| /* |
| * Copyright 2012, 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 NU_MEDIA_EXTRACTOR_H_ |
| #define NU_MEDIA_EXTRACTOR_H_ |
| |
| #include <list> |
| #include <media/mediaplayer.h> |
| #include <media/stagefright/foundation/ABase.h> |
| #include <media/stagefright/foundation/AudioPresentationInfo.h> |
| #include <android/IMediaExtractor.h> |
| #include <media/stagefright/MediaSource.h> |
| #include <utils/Errors.h> |
| #include <utils/KeyedVector.h> |
| #include <utils/RefBase.h> |
| #include <utils/String8.h> |
| #include <utils/threads.h> |
| #include <utils/Vector.h> |
| |
| namespace android { |
| |
| struct ABuffer; |
| struct AMessage; |
| class DataSource; |
| struct MediaHTTPService; |
| class MediaBuffer; |
| class MediaExtractor; |
| struct MediaSource; |
| class MetaData; |
| |
| struct NuMediaExtractor : public RefBase { |
| enum SampleFlags { |
| SAMPLE_FLAG_SYNC = 1, |
| SAMPLE_FLAG_ENCRYPTED = 2, |
| }; |
| |
| typedef IMediaExtractor::EntryPoint EntryPoint; |
| |
| // identical to IMediaExtractor::GetTrackMetaDataFlags |
| enum GetTrackFormatFlags { |
| kIncludeExtensiveMetaData = 1, // reads sample table and possibly stream headers |
| }; |
| |
| explicit NuMediaExtractor(EntryPoint entryPoint); |
| |
| status_t setDataSource( |
| const sp<MediaHTTPService> &httpService, |
| const char *path, |
| const KeyedVector<String8, String8> *headers = NULL); |
| |
| status_t setDataSource(int fd, off64_t offset, off64_t size); |
| |
| status_t setDataSource(const sp<DataSource> &datasource); |
| |
| status_t setMediaCas(const HInterfaceToken &casToken); |
| |
| size_t countTracks() const; |
| status_t getTrackFormat(size_t index, sp<AMessage> *format, uint32_t flags = 0) const; |
| |
| status_t getFileFormat(sp<AMessage> *format) const; |
| |
| status_t getExifOffsetSize(off64_t *offset, size_t *size) const; |
| |
| status_t selectTrack(size_t index, int64_t startTimeUs = -1ll, |
| MediaSource::ReadOptions::SeekMode mode = |
| MediaSource::ReadOptions::SEEK_CLOSEST_SYNC); |
| status_t unselectTrack(size_t index); |
| |
| status_t seekTo( |
| int64_t timeUs, |
| MediaSource::ReadOptions::SeekMode mode = |
| MediaSource::ReadOptions::SEEK_CLOSEST_SYNC); |
| |
| // Each selected track has a read pointer. |
| // advance() advances the read pointer with the lowest timestamp. |
| status_t advance(); |
| // readSampleData() reads the sample with the lowest timestamp. |
| status_t readSampleData(const sp<ABuffer> &buffer); |
| |
| status_t getSampleSize(size_t *sampleSize); |
| status_t getSampleTrackIndex(size_t *trackIndex); |
| status_t getSampleTime(int64_t *sampleTimeUs); |
| status_t getSampleMeta(sp<MetaData> *sampleMeta); |
| status_t getMetrics(Parcel *reply); |
| |
| bool getCachedDuration(int64_t *durationUs, bool *eos) const; |
| |
| status_t getAudioPresentations(size_t trackIdx, AudioPresentationCollection *presentations); |
| |
| status_t setLogSessionId(const String8& logSessionId); |
| |
| const char* getName() const; |
| |
| protected: |
| virtual ~NuMediaExtractor(); |
| |
| private: |
| enum TrackFlags { |
| kIsVorbis = 1, |
| }; |
| |
| enum { |
| kMaxTrackCount = 16384, |
| }; |
| |
| struct Sample { |
| Sample(); |
| Sample(MediaBufferBase *buffer, int64_t timeUs); |
| MediaBufferBase *mBuffer; |
| int64_t mSampleTimeUs; |
| }; |
| |
| struct TrackInfo { |
| sp<IMediaSource> mSource; |
| size_t mTrackIndex; |
| media_track_type mTrackType; |
| size_t mMaxFetchCount; |
| status_t mFinalResult; |
| std::list<Sample> mSamples; |
| |
| uint32_t mTrackFlags; // bitmask of "TrackFlags" |
| }; |
| |
| const EntryPoint mEntryPoint; |
| |
| mutable Mutex mLock; |
| |
| sp<DataSource> mDataSource; |
| |
| sp<IMediaExtractor> mImpl; |
| HInterfaceToken mCasToken; |
| |
| Vector<TrackInfo> mSelectedTracks; |
| int64_t mTotalBitrate; // in bits/sec |
| int64_t mDurationUs; |
| String8 mName; |
| |
| void setEntryPointToRemoteMediaExtractor(); |
| |
| ssize_t fetchAllTrackSamples( |
| int64_t seekTimeUs = -1ll, |
| MediaSource::ReadOptions::SeekMode mode = |
| MediaSource::ReadOptions::SEEK_CLOSEST_SYNC); |
| void fetchTrackSamples( |
| TrackInfo *info, |
| int64_t seekTimeUs = -1ll, |
| MediaSource::ReadOptions::SeekMode mode = |
| MediaSource::ReadOptions::SEEK_CLOSEST_SYNC); |
| |
| void releaseTrackSamples(TrackInfo *info); |
| void releaseAllTrackSamples(); |
| |
| bool getTotalBitrate(int64_t *bitRate) const; |
| status_t updateDurationAndBitrate(); |
| status_t appendVorbisNumPageSamples(MediaBufferBase *mbuf, const sp<ABuffer> &buffer); |
| status_t initMediaExtractor(const sp<DataSource>& dataSource); |
| |
| DISALLOW_EVIL_CONSTRUCTORS(NuMediaExtractor); |
| }; |
| |
| } // namespace android |
| |
| #endif // NU_MEDIA_EXTRACTOR_H_ |
| |