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Diffstat (limited to 'media/libstagefright/include/MPEG4Extractor.h')
-rw-r--r-- | media/libstagefright/include/MPEG4Extractor.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/media/libstagefright/include/MPEG4Extractor.h b/media/libstagefright/include/MPEG4Extractor.h new file mode 100644 index 0000000..ce4736d --- /dev/null +++ b/media/libstagefright/include/MPEG4Extractor.h @@ -0,0 +1,69 @@ +/* + * 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_ |