Instance Property

sourceTrackIDs

The track IDs of all the source buffers that are available to compose the frame.

Declaration

@property(nonatomic, readonly) NSArray<NSNumber *> *sourceTrackIDs;

See Also

Getting the Composition Request Settings

compositionTime

The time for which the frame should be composed.

renderContext

The video composition render context making the request.

videoCompositionInstruction

The video composition instruction to use to compose the frame.