description, seek=true, handles-states=true, needs_preroll=true pause, playback-time=0.0 seek, playback-time=0.0, start="duration - 0.5", flags=accurate+flush seek, playback-time=0.0, start=position-0.1, repeat="(duration - 0.6)/0.1", flags=accurate+flush play, playback-time=0.0 stop, playback-time=1.0