absentInputAudioBehavior property
When set to drop, output audio streams will be removed from the program if the selected input audio stream is removed from the input. This allows the output audio configuration to dynamically change based on input configuration. If this is set to encodeSilence, all output audio streams will output encoded silence when not connected to an active input stream.
Implementation
final M2tsAbsentInputAudioBehavior? absentInputAudioBehavior;