internal static void PopulateCaptureDevices()
{
// clear microphones
_allMicrophones.Clear();
Default = null;
// default device
string defaultDevice = ALC.GetString(IntPtr.Zero, ALCGetString.CaptureDefaultDeviceSpecifier);
#if WINDOWS || DESKTOPGL
// enumarating capture devices
IntPtr deviceList = ALC.alcGetString(IntPtr.Zero, (int)ALCGetString.CaptureDeviceSpecifier);
// we need to marshal a string array
string?deviceIdentifier = Marshal.PtrToStringAnsi(deviceList);
while (!string.IsNullOrEmpty(deviceIdentifier))
{
var 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 a 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
}
