Revision history [back]

Hi have you installed suitable codecs!?

if you are in linux you may do the following and install your opencv again:

cd ~
wget http://ffmpeg.org/releases/ffmpeg-0.7-rc1.tar.gz
tar -xvzf ffmpeg-0.7-rc1.tar.gz
cd ffmpeg-0.7-rc1
./configure --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libxvid --enable-x11grab --enable-swscale --enable-shared
make
sudo make install

If you are still concerned about the installation use this: link