[Bug 772457] Delayed linking fails when requesting non NV12 colorspaces from decodebin

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=772457

--- Comment #3 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
Using glimagesink works for me *but* exporting the envvar LIBGL_DRI3_DISABLE=1 
because a bug in DRI3 (already fixed in upstream).

So, it only happens when mapping to system memory.

Strangely enough, when using this pipeline

gst-launch-1.0 filesrc location=bbb-1920-1080-30.mp4 ! decodebin !
vaapipostproc ! xvimagesink

also works fine.

But, I cannot see the machine freeze that you mentioned (I'm testing on
haswell)

In my understanding, decodebin is not doing what it did in before when
negotiating memory:system feature caps.

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