[Libva] Decoding and displaying multiple streams using gstreamer-vaapi

[Krzysztof Kotlenga]

On Tue, 2012-09-18 at 17:30 +0200, Gwenole Beauchesne wrote:
> 2012/9/14 Krzysztof Kotlenga <pocek at users.sf.net>:
> 
>> gst-launch-0.10 -e filesrc location=some.mkv ! matroskademux ! tee name=tee \
>> tee. ! queue ! vaapidecode ! fakesink \
>> tee. ! queue ! vaapidecode ! fakesink
>>
>> Errors with vdpau-driver range from SIGSEGV to one from:
> 
> I pushed a few fixes to vdpau-driver, but this threading issue is not
> resolved yet.
> 
>> libva/intel-driver/gstreamer-vaapi from ubuntu 12.04 also sometimes
>> crash with SIGSEGV in this case (i965). Master branches as of today
>> seem to work fine though.
> 
> There was indeed a bug in the way VA objects were maintained. Since
> the original code came from libva, it got propagated to almost every
> piece of VA driver (intel-driver, vdpau-driver, xvba-driver, etc.).

Thanks, I made a little patch to fix the outstanding issue in the
vdpau driver. Seems to work fine now. The patch follows in another
mail (git formatted).