Bug 6809

Hi Barry,

(In reply to comment #0)
> Description of problem:
> # urpmi clementine
> A requested package cannot be installed:
> gstreamer0.10-ffmpeg-0.10.13-3.mga2.i586 (due to unsatisfied libavformat.so.53)
> 
> gstreamer0.10-ffmpeg-0 needs to be built against new ffmpeg-0.11.1 which now
> provides libavformat.so.54
> 
> Version-Release number of selected component (if applicable):
> 

I seem to be able to install gstreamer0.10-ffmpeg and clementine fine. What is your mirror?

(In reply to comment #1)
> Hi Barry,
> 
> (In reply to comment #0)
> > Description of problem:
> > # urpmi clementine
> > A requested package cannot be installed:
> > gstreamer0.10-ffmpeg-0.10.13-3.mga2.i586 (due to unsatisfied libavformat.so.53)
> > 
> > gstreamer0.10-ffmpeg-0 needs to be built against new ffmpeg-0.11.1 which now
> > provides libavformat.so.54
> > 
> > Version-Release number of selected component (if applicable):
> > 
> 
> I seem to be able to install gstreamer0.10-ffmpeg and clementine fine. What is
> your mirror?

After some investigations, we found out that Barry did not have the tainted repository (while I did), which still appears to carry libavformat.so.53. So this package needs to be removed from there.

Regards,

-- Shlomi Fish

Created attachment 2587 [details]
proposed patch for ffmpeg

Tainted still has 
libavcodec53-0.10.3-1.mga2.tainted.i586.rpm
libavformat53-0.10.3-1.mga2.tainted.i586.rpm

Looking at the ffmpeg spec I see a typo which is responsible for one of these:-
Obsoletes:	%{_lib}avformats53 < %{version}-%{release}
                               ^
The other seems to be missing a correct Obsoletes: altogether.

Attached is a patch for ffmpeg. i would like a second opinion before I jump in with both feet ;)
Also can anyone explain the existing provides and obsoletes here as they don't look right to me

%package -n %{avclibname}
Group:          System/Libraries
Summary:        Shared library part of ffmpeg
Provides:       libffmpeg = %{version}-%{release}
Obsoletes:	%{_lib}ffmpeg53 < 0.8.2-2

Library packages have different names using a number at the end specifically so different (major) versions can be installed at the same time. So no, libavformat54 should not obsolete libavformat53. That is actually the workaround for this bug: just install the "old" ffmpeg libs from mga2, until gstreamer0.10-ffmpeg is finally updated. The obsoletes are most likely for cases where the package was renamed (while the major library version staid the same) or split.

See https://wiki.mageia.org/en/Libraries_policy if you want to know more about this.

(In reply to comment #4)
> Library packages have different names using a number at the end specifically so
> different (major) versions can be installed at the same time. So no,
> libavformat54 should not obsolete libavformat53. That is actually the
> workaround for this bug: just install the "old" ffmpeg libs from mga2, until
> gstreamer0.10-ffmpeg is finally updated. The obsoletes are most likely for
> cases where the package was renamed (while the major library version staid the
> same) or split.
> 
> See https://wiki.mageia.org/en/Libraries_policy if you want to know more about
> this.

Thanks Christiaan - I now agree, that's why I was checking ;)
I found the reason for the apparent typo - it is correct, and covers an earlier error corrected in revision 149857.

So there is no issue with ffmpeg, it is gstreamer0.10-ffmpeg that needs a rebuild.

I'm setting this as ASSIGNED to me.

Status: NEW => ASSIGNED

OK, I've ran into a problem. It turns out that I cannot install ffmpeg-devel:

[root@telaviv1 ~]# urpmi ffmpeg-devel
The following package cannot be installed because it depends on packages
that are older than the installed ones:
lib64ffmpeg-devel-0.11.1-1.mga3
Continue installation anyway? (Y/n) n
[root@telaviv1 ~]# 

I have disabled the tainted repository for this build.

OK, after I rebuilt the "ffmpeg" package (and submitted it in r278609 ), I am able to install ffmpeg-devel. But now the build of gstreamer0.10-ffmpeg fails with some compile errors. Apparently, it does not like the new ffmpeg, which broke backwards compatibility. Morever, there is not any update to the gst-ffmpeg-0.10 packages and gst-ffmpeg-0.11.x appears to require gstreamer0.11.

So this bug will have to be placed on hold.

Regards,

-- Shlomi Fish

gstreamer-ffmpeg currently does not have support for building with ffmpeg 0.11 or libav 0.9 (which have similarly updated APIs)
It is quite a lot of work to port it to the new APIs.

We could enable again the internal ffmpeg (actually libav) build, but the included snpashot (in gst-ffmpeg 0.10.13) does not build with gcc 4.7.

We could then also upgrade to gst-ffmpeg git, which does include a newer snapshot of libav.

CC: (none) => shlomif
Assignee: shlomif => mageia

I think it is fixed.

Status: ASSIGNED => RESOLVED
CC: (none) => fundawang
Resolution: (none) => FIXED