[SCM] FFmpeg packaging branch, master.snapshot, updated. debian/0.6-1-7-g45b6909

[Fabian Greffrath]

Dear Reinhard (I also post to the list because I believe this might be 
of general interest),

I have just reverted one of my most recent commits to the ffmpeg 
master.extra branch (which I consider our current working branch, 
given how stable the current 0.5.x package is), because I have found 
that most of what I intented to do has already been implemented 
(slightly differently, of course) in the ubuntu branch. The changes 
were not distro-specific and Debian could benefit from them as well 
(e.g. conditional enable of libopencore-amr codecs).

I'd like to ask you (and all other readers) to keep the usual work 
flow, i.e. apply non-distro-specific changes first to the Debian 
package and let them then find their way into ubuntu. This helps to 
avoid we accidently implement the same stuff twice (as has happened 
here) and keeps a smaller interdiff between the Debian and ubuntu 
packages.

Speaking of the interdiff, I think there are currently also some 
differences that could be avoided. Let's have a look at 
<http://patches.ubuntu.com/f/ffmpeg/ffmpeg_4:0.6-1ubuntu1.patch>:

Apart from the changelog and the Maintainers field, I think the only 
reasonable differences should be in the Build-Depends and the disabled 
encoders (for documentation purposes, please do only comment out the 
*last* line, as suggested by the comment on the preceding line). The 
other removed confflags (dirac and openjpeg) should be handled by 
cond_enable chacks as well. Why does ubuntu enable runtime-cpudetect 
and Debian not?

Please elaborate and help me keep the difeerences between both 
branches as small as possible.

Cheers,
Fabian