Whenever I try and sue mplayer it says:
mplayer: relocation error: mplayer: symbol ff_codec_bmp_tags, version LIBAVFORMAT_53 not defined in file libavformat.so.53 with link time reference
What do I do to fix this?
I was having the same problem on 11.10 and here's what solved my problem.
I updated my version installed from the Ubuntu Software Center with the latest build found on the mplayer daily build site (I thought I'd take the risk since it wasn't working anyway).
I added the repository manually in a terminal like this:
then update the versions available
Then I went to the Update Manager GUI (it's in the same menu as where you can shut down your system and is called "Software Up to Date") and selected all the available updates from this source (mplayer-daily).
After that, mplayer worked fine again for me.
This might not be the best way to install updates, I really don't know because I'm pretty much a newbie to Ubuntu, but at least it worked.
Hope this helps someone.