/// <summary>
/// A constructor that creates an Audio resource. No sound will be heard
/// until StartPlayback() is called. The Action<byte[], uint, double, object>
/// is called with the byte[] buffer and user data whenever the buffer needs to be filled.
/// From within the delegate, you should not call <code>Audio</code>
/// functions. The action delegate will be called on a different thread than the one
/// which created the interface. For performance-critical applications (such
/// as low-latency audio), the action delegate should avoid blocking or calling
/// functions that can obtain locks, such as memory allocates. The layout and the size
/// of the buffer passed to the audio callback will be determined by
/// the device configuration and is specified in the <code>AudioConfig</code>
/// documentation.
/// </summary>
/// <param name="instance"></param>
/// <param name="config"></param>
/// <param name="callbackAction"></param>
/// <param name="userData"></param>
public Audio(Instance instance,
AudioConfig config,
Action <byte[], uint, double, object> callbackAction,
object userData = null)
{
this.config = config;
callbackDelegate = callbackAction;
meBePinned = (IntPtr)(GCHandle.Alloc(this, GCHandleType.Normal));
if (userData != null)
{
userDataHandle = (IntPtr)(GCHandle.Alloc(userData, GCHandleType.Normal));
}
handle = PPBAudio.Create(instance, config, audioCallback, meBePinned);
}
/// <summary> /// StopPlayback stops playback of audio. /// </summary> /// <returns>true if successful, otherwise false.</returns> public bool StopPlayback() => PPBAudio.StopPlayback(this) == PPBool.True;
