I followed the directions on this page:

http://vexxhost.com/blog/2007/03/03/ins ... -easy-way/

And when I run this:
php -r 'phpinfo();' | grep ffmpeg

I get this error

PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/modules/ffmpeg.so' - /usr/lib/libavcodec.so.51: undefined symbol: faacDecOpen in Unknown on line 0

Any ideas?

Thanks
Jim