undefined reference to `av_calloc@LIBAVUTIL_52' collect2: error

[PrimozGodec]

Hi.
When I tried to compile (with command ./waf) Essentia (on Ubuntu 14.04), I got this error: /usr/local/lib/libswresample.so: undefined reference to `av_calloc@LIBAVUTIL_52'
collect2: error: ld returned 1 exit status
I already installed ffmpeg library on many different way, but got same error everythime, I tried to compile Essentia.
I konw that this is problem with ffmpeg, but I do not know how to slove this. Has anybody had same problem or anybody know how to solve this?

This is screenshot of my error.

[dbogdanov]

How did you install ffmpeg? You don't need to have libswresample (it seems you have a custom install to /usr/local), Essentia will compile without it just fine. You should go for libav from the official repository.

[PrimozGodec]

First thanks for response.

I download ffmpeg from ffmpeg git repository. Then configure it with
./configure --prefix=/usr/local --enable-gpl --enable-version3 --enable-nonfree --enable-shared --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid
and then build and install it with mak and make install.

I also try to install only libav (with ./configure, then make and make install), but then essentia building stops at 24/301. Must I add some arguments to configure to build libav properly? Do you have some instruction how to install libav properly?

[dbogdanov]

I cannot say exactly the reason now, but the ffmpeg version you install might be newer then the ones currently supported. What is wrong with installing the dependencies the recommended way?

[stevetjoa]

I also have problems with Essentia on Ubuntu 14.04. I think this is the problem: http://askubuntu.com/questions/432542/is-ffmpeg-missing-from-the-official-repositories-in-14-04

I had it working on Ubuntu 12.04; I would be surprised if anyone got Essentia working on 14.04 because of the ffmpeg issue above.

[PrimozGodec]

I solve my problem with this configuration: sudo ./waf configure --mode=release --with-python --with-examples (if I miss --with-cpptests and --with-vamp everything works ok). You may try this.