public void Play()
{
if (frameLoopTask == null)
{
frameLoopTask = Task.Run(() => FrameLoopAsync(tokenSource.Token), tokenSource.Token);
}
engine.Play();
}
static void Main(string[] args)
{
// Select a File to play
var openFileDialog = new OpenFileDialog {
Title = "Select a music file", Filter = "Music Files(*.WMA;*.MP3;*.WAV)|*.WMA;*.MP3;*.WAV"
};
var result = openFileDialog.ShowDialog();
if (result == DialogResult.Cancel)
{
return;
}
// Initialize MediaFoundation
MediaManager.Startup();
// Creates the MediaEngineClassFactory
var mediaEngineFactory = new MediaEngineClassFactory();
// Creates MediaEngine for AudioOnly
var mediaEngine = new MediaEngine(mediaEngineFactory, null, MediaEngineCreateFlags.AudioOnly);
// Register our PlayBackEvent
mediaEngine.PlaybackEvent += OnPlaybackCallback;
// Query for MediaEngineEx interface
mediaEngineEx = mediaEngine.QueryInterface <MediaEngineEx>();
// Opens the file
var fileStream = openFileDialog.OpenFile();
// Create a ByteStream object from it
var stream = new ByteStream(fileStream);
// Creates an URL to the file
var url = new Uri(openFileDialog.FileName, UriKind.RelativeOrAbsolute);
// Set the source stream
mediaEngineEx.SetSourceFromByteStream(stream, url.AbsoluteUri);
// Wait for MediaEngine to be ready
if (!eventReadyToPlay.WaitOne(1000))
{
Console.WriteLine("Unexpected error: Unable to play this file");
}
// Play the music
mediaEngineEx.Play();
// Wait until music is stopped.
while (!isMusicStopped)
{
Thread.Sleep(10);
}
}
/// <summary>
/// Plays the audio/video.
/// </summary>
public void Play()
{
if (mediaEngineEx != null)
{
if (mediaEngineEx.HasVideo() && isVideoStopped)
{
isVideoStopped = false;
}
if (IsEndOfStream)
{
PlaybackPosition = 0;
IsPlaying = true;
}
else
{
if (textureView == null)
{
int width = 0;
int height = 0;
mediaEngineEx.GetNativeVideoSize(out width, out height);
OutputVideoTexture = new SharpDX.Direct3D11.Texture2D(
d3dDevice,
new SharpDX.Direct3D11.Texture2DDescription()
{
ArraySize = 1,
Width = width,
Height = height,
Usage = SharpDX.Direct3D11.ResourceUsage.Default,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
BindFlags = SharpDX.Direct3D11.BindFlags.RenderTarget | SharpDX.Direct3D11.BindFlags.ShaderResource,
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
MipLevels = 1,
});
textureView = new ShaderResourceView(d3dDevice, OutputVideoTexture);
}
mediaEngineEx.Play();
}
IsEndOfStream = false;
}
}
/// <summary>
/// Plays the audio/video.
/// </summary>
public void Play()
{
if (mediaEngineEx != null)
{
if (mediaEngineEx.HasVideo() && isVideoStopped)
{
isVideoStopped = false;
}
if (isEndOfStream)
{
PlaybackPosition = 0;
IsPlaying = true;
}
else
{
mediaEngineEx.Play();
}
isEndOfStream = false;
}
}
/// <summary>
/// Defines the entry point of the application.
/// </summary>
/// <param name="args">The args.</param>
public static void Run()
{
// Select a File to play
var openFileDialog = new OpenFileDialog {
Title = "Select a file",
};
var result = openFileDialog.ShowDialog();
if (result == DialogResult.Cancel)
{
return;
}
// Initialize MediaFoundation
MediaManager.Startup();
var renderForm = new SharpDX.Windows.RenderForm();
device = CreateDeviceForVideo(out dxgiManager);
// Creates the MediaEngineClassFactory
var mediaEngineFactory = new MediaEngineClassFactory();
//Assign our dxgi manager, and set format to bgra
MediaEngineAttributes attr = new MediaEngineAttributes();
attr.VideoOutputFormat = (int)SharpDX.DXGI.Format.B8G8R8A8_UNorm;
attr.DxgiManager = dxgiManager;
// Creates MediaEngine for AudioOnly
var mediaEngine = new MediaEngine(mediaEngineFactory, attr, MediaEngineCreateFlags.None);
// Register our PlayBackEvent
mediaEngine.PlaybackEvent += OnPlaybackCallback;
// Query for MediaEngineEx interface
mediaEngineEx = mediaEngine.QueryInterface <MediaEngineEx>();
// Opens the file
var fileStream = openFileDialog.OpenFile();
// Create a ByteStream object from it
var stream = new ByteStream(fileStream);
// Creates an URL to the file
var url = new Uri(openFileDialog.FileName, UriKind.RelativeOrAbsolute);
// Set the source stream
mediaEngineEx.SetSourceFromByteStream(stream, url.AbsoluteUri);
// Wait for MediaEngine to be ready
if (!eventReadyToPlay.WaitOne(1000))
{
Console.WriteLine("Unexpected error: Unable to play this file");
}
//Create our swapchain
swapChain = CreateSwapChain(device, renderForm.Handle);
//Get DXGI surface to be used by our media engine
var texture = Texture2D.FromSwapChain <Texture2D>(swapChain, 0);
var surface = texture.QueryInterface <SharpDX.DXGI.Surface>();
//Get our video size
int w, h;
mediaEngine.GetNativeVideoSize(out w, out h);
// Play the music
mediaEngineEx.Play();
long ts;
RenderLoop.Run(renderForm, () =>
{
//Transfer frame if a new one is available
if (mediaEngine.OnVideoStreamTick(out ts))
{
mediaEngine.TransferVideoFrame(surface, null, new SharpDX.Rectangle(0, 0, w, h), null);
}
swapChain.Present(1, SharpDX.DXGI.PresentFlags.None);
});
mediaEngine.Shutdown();
swapChain.Dispose();
device.Dispose();
}