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Re: libvdpau: cannot open shared object
From: |
Efraim Flashner |
Subject: |
Re: libvdpau: cannot open shared object |
Date: |
Fri, 15 Dec 2017 08:38:55 +0200 |
User-agent: |
Mutt/1.9.1 (2017-09-22) |
On Thu, Dec 14, 2017 at 10:07:20AM +0100, Ludovic Courtès wrote:
> Hi!
>
> Efraim Flashner <address@hidden> skribis:
>
> > On Tue, Dec 12, 2017 at 05:44:43PM +0100, Ludovic Courtès wrote:
>
> [...]
>
> >> I searched for “libvdpau_i965.so” on the intertubes and it seems to be a
> >> problem “everyone has.” For instance:
> >>
> >> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869815
> >>
> >> So it seems that we lack a driver package.
> >>
> >> Ludo’.
> >
> > here's a patch for libvdpau-va-gl. after setting 'VDPAU_DRIVER=va_gl'
> > and running 'guix environment --ad-hoc libvdpau-va-gl vdpauinfo --
> > vdpauinfo'
> > 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 <address@hidden>
> > 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 ‘inputs’ I guess?
>
> Otherwise LGTM, thanks for acting this fast!
$ guix gc --references $(guix build libvdpau-va-gl)
/gnu/store/1zfmi6bixxz3fljr4kfy37xpjial90p1-libva-1.8.3
/gnu/store/3h31zsqxjjg52da5gp3qmhkh4x8klhah-glibc-2.25
/gnu/store/6wyjls0q2c9gjskkplsr1ad09p3d8gzg-gcc-5.4.0-lib
/gnu/store/7mdyg1vigcxqb1ra16mdqnhz8aa00xc7-libxext-1.3.3
/gnu/store/8z7130mb33a3jqliqs6bq2d46mar5gqy-mesa-17.2.1
/gnu/store/d3pbj6vynkig0v0lnwp9nh04sijxin2w-libvdpau-va-gl-0.4.2
/gnu/store/p37m873k9k69m944njar80i6bsmqrcvj-libx11-1.6.5
libvdpau is actually a propagated input of mesa
>
> When we have that, we can at least arrange for things to work
> out-of-the-box on GuixSD. It’s better if we can do that without setting
> LD_LIBRARY_PATH, we’ll have to investigate how this can be done. At
> least, we’ll have to set VDPAU_DRIVER=va_gl I presume?
>
> Thanks,
> Ludo’.
From the upstream documentation VDPAU_DRIVER=va_gl is the minimum needed
to get it working, and then there are a couple of other environmental
variables that can be set to change its behavior.
$ VDPAU_DRIVER=va_gl LD_LIBRARY_PRELOAD=$(guix build libvdpau-va-gl) env | grep
VDPAU
VDPAU_DRIVER=va_gl
$ VDPAU_DRIVER=va_gl LD_LIBRARY_PRELOAD=$(guix build libvdpau-va-gl) vdpauinfo
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
Not so helpful to us, but upstream wants us to install it in the same
directory as the other vdpau*so files. I suppose we could add a
mesa-headers package and use that to build it and then just copy it into
mesa-out/lib/vdpau, but I really don't like that idea. I'm inclined to
push it as is and then we'll work out exactly how to make it work for
us.
--
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- libvdpau: cannot open shared object, Marco van Hulten, 2017/12/10
- Re: libvdpau: cannot open shared object, ng0, 2017/12/10
- Re: libvdpau: cannot open shared object, Efraim Flashner, 2017/12/10
- Re: libvdpau: cannot open shared object, Ludovic Courtès, 2017/12/12
- Re: libvdpau: cannot open shared object, Efraim Flashner, 2017/12/12
- Re: libvdpau: cannot open shared object, Ludovic Courtès, 2017/12/14
- Re: libvdpau: cannot open shared object,
Efraim Flashner <=
- Re: libvdpau: cannot open shared object, Ludovic Courtès, 2017/12/15
- Re: libvdpau: cannot open shared object, Efraim Flashner, 2017/12/15
- Re: libvdpau: cannot open shared object, Ludovic Courtès, 2017/12/15
- Re: libvdpau: cannot open shared object, Marco van Hulten, 2017/12/16
- Re: libvdpau: cannot open shared object, Ricardo Wurmus, 2017/12/16
- Re: libvdpau: cannot open shared object, Efraim Flashner, 2017/12/16
- Re: libvdpau: cannot open shared object, Ludovic Courtès, 2017/12/18