public void Callbacks()
{
var audioComponent = AudioComponent.FindComponent(AudioTypeOutput.VoiceProcessingIO);
using var audioUnit = new global::AudioUnit.AudioUnit(audioComponent);
var rv = audioUnit.SetInputCallback(InputCallback, AudioUnitScopeType.Input, 1);
if (rv == AudioUnitStatus.CannotDoInCurrentContext)
{
Assert.Ignore("Can't set input callback"); // No microphone? In a VM? This seems to happen often on bots.
}
Assert.AreEqual(AudioUnitStatus.OK, rv, "SetInputCallback");
Assert.AreEqual(AudioUnitStatus.OK, audioUnit.Initialize(), "Initialize");
try {
Assert.AreEqual(AudioUnitStatus.OK, audioUnit.Start(), "Start");
Assert.IsTrue(inputCallbackEvent.WaitOne(TimeSpan.FromSeconds(1)), "No input callback for 1 second");
} finally {
Assert.AreEqual(AudioUnitStatus.OK, audioUnit.Stop(), "Stop");
}
}
AudioUnitStatus InputCallback(AudioUnitRenderActionFlags actionFlags, AudioTimeStamp timeStamp, uint busNumber, uint numberFrames, global::AudioUnit.AudioUnit audioUnit)
{
inputCallbackEvent.Set();
return(AudioUnitStatus.NoError);
}
