track
fun track(content: TrackContent = TrackContent.AudioAndVideo, block: TrackBuilder.() -> Unit): CompositionBuilder(source)
Adds a track that plays alongside the primary one, configured by block.
An audio-only track is mixed with the other tracks' audio. A track that carries video is refused at plan time unless it is the primary one.
Parameters
content
Which media streams this track contributes. A music bed is TrackContent.Audio.