protected override void OnDispose(bool isDisposing)
{
if (isDisposing)
{
if (_queue.Count != VideoFrameQueueSize)
{
Debug.WriteLine("VideoRenderer is being disposed while frames are still being encoded.");
}
var videoTrack = VideoTrack;
if (videoTrack != null)
{
videoTrack.LocalVideoFrameProcessed -= OnLocalVideoFrameProcessed;
}
_frameTable.Values.DisposeAll();
ThreadLock3D?.Dispose();
DeviceDXGI?.Dispose();
Device3D?.Dispose();
FactoryDXGI?.Dispose();
_sdlWindow?.Dispose();
}
}
public VideoRenderer(VideoTrack videoTrack, RendererOptions options)
{
VideoTrack = videoTrack;
VideoFrameWidth = options.VideoFrameWidth;
VideoFrameHeight = options.VideoFrameHeight;
VideoFrameQueueSize = options.VideoFrameQueueSize;
videoTrack.LocalVideoFrameProcessed += OnLocalVideoFrameProcessed;
// _onMissedFrame = options.OnMissedFrame ?? OnMissedFrame;
bool debug = options.CreationFlags.HasFlag(D3D11.DeviceCreationFlags.Debug);
FactoryDXGI = new DXGI.Factory2(debug);
// Find the requested adapter.
using (var adapters = FactoryDXGI.Adapters.ToDisposableList())
{
var adapter = adapters.First(a => a.Description.VendorId == options.AdapterVendorId);
Device3D = new D3D11.Device(adapter, options.CreationFlags, options.FeatureLevels);
DeviceDXGI = Device3D.QueryInterface <DXGI.Device>();
// We need to access D3D11 on multiple threads, so enable multi-threading
ThreadLock3D = Device3D.ImmediateContext.QueryInterface <D3D11.Multithread>();
ThreadLock3D.SetMultithreadProtected(true);
if (options.PreviewWindowOptions != null)
{
var width = options.PreviewWindowOptions.Width ?? VideoFrameWidth;
var height = options.PreviewWindowOptions.Height ?? width * VideoFrameHeight / VideoFrameWidth;
_sdlWindow = new SdlWindow("WebRTC server preview", width, height);
// SwapChain description
var desc = new DXGI.SwapChainDescription1()
{
BufferCount = 2,
AlphaMode = DXGI.AlphaMode.Unspecified,
Format = DXGI.Format.B8G8R8A8_UNorm,
Width = VideoFrameWidth,
Height = VideoFrameHeight,
Scaling = DXGI.Scaling.Stretch,
Stereo = false,
Flags = DXGI.SwapChainFlags.AllowTearing | DXGI.SwapChainFlags.FrameLatencyWaitAbleObject,
Usage = DXGI.Usage.RenderTargetOutput,
SampleDescription = new DXGI.SampleDescription(1, 0),
SwapEffect = DXGI.SwapEffect.FlipDiscard,
};
SwapChain = new DXGI.SwapChain1(FactoryDXGI, Device3D, _sdlWindow.NativeHandle, ref desc);
using (var swapChain2 = SwapChain.QueryInterface <DXGI.SwapChain2>())
{
var value = swapChain2.MaximumFrameLatency;
swapChain2.MaximumFrameLatency = 1;
}
}
}
}
