/// <summary>
/// sets the volume when a value is passed by the GUIs trackbar
/// </summary>
/// <param name="percentage">the volume value passed</param>
public void SetVolume(int percentage)
{
int waveInDeviceNumber = 0;
var mixerLine = new NAudio.Mixer.MixerLine((IntPtr)waveInDeviceNumber,
0, NAudio.Mixer.MixerFlags.WaveIn);
foreach (var control in mixerLine.Controls)
{
if (control.ControlType == NAudio.Mixer.MixerControlType.Volume)
{
NAudio.Mixer.UnsignedMixerControl volumeControl = control as NAudio.Mixer.UnsignedMixerControl;
volumeControl.Percent = (double)percentage;
break;
}
}
}
/// <summary>
/// gets the volume level to show it on the trackbar
/// </summary>
/// <returns></returns>
public int GetVolume()
{
int waveInDeviceNumber = 0;
var mixerLine = new NAudio.Mixer.MixerLine((IntPtr)waveInDeviceNumber,
0, NAudio.Mixer.MixerFlags.WaveIn);
foreach (var control in mixerLine.Controls)
{
if (control.ControlType == NAudio.Mixer.MixerControlType.Volume)
{
NAudio.Mixer.UnsignedMixerControl volumeControl = control as NAudio.Mixer.UnsignedMixerControl;
return((int)volumeControl.Percent);
}
}
return(-1);
}
// ctor, constructor
/// <exception cref="InitFailure">When initialization fails in a way that can not be continued from.</exception>
public MicManager()
{
System.Diagnostics.Debug.Assert(Taskmaster.IsMainThread(), "Requires main thread");
// Target = Maximum; // superfluous; CLEANUP
var stats = Taskmaster.Config.Load(statfile);
// there should be easier way for this, right?
Corrections = (stats.Config.Contains("Statistics") && stats.Config["Statistics"].Contains("Corrections")) ? stats.Config["Statistics"]["Corrections"].IntValue : 0;
// DEVICES
// find control interface
// FIXME: Deal with multiple recording devices.
var waveInDeviceNumber = IntPtr.Zero; // 0 is default or first?
NAudio.Mixer.MixerLine mixerLine = null;
try
{
mixerLine = new NAudio.Mixer.MixerLine(waveInDeviceNumber, 0, NAudio.Mixer.MixerFlags.WaveIn);
}
catch (NAudio.MmException ex)
{
Log.Fatal("<Microphone> Default device not found.");
throw new InitFailure("Failed to get default microphone device.", ex);
}
Control = (NAudio.Mixer.UnsignedMixerControl)mixerLine.Controls.FirstOrDefault(
(control) => control.ControlType == NAudio.Mixer.MixerControlType.Volume
);
if (Control == null)
{
Log.Error("<Microphone> No volume control acquired!");
throw new InitFailure("Mic monitor control not acquired.");
}
_volume = Control.Percent;
// get default communications device
var mm_enum = new NAudio.CoreAudioApi.MMDeviceEnumerator();
m_dev = mm_enum?.GetDefaultAudioEndpoint(NAudio.CoreAudioApi.DataFlow.Capture, NAudio.CoreAudioApi.Role.Communications);
if (m_dev != null)
{
m_dev.AudioEndpointVolume.OnVolumeNotification += VolumeChangedHandler;
}
mm_enum = null; // unnecessary?
if (m_dev == null)
{
Log.Error("<Microphone> No communications device found!");
throw new InitFailure("No communications device found");
}
var mvol = "Microphone volume";
var corecfg = Taskmaster.Config.Load(Taskmaster.coreconfig);
var save = false || !corecfg.Config["Media"].Contains(mvol);
var defaultvol = corecfg.Config["Media"].GetSetDefault(mvol, 100d).DoubleValue;
if (save)
{
corecfg.MarkDirty();
}
var fname = "Microphone.Devices.ini";
var vname = "Volume";
var devcfg = Taskmaster.Config.Load(fname);
var guid = (m_dev.ID.Split('}'))[1].Substring(2);
var devname = m_dev.DeviceFriendlyName;
var unset = !(devcfg.Config[guid].Contains(vname));
var devvol = devcfg.Config[guid].GetSetDefault(vname, defaultvol).DoubleValue;
devcfg.Config[guid]["Name"].StringValue = devname;
if (unset)
{
devcfg.Save();
}
Target = devvol.Constrain(0, 100);
Log.Information("<Microphone> Default device: {Device} (volume: {TargetVolume:N1}%)", m_dev.FriendlyName, Target);
Volume = Target;
Log.Information("<Microphone> Component loaded.");
}
