ATSParser.cpp revision 43c3e6ce02215ca99d506458f596cb1211639f29
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 { 46f933441648ef6a71dee783d733aac17b9508b452Andreas Huber Program(ATSParser *parser, unsigned programMapPID); 47cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 48cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool parsePID( 49cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned pid, unsigned payload_unit_start_indicator, 50cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br); 51cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 52f933441648ef6a71dee783d733aac17b9508b452Andreas Huber void signalDiscontinuity(DiscontinuityType type); 53f933441648ef6a71dee783d733aac17b9508b452Andreas Huber void signalEOS(status_t finalResult); 542a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 55cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> getSource(SourceType type); 56cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 57bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber int64_t convertPTSToTimestamp(uint64_t PTS); 58bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 5943c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber bool PTSTimeDeltaEstablished() const { 6043c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber return mFirstPTSValid; 6143c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber } 6243c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 63cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprivate: 64f933441648ef6a71dee783d733aac17b9508b452Andreas Huber ATSParser *mParser; 65cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mProgramMapPID; 66cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber KeyedVector<unsigned, sp<Stream> > mStreams; 67bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber bool mFirstPTSValid; 68bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber uint64_t mFirstPTS; 69cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 70cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parseProgramMap(ABitReader *br); 71cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 72cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(Program); 73cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber}; 74cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 75cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct ATSParser::Stream : public RefBase { 76bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber Stream(Program *program, unsigned elementaryPID, unsigned streamType); 77cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 78cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parse( 79cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator, 80cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br); 81cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 82f933441648ef6a71dee783d733aac17b9508b452Andreas Huber void signalDiscontinuity(DiscontinuityType type); 83f933441648ef6a71dee783d733aac17b9508b452Andreas Huber void signalEOS(status_t finalResult); 842a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 85cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> getSource(SourceType type); 86cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 87cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprotected: 88cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber virtual ~Stream(); 89cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 90cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprivate: 91bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber Program *mProgram; 92cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mElementaryPID; 93cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mStreamType; 94cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 95cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> mBuffer; 96cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<AnotherPacketSource> mSource; 97cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool mPayloadStarted; 98cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 996a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber ElementaryStreamQueue mQueue; 1006a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber 101cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void flush(); 102cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parsePES(ABitReader *br); 103cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 104cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void onPayloadData( 105cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, 106cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data, size_t size); 107cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 10882f7321b03eec1e40af9d681370f754ee0279582Andreas Huber void extractAACFrames(const sp<ABuffer> &buffer); 10982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 110cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(Stream); 111cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber}; 112cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 113cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 114cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 115f933441648ef6a71dee783d733aac17b9508b452Andreas HuberATSParser::Program::Program(ATSParser *parser, unsigned programMapPID) 116f933441648ef6a71dee783d733aac17b9508b452Andreas Huber : mParser(parser), 117f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mProgramMapPID(programMapPID), 118bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTSValid(false), 119bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTS(0) { 120cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 121cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 122cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberbool ATSParser::Program::parsePID( 123cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned pid, unsigned payload_unit_start_indicator, 124cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br) { 125cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (pid == mProgramMapPID) { 126cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 127cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned skip = br->getBits(8); 128cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(skip * 8); 129cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 130cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 131cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseProgramMap(br); 132cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 133cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 134cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 135cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ssize_t index = mStreams.indexOfKey(pid); 136cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (index < 0) { 137cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return false; 138cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 139cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 140cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreams.editValueAt(index)->parse( 141cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber payload_unit_start_indicator, br); 142cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 143cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 144cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 145cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 146f933441648ef6a71dee783d733aac17b9508b452Andreas Hubervoid ATSParser::Program::signalDiscontinuity(DiscontinuityType type) { 1472a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber for (size_t i = 0; i < mStreams.size(); ++i) { 