Comment 0 for bug 1243235

libav demotion:

I would like libav to be demoted to universe in Trusty. It is a package
that takes considerable resources to maintain security updates for,
resulting in it being vulnerable in Debian and Ubuntu.

Not only does anything in main currently depend on it, but having it in
main results in split packaging (libav and libav-extras) which puts an
extra burden on maintenance.

It is currently being seeded in supported-desktop-extra.

$ reverse-depends -c main src:libav
No reverse dependencies found

$ reverse-depends -b -c main src:libav
Reverse-Build-Depends
=====================
* alsa-plugins (for libavcodec-dev)
* alsa-plugins (for libavutil-dev)
* strigi (for libpostproc-dev)
* strigi (for libswscale-dev)

strigi:
-------
I don't believe strigi actually needs libpostproc-dev and libswscale-dev.

Here is the current build log with them:

-- checking for module 'libavcodec'
-- package 'libavcodec' not found
-- checking for module 'libavformat'
-- package 'libavformat' not found
-- checking for module 'libavdevice'
-- package 'libavdevice' not found
-- checking for module 'libavutil'
-- found libavutil, version 51.22.1
-- checking for module 'libswscale'
-- found libswscale, version 2.1.0
-- checking for module 'libpostproc'
-- found libpostproc, version 52.0.0
-- Could NOT find FFmpeg (missing: AVCODEC_LIBRARIES AVCODEC_INCLUDE_DIRS AVFORMAT_LIBRARIES AVFORMAT_INCLUDE_DIRS)
** FFmpeg not found. Support for indexing FFMPEG is disabled

Here is the build log after they have been removed:

-- checking for module 'libavcodec'
-- package 'libavcodec' not found
-- checking for module 'libavformat'
-- package 'libavformat' not found
-- checking for module 'libavdevice'
-- package 'libavdevice' not found
-- checking for module 'libavutil'
-- package 'libavutil' not found
-- checking for module 'libswscale'
-- package 'libswscale' not found
-- checking for module 'libpostproc'
-- package 'libpostproc' not found
-- Could NOT find FFmpeg (missing: FFMPEG_LIBRARIES FFMPEG_INCLUDE_DIRS AVCODEC_LIBRARIES AVCODEC_INCLUDE_DIRS AVFORMAT_LIBRARIES AVFORMAT_INCLUDE_DIRS AVUTIL_LIBRARIES AVUTIL_INCLUDE_DIRS SWSCALE_LIBRARIES SWSCALE_INCLUDE_DIRS)
** FFmpeg not found. Support for indexing FFMPEG is disabled

alsa-plugins:
-------------

alsa-plugins needs libavcodec-dev and libavutil-dev for the
libasound2-plugins-extra package in universe.

We have three options:

1- Stop building libasound2-plugins-extra

$ reverse-depends -s libasound2-plugins-extra
No reverse dependencies found

2- Leave libavcodec-dev and libavutil-dev in main (not ideal)
3- Add an alsa-plugins-extras source package