Re: ffmpeg for EL7
On 08/25/2016 06:28 AM, Dominik 'Rathann' Mierzejewski wrote:
On Thursday, 25 August 2016 at 10:24, Ralf Corsepius wrote:
> On 08/25/2016 10:01 AM, Nicolas Chauvet wrote:
[...]
>> Specially as ffmpeg doesn't do symbol version, if one process has
>> dependencies using both version, it will crash.
> AFAIU, as long as these packages are properly linked (and not libraries
> not being dlopened), package deps on SONAMEs would conflict and thus
> prevent such problems.
The point is that not all SONAMEs change with each FFmpeg version bump,
so, for example, ffmpeg-3.0.x and ffmpeg-3.1.x may have mostly the same
SONAMEs.
Here is an attempt at ffmpeg2.8 and ffmpeg3.0. This relies on different
sonames for all libraries.
If there was overlap, we could move the libraries into %{_libdir}/ffmpegX.X
and use ldconfig. I was going to start looking at 3.1 next.
As Ralf noted, the -devel (and -debuginfo) packages conflict, though this
could be worked around as well. Also, usually not necessary as you're
generally only building against one at a time.
--
Orion Poplawski
Technical Manager 303-415-9701 x222
NWRA, Boulder/CoRA Office FAX: 303-415-9702
3380 Mitchell Lane orion(a)nwra.com
Boulder, CO 80301 http://www.nwra.com
Attachments:
- ffmpeg2.8.spec (text/x-rpm-spec — 34.7 KB)
- ffmpeg3.0.spec (text/x-rpm-spec — 38.0 KB)