DirectDrawSink video flickering

[cumaniok]

Hi,
I'm new  in GStreamer, and I'm developing a video player in C#. My player is all most done, but I have a little problem. For my player I'm using window form elements and the video is rendering on a panel, but when the video is playing, it's flickering.
Here is the piece of code:

            play = ElementFactory.Make("playbin2", "play") as PlayBin2;
            sink = ElementFactory.Make("directdrawsink", "videosink");  
            sink["force-aspect-ratio"] = true;
            play.VideoSink = sink;    

            Gst.Interfaces.XOverlayAdapter wadapter = new Gst.Interfaces.XOverlayAdapter(sink.Handle);                        
            wadapter.XwindowId = panel1.Handle;

There are no flickering  when the video is playing on default directdrawsink window or another window. It's flickering only when the video is rendering on a panel.

Can anyone tell me what I'm doing wrong?

[dhoyt]

> Hi,
> I'm new  in GStreamer, and I'm developing a video player in C#. My player is
> all most done, but I have a little problem. For my player I'm using window
> form elements and the video is rendering on a panel, but when the video is
> playing, it's flickering.

That's interesting. I'm using it right now with no flickering. There's some when you resize a window, but I'm not entirely surprised by that. Did you build it yourself? If you're using ossbuild, try using d3dvideosink (direct 3d video sink) instead. It's still being prepared to be submitted upstream to gstreamer, but it's available in ossbuild. That may prove better than the aging directdrawsink. There's also dshowvideosink (direct show video sink).

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[wl2776]

This could be caused by the oddities of your video subsystem.
We have a similar case. Another application extensively using DirectDraw, causes flickering on one computer and doesn't cause on several others.

[cumaniok]

I've solved this problem by using dshowvideosink instead of directdrawsink.