127c174483a8ae9688d5d4897c19074f62c7f1701James Dong/* 227c174483a8ae9688d5d4897c19074f62c7f1701James Dong * Copyright (C) 2010 The Android Open Source Project 327c174483a8ae9688d5d4897c19074f62c7f1701James Dong * 427c174483a8ae9688d5d4897c19074f62c7f1701James Dong * Licensed under the Apache License, Version 2.0 (the "License"); 527c174483a8ae9688d5d4897c19074f62c7f1701James Dong * you may not use this file except in compliance with the License. 627c174483a8ae9688d5d4897c19074f62c7f1701James Dong * You may obtain a copy of the License at 727c174483a8ae9688d5d4897c19074f62c7f1701James Dong * 827c174483a8ae9688d5d4897c19074f62c7f1701James Dong * http://www.apache.org/licenses/LICENSE-2.0 927c174483a8ae9688d5d4897c19074f62c7f1701James Dong * 1027c174483a8ae9688d5d4897c19074f62c7f1701James Dong * Unless required by applicable law or agreed to in writing, software 1127c174483a8ae9688d5d4897c19074f62c7f1701James Dong * distributed under the License is distributed on an "AS IS" BASIS, 1227c174483a8ae9688d5d4897c19074f62c7f1701James Dong * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1327c174483a8ae9688d5d4897c19074f62c7f1701James Dong * See the License for the specific language governing permissions and 1427c174483a8ae9688d5d4897c19074f62c7f1701James Dong * limitations under the License. 1527c174483a8ae9688d5d4897c19074f62c7f1701James Dong */ 1627c174483a8ae9688d5d4897c19074f62c7f1701James Dong 17cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#ifndef MPEG2_TS_EXTRACTOR_H_ 18cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 19cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#define MPEG2_TS_EXTRACTOR_H_ 20cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 21cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/foundation/ABase.h> 22cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <media/stagefright/MediaExtractor.h> 23540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim#include <media/stagefright/MediaSource.h> 24cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <utils/threads.h> 25540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim#include <utils/KeyedVector.h> 26cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#include <utils/Vector.h> 27cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 289558f6dd733dc450270f38b9a139d384d273ce0aWei Jia#include "mpeg2ts/ATSParser.h" 299558f6dd733dc450270f38b9a139d384d273ce0aWei Jia 30cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Hubernamespace android { 31cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 325a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huberstruct AMessage; 33cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct AnotherPacketSource; 34cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct ATSParser; 3586a58cabe322b746ab0eb17f0cade34ed68ba60eBernhard Rosenkränzerclass DataSource; 36cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct MPEG2TSSource; 37ee4e1b1a63758941460ae79a064249d3a5189443Lajos Molnarclass String8; 38cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 39cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberstruct MPEG2TSExtractor : public MediaExtractor { 40cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber MPEG2TSExtractor(const sp<DataSource> &source); 41cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 42cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber virtual size_t countTracks(); 43b2487f03f12dcafdb801fc0007c8df8412397f44Marco Nelissen virtual sp<IMediaSource> getTrack(size_t index); 44cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); 45cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 46cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber virtual sp<MetaData> getMetaData(); 47cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 48bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber virtual uint32_t flags() const; 49a48a51c056198a778755cbed52884dc30b74ac0aMarco Nelissen virtual const char * name() { return "MPEG2TSExtractor"; } 50bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 51cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberprivate: 52cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber friend struct MPEG2TSSource; 53cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 54bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber mutable Mutex mLock; 55cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 56cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<DataSource> mDataSource; 57bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0Andreas Huber 58cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber sp<ATSParser> mParser; 59cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 609558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // Used to remember SyncEvent occurred in feedMore() when called from init(), 619558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // because init() needs to update |mSourceImpls| before adding SyncPoint. 629558f6dd733dc450270f38b9a139d384d273ce0aWei Jia ATSParser::SyncEvent mLastSyncEvent; 639558f6dd733dc450270f38b9a139d384d273ce0aWei Jia 64cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber Vector<sp<AnotherPacketSource> > mSourceImpls; 65cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 66540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim Vector<KeyedVector<int64_t, off64_t> > mSyncPoints; 67540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim // Sync points used for seeking --- normally one for video track is used. 68540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim // If no video track is present, audio track will be used instead. 69540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim KeyedVector<int64_t, off64_t> *mSeekSyncPoints; 70540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim 71c7fc37a3dab9bd1f96713649f351b5990e6316ffJames Dong off64_t mOffset; 72cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 73cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber void init(); 749558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // Try to feed more data from source to parser. 759558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // |isInit| means this function is called inside init(). This is a signal to 769558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // save SyncEvent so that init() can add SyncPoint after it updates |mSourceImpls|. 779558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // This function returns OK if expected amount of data is fed from DataSource to 789558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // parser and is successfully parsed. Otherwise, various error codes could be 799558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // returned, e.g., ERROR_END_OF_STREAM, or no data availalbe from DataSource, or 809558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // the data has syntax error during parsing, etc. 819558f6dd733dc450270f38b9a139d384d273ce0aWei Jia status_t feedMore(bool isInit = false); 82540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim status_t seek(int64_t seekTimeUs, 83540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim const MediaSource::ReadOptions::SeekMode& seekMode); 84540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim status_t queueDiscontinuityForSeek(int64_t actualSeekTimeUs); 85540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim status_t seekBeyond(int64_t seekTimeUs); 86540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim 87540006666b4191cd78391378f1c66c21bcf0c4cdWonsik Kim status_t feedUntilBufferAvailable(const sp<AnotherPacketSource> &impl); 88cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 899558f6dd733dc450270f38b9a139d384d273ce0aWei Jia // Add a SynPoint derived from |event|. 909558f6dd733dc450270f38b9a139d384d273ce0aWei Jia void addSyncPoint_l(const ATSParser::SyncEvent &event); 919558f6dd733dc450270f38b9a139d384d273ce0aWei Jia 92cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber DISALLOW_EVIL_CONSTRUCTORS(MPEG2TSExtractor); 93cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber}; 94cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 95cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huberbool SniffMPEG2TS( 965a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huber const sp<DataSource> &source, String8 *mimeType, float *confidence, 975a1c3529e4fa2f8a11054181294e0ce79fff8dd3Andreas Huber sp<AMessage> *); 98cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 99cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber} // namespace android 100cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber 101cda17c606b0fe3ccda4dc68a6d43882410ea2462Andreas Huber#endif // MPEG2_TS_EXTRACTOR_H_ 102