1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef MPEG2_TS_EXTRACTOR_H_ 18 19 #define MPEG2_TS_EXTRACTOR_H_ 20 21 #include <media/stagefright/foundation/ABase.h> 22 #include <media/stagefright/MediaExtractor.h> 23 #include <utils/threads.h> 24 #include <utils/Vector.h> 25 26 namespace android { 27 28 struct AMessage; 29 struct AnotherPacketSource; 30 struct ATSParser; 31 struct DataSource; 32 struct MPEG2TSSource; 33 struct String8; 34 struct LiveSession; 35 36 struct MPEG2TSExtractor : public MediaExtractor { 37 MPEG2TSExtractor(const sp<DataSource> &source); 38 39 virtual size_t countTracks(); 40 virtual sp<MediaSource> getTrack(size_t index); 41 virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); 42 43 virtual sp<MetaData> getMetaData(); 44 45 virtual uint32_t flags() const; 46 47 void setLiveSession(const sp<LiveSession> &liveSession); 48 void seekTo(int64_t seekTimeUs); 49 50 private: 51 friend struct MPEG2TSSource; 52 53 mutable Mutex mLock; 54 55 sp<DataSource> mDataSource; 56 sp<LiveSession> mLiveSession; 57 58 sp<ATSParser> mParser; 59 60 Vector<sp<AnotherPacketSource> > mSourceImpls; 61 62 off64_t mOffset; 63 64 void init(); 65 status_t feedMore(); 66 67 DISALLOW_EVIL_CONSTRUCTORS(MPEG2TSExtractor); 68 }; 69 70 bool SniffMPEG2TS( 71 const sp<DataSource> &source, String8 *mimeType, float *confidence, 72 sp<AMessage> *); 73 74 } // namespace android 75 76 #endif // MPEG2_TS_EXTRACTOR_H_ 77