develop/media/MediaExtractorAddOn.h

230   // The extractor will seek first on the seek track, just like
238   // This may be more efficient than seeking the seek track through
256   // The extractor will seek first on the seek track, just like
264   // This may be more efficient than seeking the seek track through
283   // The extractor will seek first on the seek track.  It goes to
295   // This may be more efficient than seeking the seek track through
312   // The extractor will seek first on the seek track.  It goes to a
330   // This may be more efficient than seeking the seek track through
377   // SeekTrackToFrame(BTrack * track, int64 ioFrame, int32 flags = 0) {
382   // Also, any track extracted using this function will be seeked by
383   // the extractor seek functions.  Any track not extracted by this
385   // supplied as SEEK_CUR the track will be seeked before being
387   // one track it may be more efficient than retrieving the track and
389   // seek time for the track will be no later than the earliest
391   // for the track will be no earlier than the earliest seekable time.
396   // performed on the track.  The current seek time may be arbitrary
397   // or even illegal.  Attempting to decode data from the track in
404   //               track in this stream.
410   // Disclaims interest in a particular track.  After releasing a
411   // track the track will no longer be seeked by the extractor.
415   // B_BAD_TYPE  : This track does not correspond to this extractor.
418   status_t ReleaseTrack(BTrack * track);
421   // use to negotiate the format for this track
423   virtual status_t NegotiateOutputFormat(BTrack * track,
426   // get/set information about a particular track
427   virtual status_t GetParameterValue(BTrack * track, int32 id,
429   virtual status_t SetParameterValue(BTrack * track, int32 id,
431   virtual BParameterWeb * Web(BTrack * track) { return NULL; }
432   virtual BView * GetParameterView(BTrack * track) { return NULL; }
434   // seek only this particular track to the given time
436   virtual status_t SeekToTime(BTrack * track,
440   // seek only this particular track to the given frame
442   virtual status_t SeekToFrame(BTrack * track,
446   // seek only this particular track to the given chunk
448   virtual status_t SeekToChunk(BTrack * track,
452   // seek only this particular track to the given chunk
454   virtual status_t Seek(BTrack * track,
459   // read a chunk from this track only
461   virtual status_t ReadChunk(BTrack * track,
464   // read frames from this track only
466   virtual status_t ReadFrames(BTrack * track,
471   // read units of time from this track only
472   virtual status_t ReadTime(BTrack * track,
477   // read a percentage from this track only
478   virtual status_t Read(BTrack * track,
488     // use to negotiate the format for this track
493     // access to parameters for this track
509     // access to seek functionality on this track
531     // access to readers for this track