On 13 July 2017 at 17:51, Peter Alefounder via Hampshire <
hampshire@???> wrote:
>
> The installation was done by Dell. My web searches have revealed that
> I am not the only one with this problem. It appears that ffmpeg was
> left out of Ubuntu 14.04 for reasons unknown.
>
I wasn't aware of it not being available in 14.04.
> Installing ffmpeg from source won't satisfy apt dependencies,
>
> Whyever not? That appears to be an entirely unreasonable restriction.
>
APT cannot know how or where you install something that isn't in a deb
package.
> so you either need to get the universe repo enabled and install
> > ffmpeg through apt
>
> How do I enable the universe repo?
>
If ffmpeg isn't in the 14.04 release then enabling the universe repo won't
help
> > or you need to compile silentcast yourself.
>
> I don't think the source code is available, but will investigate.
>
> I obtained a deb file for ffmpeg, moved it to /var/cache/apt/archives/
> and tried to install from there (a procedure that has worked for
> something else), but got this:
>
> pra@pra-Inspiron-15-3552:~/software$ sudo apt-get install ffmpeg
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> Package ffmpeg is not available, but is referred to by another
> package.
> This may mean that the package is missing, has been obsoleted, or
> is only available from another source
>
The way you install deb packages from file rather than a repository is to
use dpkg directly:
dpkg -i /path/to/downloaded-ffmpeg-debfile.deb
However if the package is from a more recent release of Ubuntu then it
will likely depend on package versions that are only in that later release,
so you'll be descending into the dependency hell that APT was designed to
prevent.
--
Daniel Llewellyn
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