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/MediaExtractorPluginApi.h> 22 #include <media/MediaExtractorPluginHelper.h> 23 #include <media/NdkMediaFormat.h> 24 25 #include <utils/Vector.h> 26 27 namespace android { 28 29 struct AMessage; 30 class String8; 31 32 class AACExtractor : public MediaExtractorPluginHelper { 33 public: 34 AACExtractor(DataSourceHelper *source, off64_t offset); 35 36 virtual size_t countTracks(); 37 virtual MediaTrackHelper *getTrack(size_t index); 38 virtual media_status_t getTrackMetaData(AMediaFormat *meta, size_t index, uint32_t flags); 39 40 virtual media_status_t getMetaData(AMediaFormat *meta); 41 virtual const char * name() { return "AACExtractor"; } 42 43 protected: 44 virtual ~AACExtractor(); 45 46 private: 47 DataSourceHelper *mDataSource; 48 AMediaFormat *mMeta; 49 status_t mInitCheck; 50 51 Vector<uint64_t> mOffsetVector; 52 int64_t mFrameDurationUs; 53 54 AACExtractor(const AACExtractor &); 55 AACExtractor &operator=(const AACExtractor &); 56 }; 57 58 bool SniffAAC( 59 DataSourceHelper *source, String8 *mimeType, float *confidence, off64_t *offset); 60 61 } // namespace android 62 63 #endif // AAC_EXTRACTOR_H_ 64
