Re: FFmpeg-8.0 Warning

On 9/20/25 9:02 PM, Zeckma ([email protected] via blfs-dev Mailing 
List) wrote:
> FFmpeg-8.0 is ABI incompatible with 7.1. BLFS in the development books
> has updated to FFmpeg-8.0. Several packages do not yet support
> FFmpeg-8.0. Some of our own editing team have been bitten from
> incompatibilites, such as:
> 1. Unable to watch live streams.
> 2. Unable to watch several videos and movies.
> 3. Unable to access healthcare portals.
> 4. Epic hangs.
> 5. Packages fail to build against FFmpeg-8.0 like MLT.
>
> I estimate these issues won't get fixed for around another month. Thus,
> I recommend to NOT upgrade to FFmpeg-8.0 to avoid a lot of headaches
> and to ensure compatibility with all the software you currently use.
>
> If you already upgraded or freshly installed FFmpeg-8.0 on your LFS
> system, it would be a good idea to rollback to FFmpeg-7.1.
>
> We may look into rolling back FFmpeg in the book. We pushed it out
> in the book way too early.
>
> I will send another email when the dust has settled and when it seems
> mostly safe to install FFmpeg-8.0.
>
> Apologies to any users with FFmpeg-8.0 currently installed as a result
> of it being in the BLFS development (svn/git) book.
>
> - Zeckma
>
I would like to propose to everyone the idea of reverting back to 
ffmpeg-7.1 until at least Firefox is fixed.

The Epic in question is related to healthcare portals, such as those for 
Northwestern Medicine and AdvocateAurora Health Care. These portals use 
AVIF images to handle part of their websites. These now hang on Firefox 
with ffmpeg-8, and Firefox will have to be killed. If using ffmpeg-7.1 
on the same system, they work just fine.

- Doug

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