Re: [Audacity-devel] [Libav-user] Requesting help to port Audacity to recent FFmpeg

[Benjamin D. <bd...@de...>]

Am Sonntag, den 25.05.2014, 16:37 -0700 schrieb Gale (Audacity Team):
> Re: https://code.google.com/p/audacity/source/detail?r=13135
> 
> @Benjamin: Does this mean that if Audacity is still released with FFmpeg
> support
> enabled, Win/Mac users wanting to use FFmpeg dynamic loading will be
> mandated 
> to find a new FFmpeg installer?  We currently recommend them to use an
> installer 
> for FFmpeg 0.6.2.

Yes, FFmpeg 0.6.2 won't be supported anymore. Neither FFmpeg nor libav
support this version anymore. So we should not invest time to support it
any longer.

> And your commits to support "older" FFmpeg imply support for 0.8 to 2.2.2
> inclusive?

The changes from Michael Niedermayer got Audacity working with FFmpeg
2.2/svn head, but broke support for older versions. The commits to
support older FFmpeg versions are there for making Audacity work with
libav 0.8, but the changes are not enough, yet. The builds still fail on
Ubuntu 12.04 [1].

The ideal plan is to support libav >= 0.8 and FFmpeg >= 1.2 up to recent
svn checkouts of both project. The current status is as follows:

FFmpeg 1.2 - should build (not tested)
FFmpeg 2.1 - should build (not tested)
FFmpeg 2.2 - builds
FFmpeg svn - builds (according to Michael)
libav 0.8 - does not build
libav 9 - builds [2]
libav 10 - does not build IIRC
libav svn - probably the same as libav 10

[1] https://code.launchpad.net/~audacity-team/+recipe/audacity-daily.quantal
[2] https://code.launchpad.net/~audacity-team/+recipe/daily

-- 
Benjamin Drung
Debian & Ubuntu Developer