1 /* 2 * Copyright (C) 2009 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 MP3_EXTRACTOR_H_ 18 19 #define MP3_EXTRACTOR_H_ 20 21 #include <utils/Errors.h> 22 #include <media/MediaExtractor.h> 23 #include <media/stagefright/MetaDataBase.h> 24 25 namespace android { 26 27 struct AMessage; 28 class DataSourceBase; 29 struct MP3Seeker; 30 class String8; 31 struct Mp3Meta; 32 33 class MP3Extractor : public MediaExtractor { 34 public: 35 MP3Extractor(DataSourceBase *source, Mp3Meta *meta); 36 ~MP3Extractor(); 37 38 virtual size_t countTracks(); 39 virtual MediaTrack *getTrack(size_t index); 40 virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags); 41 42 virtual status_t getMetaData(MetaDataBase& meta); name()43 virtual const char * name() { return "MP3Extractor"; } 44 45 private: 46 status_t mInitCheck; 47 48 DataSourceBase *mDataSource; 49 off64_t mFirstFramePos; 50 MetaDataBase mMeta; 51 uint32_t mFixedHeader; 52 MP3Seeker *mSeeker; 53 54 MP3Extractor(const MP3Extractor &); 55 MP3Extractor &operator=(const MP3Extractor &); 56 }; 57 58 } // namespace android 59 60 #endif // MP3_EXTRACTOR_H_ 61