FFMpeg Problem?

Fernando Hernandez · 10-06-2010, 03:27 PM

Every time I try to use ffmpeg to convert some files, I get this error:

ffmpeg: relocation error: /usr/lib/libavcore.so.0: symbol av_default_item_name, version LIBAVUTIL_50 not defined in file libavutil.so.50 with link time reference

What does this mean, and how can I fix it?

Alternatively, is there a way I can open a video in Audacity as an audio track, or possibly export a project from Openshot as a strictly audio file?

frankbell · 10-07-2010, 09:25 PM

Do you have the two files libavcore.so.0 and libavutil.so.50 present on your computer?

I had trouble using ffmpeg to convert some *.ogg files to *.avi files. A member of my LUG suggested using mencoder and that worked. Here's the command:

Code:

mencoder -idx [filename].ogv -ovc lavc -oac mp3lame -o [filename].avi

Don't ask me why. He was the expert. All I know is that it worked.

Raveolution · 10-08-2010, 08:14 PM

Quote:

Originally Posted by Fernando Hernandez

Every time I try to use ffmpeg to convert some files, I get this error:

ffmpeg: relocation error: /usr/lib/libavcore.so.0: symbol av_default_item_name, version LIBAVUTIL_50 not defined in file libavutil.so.50 with link time reference

What does this mean, and how can I fix it?

Alternatively, is there a way I can open a video in Audacity as an audio track, or possibly export a project from Openshot as a strictly audio file?

Hello!

What operating system are you using? How did you install ffmpeg? Did it come pre-installed or did you compile it?

I'm guessing that you compiled it, and that you will need to remove ffmpeg altogether, along with libavcore, and then recompile them both from source.

I am not assuming you used Fedora/CentOS and yum (which I'm most familiar with) because I cannot find libavcore in any yum repository even though there are libavcore rpms online:
http://rpm.pbone.net/index.php3/stat...libavcore.so.0

Hope this helps you in your investigation...

rohanvr_21 · 10-09-2010, 01:02 PM

Hey I too had issues with ffmpeg, It couldn't load some filters. So I just removed ffmpeg, mplayer, and vlc , and installed all three again. Solved my problem. Im using fedora 13; I did all this from yum.
Hope it helps.