148f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mStreams.editValueAt(i)->signalDiscontinuity(type); 149f933441648ef6a71dee783d733aac17b9508b452Andreas Huber } 150f933441648ef6a71dee783d733aac17b9508b452Andreas Huber} 151f933441648ef6a71dee783d733aac17b9508b452Andreas Huber 152f933441648ef6a71dee783d733aac17b9508b452Andreas Hubervoid ATSParser::Program::signalEOS(status_t finalResult) { 153f933441648ef6a71dee783d733aac17b9508b452Andreas Huber for (size_t i = 0; i < mStreams.size(); ++i) { 154f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mStreams.editValueAt(i)->signalEOS(finalResult); 1552a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } 1562a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber} 1572a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 158cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Program::parseProgramMap(ABitReader *br) { 159cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned table_id = br->getBits(8); 1606e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" table_id = %u", table_id); 161cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(table_id, 0x02u); 162cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1636e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber unsigned section_syntax_indicator = br->getBits(1); 1646e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_syntax_indicator = %u", section_syntax_indicator); 1656e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber CHECK_EQ(section_syntax_indicator, 1u); 166cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 167cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 0u); 1686e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 169cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 170cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_length = br->getBits(12); 1716e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_length = %u", section_length); 172f933441648ef6a71dee783d733aac17b9508b452Andreas Huber CHECK_EQ(section_length & 0xc00, 0u); 173cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LE(section_length, 1021u); 174cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1756e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" program_number = %u", br->getBits(16)); 1766e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 1776e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" version_number = %u", br->getBits(5)); 1786e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" current_next_indicator = %u", br->getBits(1)); 1796e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" section_number = %u", br->getBits(8)); 1806e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" last_section_number = %u", br->getBits(8)); 1816e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 1826e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" PCR_PID = 0x%04x", br->getBits(13)); 1836e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(4)); 184cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 185cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned program_info_length = br->getBits(12); 1866e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_info_length = %u", program_info_length); 187f933441648ef6a71dee783d733aac17b9508b452Andreas Huber CHECK_EQ(program_info_length & 0xc00, 0u); 188cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 189cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(program_info_length * 8); // skip descriptors 190cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 191cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // infoBytesRemaining is the number of bytes that make up the 192cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // variable length section of ES_infos. It does not include the 193cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // final CRC. 194cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t infoBytesRemaining = section_length - 9 - program_info_length - 4; 195cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 196cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (infoBytesRemaining > 0) { 197cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(infoBytesRemaining, 5u); 198cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 199cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned streamType = br->getBits(8); 2006e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" stream_type = 0x%02x", streamType); 201cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2026e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 203cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 204cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned elementaryPID = br->getBits(13); 2056e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" elementary_PID = 0x%04x", elementaryPID); 206cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2076e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(4)); 208cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 209cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ES_info_length = br->getBits(12); 2106e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" ES_info_length = %u", ES_info_length); 211f933441648ef6a71dee783d733aac17b9508b452Andreas Huber CHECK_EQ(ES_info_length & 0xc00, 0u); 212cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 213cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(infoBytesRemaining - 5, ES_info_length); 214cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 215cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#if 0 216cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(ES_info_length * 8); // skip descriptors 217cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#else 218cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned info_bytes_remaining = ES_info_length; 219cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (info_bytes_remaining >= 2) { 2206e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" tag = 0x%02x", br->getBits(8)); 221cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 222cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned descLength = br->getBits(8); 2236e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" len = %u", descLength); 224cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 225cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(info_bytes_remaining, 2 + descLength); 226cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 227cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(descLength * 8); 228cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 229cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber info_bytes_remaining -= descLength + 2; 230cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 231cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(info_bytes_remaining, 0u); 232cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#endif 233cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 234cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ssize_t index = mStreams.indexOfKey(elementaryPID); 235cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#if 0 // XXX revisit 236cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LT(index, 0); 237bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mStreams.add(elementaryPID, 238bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber new Stream(this, elementaryPID, streamType)); 239cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#else 240cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (index < 0) { 241bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mStreams.add(elementaryPID, 242bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber new Stream(this, elementaryPID, streamType)); 243cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 244cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#endif 245cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 246cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber infoBytesRemaining -= 5 + ES_info_length; 247cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 248cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 249cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(infoBytesRemaining, 0u); 250cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2516e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" CRC = 0x%08x", br->getBits(32)); 252cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 253cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 254cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::Program::getSource(SourceType type) { 255decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber size_t index = (type == MPEG2ADTS_AUDIO) ? 