| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef MPEG4_EXTRACTOR_H_ |
| |
| #define MPEG4_EXTRACTOR_H_ |
| |
| #include <media/stagefright/MediaExtractor.h> |
| |
| namespace android { |
| |
| class DataSource; |
| class SampleTable; |
| class String8; |
| |
| class MPEG4Extractor : public MediaExtractor { |
| public: |
| // Extractor assumes ownership of "source". |
| MPEG4Extractor(const sp<DataSource> &source); |
| |
| size_t countTracks(); |
| sp<MediaSource> getTrack(size_t index); |
| sp<MetaData> getTrackMetaData(size_t index, uint32_t flags); |
| |
| protected: |
| virtual ~MPEG4Extractor(); |
| |
| private: |
| struct Track { |
| Track *next; |
| sp<MetaData> meta; |
| uint32_t timescale; |
| sp<SampleTable> sampleTable; |
| bool includes_expensive_metadata; |
| }; |
| |
| sp<DataSource> mDataSource; |
| bool mHaveMetadata; |
| |
| Track *mFirstTrack, *mLastTrack; |
| |
| uint32_t mHandlerType; |
| |
| status_t readMetaData(); |
| status_t parseChunk(off_t *offset, int depth); |
| |
| MPEG4Extractor(const MPEG4Extractor &); |
| MPEG4Extractor &operator=(const MPEG4Extractor &); |
| }; |
| |
| bool SniffMPEG4( |
| const sp<DataSource> &source, String8 *mimeType, float *confidence); |
| |
| } // namespace android |
| |
| #endif // MPEG4_EXTRACTOR_H_ |