Re: FFmpeg-8.0 Warning

On 9/23/25 5:16 PM, Joe Locash ([email protected] via blfs-dev Mailing List) wrote:
> On 9/23/25 1:45 PM, Rahul Chandra ([email protected] via blfs-dev Mailing 
> List) wrote:
>> We can actually do more then just that. Because Firefox only links to ffmpeg at 
>> runtime, you can actually keep both 8.0 and 7.1.1 installed (what I've been doing 
>> for the last week). You essentially just have to keep all the .so files except the 
>> ones that should link to the latest version (i.e ending in just .so and 
>> not .so.58). I've been doing this for the last week and firefox works great for me 
>> and packages are still linking to ffmpeg 8.0 at build time. Something similar to 
>> this: https://gitlab.archlinux.org/archlinux/packaging/packages/ffmpeg4.4 
> 
> I would say this is the best approach. Firefox-140 only needs the ffmpeg-7.1 libs and 
> that's easy to do. Do a normal build of ffmpeg-7 but only install the libs
> :
> 
>    make DESTDIR=dest install
> as root:
>    for lib in dest/usr/lib/*; do
>      if [[ $lib == *.so ]]; then
>        ln -srf -- dest/usr/lib/"$(readlink "$lib")" "$lib"
>      elif [[ ! -d $lib ]]; then
>        mv "$lib" /usr/lib
>      fi
>    done

I'm not sure if I got this right, but I installed ffmpeg8 as a DESTDIR=/opt/ffmpeg8/

Then I created a script:

$ cat firefox-ffmpeg8
#! /usr/bin/bash

export LD_LIBRARY_PATH=/opt/ffmpeg8/usr/lib/
firefox


And ran a random youtube video.  It seemed to play fine, but I'm not sure if it 
picked up the right libraries.

Is there a way to see what libraries are being used?

-- 
http://lists.linuxfromscratch.org/sympa/info/blfs-dev
Unsubscribe: See the above information page