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

[Wladimir Mutel]

On Wed, Mar 18, 2015 at 10:15:54AM +0800, Xiang, Haihao wrote:
> 
> Does reverting d491750cac25123684fba4ed84a11083e47a5b25 mentioned in the
> previous email resolve the issue for you ?

	After some experiments with intermediate libva versions it was found 
	that my problem happens due to bad interaction of current Xine libs 
	with newer versions of libva & intel vaapi driver. 
	It is not reproducible with other players (tested with 'mpv -vo=vaapi').

	So I am reassigning my Launchpad bug to xine-libs maintainers.
	Hope you (Haihao) could add more details on your conversation with Xine people.

> 
> Thanks
> Haihao
> 
> 
> > 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
> > > 
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> 
>