Instance Property

timeRange

The time range during which the instruction is effective.

Declaration

@property(nonatomic, readonly) CMTimeRange timeRange;

Discussion

If the time range is invalid, the video compositor will ignore it. See also the requirements of the timeRange property in the array of objects implementing the AVVideoCompositionInstruction protocol as described in the AVVideoComposition class’s instructions property.

See Also

Getting Composition Instruction Properties

backgroundColor

The background color of the composition.

layerInstructions

An array of video composition layer instruction instances of that specify how video frames from source tracks should be layered and composed.

enablePostProcessing

A Boolean value that indicates whether post processing is required for the video composition instruction.

passthroughTrackID

The track identifier from an instruction source frame.

requiredSourceTrackIDs

An array of track identifiers required to compose frames for the instruction.