Latest news
FFmpeg and libav
libav from the Ubuntu repositories
Ubuntu started shipping the libav fork instead of FFmpeg in recent releases. If you installed the ffmpeg package, then you actually installed the libav-tools package and a program that told you to use avconv
instead of ffmpeg
in the future, giving the impression that ffmpeg is deprecated, which it is not.
The transitional ffmpeg
package seems to have been removed from trusty/Ubuntu 14.04 (compare the package files listing for saucy and trusty of the source package).
So one option is to install the libav-tools package and use avconv
instead (NB that this is not "mainline" FFmpeg but a prominent fork instead).
FFmpeg from a PPA on Launchpad
Another option is to use a PPA that provides FFmpeg. Please have a look at the FFmpeg download page for details of available PPAs and packages. You should check individual PPAs every once in a while if they are still up to date.
Related questions:
Install from source
Another option is to install FFmpeg dependency packages, then manually compile+install it from source.
Use static builds
While it may look a bit awkward from the packaging perspective, you could also use any static build from trusted sources. In my case I keep FFmpeg Windows 32-Bit and 64-Bit binaries along with x264-10-Bit binaries in a folder to run them in Wine or Windows whenever I need to.
The following is what I could find, when researching this topic. I haven't been following the development of both projects closely and it is not my intention to blame anyone. You as a reader shouldn't do either.
How did the fork happen?
Wikipedia states that the forked project as well as the initial release were announced on March 13th 2011, however there is a bit more that was going on.
Digging through Git commits
Official announcements on libav.org
The following posts are from the news section (with the oldest in last):
August 09 2011
Updated on 12.09.2011.
For consistency with our new name we have renamed ffplay to avplay,
ffserver to avserver and ffprobe to avprobe. Their behavior is the
same, just the names were changed.
With ffmpeg (the command line tool) we decided to use this opportunity
to fix some longstanding usability problems, which involves breaking
compatibility. Therefore we have added a new tool named avconv which
is based on ffmpeg, but has a different (hopefully more powerful and
easier to use) syntax for some options. ffmpeg will be kept in its
current state for some time, so no scripts or frontends using it will
break. However it will not be developed further.
Differences between avconv and ffmpeg are:
[...]
Note that the avconv interface is not considered stable yet. More
incompatible changes may come in the following weeks. We will announce
here when avconv is stable.
And earlier in 2011:
Mar 18, 2011
We have just pushed another point release from our 0.6 release branch:
Libav 0.6.2. This is another maintenance-only release addressing two
security issues.
From now on, we will be using our new project name libav. But don't
worry, compared to the preceding release 0.6.1, the only functional
changes are the two security fixes for the VC1 and APE decoders. This
means that libav provides a painless drop-in replacement for existing
FFmpeg installations.
Moreover, we are proud to accompany this source release with
executables and libraries for the win32 platform. These binaries
include H.264 encoding using the bundled x264 library. Enjoy!
Distributors and system integrators are encouraged to update and share
their patches against our release branches.
Mar 17, 2011
We have just pushed another point release from our 0.5 release branch:
FFmpeg 0.5.4. This is another maintenance-only release that addresses
a number of security issues.
Distributors and system integrators are encouraged to update and share
their patches against our release branches.
March 13, 2011
We, as a group of FFmpeg developers, have decided to continue
developing FFmpeg under the name Libav. All existing infrastructure
will be transferred to the libav.org domain.
You can update your git repository using the following command:
git remote set-url origin 'git://git.libav.org/libav'
For now we are still reachable over FFmpeg's mailing lists and IRC
channels but we will migrate to libav.org counterparts. For a
transition period both the website and source might still contain
references to FFmpeg. These will disappear over time, except where
historically relevant.
February 24, 2011
FFmpeg development has moved to Git, and the SVN repository is no
longer updated. The SVN repository may be removed in a near future, so
you're recommended to use a Git repository instead.
The last revision committed to SVN was r26402 on 2011-01-19 and
replaced the svn:external libswscale with a standalone copy.
Note that FFmpeg development has in fact moved to a Git repository by now and that there are two Git repositories. See the corresponding projects download page.
ffmpeg
in the list of returned results, then something has gone wrong with your repo manager. For now, I'd suggest installing by building from source. Download from here.