ls -l /usr/share/ffmpeg/
total 156
drwxr-xr-x   2 root root 4096 Apr 30 09:23 ./
drwxr-xr-x 157 root root 4096 Apr 18 05:07 ../
-rw-r--r--   1 root root   50 Apr 30 09:23 libx264-baseline.ffpreset
-rw-r--r--   1 root root  304 Apr 30 09:23 libx264-default.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-faster.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-faster_firstpass.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-fast.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-fast_firstpass.ffpreset
-rw-r--r--   1 root root  322 Apr 30 09:23 libx264-fastfirstpass.ffpreset
-rw-r--r--   1 root root  304 Apr 30 09:23 libx264-hq.ffpreset
-rw-r--r--   1 root root   90 Apr 30 09:23 libx264-ipod320.ffpreset
-rw-r--r--   1 root root  100 Apr 30 09:23 libx264-ipod640.ffpreset
-rw-r--r--   1 root root  273 Apr 30 09:23 libx264-lossless_fast.ffpreset
-rw-r--r--   1 root root  299 Apr 30 09:23 libx264-lossless_max.ffpreset
-rw-r--r--   1 root root  273 Apr 30 09:23 libx264-lossless_medium.ffpreset
-rw-r--r--   1 root root  298 Apr 30 09:23 libx264-lossless_slower.ffpreset
-rw-r--r--   1 root root  287 Apr 30 09:23 libx264-lossless_slow.ffpreset
-rw-r--r--   1 root root  264 Apr 30 09:23 libx264-lossless_ultrafast.ffpreset
-rw-r--r--   1 root root   22 Apr 30 09:23 libx264-main.ffpreset
-rw-r--r--   1 root root  316 Apr 30 09:23 libx264-max.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-medium.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-medium_firstpass.ffpreset
-rw-r--r--   1 root root  293 Apr 30 09:23 libx264-normal.ffpreset
-rw-r--r--   1 root root  326 Apr 30 09:23 libx264-placebo.ffpreset
-rw-r--r--   1 root root  326 Apr 30 09:23 libx264-placebo_firstpass.ffpreset
-rw-r--r--   1 root root  322 Apr 30 09:23 libx264-slower.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-slower_firstpass.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-slow.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-slow_firstpass.ffpreset
-rw-r--r--   1 root root  293 Apr 30 09:23 libx264-slowfirstpass.ffpreset
-rw-r--r--   1 root root  313 Jan 29 16:55 libx264-superfast.ffpreset
-rw-r--r--   1 root root  313 Jan 29 16:55 libx264-superfast_firstpass.ffpreset
-rw-r--r--   1 root root  312 Apr 30 09:23 libx264-ultrafast.ffpreset
-rw-r--r--   1 root root  312 Apr 30 09:23 libx264-ultrafast_firstpass.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-veryfast.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-veryfast_firstpass.ffpreset
-rw-r--r--   1 root root  324 Apr 30 09:23 libx264-veryslow.ffpreset
-rw-r--r--   1 root root  313 Apr 30 09:23 libx264-veryslow_firstpass.ffpreset