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 FLAC_EXTRACTOR_H_ 18#define FLAC_EXTRACTOR_H_ 19 20#include <media/DataSourceBase.h> 21#include <media/MediaExtractor.h> 22#include <media/stagefright/MetaDataBase.h> 23#include <utils/String8.h> 24 25namespace android { 26 27class FLACParser; 28 29class FLACExtractor : public MediaExtractor { 30 31public: 32 explicit FLACExtractor(DataSourceBase *source); 33 34 virtual size_t countTracks(); 35 virtual MediaTrack *getTrack(size_t index); 36 virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags); 37 38 virtual status_t getMetaData(MetaDataBase& meta); 39 virtual const char * name() { return "FLACExtractor"; } 40 41protected: 42 virtual ~FLACExtractor(); 43 44private: 45 DataSourceBase *mDataSource; 46 FLACParser *mParser; 47 status_t mInitCheck; 48 MetaDataBase mFileMetadata; 49 50 // There is only one track 51 MetaDataBase mTrackMetadata; 52 53 FLACExtractor(const FLACExtractor &); 54 FLACExtractor &operator=(const FLACExtractor &); 55 56}; 57 58bool SniffFLAC(DataSourceBase *source, float *confidence); 59 60} // namespace android 61 62#endif // FLAC_EXTRACTOR_H_ 63