Building issue with ffmpeg

[svebk]

Hi,
I was try to build pangolin but I had some issues with FFMPEG. So this post is not an issue but actually some details on how to get it (almost) work, but I guess this is rather a good place to post this.
I am under Ubuntu 10.04 (64bit) and when I use the package version of ffmpeg I got the following building error:

[ 4%] Building CXX object pangolin/CMakeFiles/pangolin.dir/video.cpp.o
In file included from Pangolin/pangolin/video.cpp:32:
Pangolin/pangolin/ffmpeg.h:47:21: error: pixdesc.h: No such file or directory

When using a more recent version (0.8.10) and after modifying it a bit (http://patches.libav.org/patch/3581/) and changing CMakeCache.txt by adding /usr/local/ffmpeg-0.8.10/include to the ffmpeg include dirs path

AVCODEC_INCLUDE_DIR:PATH=/usr/local/ffmpeg-0.8.10/include/libavcodec;/usr/local/ffmpeg-0.8.10/include
AVCODEC_LIBRARY:FILEPATH=/usr/local/ffmpeg-0.8.10/lib/libavcodec.so
AVFORMAT_INCLUDE_DIR:PATH=/usr/local/ffmpeg-0.8.10/include/libavformat;/usr/local/ffmpeg-0.8.10/include
AVFORMAT_LIBRARY:FILEPATH=/usr/local/ffmpeg-0.8.10/lib/libavformat.so
AVUTIL_INCLUDE_DIR:PATH=/usr/local/ffmpeg-0.8.10/include/libavutil;/usr/local/ffmpeg-0.8.10/include
AVUTIL_LIBRARY:FILEPATH=/usr/local/ffmpeg-0.8.10/lib/libavutil.so

I got:

[ 40%] Building CXX object pangolin/CMakeFiles/pangolin.dir/input_record_repeat.cpp.o
make[2]: *** No rule to make target /usr/local/ffmpeg-0.8.10/lib/libavcodec.so, needed by pangolin/libpangolin.so. Stop.

Indeed there is only a libavcodec.a file in this folder.
So in the folder where the sources of ffmpeg-0.8.10 are, run:
make distclean
./configure --enable-shared --enable-gpl --enable-nonfree --enable-postproc --enable-swscale --enable-pthreads --enable-libx264 --enable-libxvid --enable-libvorbis --enable-libfaac --enable-pic --enable-libopencv --prefix=/usr/local/ffmpeg-0.8.10
make -j8
sudo make install

Adapt prefix folder, enables except --enable-pic --enable-shared which are needed.

I am almost there:
[100%] Building CXX object examples/VBODisplay/CMakeFiles/VBODisplay.dir/main.cpp.o
Linking CXX executable VBODisplay
/usr/bin/ld: cannot find -lcutil_x86_64

This seems related to CUDA.

Cheers

[stevenlovegrove]

Thanks for the info and sorry that this has been a pain for you on 10.04.

[djoubert]

Hi All

Don't know if this will work for you, but I got pangolin going on my system (Ubuntu 10.04 64 bit) by installing the version 4:0.6.2 versions of libavutil-dev (and associated packages) from from the lucidbleed ppa.

Cheers
-D