internal static void PopulateCaptureDevices()
{
// clear microphones
if (_allMicrophones != null)
{
_allMicrophones.Clear();
}
else
{
_allMicrophones = new List <Microphone>();
}
_default = null;
// default device
string defaultDevice = Alc.GetString(IntPtr.Zero, AlcGetString.CaptureDefaultDeviceSpecifier);
#if true //DESKTOPGL
// enumarating capture devices
IntPtr deviceList = Alc.alGetString(IntPtr.Zero, (int)AlcGetString.CaptureDeviceSpecifier);
// we need to marshal a string array
string deviceIdentifier = Marshal.PtrToStringAnsi(deviceList);
while (!String.IsNullOrEmpty(deviceIdentifier))
{
Microphone microphone = new Microphone(deviceIdentifier);
_allMicrophones.Add(microphone);
if (deviceIdentifier == defaultDevice)
{
_default = microphone;
}
deviceList += deviceIdentifier.Length + 1;
deviceIdentifier = Marshal.PtrToStringAnsi(deviceList);
}
#else
// Xamarin platforms don't provide an handle to alGetString that allow to marshal string arrays
// so we're basically only adding the default microphone
Microphone microphone = new Microphone(defaultDevice);
_allMicrophones.Add(microphone);
_default = microphone;
#endif
}