ffmpeg possibly missing compile option?

[Alexander Asteroth]

Dear all,

I'm trying to use vlc and ffmpeg on guix to cut mp4 files. When trying
to play the mp4 files using vlc I encounter errors like:

> Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object 
> file: No such file or directory

In [0] it is suggested that missing compile options are the reason for
these kind of errors might be missing compile flags (--enable...) which
are in fact not enabled in the package specification of ffmpeg.

On te ofther hand I tried to install vdpauinfo and it returns:

> $ vdpauinfo 
> display: :0   screen: 0
> Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object 
> file: No such file or directory
> Error creating VDPAU device: 1

So it might be caused by missing libraries for my graphicscard.

Any idea? Someone?

Cheers,

        Alex

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[0] https://forum.videolan.org/viewtopic.php?p=517583