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/stagefright/DataSource.h> 21 #include <media/stagefright/MediaExtractor.h> 22 #include <utils/String8.h> 23 24 namespace android { 25 26 class FLACParser; 27 28 class FLACExtractor : public MediaExtractor { 29 30 public: 31 // Extractor assumes ownership of source 32 FLACExtractor(const sp<DataSource> &source); 33 34 virtual size_t countTracks(); 35 virtual sp<MediaSource> getTrack(size_t index); 36 virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); 37 38 virtual sp<MetaData> getMetaData(); 39 40 protected: 41 virtual ~FLACExtractor(); 42 43 private: 44 sp<DataSource> mDataSource; 45 sp<FLACParser> mParser; 46 status_t mInitCheck; 47 sp<MetaData> mFileMetadata; 48 49 // There is only one track 50 sp<MetaData> mTrackMetadata; 51 52 status_t init(); 53 54 FLACExtractor(const FLACExtractor &); 55 FLACExtractor &operator=(const FLACExtractor &); 56 57 }; 58 59 bool SniffFLAC(const sp<DataSource> &source, String8 *mimeType, 60 float *confidence, sp<AMessage> *); 61 62 } // namespace android 63 64 #endif // FLAC_EXTRACTOR_H_ 65
