b1b963James Dong 4340c1bc742181ded4930842b46e9507372f0b1b963James Dong case 30: 4350c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 3110400; 4360c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 1620; 4370c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4380c1bc742181ded4930842b46e9507372f0b1b963James Dong 4390c1bc742181ded4930842b46e9507372f0b1b963James Dong case 31: 4400c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 6912000; 4410c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 3600; 4420c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4430c1bc742181ded4930842b46e9507372f0b1b963James Dong 4440c1bc742181ded4930842b46e9507372f0b1b963James Dong case 32: 4450c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 7864320; 4460c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 5120; 4470c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4480c1bc742181ded4930842b46e9507372f0b1b963James Dong 4490c1bc742181ded4930842b46e9507372f0b1b963James Dong case 40: 4500c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 12582912; 4510c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 8192; 4520c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4530c1bc742181ded4930842b46e9507372f0b1b963James Dong 4540c1bc742181ded4930842b46e9507372f0b1b963James Dong case 41: 4550c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 12582912; 4560c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 8192; 4570c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4580c1bc742181ded4930842b46e9507372f0b1b963James Dong 4590c1bc742181ded4930842b46e9507372f0b1b963James Dong case 42: 4600c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 34816*384; 4610c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 8704; 4620c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4630c1bc742181ded4930842b46e9507372f0b1b963James Dong 4640c1bc742181ded4930842b46e9507372f0b1b963James Dong case 50: 4650c1bc742181ded4930842b46e9507372f0b1b963James Dong /* standard says 42301440 here, but corrigendum "corrects" this to 4660c1bc742181ded4930842b46e9507372f0b1b963James Dong * 42393600 */ 4670c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 42393600; 4680c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 22080; 4690c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4700c1bc742181ded4930842b46e9507372f0b1b963James Dong 4710c1bc742181ded4930842b46e9507372f0b1b963James Dong case 51: 4720c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp = 70778880; 4730c1bc742181ded4930842b46e9507372f0b1b963James Dong maxPicSizeInMbs = 36864; 4740c1bc742181ded4930842b46e9507372f0b1b963James Dong break; 4750c1bc742181ded4930842b46e9507372f0b1b963James Dong 4760c1bc742181ded4930842b46e9507372f0b1b963James Dong default: 4770c1bc742181ded4930842b46e9507372f0b1b963James Dong return(INVALID_DPB_SIZE); 4780c1bc742181ded4930842b46e9507372f0b1b963James Dong } 4790c1bc742181ded4930842b46e9507372f0b1b963James Dong 4800c1bc742181ded4930842b46e9507372f0b1b963James Dong /* this is not "correct" return value! However, it results in error in 4810c1bc742181ded4930842b46e9507372f0b1b963James Dong * decoding and this was easiest place to check picture size */ 4820c1bc742181ded4930842b46e9507372f0b1b963James Dong if (picSizeInMbs > maxPicSizeInMbs) 4830c1bc742181ded4930842b46e9507372f0b1b963James Dong return(INVALID_DPB_SIZE); 4840c1bc742181ded4930842b46e9507372f0b1b963James Dong 4850c1bc742181ded4930842b46e9507372f0b1b963James Dong tmp /= (picSizeInMbs*384); 4860c1bc742181ded4930842b46e9507372f0b1b963James Dong 4870c1bc742181ded4930842b46e9507372f0b1b963James Dong return(MIN(tmp, 16)); 4880c1bc742181ded4930842b46e9507372f0b1b963James Dong 4890c1bc742181ded4930842b46e9507372f0b1b963James Dong} 4900c1bc742181ded4930842b46e9507372f0b1b963James Dong 4910c1bc742181ded4930842b46e9507372f0b1b963James Dong/*------------------------------------------------------------------------------ 4920c1bc742181ded4930842b46e9507372f0b1b963James Dong 4930c1bc742181ded4930842b46e9507372f0b1b963James Dong Function name: h264bsdCompareSeqParamSets 4940c1bc742181ded4930842b46e9507372f0b1b963James Dong 4950c1bc742181ded4930842b46e9507372f0b1b963James Dong Functional description: 4960c1bc742181ded4930842b46e9507372f0b1b963James Dong Compare two sequence parameter sets. 4970c1bc742181ded4930842b46e9507372f0b1b963James Dong 4980c1bc742181ded4930842b46e9507372f0b1b963James Dong Inputs: 4990c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1 pointer to a sequence parameter set 5000c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps2 pointer to another sequence parameter set 5010c1bc742181ded4930842b46e9507372f0b1b963James Dong 5020c1bc742181ded4930842b46e9507372f0b1b963James Dong Outputs: 5030c1bc742181ded4930842b46e9507372f0b1b963James Dong 0 sequence parameter sets are equal 5040c1bc742181ded4930842b46e9507372f0b1b963James Dong 1 otherwise 5050c1bc742181ded4930842b46e9507372f0b1b963James Dong 5060c1bc742181ded4930842b46e9507372f0b1b963James Dong------------------------------------------------------------------------------*/ 5070c1bc742181ded4930842b46e9507372f0b1b963James Dong 5080c1bc742181ded4930842b46e9507372f0b1b963James Dongu32 h264bsdCompareSeqParamSets(seqParamSet_t *pSps1, seqParamSet_t *pSps2) 5090c1bc742181ded4930842b46e9507372f0b1b963James Dong{ 