private void PeekUpdateTimer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
try
{
synchronizationContext.Post(s =>
{
int PeekCount = Device.AudioMeterInformation.PeakValues.Count;
_Master.Peek = Device.AudioMeterInformation.MasterPeakValue;
for (int iPeek = 0; iPeek < PeekCount; ++iPeek)
{
_Channels[iPeek].Peek = Device.AudioMeterInformation.PeakValues[iPeek];
}
}
, null);
OnPropertyChanged("Master");
OnPropertyChanged("Channels");
}
catch (Exception ex)
{
Misc.LogStatics.Debug("{0}", ex);
_HasException = true;
}
finally
{
if (!_HasException)
{
PeekUpdateTimer.Start();
}
}
}
public AudioDeviceViewModel(NAudio.CoreAudioApi.MMDevice audioDevice)
{
synchronizationContext = SynchronizationContext.Current;
Device = audioDevice;
if (Device.State == NAudio.CoreAudioApi.DeviceState.Active && Device.DataFlow == NAudio.CoreAudioApi.DataFlow.Render)
{
float MaxDecibels = Device.AudioEndpointVolume.VolumeRange.MaxDecibels;
float MinDecibels = Device.AudioEndpointVolume.VolumeRange.MinDecibels;
Misc.LogStatics.Debug("Device:{0} MasterLevel={1} MasterScalar={2} MaxDecibels={3} MinDecibels={4}",
Device.FriendlyName,
Device.AudioEndpointVolume.MasterVolumeLevel,
Device.AudioEndpointVolume.MasterVolumeLevelScalar,
MaxDecibels,
MinDecibels);
try
{
int ChannelCount = Math.Max(Device.AudioEndpointVolume.Channels.Count, Device.AudioMeterInformation.PeakValues.Count);
_Master.Volume = Math.Round(Device.AudioEndpointVolume.MasterVolumeLevelScalar * 100.0);
_Master.Peek = Device.AudioMeterInformation.MasterPeakValue;
_Channels = new ChannelViewModel[ChannelCount];
for (int iChannel = 0; iChannel < ChannelCount; ++iChannel)
{
double ChVol = 0.0;
double ChPeek = 0.0;
if (iChannel < Device.AudioEndpointVolume.Channels.Count)
{
NAudio.CoreAudioApi.AudioEndpointVolumeChannel Channel = Device.AudioEndpointVolume.Channels[iChannel];
ChVol = Math.Round(Channel.VolumeLevelScalar * 100.0);
Misc.LogStatics.Debug("\tCH:{0} Level={1} Scalar={2}", iChannel, Channel.VolumeLevel, Channel.VolumeLevelScalar);
}
if (iChannel < Device.AudioEndpointVolume.Channels.Count)
{
ChPeek = Device.AudioMeterInformation.PeakValues[iChannel];
}
_Channels[iChannel] = new ChannelViewModel(ChVol, ChPeek);
}
}
catch (Exception ex)
{
Misc.LogStatics.Debug("{0}", ex);
}
try
{
Device.AudioEndpointVolume.OnVolumeNotification += AudioEndpointVolume_OnVolumeNotification;
PeekUpdateTimer.Elapsed += PeekUpdateTimer_Elapsed;
PeekUpdateTimer.Start();
}
catch (Exception ex)
{
Misc.LogStatics.Debug("{0}", ex);
}
}
}