Select provider of libav* libraries

[Andreas Cadhalpun]

Hi Stuart,

On 02.05.2015 03:26, Stuart Prescott wrote:
> There are two extra elements to this transition proposal that you have 
> missed: 

Thanks for double-checking my transition proposal.

> * what package will include /usr/bin/av* so that user's existing scripts are 
> not needlessly broken?

We could have a libav-tools-links package (with Provides: libav-tools) built
from src:ffmpeg providing links from av* to ff* binaries and depending on ffmpeg.

> * what about packages that recommend or suggest libav-tools? They have not 
> been included in your previous analysis but need to be to ensure that they 
> are not broken by the proposed changes.

Actually they have been included in my analysis and I found (with codesearch [1])
that most simply support both or don't use the binaries directly and thus
changing the recommends/suggest is not that important. The only one that
requires avconv and recommends libav-tools is python-audioread. It is built
from the same source package as python3-audioread, which was included in my
list of reverse-dependencies of libav-tools.

For completeness:

Reverse recommends of libav-tools:
 * education-desktop-other  no direct use
 * kphotoalbum              supports both
 * python-audioread         drop avconv.patch (see python3-audioread)
 * soundkonverter           supports both
 * vcmi                     no direct use

Reverse suggests of libav-tools:
 * album                    no direct use
 * beets                    uses only ffmpeg already
 * get-iplayer              supports both, already suggests ffmpeg
 * gvb                      no direct use
 * mediathekview            no direct use
 * owncloud                 supports both
 * view3dscene              no direct use

No package dependency relation:
 * cantata                  supports both
 * get-flash-videos         supports both
 * gpodder                  supports both
 * imagemagick              configure check for avconv, but no BD on libav-tools
 * lives                    supports both
 * marble                   supports both
 * mps-youtube              supports both
 * moc                      supports both
 * synfig                   supports both

Best regards,
Andreas

1: https://codesearch.debian.net/perpackage-results/avconv/2/page_0