Select provider of libav* libraries

[Stuart Prescott]

Hi Andreas,

> 1: https://wiki.debian.org/Debate/libav-provider/ffmpeg

thanks for this -- it's good to see a summary of where we are.

It would be good if you also include information on:

  * the API stability promise of upstream (do we need a library transition 
each time a minor update is uploaded?)

  * assuming there is an API stability promise within each branch, the 
frequency at which new releases are made that will require transitions

  * the detailed plan on how Debian would get from the current packages to 
these packages. 

The libav→ffmpeg plan is in various places on this and the debian-release 
mailing lists, but it would be good to see it in one place for easy 
reference. I think we need to see a good overview of:

  - what source and binary package names will be uploaded to which releases
  - which binary packages would disappear (and what to do about that)
  - what will be required from maintainers of rdeps
  - what sort of time periods the transition would take
  - the results of the rebuilds you have done
  - (I'd guess a ben file for the transition tracker would be handy too)

I'm aware that the plan is somewhat orthogonal to the actual decision about 
libav providers but I think the feasibility of the plan also informs us 
about the feasibility of making the change and gives confidence that the 
ffmpeg maintainers are aware of the size of the task they are volunteering 
for.

cheers
Stuart

-- 
Stuart Prescott