How to retrieve last-sample from d3d11videosink

[jean-philippe]

I need to store a snapshot from my live display. I'm using the D3D11 elements
on Windows 10 with GStreamer 1.18.3.

The relevant section of the pipeline: "d3d11h264dec ! d3d11convert !
d3d11videosink".

Variable 'sample' is null after the call in the following code:

GstSample* sample = nullptr;

g_object_get(videosink, "last-sample", &sample, NULL);
if (!sample)
   THROW("Failed getting sample");

If the last-sample option does not work, what alternative do I have to take
a snapshot?

Thanks




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