ATSParser.cpp revision 6e4c5c499999c04c2477b987f9e64f3ff2bf1a06
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" 2485f12e9b9062402d6110df3f7099707912040edbAndreas Huber#include "include/avc_utils.h" 25cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2685f12e9b9062402d6110df3f7099707912040edbAndreas Huber#include <media/stagefright/foundation/ABitReader.h> 27cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/ABuffer.h> 28cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/ADebug.h> 29cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/AMessage.h> 30cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/hexdump.h> 31cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/MediaDefs.h> 32cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/MediaErrors.h> 33cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/MetaData.h> 34cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <utils/KeyedVector.h> 35cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 36cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubernamespace android { 37cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 386e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber// I want the expression "y" evaluated even if verbose logging is off. 396e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber#define MY_LOGV(x, y) \ 406e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber do { unsigned tmp = y; LOGV(x, tmp); } while (0) 416e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber 42cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstatic const size_t kTSPacketSize = 188; 43cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 44cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct ATSParser::Program : public RefBase { 45cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber Program(unsigned programMapPID); 46cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 47cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool parsePID( 48cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned pid, unsigned payload_unit_start_indicator, 49cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br); 50cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 51cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> getSource(SourceType type); 52cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 53cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprivate: 54cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mProgramMapPID; 55cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber KeyedVector<unsigned, sp<Stream> > mStreams; 56cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 57cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parseProgramMap(ABitReader *br); 58cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 59cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(Program); 60cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber}; 61cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 62cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct ATSParser::Stream : public RefBase { 63cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber Stream(unsigned elementaryPID, unsigned streamType); 64cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 65cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parse( 66cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator, 67cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br); 68cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 69cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> getSource(SourceType type); 70cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 71cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprotected: 72cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber virtual ~Stream(); 73cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 74cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprivate: 75cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mElementaryPID; 76cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned mStreamType; 77cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 78cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> mBuffer; 79cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<AnotherPacketSource> mSource; 80cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool mPayloadStarted; 81cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 82cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void flush(); 83cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void parsePES(ABitReader *br); 84cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 85cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void onPayloadData( 86cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, 87cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data, size_t size); 88cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 8982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber void extractAACFrames(const sp<ABuffer> &buffer); 9082f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 91cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(Stream); 92cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber}; 93cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 94cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 95cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 96cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::Program::Program(unsigned programMapPID) 97cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber : mProgramMapPID(programMapPID) { 98cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 99cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 100cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberbool ATSParser::Program::parsePID( 101cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned pid, unsigned payload_unit_start_indicator, 102cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br) { 103cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (pid == mProgramMapPID) { 104cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 105cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned skip = br->getBits(8); 106cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(skip * 8); 107cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 108cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 109cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseProgramMap(br); 110cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 111cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 112cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 113cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ssize_t index = mStreams.indexOfKey(pid); 114cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (index < 0) { 115cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return false; 116cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 117cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 118cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreams.editValueAt(index)->parse( 119cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber payload_unit_start_indicator, br); 120cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 121cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 122cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 123cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 124cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Program::parseProgramMap(ABitReader *br) { 125cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned table_id = br->getBits(8); 1266e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" table_id = %u", table_id); 127cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(table_id, 0x02u); 128cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1296e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber unsigned section_syntax_indicator = br->getBits(1); 1306e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_syntax_indicator = %u", section_syntax_indicator); 1316e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber CHECK_EQ(section_syntax_indicator, 1u); 132cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 133cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 0u); 1346e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 135cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 136cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_length = br->getBits(12); 1376e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_length = %u", section_length); 138cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((section_length & 0xc00) == 0); 139cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LE(section_length, 1021u); 140cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1416e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" program_number = %u", br->getBits(16)); 