Bug#618968: Do not use ffmpeg in netgen

[trophime]

On Tue, 2012-11-27 at 15:25 +0100, Anton Gladky wrote:
> Well, there is a list of files in libav, which are also under
> GPL-license [1]. I do not know, whether those files are used
> for building.
> 
> Anton
> 
> [1] http://packages.debian.org/changelogs/pool/main/liba/libav/current/copyright
> 
> 2012/11/27 trophime <christophe.trophime at lncmi.cnrs.fr>:
> > libav

The files from libav used in netgen are :

#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>

It seems that only swscale.h is under GPL
The others are under LGPL.