Re: [libcvd-members] ffmpeg and swscale

[Edward Rosten]

On Thu, 14 Aug 2008, Pablo Barrera wrote:

> Hi
>
> I am trying to compile CVD in macosx but it seems that my version of ffmpeg 
> is incompatible
>
> Undefined symbols:
> "_img_convert", referenced from:
>     CVD::VFB::RawVideoFileBuffer::read_next_frame()     in videofilebuffer.o
> ld: symbol(s) not found
> collect2: ld returned 1 exit status
> make: *** [libcvd.dylib] Error 1
>
>
> I've read in the archive of the mailing list this is a known issue. Is there 
> any solution available yet? I've tried to fix myself but I lack a lot of 
> knowledge about ffmpeg. Even with the information available at [1] [2] I 
> haven't succeeded. Anyone with more knowledge about this could give some 
> hints about what I should change at videofilebuffer.cc?
>
> Cheers,
>
> Pablo
>
> [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=487643
> [2] http://svn.mplayerhq.hu/ffmpeg/trunk/vhook/watermark.c?r1=6577&r2=6649

Try the latest version of libCVD from CVS. I've updated it to use new 
versions of ffmpeg. You will have to compile ffmpeg with --enable-gpl 
--enable-swscale and compile libCVD with --enable-gpl in order for this 
to work.

I've tested it on 64 bit linux with the current latest SVN version of 
ffmpeg. I'm guessing you have a much older version, since I had to modify 
the code to look for headers in different places. It may work with your 
version.

-Ed