Compile OpenCV with ffMpeg support

Question

I'm having problems compiling OpenCV with ffMpeg support under Debian.

I downloaded new ffMpeg and installed it, downloaded opencv-1.1pre1.tar.gz and unpacked it.

then

./configure --enable-apps --enable-shared --with-ffmpeg --with-gnu-ld --without-quicktime CFLAGS=-I/usr/local/include CPPFLAGS=-I/usr/local/include LDFLAGS=-L/usr/local/lib

ffMpeg checked yes and finally when I make it says

../../../otherlibs/highgui/.libs/libhighgui.so: undefined reference to `img_convert'

Now I've been around the forums and tried various stuff but nothing worked. Can anybody help me get this thing installed?

Answer 1

There were some changes in FFMPEG API after OpenCV 1.1pre1 was released, so OpenCV might not work properly with new FFMPEG. I'd suggest trying older versions. I was using FFMPEG trunk snapshot of 07/2008 without problems.

Answer 2

OpenCV and FFmpeg evolved very much in last months and nowadays its possible to make OpenCV 2.1 work with FFmpeg without much suffering.