How to retrieve last-sample from d3d11videosink

[Nicolas Dufresne]

Le mardi 02 mars 2021 à 10:51 -0600, jean-philippe a écrit :
> 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?

Can you check is enable-last-sample property is set ?

> 
> Thanks
> 
> 
> 
> 
> --
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