[Ffmpeg-devel] question

Michel Bardiaux mbardiaux
Wed Apr 25 11:08:39 CEST 2007

N. de Jonge wrote:
> Hi there,
> Can anyone tell me what's going on with the "img_convert" function? It
> seems that Kdenlive stopped working because it relies on the MLT
> framework, which uses FFmpeg, and if I'm guessing correctly, MLT is
> calling for "img_convert", but that has become an undefined symbol.
> Now, someone on #ffmpeg on the Debian Server suggested to me to remove
> the --enable-swscaler option when running configure for FFmpeg, but that
> didn't have any effect.

With the latest svn and a vanilla configure, img_convert is still there:

nm -Bo libavcodec/libavcodec.a | fgrep img_convert
libavcodec/libavcodec.a:imgconvert.o:00000e60 T img_convert
libavcodec/libavcodec.a:imgresample.o:         U img_convert

So you should post the configure command you use, with its output.

But if I understand the plan, it is indeed that img_convert will become 
internal-only, client code being supposed to use sws_scale, which will 
be implemented using img_convert when --enable-swscaler is off (to 
produce an LGPL build).

Michel Bardiaux
R&D Director
T +32 [0] 2 790 29 41
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