SharpGl not work

[tqk2811]

Firstly thank you.
That frame i got from libav with pixel format YUV420P
Console Output: Pushed 3196433, WxH: 1080x2400 linesize:1152,576,576

public unsafe void PushFrame(AVFrame* frame)
{
 switch((AVPixelFormat)frame->format)
 {
   //case AVPixelFormat.AV_PIX_FMT_NV12://VGA decode
   //  break;
   case AVPixelFormat.AV_PIX_FMT_YUV420P://h264 decode
     break;
   default: throw new NotSupportedException(((AVPixelFormat)frame->format).ToString());
 }

 AVFrame* clone = av_frame_clone(frame);
 frames.Enqueue(clone);
 Console.WriteLine($"Pushed {clone->pts}, WxH: {clone->width}x{clone->height} linesize:{clone->linesize[0]},{clone->linesize[1]},{clone->linesize[2]}");
}

Can you look a bit my code? Thank.
InitShader (sub function and shader string: BuildShader) it like OpenGLDisplay::initializeGL
RenderFrame it like OpenGLDisplay::paintGL

And screen output only black

[MasterAler]

@tqk2811

Hmmm... let's begin with simple assumptions:

1. area shaders the same?
2. no errors in the output? glGetError returns something if inserted for debug purposes?
3. if you take exacly the same unmanaged code, even without for loop, as close as possible -- any changes then?

UPD: ah, haven't noticed the Closed status. Glad that it's been solved!
Feel free to share any tips or propose code improvements))

[tqk2811]

Thankyou again.
I did it, YUV420Render

---

seems like color a bit white