0 : 0; 256decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber 257cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mStreams.size(); ++i) { 258cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> source = mStreams.editValueAt(i)->getSource(type); 259cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (source != NULL) { 260decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber if (index == 0) { 261decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber return source; 262decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber } 263decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber --index; 264cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 265cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 266cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 267cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 268cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 269cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 270bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huberint64_t ATSParser::Program::convertPTSToTimestamp(uint64_t PTS) { 271bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber if (!mFirstPTSValid) { 272bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTSValid = true; 273bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mFirstPTS = PTS; 274bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber PTS = 0; 275bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } else if (PTS < mFirstPTS) { 276bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber PTS = 0; 277bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } else { 278bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber PTS -= mFirstPTS; 279bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } 280bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 281bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber return (PTS * 100) / 9; 282bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber} 283bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 284cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 285cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 286bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas HuberATSParser::Stream::Stream( 287bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber Program *program, unsigned elementaryPID, unsigned streamType) 288bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber : mProgram(program), 289bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mElementaryPID(elementaryPID), 290cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreamType(streamType), 2913831a066bcf1019864a94d2bc7b4c9241efc5c22Andreas Huber mBuffer(new ABuffer(192 * 1024)), 2926a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mPayloadStarted(false), 2936a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mQueue(streamType == 0x1b 2946a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber ? ElementaryStreamQueue::H264 : ElementaryStreamQueue::AAC) { 295cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, 0); 296e332a9181cf6a3155ed1a0fd2afc212ccb1f2753Andreas Huber 297e332a9181cf6a3155ed1a0fd2afc212ccb1f2753Andreas Huber LOGV("new stream PID 0x%02x, type 0x%02x", elementaryPID, streamType); 298cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 299cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 300cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::Stream::~Stream() { 301cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 302cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 303cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::parse( 304cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator, ABitReader *br) { 305cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 306cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mPayloadStarted) { 307cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // Otherwise we run the danger of receiving the trailing bytes 308cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // of a PES packet that we never saw the start of and assuming 309cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // we have a a complete PES packet. 310cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 311cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber flush(); 312cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 313cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 314cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mPayloadStarted = true; 315cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 316cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 317cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (!mPayloadStarted) { 318cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 319cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 320cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 321cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t payloadSizeBits = br->numBitsLeft(); 322f933441648ef6a71dee783d733aac17b9508b452Andreas Huber CHECK_EQ(payloadSizeBits % 8, 0u); 323cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 324cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LE(mBuffer->size() + payloadSizeBits / 8, mBuffer->capacity()); 325cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 326cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(mBuffer->data() + mBuffer->size(), br->data(), payloadSizeBits / 8); 327cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, mBuffer->size() + payloadSizeBits / 8); 328cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 329cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 330f933441648ef6a71dee783d733aac17b9508b452Andreas Hubervoid ATSParser::Stream::signalDiscontinuity(DiscontinuityType type) { 3312a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber mPayloadStarted = false; 3322a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber mBuffer->setRange(0, 0); 3332a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 334f933441648ef6a71dee783d733aac17b9508b452Andreas Huber switch (type) { 335f933441648ef6a71dee783d733aac17b9508b452Andreas Huber case DISCONTINUITY_HTTPLIVE: 336f933441648ef6a71dee783d733aac17b9508b452Andreas Huber { 337f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mQueue.clear(true); 3382a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 339f933441648ef6a71dee783d733aac17b9508b452Andreas Huber if (mStreamType == 0x1b && mSource != NULL) { 340f933441648ef6a71dee783d733aac17b9508b452Andreas Huber // Don't signal discontinuities on audio streams. 