1426e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 1436e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" version_number = %u", br->getBits(5)); 1446e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" current_next_indicator = %u", br->getBits(1)); 1456e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" section_number = %u", br->getBits(8)); 1466e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" last_section_number = %u", br->getBits(8)); 1476e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 1486e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" PCR_PID = 0x%04x", br->getBits(13)); 1496e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(4)); 150cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 151cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned program_info_length = br->getBits(12); 1526e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_info_length = %u", program_info_length); 153cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((program_info_length & 0xc00) == 0); 154cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 155cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(program_info_length * 8); // skip descriptors 156cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 157cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // infoBytesRemaining is the number of bytes that make up the 158cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // variable length section of ES_infos. It does not include the 159cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // final CRC. 160cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t infoBytesRemaining = section_length - 9 - program_info_length - 4; 161cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 162cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (infoBytesRemaining > 0) { 163cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(infoBytesRemaining, 5u); 164cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 165cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned streamType = br->getBits(8); 1666e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" stream_type = 0x%02x", streamType); 167cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1686e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 169cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 170cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned elementaryPID = br->getBits(13); 1716e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" elementary_PID = 0x%04x", elementaryPID); 172cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1736e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(4)); 174cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 175cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ES_info_length = br->getBits(12); 1766e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" ES_info_length = %u", ES_info_length); 177cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((ES_info_length & 0xc00) == 0); 178cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 179cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(infoBytesRemaining - 5, ES_info_length); 180cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 181cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#if 0 182cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(ES_info_length * 8); // skip descriptors 183cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#else 184cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned info_bytes_remaining = ES_info_length; 185cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (info_bytes_remaining >= 2) { 1866e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" tag = 0x%02x", br->getBits(8)); 187cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 188cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned descLength = br->getBits(8); 1896e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" len = %u", descLength); 190cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 191cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(info_bytes_remaining, 2 + descLength); 192cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 193cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(descLength * 8); 194cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 195cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber info_bytes_remaining -= descLength + 2; 196cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 197cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(info_bytes_remaining, 0u); 198cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#endif 199cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 200cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ssize_t index = mStreams.indexOfKey(elementaryPID); 201cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#if 0 // XXX revisit 202cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LT(index, 0); 203cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreams.add(elementaryPID, new Stream(elementaryPID, streamType)); 204cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#else 205cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (index < 0) { 206cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreams.add(elementaryPID, new Stream(elementaryPID, streamType)); 207cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 208cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#endif 209cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 210cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber infoBytesRemaining -= 5 + ES_info_length; 211cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 212cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 213cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(infoBytesRemaining, 0u); 214cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2156e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" CRC = 0x%08x", br->getBits(32)); 216cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 217cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 218cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::Program::getSource(SourceType type) { 219cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mStreams.size(); ++i) { 220cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> source = mStreams.editValueAt(i)->getSource(type); 221cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (source != NULL) { 222cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return source; 223cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 224cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 225cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 226cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 227cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 228cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 229cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 230cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 231cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::Stream::Stream(unsigned elementaryPID, unsigned streamType) 232cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber : mElementaryPID(elementaryPID), 233cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mStreamType(streamType), 23482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber mBuffer(new ABuffer(128 * 1024)), 235cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mPayloadStarted(false) { 236cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, 0); 237cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 238cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 239cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::Stream::~Stream() { 240cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 241cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 242cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::parse( 243cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator, ABitReader *br) { 244cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 245cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mPayloadStarted) { 246cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // Otherwise we run the danger of receiving the trailing bytes 247cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // of a PES packet that we never saw the start of and assuming 248cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // we have a a complete PES packet. 249cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 250cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber flush(); 251cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 252cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 253cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mPayloadStarted = true; 254cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 255cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 256cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (!mPayloadStarted) { 257cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 258cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 259cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 260cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t payloadSizeBits = br->numBitsLeft(); 2616e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber CHECK((payloadSizeBits % 8) == 0); 262cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 263cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LE(mBuffer->size() + payloadSizeBits / 8, mBuffer->capacity()); 264cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 265cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(mBuffer->data() + mBuffer->size(), br->data(), payloadSizeBits / 8); 266cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, mBuffer->size() + payloadSizeBits / 8); 267cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 268cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 269cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::parsePES(ABitReader *br) { 270cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned packet_startcode_prefix = br->getBits(24); 271cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2726e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix); 273cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 274cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(packet_startcode_prefix, 0x000001u); 275cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 276cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned stream_id = br->getBits(8); 2776e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("stream_id = 0x%02x", stream_id); 278cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 279cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PES_packet_length = br->getBits(16); 2806e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PES_packet_length = %u", PES_packet_length); 281cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 282cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (stream_id != 0xbc // program_stream_map 283cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xbe // padding_stream 284cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xbf // private_stream_2 285cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf0 // ECM 286cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf1 // EMM 287cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xff // program_stream_directory 288cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf2 // DSMCC 289cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && stream_id != 0xf8) { // H.222.1 type E 290cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(2), 2u); 291cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 2926e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_scrambling_control = %u", br->getBits(2)); 2936e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_priority = %u", br->getBits(1)); 2946e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("data_alignment_indicator = %u", br->getBits(1)); 2956e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("copyright = %u", br->getBits(1)); 2966e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("original_or_copy = %u", br->getBits(1)); 297cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 298cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags = br->getBits(2); 2996e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PTS_DTS_flags = %u", PTS_DTS_flags); 300cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 301cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ESCR_flag = br->getBits(1); 3026e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ESCR_flag = %u", ESCR_flag); 303cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 304cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned ES_rate_flag = br->getBits(1); 3056e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ES_rate_flag = %u", ES_rate_flag); 306cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 307cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned DSM_trick_mode_flag = br->getBits(1); 3086e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("DSM_trick_mode_flag = %u", DSM_trick_mode_flag); 309cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 310cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned additional_copy_info_flag = br->getBits(1); 3116e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("additional_copy_info_flag = %u", additional_copy_info_flag); 312cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3136e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_CRC_flag = %u", br->getBits(1)); 3146e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("PES_extension_flag = %u", br->getBits(1)); 315cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 316cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PES_header_data_length = br->getBits(8); 3176e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PES_header_data_length = %u", PES_header_data_length); 318cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 319cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned optional_bytes_remaining = PES_header_data_length; 320cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 321cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber uint64_t PTS = 0, DTS = 0; 322cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 323cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PTS_DTS_flags == 2 || PTS_DTS_flags == 3) { 324cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 5u); 325cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 326cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(4), PTS_DTS_flags); 327cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 328cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS = ((uint64_t)br->getBits(3)) << 30; 329cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 330cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS |= ((uint64_t)br->getBits(15)) << 15; 331cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 332cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS |= br->getBits(15); 333cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 334cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3356e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PTS = %llu", PTS); 3366e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber // LOGI("PTS = %.2f secs", PTS / 90000.0f); 337cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 338cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 5; 339cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 340cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PTS_DTS_flags == 3) { 341cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 5u); 342cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 343cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(4), 1u); 344cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 345cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS = ((uint64_t)br->getBits(3)) << 30; 346cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 347cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS |= ((uint64_t)br->getBits(15)) << 15; 348cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 349cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DTS |= br->getBits(15); 350cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 351cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3526e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("DTS = %llu", DTS); 353cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 354cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 5; 355cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 356cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 357cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 358cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (ESCR_flag) { 359cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 6u); 360cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 361cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->getBits(2); 362cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 363cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber uint64_t ESCR = ((uint64_t)br->getBits(3)) << 30; 364cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 365cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ESCR |= ((uint64_t)br->getBits(15)) << 15; 366cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 367cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ESCR |= br->getBits(15); 368cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 369cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 3706e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("ESCR = %llu", ESCR); 