Bug#456165: Show stopers for handbreak in debian ?

Fabian Greffrath fabian at greffrath.com
Mon Aug 27 12:58:51 UTC 2012


Hi Niv,

Am 27.08.2012 14:43, schrieb Niv Sardi:
> Awesome, do you need sponsoring ?

No, thank you. Handbrake will be maintained in the pkg-multimedia team 
and we already have plenty of DDs to sponsor uploads. Maybe you are 
also interested to join?

> I haven't built it (it actually failed and it's 6am here), but looking
> through the source I could find reference to a FFAAC codec that seemed
> to use libav's (ffmpeg) implementation. That doesn't work ?

It does and you can explicitely select this codec from a dropdown menu 
if you like, but it's infamous for its "suboptimal" sound quality. We 
still have lame for MP3 encoded sound which would also fit into an MP4 
container.

> That is annoying, and looking at muxmp4.c, not an easy thing to fix.
> is handbreak the only consumer of that library ?

There was gtkpod, but it was fixed meanwhile to use another MP4 
library for the exact same reason. Spontanously, I don't know of any 
other consumer...

> I remember http://code.google.com/p/ffmbc/ is re-licencing ffmpeg from
> lgpl to gpl on the fly. It's not ultra ethical, but I don't know if it's
> illegal to do this with libmp4, maybe we can talk this upstream to get
> it dual-licenced lgpl ?

Our libav package (the same applies to our former ffmpeg package) is 
also already licensed under the GPL instead of LGPL, because it links 
against some GPL'ed libraries. We even had to bump the license version 
to 3, because we use libraries that are licensed under the MPL (mostly 
code from Android - including another AAC encoder, BTW).

I doubt that it's even possible for libmp4v2 upstream to relicense the 
code, because its originally copyrighted by the mpeg4ip project which 
has ceased in the meantime.

> I think it's good enough, I'd say upload to experimental, and then we
> see how we fix it.

Generally I agree, but Rogerio (CC'ed) also has a word to say about 
this. Rogerio?

  - Fabian



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