FFmpeg and libav

Romain Bouqueau romain.bouqueau.pro at gmail.com
Fri Sep 27 11:25:21 UTC 2013


Hi Reinhard,

My advise would be to focus on Libav, as FFmpeg closely tracks
>>  "upstream", and claims to ensures API/ABI compatibility. Michael
>> Niedermayer offered repeatedly in the past to merge every development
>> of Libav into FFmpeg, so that should solve your struggle for good.
>>
>> Feel free to drop by in #libav-devel if you find some API that is hard
>> to use or otherwise difficult. There are many nice guys that are happy
>> listen to your concerns!
>>
>
> Ok, we'll try that. Thanks for the feedback.
>

I took time to make tests with the latest libav this morning, both trunk
and release/9 branch.

The trunk wouldn't compile. Probably some API changes for the next release,
that's ok.

'release/9' is known to compile with GPAC because you and Alessio made us a
bug report in January:
* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=693159
* https://sourceforge.net/p/gpac/bugs/265/
I can confirm GPAC still builds with the Debian unstable libav source:
* http://ftp.de.debian.org/debian/pool/main/liba/libav/libav_9.8.orig.tar.xz,
taken from http://packages.debian.org/source/unstable/libav

The latest 'release/9' doesn't compile. So there seem to be an API breakage
in the release/9 branch of libav.

I made the same tests with FFmpeg. Short story: every version builds.

I'm not judging or comparing the quality of both alternatives. But I
mention that libav gives us much more headache in term of API.

Regards,

Romain
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