private void PresentNV12P010(MediaFrame frame, bool dispose = true)
{
// TODO: Possible process it directly after decoding (back to FFmpeg) to avoid Flush?
try
{
Utilities.Dispose(ref vpiv);
videoDevice1.CreateVideoProcessorInputView(frame.textureHW, vpe, vpivd, out vpiv);
VideoProcessorStream vps = new VideoProcessorStream()
{
PInputSurface = vpiv,
Enable = new RawBool(true)
};
vpsa[0] = vps;
videoContext1.VideoProcessorBlt(videoProcessor, vpov, 0, 1, vpsa);
context.PixelShader.SetShaderResource(0, srvRGB);
context.PixelShader.Set(pixelShader);
} catch (Exception) {
} finally { if (dispose)
{
Utilities.Dispose(ref frame.textureHW);
}
}
}
/* ID3D11VideoContext::VideoProcessorBlt | https://docs.microsoft.com/en-us/windows/win32/api/d3d11/nf-d3d11-id3d11videocontext-videoprocessorblt
*
* HRESULT VideoProcessorBlt (
* ID3D11VideoProcessor *pVideoProcessor,
* ID3D11VideoProcessorOutputView *pView,
* UINT OutputFrame,
* UINT StreamCount,
* const D3D11_VIDEO_PROCESSOR_STREAM *pStreams );
*
* 1. Opens Shared NV12 Texture (nv12SharedResource) on our SharpDX ID3Device from FFmpeg's ID3Device
* 2. Creates a new Video Processor Input View that we pass in Video Processor Streams
* 3. Calls Video Processor Blt to convert (in GPU) Shared NV12 Texture to our BackBuffer RBGA/BGRA Texture
* 4. Finally Presents the Frame to the outputHandle (SampleUI Form)
*/
public void PresentFrame(Texture2D textureHW)
{
videoDevice1.CreateVideoProcessorInputView(textureHW, vpe, vpivd, out vpiv);
VideoProcessorStream vps = new VideoProcessorStream()
{
PInputSurface = vpiv,
Enable = new RawBool(true)
};
vpsa[0] = vps;
videoContext1.VideoProcessorBlt(videoProcessor, vpov, 0, 1, vpsa);
_swapChain.Present(0, PresentFlags.None);
Utilities.Dispose(ref vpiv);
Utilities.Dispose(ref textureHW);
}
/* ID3D11VideoContext::VideoProcessorBlt | https://docs.microsoft.com/en-us/windows/win32/api/d3d11/nf-d3d11-id3d11videocontext-videoprocessorblt
*
* HRESULT VideoProcessorBlt (
* ID3D11VideoProcessor *pVideoProcessor,
* ID3D11VideoProcessorOutputView *pView,
* UINT OutputFrame,
* UINT StreamCount,
* const D3D11_VIDEO_PROCESSOR_STREAM *pStreams );
*
* 1. Opens Shared NV12 Texture (nv12SharedResource) on our SharpDX ID3Device from FFmpeg's ID3Device
* 2. Creates a new Video Processor Input View that we pass in Video Processor Streams
* 3. Calls Video Processor Blt to convert (in GPU) Shared NV12 Texture to our BackBuffer RBGA/BGRA Texture
* 4. Finally Presents the Frame to the outputHandle (SampleUI Form)
*/
public void PresentFrame(IntPtr nv12SharedResource)
{
Texture2D nv12SharedTexture = _device.OpenSharedResource <Texture2D>(nv12SharedResource);
videoDevice1.CreateVideoProcessorInputView(nv12SharedTexture, vpe, vpivd, out vpiv);
VideoProcessorStream vps = new VideoProcessorStream()
{
PInputSurface = vpiv,
Enable = new RawBool(true)
};
vpsa[0] = vps;
videoContext1.VideoProcessorBlt(videoProcessor, vpov, 0, 1, vpsa);
_swapChain.Present(0, PresentFlags.None);
Utilities.Dispose(ref vpiv);
Utilities.Dispose(ref nv12SharedTexture);
}