3415bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mSource->queueDiscontinuity(type); 342f933441648ef6a71dee783d733aac17b9508b452Andreas Huber } 343f933441648ef6a71dee783d733aac17b9508b452Andreas Huber break; 344f933441648ef6a71dee783d733aac17b9508b452Andreas Huber } 345f933441648ef6a71dee783d733aac17b9508b452Andreas Huber 346f933441648ef6a71dee783d733aac17b9508b452Andreas Huber case DISCONTINUITY_SEEK: 347f933441648ef6a71dee783d733aac17b9508b452Andreas Huber case DISCONTINUITY_FORMATCHANGE: 348f933441648ef6a71dee783d733aac17b9508b452Andreas Huber { 349f933441648ef6a71dee783d733aac17b9508b452Andreas Huber bool isASeek = (type == DISCONTINUITY_SEEK); 350bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 351f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mQueue.clear(!isASeek); 352f933441648ef6a71dee783d733aac17b9508b452Andreas Huber 353f933441648ef6a71dee783d733aac17b9508b452Andreas Huber if (mSource != NULL) { 354f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mSource->clear(); 3555bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mSource->queueDiscontinuity(type); 356f933441648ef6a71dee783d733aac17b9508b452Andreas Huber } 357f933441648ef6a71dee783d733aac17b9508b452Andreas Huber break; 358e332a9181cf6a3155ed1a0fd2afc212ccb1f2753Andreas Huber } 359f933441648ef6a71dee783d733aac17b9508b452Andreas Huber 360f933441648ef6a71dee783d733aac17b9508b452Andreas Huber default: 361f933441648ef6a71dee783d733aac17b9508b452Andreas Huber TRESPASS(); 362f933441648ef6a71dee783d733aac17b9508b452Andreas Huber break; 363bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber } 364f933441648ef6a71dee783d733aac17b9508b452Andreas Huber} 365bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 366f933441648ef6a71dee783d733aac17b9508b452Andreas Hubervoid ATSParser::Stream::signalEOS(status_t finalResult) { 367f933441648ef6a71dee783d733aac17b9508b452Andreas Huber if (mSource != NULL) { 368f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mSource->signalEOS(finalResult); 3692a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } 3702a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber} 3712a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 372cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::parsePES(ABitReader *br) { 373cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned packet_startcode_prefix = br->getBits(24); 374cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3756e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix); 376cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 377cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(packet_startcode_prefix, 0x000001u); 378cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 379cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned stream_id = br->getBits(8); 3806e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("stream_id = 0x%02x", stream_id); 381cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 382cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PES_packet_length = br->getBits(16); 3836e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PES_packet_length = %u", PES_packet_length); 384cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 385cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (stream_id != 0xbc // program_stream_map 386cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xbe // padding_stream 387cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xbf // private_stream_2 388cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf0 // ECM 389cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf1 // EMM 390cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xff // program_stream_directory 391cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf2 // DSMCC 392cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf8) { // H.222.1 type E 393cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(2), 2u); 394cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3956e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_scrambling_control = %u", br->getBits(2)); 3966e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_priority = %u", br->getBits(1)); 3976e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("data_alignment_indicator = %u", br->getBits(1)); 3986e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("copyright = %u", br->getBits(1)); 3996e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("original_or_copy = %u", br->getBits(1)); 400cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 401cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags = br->getBits(2); 4026e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PTS_DTS_flags = %u", PTS_DTS_flags); 403cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 404cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ESCR_flag = br->getBits(1); 4056e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ESCR_flag = %u", ESCR_flag); 406cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 407cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ES_rate_flag = br->getBits(1); 4086e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ES_rate_flag = %u", ES_rate_flag); 409cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 410cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned DSM_trick_mode_flag = br->getBits(1); 4116e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("DSM_trick_mode_flag = %u", DSM_trick_mode_flag); 412cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 413cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned additional_copy_info_flag = br->getBits(1); 4146e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("additional_copy_info_flag = %u", additional_copy_info_flag); 415cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4166e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_CRC_flag = %u", br->getBits(1)); 4176e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_extension_flag = %u", br->getBits(1)); 418cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 419cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PES_header_data_length = br->getBits(8); 4206e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PES_header_data_length = %u", PES_header_data_length); 421cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 422cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned optional_bytes_remaining = PES_header_data_length; 423cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 424cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber uint64_t PTS = 0, DTS = 0; 425cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 426cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PTS_DTS_flags == 2 || PTS_DTS_flags == 3) { 427cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 5u); 428cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 429cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(4), PTS_DTS_flags); 430cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 431cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS = ((uint64_t)br->getBits(3)) << 30; 432cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 433cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS |= ((uint64_t)br->getBits(15)) << 15; 434cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 435cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS |= br->getBits(15); 436cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 437cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4386e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PTS = %llu", PTS); 4396e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber // LOGI("PTS = %.2f secs", PTS / 90000.0f); 440cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 441cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 5; 442cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 443cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PTS_DTS_flags == 3) { 444cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 5u); 445cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 446cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(4), 1u); 447cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 448cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS = ((uint64_t)br->getBits(3)) << 30; 449cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 450cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS |= ((uint64_t)br->getBits(15)) << 15; 451cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 452cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS |= br->getBits(15); 453cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 454cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4556e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("DTS = %llu", DTS); 456cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 457cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 5; 458cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 459cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 460cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 461cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (ESCR_flag) { 462cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 6u); 463cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 464cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->getBits(2); 465cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 466cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber uint64_t ESCR = ((uint64_t)br->getBits(3)) << 30; 467cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 468cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ESCR |= ((uint64_t)br->getBits(15)) << 15; 469cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 470cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ESCR |= br->getBits(15); 471cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 472cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4736e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ESCR = %llu", ESCR); 4746e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("ESCR_extension = %u", br->getBits(9)); 475cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 476cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 477cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 478cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 6; 479cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 480cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 481cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (ES_rate_flag) { 482cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 3u); 483cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 484cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 4856e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("ES_rate = %u", br->getBits(22)); 486cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 487cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 488cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 3; 489cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 490cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 491cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(optional_bytes_remaining * 8); 492cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 493cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // ES data follows. 494cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 495cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PES_packet_length != 0) { 496cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(PES_packet_length, PES_header_data_length + 3); 497cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 498cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned dataLength = 499cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PES_packet_length - 3 - PES_header_data_length; 500cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 5010da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber CHECK_GE(br->numBitsLeft(), dataLength * 8); 5020da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber 5030da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber onPayloadData( 5040da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber PTS_DTS_flags, PTS, DTS, br->data(), dataLength); 505cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 506cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(dataLength * 8); 507cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 5080da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber onPayloadData( 5090da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber PTS_DTS_flags, PTS, DTS, 5100da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber br->data(), br->numBitsLeft() / 8); 5110da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber 512cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t payloadSizeBits = br->numBitsLeft(); 513f933441648ef6a71dee783d733aac17b9508b452Andreas Huber CHECK_EQ(payloadSizeBits % 8, 0u); 514cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 5156e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("There's %d bytes of payload.", payloadSizeBits / 8); 516cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 517cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else if (stream_id == 0xbe) { // padding_stream 518cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(PES_packet_length, 0u); 519cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(PES_packet_length * 8); 520cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 521cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(PES_packet_length, 0u); 522cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(PES_packet_length * 8); 523cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 524cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 525cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 526cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::flush() { 527cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mBuffer->size() == 0) { 528cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 529cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 530cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 5316e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("flushing stream 0x%04x size = %d", mElementaryPID, mBuffer->size()); 532cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 533cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader br(mBuffer->data(), mBuffer->size()); 534cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parsePES(&br); 535cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 536cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, 0); 537cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 538cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 539cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::onPayloadData( 540cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, 541cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data, size_t size) { 5426e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("onPayloadData mStreamType=0x%02x", mStreamType); 543cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 544cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK(PTS_DTS_flags == 2 || PTS_DTS_flags == 3); 545bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber int64_t timeUs = mProgram->convertPTSToTimestamp(PTS); 54682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 5476a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber status_t err = mQueue.appendData(data, size, timeUs); 548decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber 549decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber