/// <inheritdoc/>
public void OnDefaultDeviceChanged(DataFlow flow, Role role, string defaultDeviceId)
{
if (flow == CaptureDeviceDataFlow && role == CaptureDeviceRole)
{
UpdateDefaultDevice();
DefaultPlaybackDeviceChanged?.Invoke(this, EventArgs.Empty);
}
}
private void DeviceManager_DefaultPlaybackDeviceChanged(object sender, IAudioDevice e)
{
if (e == null)
{
DefaultPlaybackDevice = null;
DefaultPlaybackDeviceChanged?.Invoke(this, DefaultPlaybackDevice);
}
else
{
var dev = AllDevices.FirstOrDefault(d => d.Id == e.Id);
if (dev != null)
{
DefaultPlaybackDevice = dev;
DefaultPlaybackDeviceChanged?.Invoke(this, DefaultPlaybackDevice);
}
}
}
private void QueryDefaultPlaybackDevice()
{
Trace.WriteLine("AudioDeviceManager QueryDefaultPlaybackDevice");
IMMDevice device = null;
try
{
device = _enumerator.GetDefaultAudioEndpoint(EDataFlow.eRender, ERole.eMultimedia);
}
catch (Exception ex) when(ex.Is(Error.ERROR_NOT_FOUND))
{
// Expected.
}
string newDeviceId = device?.GetId();
var currentDeviceId = _defaultPlaybackDevice?.Id;
if (currentDeviceId != newDeviceId)
{
FindDevice(newDeviceId, out _defaultPlaybackDevice);
DefaultPlaybackDeviceChanged?.Invoke(this, _defaultPlaybackDevice);
}
}
