[Bug 781069] GPU resources and VAAPI

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=781069

--- Comment #5 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
(In reply to Benjamin from comment #4)
> Hi, 
> I have reported the issue with Intel-Vaapi-Driver they found out it's a
> GStreamer issue and told me to report back here.
> 
> The findings were: 
> Gstreamer is making the interlaced content double the framereate after
> inserting the deinterlacer. My source is intelaced at 25FPS the output comes
> out 50 FPS and that's what is making the load double in GPU. 
> 
> We tried disabling the deinterlace in vappipostproc and then load was normal
> and FPS was the same as source.

As far as I know, that's what interlaced media does[1], captures in a single
frame, two different times. So, when doing the opposite, the framerate is
duplicated. Am I losing something?

1. https://en.wikipedia.org/wiki/Interlaced

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