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Bug 710944

Summary: media-video/ffmpeg USE=chromium : move libffmpeg.so ?
Product: Gentoo Linux Reporter: Joakim Tjernlund <joakim.tjernlund>
Component: Current packagesAssignee: Gentoo Media-video project <media-video>
Status: UNCONFIRMED ---    
Severity: normal CC: chewi, dilfridge, gentoo, jstein
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
Whiteboard:
Package list:
Runtime testing required: ---

Description Joakim Tjernlund 2020-02-27 17:04:30 UTC
Currently ffmpeg USE=chromium installs libffmpeg.so in
/usr/lib64/chromium which is a non standard search path for libs, other
apps like Teams for Linux cannot find it there.
Could libffmpeg.so be installed in /usr/lib64/ instead?
or a symlink: 
ls -l /usr/lib64/libffmpeg.so 
lrwxrwxrwx 1 root root 21 Feb 27 17:50 /usr/lib64/libffmpeg.so -> chromium/libffmpeg.so
Comment 1 Joakim Tjernlund 2020-04-01 21:07:19 UTC
net-im/teams now needs to create a LDPATH to find this lib:
	cat > 99teams <<-EOF
		LDPATH=${EROOT%/}/usr/$(get_libdir)/chromium
	EOF
	doenvd 99teams
Comment 2 Alexis Ballier gentoo-dev 2020-06-11 15:05:22 UTC
ccing people reponsible for the chromium patch & teams, respectively
Comment 3 James Le Cuirot gentoo-dev 2020-06-11 15:16:44 UTC
I tested it with Opera and I actively use it with Vivaldi. Unfortunately they don't pick it up from this path either. I wanted to conditionally install a symlink but I haven't had any cooperation from jer, who maintains these, so I've given up. I don't know whether they'd pick it up from /usr/lib but I could try.

Chromium itself seemingly stopped installing it as a separate file a long time ago. I hadn't considered Electron-based applications but I would have expected them to do the same.

Although I haven't seen any recently, incompatibilities can lead to crashes, either immediately or when playing a video so I'm not overly keen on putting it somewhere quite so global. Using a symlink allows you to enable this for some applications but not others.
Comment 4 James Le Cuirot gentoo-dev 2020-07-29 21:50:43 UTC
Eep, just started having crashes again with the latest Vivaldi update. :(
Comment 5 Stephan Hartmann gentoo-dev 2020-07-30 06:35:14 UTC
(In reply to James Le Cuirot from comment #4)
> Eep, just started having crashes again with the latest Vivaldi update. :(

Maybe you have updated to ffmpeg-4.3? Chromium-86 (starting with beta channel) will be first release that will fully support ffmpeg-4.3.
Comment 6 James Le Cuirot gentoo-dev 2020-07-30 10:49:56 UTC
(In reply to Stephan Hartmann from comment #5)
> (In reply to James Le Cuirot from comment #4)
> > Eep, just started having crashes again with the latest Vivaldi update. :(
> 
> Maybe you have updated to ffmpeg-4.3? Chromium-86 (starting with beta
> channel) will be first release that will fully support ffmpeg-4.3.

It's 4.3.1 but it may have been a false alarm. I checked Vivaldi and it was built against 4.2. I then tried 4.2.4 and 4.3, both of which worked, before rebuilding 4.3.1 and found that worked too. I don't know why but seems a rebuild was sufficient.
Comment 7 Andreas K. Hüttel archtester gentoo-dev 2020-10-16 19:21:24 UTC
This non-versioned library in a standard location will lead to pain, I fear.
Comment 8 James Le Cuirot gentoo-dev 2020-10-16 20:38:19 UTC
I should add that this path wasn't arbitrary. I think this is where Chromium used to install it and I can't remember for sure but I also think Vivaldi did originally pick it up from here, even though it doesn't now. Perhaps I could it in a versioned directory now to allow it to work when different incompatible browser versions are installed. I haven't seen any breakage for a while though, aside from that false alarm above.

I previously wasn't interested in what Teams is doing but now I actually work for Microsoft and may even end up doing some back end work involving Teams, I'll probably give it a closer look at some point. ;)
Comment 9 Joakim Tjernlund 2020-10-18 18:21:26 UTC
(In reply to James Le Cuirot from comment #8)
> 
> I previously wasn't interested in what Teams is doing but now I actually
> work for Microsoft and may even end up doing some back end work involving
> Teams, I'll probably give it a closer look at some point. ;)

Then you may be interested in fixing https://bugs.gentoo.org/747337 for
Teams :)