[VDPAU] Testcase for the libvdpau dlopen segfault bug

[Aaron Plattner]

On 03/14/2012 06:45 AM, Christian König <deathsimple at vodafone.de> wrote:
> On 13.03.2012 17:45, Anssi Hannula wrote:
>> As it might be of interest, here's a testcase I wrote last week for the
>> issue that calling vdp_device_create_x11() will cause a callback to be
>> set that will be run at XCloseDisplay() time, causing a crash if
>> libvdpau has been dlclose()d already when XCloseDisplay() gets called.
>>
>> There's nothing new in it but it can save some testing time if someone
>> eventually takes a closer look.
>>
>> The segfault happens both when vdp_device_create_x11() is successful and
>> when it fails (e.g. on any non-VDPAU-supporting system/driver).
>>
>> This is Debian bug #592204, NVIDIA internal bug #770623.
>> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=592204
>>
>> This has in the past affected at least mplayer and XBMC, though current
>> mplayer doesn't dlopen() libvdpau anymore and current XBMC has a
>> workaround for this (it never dlclose()s libvdpau). This affects
>> libvdpau 0.4+ (that version added the dri stuff).
>
> Well that reminds me that I wanted to ask if we already have an unit
> testing suite for VDPAU?
>
> Something like testing the different rendering features, decoding sample
> streams and compare them to software decoded reference frames etc...
>
> E. g. something like piglit just for VDPAU?

There isn't one.  This might be a good excuse to learn gtest.

-- Aaron