private void BeginPlaybackInternal <TInput>(BufferNeededCallback <TInput> callback) where TInput : unmanaged
{
if (callback == null)
{
throw new ArgumentNullException(nameof(callback));
}
if (this.disposed)
{
throw new ObjectDisposedException(nameof(AudioPlayer));
}
if (this.Playing)
{
throw new InvalidOperationException("Playback has already started.");
}
this.callbackRaiser = this.Format.SampleFormat switch
{
SampleFormat.UnsignedPcm8 => new CallbackRaiser <TInput, byte>(callback),
SampleFormat.SignedPcm16 => new CallbackRaiser <TInput, short>(callback),
SampleFormat.IeeeFloat32 => new CallbackRaiser <TInput, float>(callback),
_ => throw new ArgumentException("Sample format is not support.")
};
this.Playing = true;
this.Start(true);
}
/// <summary> /// Begins playback of the background stream of 8-bit PCM data. /// </summary> /// <param name="callback">Delegate invoked when more data is needed for the playback buffer.</param> /// <exception cref="ArgumentNullException"><paramref name="callback"/> is null.</exception> /// <exception cref="InvalidOperationException">The stream is already playing.</exception> /// <exception cref="ObjectDisposedException">The <see cref="AudioPlayer"/> instance has been disposed.</exception> public void BeginPlayback(BufferNeededCallback <byte> callback) => this.BeginPlaybackInternal(callback);
