OptionalSubTrackType# class pybmd.timeline.OptionalSubTrackType(value, names=<not given>, *values, module=None, qualname=None, type=None, start=1, boundary=None)[source] Bases: Enum OptionalSubTrackType is required for TrackType is AUDIO_TRACK Attributes MONO STEREO FP1 FP1_FILM SP1 SP1_FILM ADAPTIVE_1 ADAPTIVE_2 ADAPTIVE_3 ADAPTIVE_4 ADAPTIVE_5 ADAPTIVE_6 ADAPTIVE_7 ADAPTIVE_8 ADAPTIVE_9 ADAPTIVE_10 ADAPTIVE_11 ADAPTIVE_12 ADAPTIVE_13 ADAPTIVE_14 ADAPTIVE_15 ADAPTIVE_16 ADAPTIVE_17 ADAPTIVE_18 ADAPTIVE_19 ADAPTIVE_20 ADAPTIVE_21 ADAPTIVE_22 ADAPTIVE_23 ADAPTIVE_24