ATSParser.cpp revision bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0
1cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber/* 2cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * Copyright (C) 2010 The Android Open Source Project 3cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * 4cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 5cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * you may not use this file except in compliance with the License. 6cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * You may obtain a copy of the License at 7cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * 8cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 9cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * 10cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * Unless required by applicable law or agreed to in writing, software 11cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 12cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * See the License for the specific language governing permissions and 14cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber * limitations under the License. 15cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber */ 16cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 176e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber//#define LOG_NDEBUG 0 186e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber#define LOG_TAG "ATSParser" 196e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber#include <utils/Log.h> 206e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber 21cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include "ATSParser.h" 22cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 23cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include "AnotherPacketSource.h" 246a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber#include "ESQueue.h" 2585f12e9b9062402d6110df3f7099707912040edbAndreas Huber#include "include/avc_utils.h" 26cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2785f12e9b9062402d6110df3f7099707912040edbAndreas Huber#include <media/stagefright/foundation/ABitReader.h> 28cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/ABuffer.h> 29cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/ADebug.h> 30cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/AMessage.h> 31cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/hexdump.h> 32cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/MediaDefs.h> 33cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/MediaErrors.h> 34cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/MetaData.h> 35cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <utils/KeyedVector.h> 36cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 37cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubernamespace android { 38cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 396e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber// I want the expression "y" evaluated even if verbose logging is off. 406e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber#define MY_LOGV(x, y) \ 416e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber do { unsigned tmp = y; LOGV(x, tmp); } while (0) 426e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber 43cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstatic const size_t kTSPacketSize = 188; 44cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 45cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct ATSParser::Program : public RefBase { 46cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber Program(unsigned programMapPID); 47cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 48cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool parsePID( 49cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned pid, unsigned payload_unit_start_indicator, 50cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br); 51cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 52bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber void signalDiscontinuity(bool isASeek); 532a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 54cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> getSource(SourceType type); 55cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 56bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber int64_t convertPTSToTimestamp(uint64_t PTS); 57bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 58cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprivate: 59cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mProgramMapPID; 60cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber KeyedVector<unsigned, sp<Stream> > mStreams; 61bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber bool mFirstPTSValid; 62bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber uint64_t mFirstPTS; 63cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 64cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parseProgramMap(ABitReader *br); 65cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 66cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(Program); 67cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber}; 68cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 69cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct ATSParser::Stream : public RefBase { 70bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber Stream(Program *program, unsigned elementaryPID, unsigned streamType); 71cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 72cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parse( 73cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator, 74cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br); 75cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 76bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber void signalDiscontinuity(bool isASeek); 772a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 78cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> getSource(SourceType type); 79cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 80cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprotected: 81cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber virtual ~Stream(); 82cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 83cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprivate: 84bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber Program *mProgram; 85cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mElementaryPID; 86cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mStreamType; 87cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 88cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> mBuffer; 89cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<AnotherPacketSource> mSource; 90cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool mPayloadStarted; 91cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 926a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber ElementaryStreamQueue mQueue; 936a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber 94cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void flush(); 95cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parsePES(ABitReader *br); 96cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 97cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void onPayloadData( 98cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, 99cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data, size_t size); 100cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 10182f7321b03eec1e40af9d681370f754ee0279582Andreas Huber void extractAACFrames(const sp<ABuffer> &buffer); 10282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 103cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(Stream); 104cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber}; 105cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 106cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 107cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 108cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::Program::Program(unsigned programMapPID) 109bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber : mProgramMapPID(programMapPID), 110bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTSValid(false), 111bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTS(0) { 112cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 113cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 114cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberbool ATSParser::Program::parsePID( 115cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned pid, unsigned payload_unit_start_indicator, 116cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br) { 117cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (pid == mProgramMapPID) { 118cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 119cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned skip = br->getBits(8); 120cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(skip * 8); 121cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 122cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 123cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseProgramMap(br); 124cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 125cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 126cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 127cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ssize_t index = mStreams.indexOfKey(pid); 128cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (index < 0) { 129cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return false; 130cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 131cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 132cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreams.editValueAt(index)->parse( 133cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber payload_unit_start_indicator, br); 134cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 135cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 136cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 137cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 138bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Hubervoid ATSParser::Program::signalDiscontinuity(bool isASeek) { 1392a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber for (size_t i = 0; i < mStreams.size(); ++i) { 140bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mStreams.editValueAt(i)->signalDiscontinuity(isASeek); 