5100c1bc742181ded4930842b46e9507372f0b1b963James Dong 5110c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Variables */ 5120c1bc742181ded4930842b46e9507372f0b1b963James Dong 5130c1bc742181ded4930842b46e9507372f0b1b963James Dong u32 i; 5140c1bc742181ded4930842b46e9507372f0b1b963James Dong 5150c1bc742181ded4930842b46e9507372f0b1b963James Dong/* Code */ 5160c1bc742181ded4930842b46e9507372f0b1b963James Dong 5170c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pSps1); 5180c1bc742181ded4930842b46e9507372f0b1b963James Dong ASSERT(pSps2); 5190c1bc742181ded4930842b46e9507372f0b1b963James Dong 5200c1bc742181ded4930842b46e9507372f0b1b963James Dong /* first compare parameters whose existence does not depend on other 5210c1bc742181ded4930842b46e9507372f0b1b963James Dong * parameters and only compare the rest of the params if these are equal */ 5220c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSps1->profileIdc == pSps2->profileIdc && 5230c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->levelIdc == pSps2->levelIdc && 5240c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->maxFrameNum == pSps2->maxFrameNum && 5250c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->picOrderCntType == pSps2->picOrderCntType && 5260c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->numRefFrames == pSps2->numRefFrames && 5270c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->gapsInFrameNumValueAllowedFlag == 5280c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps2->gapsInFrameNumValueAllowedFlag && 5290c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->picWidthInMbs == pSps2->picWidthInMbs && 5300c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->picHeightInMbs == pSps2->picHeightInMbs && 5310c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->frameCroppingFlag == pSps2->frameCroppingFlag && 5320c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->vuiParametersPresentFlag == pSps2->vuiParametersPresentFlag) 5330c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5340c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSps1->picOrderCntType == 0) 5350c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5360c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSps1->maxPicOrderCntLsb != pSps2->maxPicOrderCntLsb) 5370c1bc742181ded4930842b46e9507372f0b1b963James Dong return 1; 5380c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5390c1bc742181ded4930842b46e9507372f0b1b963James Dong else if (pSps1->picOrderCntType == 1) 5400c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5410c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSps1->deltaPicOrderAlwaysZeroFlag != 5420c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps2->deltaPicOrderAlwaysZeroFlag || 5430c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->offsetForNonRefPic != pSps2->offsetForNonRefPic || 5440c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->offsetForTopToBottomField != 5450c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps2->offsetForTopToBottomField || 5460c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->numRefFramesInPicOrderCntCycle != 5470c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps2->numRefFramesInPicOrderCntCycle) 5480c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5490c1bc742181ded4930842b46e9507372f0b1b963James Dong return 1; 5500c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5510c1bc742181ded4930842b46e9507372f0b1b963James Dong else 5520c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5530c1bc742181ded4930842b46e9507372f0b1b963James Dong for (i = 0; i < pSps1->numRefFramesInPicOrderCntCycle; i++) 5540c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSps1->offsetForRefFrame[i] != 5550c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps2->offsetForRefFrame[i]) 5560c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5570c1bc742181ded4930842b46e9507372f0b1b963James Dong return 1; 5580c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5590c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5600c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5610c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSps1->frameCroppingFlag) 5620c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5630c1bc742181ded4930842b46e9507372f0b1b963James Dong if (pSps1->frameCropLeftOffset != pSps2->frameCropLeftOffset || 5640c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->frameCropRightOffset != pSps2->frameCropRightOffset || 5650c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->frameCropTopOffset != pSps2->frameCropTopOffset || 5660c1bc742181ded4930842b46e9507372f0b1b963James Dong pSps1->frameCropBottomOffset != pSps2->frameCropBottomOffset) 5670c1bc742181ded4930842b46e9507372f0b1b963James Dong { 5680c1bc742181ded4930842b46e9507372f0b1b963James Dong return 1; 5690c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5700c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5710c1bc742181ded4930842b46e9507372f0b1b963James Dong 5720c1bc742181ded4930842b46e9507372f0b1b963James Dong return 0; 5730c1bc742181ded4930842b46e9507372f0b1b963James Dong } 5740c1bc742181ded4930842b46e9507372f0b1b963James Dong 5750c1bc742181ded4930842b46e9507372f0b1b963James Dong return 1; 5760c1bc742181ded4930842b46e9507372f0b1b963James Dong} 5770c1bc742181ded4930842b46e9507372f0b1b963James Dong 578