1 /* 2 * Copyright (C) 2011 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 AAC_EXTRACTOR_H_ 18 19 #define AAC_EXTRACTOR_H_ 20 21 #include <media/MediaExtractor.h> 22 #include <media/stagefright/MetaDataBase.h> 23 24 #include <utils/Vector.h> 25 26 namespace android { 27 28 struct AMessage; 29 class String8; 30 31 class AACExtractor : public MediaExtractor { 32 public: 33 AACExtractor(DataSourceBase *source, off64_t offset); 34 35 virtual size_t countTracks(); 36 virtual MediaTrack *getTrack(size_t index); 37 virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags); 38 39 virtual status_t getMetaData(MetaDataBase& meta); 40 virtual const char * name() { return "AACExtractor"; } 41 42 protected: 43 virtual ~AACExtractor(); 44 45 private: 46 DataSourceBase *mDataSource; 47 MetaDataBase mMeta; 48 status_t mInitCheck; 49 50 Vector<uint64_t> mOffsetVector; 51 int64_t mFrameDurationUs; 52 53 AACExtractor(const AACExtractor &); 54 AACExtractor &operator=(const AACExtractor &); 55 }; 56 57 bool SniffAAC( 58 DataSourceBase *source, String8 *mimeType, float *confidence, off64_t *offset); 59 60 } // namespace android 61 62 #endif // AAC_EXTRACTOR_H_ 63
