[Libva] Fwd: vaapi intel driver regression: d491750 solid green display output

[Wladimir Mutel]

Dear VAAPI deelopers,

I observe similar effects on Acer 1830T with i3-380UM CPU and IronLake GPU.
I tested this on Ubuntu Vivid (development branch, x86_64) with xine-ui 0.99.9-1.2 
configured for vaapi video output, xine libs of version 1.2.6-1build1 
and i965-va-driver of version 1.5.0-1

On some mkv/h264 files, the picture is initially green, then it morphs 
for about 1 second, and some colored pieces appear, then it goes black and solid-green again.
In xine stderr I see these messages repeating :

[h264 @ 0x7f2ce0003920] hardware accelerator failed to decode picture

reverting i965-va-driver to version 1.3.2-1 fixes the problem.

non-mkv files (.avi, .mpg)  are displayed fine with either of these versions.
So this may have something to do with .mkv encapsulation.
(at least I was unable to reproduce this with other formats than .mkv)

I reported this initially at https://bugs.launchpad.net/ubuntu/+source/intel-vaapi-driver/+bug/1429774
Ubuntu people told me to inform also VAAPI maillist about that.

Please advise what to do next. Thank you in advance.

On Sat, Jan 10, 2015 at 03:00:29PM +0100, Emmanuel Benisty wrote:
> CC'ing libva ML.
> 
> ---------- Forwarded message ----------
> From: Emmanuel Benisty <benisty.e at gmail.com>
> Date: Sun, Jan 4, 2015 at 6:27 PM
> Subject: vaapi intel driver regression: d491750 solid green display output
> To: "Beauchesne, Gwenole" <gwenole.beauchesne at intel.com>
> 
> 
> Hi Gwenole,
> 
> The following commit introduced some display output regression, images
> are displayed as solid green only:
> 
> 491750c vpp: drop internal postprocessing (I965_PP_xxx) flags.
> 
> This is with i3 330M (ILK), let me know if you need any further info.
> 
> Thanks
> -- Emmanuel
>