[Bug 766978] mpeg-2 decoding broken

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=766978

--- Comment #17 from Tim-Philipp Müller <t.i.m at zen.co.uk> ---
> > I have problems with xvimagesink now though. The bccnews clip just flashes
> > green frames after a few seconds, and with another H264-HD-in-TS clip I get
> > green macroblock-height rows but the pic is also distorted and wrong colours.
> 
> Yes, confirmed. Somehow vaapipostproc pushes empty buffers or xvimagesink
> renders empty buffers
> 
> **@Tim, just wondering, is this still a blocker for 1.10?**

Well, it's less of a blocker than it was before, but the overall situation with
gstreamer-vaapi or this decoder/postproc combination is far from great:

 - with xvimagesink: green frames/flashes, unusuable
 - with ximagesink: just aborts (driver assert afaict)
 - with glimagesink: works, even subs rendered right
 - with vaapisink: works, subs not scaled right

We're having a decoder with primary rank that's pretty much unusable unless the
application picks vaapisink or glimagesink, which is not great.

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