From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: libvdpau: cannot open shared object
Date: Thu, 14 Dec 2017 10:07:20 +0100
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To: Efraim Flashner <efraim@flashner.co.il>
Cc: help-guix@gnu.org

Hi!

Efraim Flashner <efraim@flashner.co.il> skribis:

> On Tue, Dec 12, 2017 at 05:44:43PM +0100, Ludovic Court=C3=A8s wrote:

[...]

>> I searched for =E2=80=9Clibvdpau_i965.so=E2=80=9D on the intertubes and =
it seems to be a
>> problem =E2=80=9Ceveryone has.=E2=80=9D  For instance:
>>=20
>>   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D869815
>>=20
>> So it seems that we lack a driver package.
>>=20
>> Ludo=E2=80=99.
>
> here's a patch for libvdpau-va-gl. after setting 'VDPAU_DRIVER=3Dva_gl'
> and running 'guix environment --ad-hoc libvdpau-va-gl vdpauinfo -- vdpaui=
nfo'
> I get:
> display: :0.0   screen: 0
> Failed to open VDPAU backend libvdpau_va_gl.so: cannot open shared object=
 file: No such file or directory
> Error creating VDPAU device: 1
> so it still needs some more work

What if you point LD_LIBRARY_PATH to libvdpau-va-gl?

> From da659401a0116d0810f003769c933253f5b18f4c Mon Sep 17 00:00:00 2001
> From: Efraim Flashner <efraim@flashner.co.il>
> Date: Tue, 12 Dec 2017 21:44:49 +0200
> Subject: [PATCH] gnu: Add libvdpau-va-gl.
>
> * gnu/packages/video.scm (libvdpau-va-gl): New variable.
> * gnu/packages/patches/libvdpau-va-gl-unbundle.patch: New file.
> * gnu/local.mk (dist_patch_DATA): Register it.

[...]

> +    (native-inputs
> +     `(("libvdpau" ,libvdpau)

Should move to =E2=80=98inputs=E2=80=99 I guess?

Otherwise LGTM, thanks for acting this fast!

When we have that, we can at least arrange for things to work
out-of-the-box on GuixSD.  It=E2=80=99s better if we can do that without se=
tting
LD_LIBRARY_PATH, we=E2=80=99ll have to investigate how this can be done.  At
least, we=E2=80=99ll have to set VDPAU_DRIVER=3Dva_gl I presume?

Thanks,
Ludo=E2=80=99.