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Re: [libcvd-members] ffmpeg and swscale

From: Edward Rosten
Subject: Re: [libcvd-members] ffmpeg and swscale
Date: Thu, 14 Aug 2008 10:14:59 -0600 (MDT)

On Thu, 14 Aug 2008, Pablo Barrera wrote:


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




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.


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