internal AudioDevice(IntPtr pointer)
{
_pointer = pointer;
if (pointer != IntPtr.Zero)
{
_struct =
(Interop.MediaPlayer.AudioDevice)
Marshal.PtrToStructure(pointer, typeof(Interop.MediaPlayer.AudioDevice));
Device = InteropHelper.PtrToString(_struct.Device);
Description = InteropHelper.PtrToString(_struct.Description);
}
}
/// <summary>
/// Configures an explicit audio output device. If the module paramater is NULL,
/// audio output will be moved to the device specified by the device identifier string immediately.
/// This is the recommended usage. A list of adequate potential device strings can be obtained with
/// <see cref="EnumAudioDeviceList" />.
/// However passing NULL is supported in LibVLC version 2.2.0 and later only; in earlier versions, this function would
/// have no effects when the module parameter was NULL.
/// If the module parameter is not NULL, the device parameter of the corresponding audio output, if it exists, will be
/// set to the specified string.
/// Note that some audio output modules do not have such a parameter (notably MMDevice and PulseAudio).
/// A list of adequate potential device strings can be obtained with <see cref="GetAudioDeviceList" />.
/// </summary>
public void SetAudioDevice(AudioOutput audioOutput, AudioDevice audioDevice)
{
var outputHandle = audioOutput == null ? null : new GCHandle?(InteropHelper.StringToPtr(audioOutput.Name));
var deviceHandle = InteropHelper.StringToPtr(audioDevice.Device);
_setAudioDeviceFunction.Delegate(InstancePointer,
outputHandle == null ? IntPtr.Zero : outputHandle.Value.AddrOfPinnedObject(),
deviceHandle.AddrOfPinnedObject());
if (outputHandle.HasValue)
{
outputHandle.Value.Free();
}
deviceHandle.Free();
}