[Bug 763042] gen75_vpp_vebox.c:1415: hsw_veb_pre_format_convert: Assertion `0' failed.

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=763042

--- Comment #1 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
It's quite related with error handling done with asserts in libva-intel-driver,
like with bug 762500

Yesterday I found a similar one with mpeg2 when exporting from one format to
another: gst-play-1.0 /home/vjaquez/patterns/burosch1.mpg
--videosink=ximagesink

Nonetheless, in this case, using libva 1.6.2.pre2, and libva-intel-driver
1.6.2, setting to format=nv12 works just fine, but when setting format=i420 the
pipeline fails as you said. 

I wonder why would you like to change the format of the vaapi surface, if it
can be handled as a "opaque" structure. It does matter when you want to map it
and read the raw data in it, but this is not the case since you are using
vaapisink.

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