1412a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } 1422a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber} 1432a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 144cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Program::parseProgramMap(ABitReader *br) { 145cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned table_id = br->getBits(8); 1466e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" table_id = %u", table_id); 147cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(table_id, 0x02u); 148cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1496e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber unsigned section_syntax_indicator = br->getBits(1); 1506e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_syntax_indicator = %u", section_syntax_indicator); 1516e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber CHECK_EQ(section_syntax_indicator, 1u); 152cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 153cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 0u); 1546e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 155cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 156cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_length = br->getBits(12); 1576e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_length = %u", section_length); 158cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((section_length & 0xc00) == 0); 159cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LE(section_length, 1021u); 160cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1616e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" program_number = %u", br->getBits(16)); 1626e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 1636e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" version_number = %u", br->getBits(5)); 1646e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" current_next_indicator = %u", br->getBits(1)); 1656e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" section_number = %u", br->getBits(8)); 1666e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" last_section_number = %u", br->getBits(8)); 1676e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 1686e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" PCR_PID = 0x%04x", br->getBits(13)); 1696e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(4)); 170cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 171cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned program_info_length = br->getBits(12); 1726e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_info_length = %u", program_info_length); 173cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((program_info_length & 0xc00) == 0); 174cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 175cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(program_info_length * 8); // skip descriptors 176cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 177cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // infoBytesRemaining is the number of bytes that make up the 178cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // variable length section of ES_infos. It does not include the 179cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // final CRC. 180cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t infoBytesRemaining = section_length - 9 - program_info_length - 4; 181cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 182cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (infoBytesRemaining > 0) { 183cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(infoBytesRemaining, 5u); 184cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 185cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned streamType = br->getBits(8); 1866e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" stream_type = 0x%02x", streamType); 187cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1886e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 189cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 190cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned elementaryPID = br->getBits(13); 1916e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" elementary_PID = 0x%04x", elementaryPID); 192cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1936e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(4)); 194cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 195cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ES_info_length = br->getBits(12); 1966e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" ES_info_length = %u", ES_info_length); 197cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((ES_info_length & 0xc00) == 0); 198cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 199cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(infoBytesRemaining - 5, ES_info_length); 200cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 201cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#if 0 202cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(ES_info_length * 8); // skip descriptors 203cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#else 204cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned info_bytes_remaining = ES_info_length; 205cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (info_bytes_remaining >= 2) { 2066e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" tag = 0x%02x", br->getBits(8)); 207cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 208cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned descLength = br->getBits(8); 2096e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" len = %u", descLength); 210cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 211cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(info_bytes_remaining, 2 + descLength); 212cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 213cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(descLength * 8); 214cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 215cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber info_bytes_remaining -= descLength + 2; 216cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 217cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(info_bytes_remaining, 0u); 218cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#endif 219cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 220cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ssize_t index = mStreams.indexOfKey(elementaryPID); 221cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#if 0 // XXX revisit 222cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LT(index, 0); 223bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mStreams.add(elementaryPID, 224bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber new Stream(this, elementaryPID, streamType)); 225cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#else 226cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (index < 0) { 227bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mStreams.add(elementaryPID, 228bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber new Stream(this, elementaryPID, streamType)); 229cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 230cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#endif 231cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 232cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber infoBytesRemaining -= 5 + ES_info_length; 233cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 234cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 235cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(infoBytesRemaining, 0u); 236cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2376e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" CRC = 0x%08x", br->getBits(32)); 238cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 239cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 240cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::Program::getSource(SourceType type) { 241cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mStreams.size(); ++i) { 242cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> source = mStreams.editValueAt(i)->getSource(type); 243cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (source != NULL) { 244cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return source; 245cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 246cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 247cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 248cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 249cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 250cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 251bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huberint64_t ATSParser::Program::convertPTSToTimestamp(uint64_t PTS) { 252bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber if (!mFirstPTSValid) { 253bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTSValid = true; 254bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTS = PTS; 255bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber PTS = 0; 256bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } else if (PTS < mFirstPTS) { 257bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber PTS = 0; 258bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } else { 259bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber PTS -= mFirstPTS; 260bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } 261bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 262bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber return (PTS * 100) / 9; 263bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber} 264bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 265cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 266cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 267bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas HuberATSParser::Stream::Stream( 268bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber Program *program, unsigned elementaryPID, unsigned streamType) 269bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber : mProgram(program), 270bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mElementaryPID(elementaryPID), 271cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreamType(streamType), 27282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber mBuffer(new ABuffer(128 * 1024)), 2736a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mPayloadStarted(false), 2746a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mQueue(streamType == 0x1b 2756a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber ? ElementaryStreamQueue::H264 : ElementaryStreamQueue::AAC) { 276cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, 0); 277cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 278cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 279cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::Stream::~Stream() { 280cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 281cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 282cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::parse( 283cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator, ABitReader *br) { 284cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 285cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mPayloadStarted) { 286cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // Otherwise we run the danger of receiving the trailing bytes 287cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // of a PES packet that we never saw the start of and assuming 288cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // we have a a complete PES packet. 289cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 290cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber flush(); 291cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 292cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 293cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mPayloadStarted = true; 294cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 295cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 296cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (!mPayloadStarted) { 297cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 298cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 299cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 300cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t payloadSizeBits = br->numBitsLeft(); 3016e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber CHECK((payloadSizeBits % 8) == 0); 302cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 303cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LE(mBuffer->size() + payloadSizeBits / 8, mBuffer->capacity()); 304cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 305cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(mBuffer->data() + mBuffer->size(), br->data(), payloadSizeBits / 8); 306cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, mBuffer->size() + payloadSizeBits / 8); 307cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 308cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 309bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Hubervoid ATSParser::Stream::signalDiscontinuity(bool isASeek) { 3102a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber LOGV("Stream discontinuity"); 3112a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber mPayloadStarted = false; 3122a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber mBuffer->setRange(0, 0); 3132a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 3142a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber mQueue.clear(); 3152a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 316bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber if (isASeek) { 317bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber // This is only a "minor" discontinuity, we stay within the same 318bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber // bitstream. 319bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 320bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mSource->clear(); 321bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber return; 322bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } 323bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 3242a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber if (mStreamType == 0x1b && mSource != NULL) { 3252a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber // Don't signal discontinuities on audio streams. 3262a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber mSource->queueDiscontinuity(); 3272a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } 3282a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber} 3292a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 330cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::parsePES(ABitReader *br) { 331cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned packet_startcode_prefix = br->getBits(24); 332cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3336e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix); 334cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 335cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(packet_startcode_prefix, 0x000001u); 336cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 337cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned stream_id = br->getBits(8); 3386e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("stream_id = 0x%02x", stream_id); 339cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 340cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PES_packet_length = br->getBits(16); 3416e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PES_packet_length = %u", PES_packet_length); 342cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 343cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (stream_id != 0xbc // program_stream_map 344cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xbe // padding_stream 345cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xbf // private_stream_2 346cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf0 // ECM 347cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf1 // EMM 348cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xff // program_stream_directory 349cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf2 // DSMCC 350cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf8) { // H.222.1 type E 351cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(2), 2u); 352cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3536e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_scrambling_control = %u", br->getBits(2)); 3546e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_priority = %u", br->getBits(1)); 3556e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("data_alignment_indicator = %u", br->getBits(1)); 3566e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("copyright = %u", br->getBits(1)); 3576e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("original_or_copy = %u", br->getBits(1)); 358cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 359cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags = br->getBits(2); 3606e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PTS_DTS_flags = %u", PTS_DTS_flags); 361cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 362cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ESCR_flag = br->getBits(1); 3636e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ESCR_flag = %u", ESCR_flag); 364cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 365cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ES_rate_flag = br->getBits(1); 3666e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ES_rate_flag = %u", ES_rate_flag); 367cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 368cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned DSM_trick_mode_flag = br->getBits(1); 3696e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("DSM_trick_mode_flag = %u", DSM_trick_mode_flag); 370cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 371cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned additional_copy_info_flag = br->getBits(1); 3726e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("additional_copy_info_flag = %u", additional_copy_info_flag); 373cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3746e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_CRC_flag = %u", br->getBits(1)); 3756e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_extension_flag = %u", br->getBits(1)); 376cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 377cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PES_header_data_length = br->getBits(8); 3786e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PES_header_data_length = %u", PES_header_data_length); 379cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 380cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned optional_bytes_remaining = PES_header_data_length; 381cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 382cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber uint64_t PTS = 0, DTS = 0; 383cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 384cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PTS_DTS_flags == 2 || PTS_DTS_flags == 3) { 385cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 5u); 386cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 387cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(4), PTS_DTS_flags); 388cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 389cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS = ((uint64_t)br->getBits(3)) << 30; 390cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 391cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS |= ((uint64_t)br->getBits(15)) << 15; 392cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 393cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS |= br->getBits(15); 394cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 395cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3966e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PTS = %llu", PTS); 3976e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber // LOGI("PTS = %.2f secs", PTS / 90000.0f); 398cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 399cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 5; 400cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 401cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PTS_DTS_flags == 3) { 402cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 5u); 403cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 404cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(4), 1u); 405cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 406cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS = ((uint64_t)br->getBits(3)) << 30; 407cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 408cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS |= ((uint64_t)br->getBits(15)) << 15; 409cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 410cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS |= br->getBits(15); 411cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 412cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4136e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("DTS = %llu", DTS); 414cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 415cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 5; 416cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 417cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 418cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 419cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (ESCR_flag) { 420cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 6u); 421cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 422cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->getBits(2); 423cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 424cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber uint64_t ESCR = ((uint64_t)br->getBits(3)) << 30; 425cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 426cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ESCR |= ((uint64_t)br->getBits(15)) << 15; 427cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 428cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ESCR |= br->getBits(15); 429cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 430cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4316e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ESCR = %llu", ESCR); 4326e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("ESCR_extension = %u", br->getBits(9)); 433cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 434cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 435cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 436cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 6; 437cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 438cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 439cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (ES_rate_flag) { 440cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 3u); 441cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 442cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 4436e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("ES_rate = %u", br->getBits(22)); 444cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 445cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 446cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 3; 447cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 448cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 449cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(optional_bytes_remaining * 8); 450cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 451cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // ES data follows. 452cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 453cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PES_packet_length != 0) { 454cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(PES_packet_length, PES_header_data_length + 3); 455cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 456cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned dataLength = 457cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PES_packet_length - 3 - PES_header_data_length; 458cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4590da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber CHECK_GE(br->numBitsLeft(), dataLength * 8); 4600da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber 4610da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber onPayloadData( 4620da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber PTS_DTS_flags, PTS, DTS, br->data(), dataLength); 463cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 464cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(dataLength * 8); 465cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 4660da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber onPayloadData( 4670da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber PTS_DTS_flags, PTS, DTS, 4680da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber br->data(), br->numBitsLeft() / 8); 4690da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber 470cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t payloadSizeBits = br->numBitsLeft(); 471cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((payloadSizeBits % 8) == 0); 472cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4736e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("There's %d bytes of payload.", payloadSizeBits / 8); 474cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 475cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else if (stream_id == 0xbe) { // padding_stream 476cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(PES_packet_length, 0u); 477cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(PES_packet_length * 8); 478cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 479cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(PES_packet_length, 0u); 480cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(PES_packet_length * 8); 481cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 482cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 483cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 484cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::flush() { 485cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mBuffer->size() == 0) { 486cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 487cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 488cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4896e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("flushing stream 0x%04x size = %d", mElementaryPID, mBuffer->size()); 490cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 491cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader br(mBuffer->data(), mBuffer->size()); 492cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parsePES(&br); 493cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 494cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, 0); 495cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 496cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 497cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::onPayloadData( 498cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, 499cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data, size_t size) { 5006e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("onPayloadData mStreamType=0x%02x", mStreamType); 501cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 502cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK(PTS_DTS_flags == 2 || PTS_DTS_flags == 3); 503bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber int64_t timeUs = mProgram->convertPTSToTimestamp(PTS); 50482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 5056a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber status_t err = mQueue.appendData(data, size, timeUs); 5066a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber CHECK_EQ(err, (status_t)OK); 50782f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 5086a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber sp<ABuffer> accessUnit; 5096a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber while ((accessUnit = mQueue.dequeueAccessUnit()) != NULL) { 5106a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber if (mSource == NULL) { 5116a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber sp<MetaData> meta = mQueue.getFormat(); 51282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 5136a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber if (meta != NULL) { 5146a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber LOGV("created source!"); 5156a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mSource = new AnotherPacketSource(meta); 5166a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mSource->queueAccessUnit(accessUnit); 51782f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 5182a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } else if (mQueue.getFormat() != NULL) { 5192a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber // After a discontinuity we invalidate the queue's format 5202a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber // and won't enqueue any access units to the source until 5212a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber // the queue has reestablished the new format. 5226a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mSource->queueAccessUnit(accessUnit); 52382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 52482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 52582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber} 52682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 527cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::Stream::getSource(SourceType type) { 528cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if ((type == AVC_VIDEO && mStreamType == 0x1b) 529cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber || (type == MPEG2ADTS_AUDIO && mStreamType == 0x0f)) { 530cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return mSource; 531cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 532cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 533cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 534cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 535cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 536cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 537cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 538cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::ATSParser() { 539cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 540cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 541cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::~ATSParser() { 542cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 543cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 544cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::feedTSPacket(const void *data, size_t size) { 545cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(size, kTSPacketSize); 546cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 547cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader br((const uint8_t *)data, kTSPacketSize); 548cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseTS(&br); 549cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 550cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 551bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Hubervoid ATSParser::signalDiscontinuity(bool isASeek) { 5522a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 553bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mPrograms.editItemAt(i)->signalDiscontinuity(isASeek); 5542a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } 5552a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber} 5562a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 557cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseProgramAssociationTable(ABitReader *br) { 558cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned table_id = br->getBits(8); 5596e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" table_id = %u", table_id); 560cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(table_id, 0x00u); 561cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 562cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_syntax_indictor = br->getBits(1); 5636e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_syntax_indictor = %u", section_syntax_indictor); 564cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(section_syntax_indictor, 1u); 565cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 566cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 0u); 5676e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 568cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 569cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_length = br->getBits(12); 5706e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_length = %u", section_length); 571cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((section_length & 0xc00) == 0); 572cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 5736e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" transport_stream_id = %u", br->getBits(16)); 5746e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 5756e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" version_number = %u", br->getBits(5)); 5766e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" current_next_indicator = %u", br->getBits(1)); 5776e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" section_number = %u", br->getBits(8)); 5786e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" last_section_number = %u", br->getBits(8)); 579cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 580cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t numProgramBytes = (section_length - 5 /* header */ - 4 /* crc */); 581cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ((numProgramBytes % 4), 0u); 582cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 583cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < numProgramBytes / 4; ++i) { 584cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned program_number = br->getBits(16); 5856e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_number = %u", program_number); 586cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 5876e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 588cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 589cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (program_number == 0) { 5906e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" network_PID = 0x%04x", br->getBits(13)); 591cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 592cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned programMapPID = br->getBits(13); 593cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 5946e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_map_PID = 0x%04x", programMapPID); 595cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 596cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mPrograms.push(new Program(programMapPID)); 597cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 598cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 599cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6006e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" CRC = 0x%08x", br->getBits(32)); 601cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 602cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 603cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parsePID( 604cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br, unsigned PID, 605cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator) { 606cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PID == 0) { 607cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 608cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned skip = br->getBits(8); 609cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(skip * 8); 610cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 611cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseProgramAssociationTable(br); 612cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 613cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 614cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 615cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool handled = false; 616cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 617cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mPrograms.editItemAt(i)->parsePID( 618cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PID, payload_unit_start_indicator, br)) { 619cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber handled = true; 620cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber break; 621cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 622cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 623cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 624cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (!handled) { 6256e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PID 0x%04x not handled.", PID); 626cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 627cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 628cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 629cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseAdaptationField(ABitReader *br) { 630cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned adaptation_field_length = br->getBits(8); 631cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_length > 0) { 632cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(adaptation_field_length * 8); // XXX 633cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 634cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 635cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 636cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseTS(ABitReader *br) { 6376e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("---"); 638cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 639cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned sync_byte = br->getBits(8); 640cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(sync_byte, 0x47u); 641cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6426e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_error_indicator = %u", br->getBits(1)); 643cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 644cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator = br->getBits(1); 6456e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("payload_unit_start_indicator = %u", payload_unit_start_indicator); 646cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6476e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_priority = %u", br->getBits(1)); 648cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 649cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PID = br->getBits(13); 6506e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PID = 0x%04x", PID); 651cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6526e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_scrambling_control = %u", br->getBits(2)); 653cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 654cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned adaptation_field_control = br->getBits(2); 6556e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("adaptation_field_control = %u", adaptation_field_control); 656cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6570da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber unsigned continuity_counter = br->getBits(4); 6580da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber LOGV("continuity_counter = %u", continuity_counter); 6590da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber 6600da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber // LOGI("PID = 0x%04x, continuity_counter = %u", PID, continuity_counter); 661cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 662cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_control == 2 || adaptation_field_control == 3) { 663cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseAdaptationField(br); 664cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 665cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 666cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_control == 1 || adaptation_field_control == 3) { 667cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parsePID(br, PID, payload_unit_start_indicator); 668cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 669cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 670cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 671cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::getSource(SourceType type) { 672cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 673cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> source = mPrograms.editItemAt(i)->getSource(type); 674cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 675cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (source != NULL) { 676cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return source; 677cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 678cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 679cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 680cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 681cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 682cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 683cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} // namespace android 684