3716e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("ESCR_extension = %u", br->getBits(9)); 372cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 373cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 374cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 375cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 6; 376cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 377cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 378cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (ES_rate_flag) { 379cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(optional_bytes_remaining, 3u); 380cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 381cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 3826e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("ES_rate = %u", br->getBits(22)); 383cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 1u); 384cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 385cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber optional_bytes_remaining -= 3; 386cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 387cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 388cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(optional_bytes_remaining * 8); 389cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 390cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // ES data follows. 391cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 392cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber onPayloadData( 393cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PTS_DTS_flags, PTS, DTS, 394cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->data(), br->numBitsLeft() / 8); 395cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 396cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PES_packet_length != 0) { 397cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_GE(PES_packet_length, PES_header_data_length + 3); 398cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 399cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned dataLength = 400cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PES_packet_length - 3 - PES_header_data_length; 401cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 402cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->numBitsLeft(), dataLength * 8); 403cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 404cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(dataLength * 8); 405cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 406cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t payloadSizeBits = br->numBitsLeft(); 407cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((payloadSizeBits % 8) == 0); 408cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4096e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("There's %d bytes of payload.", payloadSizeBits / 8); 410cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 411cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else if (stream_id == 0xbe) { // padding_stream 412cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(PES_packet_length, 0u); 413cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(PES_packet_length * 8); 414cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 415cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(PES_packet_length, 0u); 416cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(PES_packet_length * 8); 417cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 418cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 419cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 420cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::flush() { 421cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mBuffer->size() == 0) { 422cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 423cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 424cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 4256e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("flushing stream 0x%04x size = %d", mElementaryPID, mBuffer->size()); 426cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 427cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader br(mBuffer->data(), mBuffer->size()); 428cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parsePES(&br); 429cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 430cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mBuffer->setRange(0, 0); 431cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 432cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 433cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstatic sp<ABuffer> FindNAL( 434cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data, size_t size, unsigned nalType, 435cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t *stopOffset) { 436cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool foundStart = false; 437cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t startOffset = 0; 438cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 439cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t offset = 0; 440cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (;;) { 441cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (offset + 3 < size 442cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && memcmp("\x00\x00\x00\x01", &data[offset], 4)) { 443cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ++offset; 444cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 445cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 446cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (foundStart) { 447cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t nalSize; 448cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (offset + 3 >= size) { 449cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber nalSize = size - startOffset; 450cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 451cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber nalSize = offset - startOffset; 452cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 453cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 454cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> nal = new ABuffer(nalSize); 455cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(nal->data(), &data[startOffset], nalSize); 456cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 457cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (stopOffset != NULL) { 458cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *stopOffset = startOffset + nalSize; 459cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 460cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 461cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return nal; 462cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 463cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 464cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (offset + 4 >= size) { 465cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 466cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 467cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 468cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if ((data[offset + 4] & 0x1f) == nalType) { 469cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber foundStart = true; 470cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber startOffset = offset + 4; 471cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 472cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 473cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber offset += 4; 474cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 475cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 476cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 477cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstatic sp<ABuffer> MakeAVCCodecSpecificData( 478cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const sp<ABuffer> &buffer, int32_t *width, int32_t *height) { 479cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data = buffer->data(); 480cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t size = buffer->size(); 481cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 482cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> seqParamSet = FindNAL(data, size, 7, NULL); 483cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (seqParamSet == NULL) { 484cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 485cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 486cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 48785f12e9b9062402d6110df3f7099707912040edbAndreas Huber FindAVCDimensions(seqParamSet, width, height); 488cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 489cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t stopOffset; 490cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> picParamSet = FindNAL(data, size, 8, &stopOffset); 491cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK(picParamSet != NULL); 492cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 493cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber buffer->setRange(stopOffset, size - stopOffset); 4946e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGI("buffer has %d bytes left.", buffer->size()); 495cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 496cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t csdSize = 497cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 1 + 3 + 1 + 1 498cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber + 2 * 1 + seqParamSet->size() 499cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber + 1 + 2 * 1 + picParamSet->size(); 500cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 501cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> csd = new ABuffer(csdSize); 502cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber uint8_t *out = csd->data(); 503cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 504cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = 0x01; // configurationVersion 505cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(out, seqParamSet->data() + 1, 3); // profile/level... 506cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber out += 3; 507cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = (0x3f << 2) | 1; // lengthSize == 2 bytes 508cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = 0xe0 | 1; 509cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 510cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = seqParamSet->size() >> 8; 511cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = seqParamSet->size() & 0xff; 512cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(out, seqParamSet->data(), seqParamSet->size()); 513cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber out += seqParamSet->size(); 514cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 515cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = 1; 516cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 517cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = picParamSet->size() >> 8; 518cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *out++ = picParamSet->size() & 0xff; 519cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(out, picParamSet->data(), picParamSet->size()); 520cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 521cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return csd; 522cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 523cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 524cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstatic bool getNextNALUnit( 525cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t **_data, size_t *_size, 526cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t **nalStart, size_t *nalSize) { 527cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data = *_data; 528cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t size = *_size; 529cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 530cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *nalStart = NULL; 531cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *nalSize = 0; 532cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 533cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (size == 0) { 534cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return false; 535cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 536cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 537cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t offset = 0; 538cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (;;) { 539cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LT(offset + 2, size); 540cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 541cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (!memcmp("\x00\x00\x01", &data[offset], 3)) { 542cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber break; 543cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 544cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 545cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ((unsigned)data[offset], 0x00u); 546cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ++offset; 547cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 548cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 549cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber offset += 3; 550cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t startOffset = offset; 551cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 552cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (offset + 2 < size 553cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && memcmp("\x00\x00\x00", &data[offset], 3) 554cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber && memcmp("\x00\x00\x01", &data[offset], 3)) { 555cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ++offset; 556cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 557cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 558cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (offset + 2 >= size) { 559cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *nalStart = &data[startOffset]; 560cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *nalSize = size - startOffset; 561cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 562cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *_data = NULL; 563cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *_size = 0; 564cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 565cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 566cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 567cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 568cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t endOffset = offset; 569cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 570cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (offset + 2 < size && memcmp("\x00\x00\x01", &data[offset], 3)) { 571cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ((unsigned)data[offset], 0x00u); 572cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ++offset; 573cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 574cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 575cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LT(offset + 2, size); 576cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 577cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *nalStart = &data[startOffset]; 578cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *nalSize = endOffset - startOffset; 579cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 580cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *_data = &data[offset]; 581cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *_size = size - offset; 582cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 583cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return true; 584cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 585cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 586cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<ABuffer> MakeCleanAVCData(const uint8_t *data, size_t size) { 587cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *tmpData = data; 588cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t tmpSize = size; 589cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 590cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t totalSize = 0; 591cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *nalStart; 592cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t nalSize; 593cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (getNextNALUnit(&tmpData, &tmpSize, &nalStart, &nalSize)) { 594cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber totalSize += 4 + nalSize; 595cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 596cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 597cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> buffer = new ABuffer(totalSize); 598cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t offset = 0; 599cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber while (getNextNALUnit(&data, &size, &nalStart, &nalSize)) { 600cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(buffer->data() + offset, "\x00\x00\x00\x01", 4); 601cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(buffer->data() + offset + 4, nalStart, nalSize); 602cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 603cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber offset += 4 + nalSize; 604cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 605cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 606cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return buffer; 607cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 608cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 609cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstatic sp<ABuffer> FindMPEG2ADTSConfig( 610cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const sp<ABuffer> &buffer, int32_t *sampleRate, int32_t *channelCount) { 611cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader br(buffer->data(), buffer->size()); 612cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 613cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br.getBits(12), 0xfffu); 614cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br.getBits(1), 0u); 615cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br.getBits(2), 0u); 616cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br.getBits(1); // protection_absent 617cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned profile = br.getBits(2); 6186e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGI("profile = %u", profile); 619cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(profile, 3u); 620cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned sampling_freq_index = br.getBits(4); 621cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br.getBits(1); // private_bit 622cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned channel_configuration = br.getBits(3); 623cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_NE(channel_configuration, 0u); 624cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 6256e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGI("sampling_freq_index = %u", sampling_freq_index); 6266e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGI("channel_configuration = %u", channel_configuration); 627cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 628cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_LE(sampling_freq_index, 11u); 629cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber static const int32_t kSamplingFreq[] = { 630cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 631cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 16000, 12000, 11025, 8000 632cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber }; 633cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *sampleRate = kSamplingFreq[sampling_freq_index]; 634cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 635cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber *channelCount = channel_configuration; 636cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 637cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber static const uint8_t kStaticESDS[] = { 638cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x03, 22, 639cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x00, 0x00, // ES_ID 640cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x00, // streamDependenceFlag, URL_Flag, OCRstreamFlag 641cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 642cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x04, 17, 643cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x40, // Audio ISO/IEC 14496-3 644cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x00, 0x00, 0x00, 0x00, 645cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x00, 0x00, 0x00, 0x00, 646cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x00, 0x00, 0x00, 0x00, 647cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 648cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 0x05, 2, 649cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // AudioSpecificInfo follows 650cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 651cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // oooo offf fccc c000 652cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // o - audioObjectType 653cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // f - samplingFreqIndex 654cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // c - channelConfig 655cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber }; 656cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> csd = new ABuffer(sizeof(kStaticESDS) + 2); 657cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(csd->data(), kStaticESDS, sizeof(kStaticESDS)); 658cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 659cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber csd->data()[sizeof(kStaticESDS)] = 660cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ((profile + 1) << 3) | (sampling_freq_index >> 1); 661cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 662cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber csd->data()[sizeof(kStaticESDS) + 1] = 663cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ((sampling_freq_index << 7) & 0x80) | (channel_configuration << 3); 664cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 66582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber // hexdump(csd->data(), csd->size()); 666cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return csd; 667cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 668cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 669cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::Stream::onPayloadData( 670cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS, 671cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber const uint8_t *data, size_t size) { 6726e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("onPayloadData mStreamType=0x%02x", mStreamType); 673cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 674cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> buffer; 675cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 676cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mStreamType == 0x1b) { 677cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber buffer = MakeCleanAVCData(data, size); 678cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 679cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // hexdump(data, size); 680cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 681cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber buffer = new ABuffer(size); 682cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber memcpy(buffer->data(), data, size); 683cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 684cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 685cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mSource == NULL) { 686cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MetaData> meta = new MetaData; 687cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 688cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mStreamType == 0x1b) { 689cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC); 690cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 691cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber int32_t width, height; 692cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> csd = MakeAVCCodecSpecificData(buffer, &width, &height); 693cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 694cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (csd == NULL) { 695cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 696cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 697cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 698cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setData(kKeyAVCC, 0, csd->data(), csd->size()); 699cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setInt32(kKeyWidth, width); 700cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setInt32(kKeyHeight, height); 701cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 702cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(mStreamType, 0x0fu); 703cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 704cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AAC); 705cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 706cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber int32_t sampleRate, channelCount; 707cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ABuffer> csd = 708cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber FindMPEG2ADTSConfig(buffer, &sampleRate, &channelCount); 709cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 7106e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGI("sampleRate = %d", sampleRate); 7116e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGI("channelCount = %d", channelCount); 712cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 713cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setInt32(kKeySampleRate, sampleRate); 714cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setInt32(kKeyChannelCount, channelCount); 715cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 716cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber meta->setData(kKeyESDS, 0, csd->data(), csd->size()); 717cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 718cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 7196e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGI("created