Instance Property

metadata

The collection of track-level metadata to associate with the asset and for carriage in the output file.

Declaration

@property(nonatomic, copy) NSArray<AVMetadataItem *> *metadata;

Discussion

The array contains AVMetadataItem objects representing the collection of track-level metadata for writing to the output file.

You cannot set this property after writing has started.

See Also

Configuring a Writer Input

transform

The transform specified in the output file as the preferred transformation of the visual media data for display purposes.

mediaTimeScale

Specifies the media time scale to be used.

expectsMediaDataInRealTime

A Boolean value that indicates whether the input should tailor its processing of media data for real-time sources.

marksOutputTrackAsEnabled

Returns whether the receiver’s track is enabled.

naturalSize

Size specified in the output file as the natural dimensions of the visual media data for display.

preferredVolume

The preferred volume level for storing in the output file.