85     virtual Status SetSource(std::shared_ptr<MediaSource> source) = 0;
99     virtual Status Read(std::shared_ptr<Buffer>& buffer, uint64_t offset, size_t expectedLen) = 0;
114 …virtual Status Read(int32_t streamId, std::shared_ptr<Buffer>& buffer, uint64_t offset, size_t exp…  in Read()
116         return Status::OK;  in Read()
128     virtual Status GetSize(uint64_t& size) = 0;
152     virtual Status SeekTo(uint64_t offset) = 0;
154     virtual Status Reset() = 0;
162     virtual Status GetDownloadInfo(DownloadInfo& downloadInfo)  in GetDownloadInfo()
164         return Status::OK;  in GetDownloadInfo()
167     virtual Status GetPlaybackInfo(PlaybackInfo& playbackInfo)  in GetPlaybackInfo()
169         return Status::OK;  in GetPlaybackInfo()
172     virtual Status GetBitRates(std::vector<uint32_t>& bitRates)  in GetBitRates()
174         return Status::OK;  in GetBitRates()
177     virtual Status SelectBitRate(uint32_t bitRate)  in SelectBitRate()
179         return Status::OK;  in SelectBitRate()
187     virtual Status SeekToTime(int64_t seekTime, SeekMode mode)  in SeekToTime()
189         return Status::OK;  in SeekToTime()
192     virtual Status GetDuration(int64_t& duration)  in GetDuration()
195         return Status::OK;  in GetDuration()
203     virtual Status SetReadBlockingFlag(bool isReadBlockingAllowed)  in SetReadBlockingFlag()
205         return Status::OK;  in SetReadBlockingFlag()
210     virtual Status SetCurrentBitRate(int32_t bitRate, int32_t streamID)  in SetCurrentBitRate()
212         return Status::OK;  in SetCurrentBitRate()
215     virtual Status GetStreamInfo(std::vector<StreamInfo>& streams)  in GetStreamInfo()
217         return Status::OK;  in GetStreamInfo()
220     virtual Status Pause()  in Pause()
222         return Status::OK;  in Pause()
225     virtual Status Resume()  in Resume()
227         return Status::OK;  in Resume()
229     virtual Status SelectStream(int32_t streamID)  in SelectStream()
231         return Status::OK;  in SelectStream()