source!"); 720cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mSource = new AnotherPacketSource(meta); 721cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 722cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber // fall through 723cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 724cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 725cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK(PTS_DTS_flags == 2 || PTS_DTS_flags == 3); 726cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber buffer->meta()->setInt64("time", (PTS * 100) / 9); 727cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 728cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mStreamType == 0x0f) { 72982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber extractAACFrames(buffer); 730cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 731cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 732cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mSource->queueAccessUnit(buffer); 733cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 734cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 73582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber// Disassemble one or more ADTS frames into their constituent parts and 73682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber// leave only the concatenated raw_data_blocks in the buffer. 73782f7321b03eec1e40af9d681370f754ee0279582Andreas Hubervoid ATSParser::Stream::extractAACFrames(const sp<ABuffer> &buffer) { 73882f7321b03eec1e40af9d681370f754ee0279582Andreas Huber size_t dstOffset = 0; 73982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 74082f7321b03eec1e40af9d681370f754ee0279582Andreas Huber size_t offset = 0; 74182f7321b03eec1e40af9d681370f754ee0279582Andreas Huber while (offset < buffer->size()) { 74282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber CHECK_LE(offset + 7, buffer->size()); 74382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 74482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber ABitReader bits(buffer->data() + offset, buffer->size() - offset); 74582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 74682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber // adts_fixed_header 74782f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 74882f7321b03eec1e40af9d681370f754ee0279582Andreas Huber CHECK_EQ(bits.getBits(12), 0xfffu); 74982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber bits.skipBits(3); // ID, layer 75082f7321b03eec1e40af9d681370f754ee0279582Andreas Huber bool protection_absent = bits.getBits(1) != 0; 75182f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 75282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber // profile_ObjectType, sampling_frequency_index, private_bits, 75382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber // channel_configuration, original_copy, home 75482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber bits.skipBits(12); 75582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 75682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber // adts_variable_header 75782f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 75882f7321b03eec1e40af9d681370f754ee0279582Andreas Huber // copyright_identification_bit, copyright_identification_start 75982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber bits.skipBits(2); 76082f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 76182f7321b03eec1e40af9d681370f754ee0279582Andreas Huber unsigned aac_frame_length = bits.getBits(13); 76282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 76382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber bits.skipBits(11); // adts_buffer_fullness 76482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 76582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber unsigned number_of_raw_data_blocks_in_frame = bits.getBits(2); 76682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 76782f7321b03eec1e40af9d681370f754ee0279582Andreas Huber if (number_of_raw_data_blocks_in_frame == 0) { 76882f7321b03eec1e40af9d681370f754ee0279582Andreas Huber size_t scan = offset + aac_frame_length; 76982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 77082f7321b03eec1e40af9d681370f754ee0279582Andreas Huber offset += 7; 77182f7321b03eec1e40af9d681370f754ee0279582Andreas Huber if (!protection_absent) { 77282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber offset += 2; 77382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 77482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 77582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber CHECK_LE(scan, buffer->size()); 77682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 7776e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("found aac raw data block at [0x%08x ; 0x%08x)", offset, scan); 77882f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 77982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber memmove(&buffer->data()[dstOffset], &buffer->data()[offset], 78082f7321b03eec1e40af9d681370f754ee0279582Andreas Huber scan - offset); 78182f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 78282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber dstOffset += scan - offset; 78382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber offset = scan; 78482f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } else { 78582f7321b03eec1e40af9d681370f754ee0279582Andreas Huber // To be implemented. 78682f7321b03eec1e40af9d681370f754ee0279582Andreas Huber TRESPASS(); 78782f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 78882f7321b03eec1e40af9d681370f754ee0279582Andreas Huber } 78982f7321b03eec1e40af9d681370f754ee0279582Andreas Huber CHECK_EQ(offset, buffer->size()); 79082f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 79182f7321b03eec1e40af9d681370f754ee0279582Andreas Huber buffer->setRange(buffer->offset(), dstOffset); 79282f7321b03eec1e40af9d681370f754ee0279582Andreas Huber} 79382f7321b03eec1e40af9d681370f754ee0279582Andreas Huber 794cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::Stream::getSource(SourceType type) { 795cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if ((type == AVC_VIDEO && mStreamType == 0x1b) 796cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber || (type == MPEG2ADTS_AUDIO && mStreamType == 0x0f)) { 797cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return mSource; 798cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 799cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 800cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 801cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 802cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 803cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber//////////////////////////////////////////////////////////////////////////////// 804cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 805cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::ATSParser() { 806cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 807cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 808cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas HuberATSParser::~ATSParser() { 809cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 810cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 811cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::feedTSPacket(const void *data, size_t size) { 812cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(size, kTSPacketSize); 813cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 814cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader br((const uint8_t *)data, kTSPacketSize); 815cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseTS(&br); 816cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 817cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 818cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseProgramAssociationTable(ABitReader *br) { 819cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned table_id = br->getBits(8); 8206e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" table_id = %u", table_id); 821cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(table_id, 0x00u); 822cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 823cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_syntax_indictor = br->getBits(1); 8246e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_syntax_indictor = %u", section_syntax_indictor); 825cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(section_syntax_indictor, 1u); 826cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 827cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(br->getBits(1), 0u); 8286e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 829cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 830cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned section_length = br->getBits(12); 8316e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" section_length = %u", section_length); 832cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK((section_length & 0xc00) == 0); 833cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 8346e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" transport_stream_id = %u", br->getBits(16)); 8356e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(2)); 8366e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" version_number = %u", br->getBits(5)); 8376e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" current_next_indicator = %u", br->getBits(1)); 8386e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" section_number = %u", br->getBits(8)); 8396e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" last_section_number = %u", br->getBits(8)); 840cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 841cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber size_t numProgramBytes = (section_length - 5 /* header */ - 4 /* crc */); 842cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ((numProgramBytes % 4), 0u); 843cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 844cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < numProgramBytes / 4; ++i) { 845cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned program_number = br->getBits(16); 8466e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_number = %u", program_number); 847cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 8486e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" reserved = %u", br->getBits(3)); 849cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 850cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (program_number == 0) { 8516e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" network_PID = 0x%04x", br->getBits(13)); 852cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } else { 853cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned programMapPID = br->getBits(13); 854cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 8556e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV(" program_map_PID = 0x%04x", programMapPID); 856cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 857cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber mPrograms.push(new Program(programMapPID)); 858cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 859cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 860cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 8616e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV(" CRC = 0x%08x", br->getBits(32)); 862cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 863cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 864cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parsePID( 865cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber ABitReader *br, unsigned PID, 866cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator) { 867cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (PID == 0) { 868cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (payload_unit_start_indicator) { 869cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned skip = br->getBits(8); 870cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(skip * 8); 871cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 872cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseProgramAssociationTable(br); 873cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return; 874cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 875cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 876cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber bool handled = false; 877cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 878cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (mPrograms.editItemAt(i)->parsePID( 879cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber PID, payload_unit_start_indicator, br)) { 880cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber handled = true; 881cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber break; 882cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 883cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 884cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 885cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (!handled) { 8866e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PID 0x%04x not handled.", PID); 887cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 888cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 889cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 890cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseAdaptationField(ABitReader *br) { 891cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned adaptation_field_length = br->getBits(8); 892cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_length > 0) { 893cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber br->skipBits(adaptation_field_length * 8); // XXX 894cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 895cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 896cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 897cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubervoid ATSParser::parseTS(ABitReader *br) { 8986e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("---"); 899cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 900cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned sync_byte = br->getBits(8); 901cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber CHECK_EQ(sync_byte, 0x47u); 902cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 9036e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_error_indicator = %u", br->getBits(1)); 904cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 905cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned payload_unit_start_indicator = br->getBits(1); 9066e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("payload_unit_start_indicator = %u", payload_unit_start_indicator); 907cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 9086e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_priority = %u", br->getBits(1)); 909cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 910cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned PID = br->getBits(13); 9116e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("PID = 0x%04x", PID); 912cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 9136e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("transport_scrambling_control = %u", br->getBits(2)); 914cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 915cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber unsigned adaptation_field_control = br->getBits(2); 9166e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber LOGV("adaptation_field_control = %u", adaptation_field_control); 917cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 9186e4c5c499999c04c2477b987f9e64f3ff2bf1a06Andreas Huber MY_LOGV("continuity_counter = %u", br->getBits(4)); 919cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 920cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_control == 2 || adaptation_field_control == 3) { 921cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parseAdaptationField(br); 922cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 923cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 924cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (adaptation_field_control == 1 || adaptation_field_control == 3) { 925cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber parsePID(br, PID, payload_unit_start_indicator); 926cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 927cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 928cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 929cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubersp<MediaSource> ATSParser::getSource(SourceType type) { 930cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber for (size_t i = 0; i < mPrograms.size(); ++i) { 931cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<MediaSource> source = mPrograms.editItemAt(i)->getSource(type); 932cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 933cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber if (source != NULL) { 934cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return source; 935cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 936cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber } 937cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 938cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber return NULL; 939cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} 940cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 941cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} // namespace android 942