chuck@chuck-desktop:/usr$ ldd $(which ffmpeg)
        linux-gate.so.1 =>  (0xffffe000)
        libavformat.so.51 => not found
        libavcodec.so.51 => not found
        libavutil.so.49 => not found
        libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb7eb0000)
        libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb7d6f000)
        /lib/ld-linux.so.2 (0xb7ef1000)