addNullAudio method
Adds a virtual audio input asset, which can be used to fill audio when no other audio source is available.
Implementation
FfmpegStream addNullAudio() {
final input = FfmpegInput.virtualDevice('anullsrc=sample_rate=48000');
final stream = _inputs.putIfAbsent(
input,
() => FfmpegStream(
videoId: null,
audioId: '[${_inputs.length}]',
));
return stream;
}