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Use event callback to get audio endpoint volume

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This commit is contained in:
Travis Nickles 2017-12-10 02:05:56 -06:00
parent bc3b042bcf
commit 132d411b24
1 changed files with 18 additions and 8 deletions
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26
DS4Windows/DS4Library/DS4Audio.cs
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@ -4,7 +4,7 @@ using DS4Windows.DS4Library.CoreAudio;
namespace DS4Windows.DS4Library
{
public class DS4Audio
public class DS4Audio : IAudioEndpointVolumeCallback
{
private IAudioEndpointVolume endpointVolume;
@ -12,27 +12,32 @@ namespace DS4Windows.DS4Library
private static readonly PropertyKey PKEY_Device_FriendlyName =
new PropertyKey(new Guid(unchecked((int)0xa45c254e), unchecked((short)0xdf1c), 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0), 14);
public uint vol;
public uint Volume
{
get
{
float pfLevel = 0;
if (endpointVolume != null)
endpointVolume.GetMasterVolumeLevelScalar(out pfLevel);
return Convert.ToUInt32(pfLevel * 100);
return vol;
}
}
public uint getVolume()
{
return vol;
}
public void RefreshVolume()
{
float pfLevel = 0;
if (endpointVolume != null)
endpointVolume.GetMasterVolumeLevelScalar(out pfLevel);
vol = Convert.ToUInt32(pfLevel * 100);
}
return Convert.ToUInt32(pfLevel * 100);
public void OnNotify(IntPtr pNotify)
{
RefreshVolume();
}
public DS4Audio(DataFlow audioFlags = DataFlow.Render)
@ -55,20 +60,24 @@ namespace DS4Windows.DS4Library
object interfacePointer;
Marshal.ThrowExceptionForHR(audioDevice.Activate(ref IID_IAudioEndpointVolume, ClsCtx.ALL, IntPtr.Zero, out interfacePointer));
endpointVolume = interfacePointer as IAudioEndpointVolume;
endpointVolume.RegisterControlChangeNotify(this);
}
else if (deviceName.Contains("Headset Earphone (Wireless Controller)"))
{
object interfacePointer;
Marshal.ThrowExceptionForHR(audioDevice.Activate(ref IID_IAudioEndpointVolume, ClsCtx.ALL, IntPtr.Zero, out interfacePointer));
endpointVolume = interfacePointer as IAudioEndpointVolume;
endpointVolume.RegisterControlChangeNotify(this);
}
else if (deviceName.Contains("Headset Microphone (Wireless Controller)"))
{
object interfacePointer;
Marshal.ThrowExceptionForHR(audioDevice.Activate(ref IID_IAudioEndpointVolume, ClsCtx.ALL, IntPtr.Zero, out interfacePointer));
endpointVolume = interfacePointer as IAudioEndpointVolume;
endpointVolume.RegisterControlChangeNotify(this);
}
RefreshVolume();
Marshal.ReleaseComObject(audioDevice);
}
@ -80,6 +89,7 @@ namespace DS4Windows.DS4Library
{
if (endpointVolume != null)
{
endpointVolume.UnregisterControlChangeNotify(this);
Marshal.ReleaseComObject(endpointVolume);
endpointVolume = null;
}