if (err != OK) { 550decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber return; 551decd96988e495133e4a1728f612d4c9fdb4d218eAndreas Huber } 55282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 5536a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber sp<ABuffer> accessUnit; 5546a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber while ((accessUnit = mQueue.dequeueAccessUnit()) != NULL) { 5556a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber if (mSource == NULL) { 5566a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber sp<MetaData> meta = mQueue.getFormat(); 55782f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 5586a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber if (meta != NULL) { 5596a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber LOGV("created source!"); 5606a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mSource = new AnotherPacketSource(meta); 561f933441648ef6a71dee783d733aac17b9508b452Andreas Huber 5626a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mSource->queueAccessUnit(accessUnit); 56382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 5642a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } else if (mQueue.getFormat() != NULL) { 5652a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber // After a discontinuity we invalidate the queue's format 5662a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber // and won't enqueue any access units to the source until 5672a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber // the queue has reestablished the new format. 5685bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 5695bc087c573c70c84c6a39946457590b42d392a33Andreas Huber if (mSource->getFormat() == NULL) { 5705bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mSource->setFormat(mQueue.getFormat()); 5715bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 5726a63a939601645404fd98f58c19cc38ca818d99eAndreas Huber mSource->queueAccessUnit(accessUnit); 57382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 57482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 57582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber} 57682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 577cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::Stream::getSource(SourceType type) { 578cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if ((type == AVC_VIDEO && mStreamType == 0x1b) 579cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber || (type == MPEG2ADTS_AUDIO && mStreamType == 0x0f)) { 580cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return mSource; 581cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 582cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 583cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 584cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 585cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 586cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 587cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 588cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::ATSParser() { 589cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 590cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 591cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::~ATSParser() { 592cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 593cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 594cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::feedTSPacket(const void *data, size_t size) { 595cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(size, kTSPacketSize); 596cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 597cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader br((const uint8_t *)data, kTSPacketSize); 598cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseTS(&br); 599cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 600cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 601f933441648ef6a71dee783d733aac17b9508b452Andreas Hubervoid ATSParser::signalDiscontinuity(DiscontinuityType type) { 602f933441648ef6a71dee783d733aac17b9508b452Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 603f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mPrograms.editItemAt(i)->signalDiscontinuity(type); 604f933441648ef6a71dee783d733aac17b9508b452Andreas Huber } 605f933441648ef6a71dee783d733aac17b9508b452Andreas Huber} 606f933441648ef6a71dee783d733aac17b9508b452Andreas Huber 607f933441648ef6a71dee783d733aac17b9508b452Andreas Hubervoid ATSParser::signalEOS(status_t finalResult) { 608f933441648ef6a71dee783d733aac17b9508b452Andreas Huber CHECK_NE(finalResult, (status_t)OK); 609f933441648ef6a71dee783d733aac17b9508b452Andreas Huber 6102a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 611f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mPrograms.editItemAt(i)->signalEOS(finalResult); 6122a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber } 6132a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber} 6142a4d22d79e927f2245537921e10fc5fda1c47a29Andreas Huber 615cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseProgramAssociationTable(ABitReader *br) { 616cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned table_id = br->getBits(8); 6176e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" table_id = %u", table_id); 618cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(table_id, 0x00u); 619cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 620cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_syntax_indictor = br->getBits(1); 6216e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_syntax_indictor = %u", section_syntax_indictor); 622cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(section_syntax_indictor, 1u); 623cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 624cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 0u); 6256e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 626cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 627cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_length = br->getBits(12); 6286e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_length = %u", section_length); 629f933441648ef6a71dee783d733aac17b9508b452Andreas Huber CHECK_EQ(section_length & 0xc00, 0u); 630cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6316e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" transport_stream_id = %u", br->getBits(16)); 6326e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 6336e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" version_number = %u", br->getBits(5)); 6346e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" current_next_indicator = %u", br->getBits(1)); 6356e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" section_number = %u", br->getBits(8)); 6366e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" last_section_number = %u", br->getBits(8)); 637cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 638cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t numProgramBytes = (section_length - 5 /* header */ - 4 /* crc */); 639cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ((numProgramBytes % 4), 0u); 640cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 641cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < numProgramBytes / 4; ++i) { 642cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned program_number = br->getBits(16); 6436e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_number = %u", program_number); 644cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6456e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 646cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 647cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (program_number == 0) { 6486e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" network_PID = 0x%04x", br->getBits(13)); 649cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 650cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned programMapPID = br->getBits(13); 651cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6526e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_map_PID = 0x%04x", programMapPID); 653cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 654f933441648ef6a71dee783d733aac17b9508b452Andreas Huber mPrograms.push(new Program(this, programMapPID)); 655cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 656cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 657cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6586e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" CRC = 0x%08x", br->getBits(32)); 659cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 660cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 661cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parsePID( 662cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br, unsigned PID, 663cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator) { 664cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PID == 0) { 665cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 666cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned skip = br->getBits(8); 667cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(skip * 8); 668cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 669cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseProgramAssociationTable(br); 670cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 671cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 672cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 673cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool handled = false; 674cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 675cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mPrograms.editItemAt(i)->parsePID( 676cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PID, payload_unit_start_indicator, br)) { 677cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber handled = true; 678cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber break; 679cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 680cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 681cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 682cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (!handled) { 6836e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PID 0x%04x not handled.", PID); 684cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 685cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 686cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 687cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseAdaptationField(ABitReader *br) { 688cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned adaptation_field_length = br->getBits(8); 689cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_length > 0) { 690cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(adaptation_field_length * 8); // XXX 691cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 692cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 693cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 694cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseTS(ABitReader *br) { 6956e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("---"); 696cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 697cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned sync_byte = br->getBits(8); 698cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(sync_byte, 0x47u); 699cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 7006e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_error_indicator = %u", br->getBits(1)); 701cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 702cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator = br->getBits(1); 7036e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("payload_unit_start_indicator = %u", payload_unit_start_indicator); 704cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 7056e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_priority = %u", br->getBits(1)); 706cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 707cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PID = br->getBits(13); 7086e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PID = 0x%04x", PID); 709cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 7106e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_scrambling_control = %u", br->getBits(2)); 711cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 712cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned adaptation_field_control = br->getBits(2); 7136e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("adaptation_field_control = %u", adaptation_field_control); 714cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 7150da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber unsigned continuity_counter = br->getBits(4); 7160da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber LOGV("continuity_counter = %u", continuity_counter); 7170da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber 7180da4dab0a45a2bc1d95cbc6ef6a4850ed2569584Andreas Huber // LOGI("PID = 0x%04x, continuity_counter = %u", PID, continuity_counter); 719cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 720cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_control == 2 || adaptation_field_control == 3) { 721cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseAdaptationField(br); 722cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 723cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 724cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_control == 1 || adaptation_field_control == 3) { 725cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parsePID(br, PID, payload_unit_start_indicator); 726cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 727cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 728cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 729cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::getSource(SourceType type) { 730cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 731cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> source = mPrograms.editItemAt(i)->getSource(type); 732cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 733cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (source != NULL) { 734cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return source; 735cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 736cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 737cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 738cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 739cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 740cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 74143c3e6ce02215ca99d506458f596cb1211639f29Andreas Huberbool ATSParser::PTSTimeDeltaEstablished() { 74243c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber if (mPrograms.isEmpty()) { 74343c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber return false; 74443c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber } 74543c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 74643c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber return mPrograms.editItemAt(0)->PTSTimeDeltaEstablished(); 74743c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber} 74843c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 749cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} // namespace android 750