self.output. Every operation reaches each
connected client, including clients that connect later.
float
Read or assign the playout rate. Assigning re-paces frames that are already queued, so a command
can change the rate at once.
None
Drop what is queued and cut playout. Call it when the scene changes, so nothing from the old
scene plays after the cut. A recording keeps running across the cut.
None
Put an
Output on the tracks. The default loop does this for you; call it yourself only from a
hand-written run().