Interface CreateCompositionRequest

If true, outputs will immediately start producing audio and video. If false, call POST /api/composition/{composition_id}/start to start the composition.

If true (default), the composition will be cleaned up after 5 minutes when all inputs have zero bitrate, regardless of output bitrate. This prevents circular liveness when composition output is sent to a stream. If false, cleanup only triggers when both inputs and outputs have zero bitrate.