ffmpegcommands.preference

i = mp3 from video
copy - audio from video [ -i i -vn -c:a o]
reduce audio bitrate - [-i i ab 96k o]
copy clip = [-i i -ss 13:38 -t 30:13 -c copy o]
video snapshot - [-i i -r 0.1 o]
1080 to 720 - [-i i -vf scale -1:720 o]
animated gif - [-i -r 2 o]
ringtone - [-ss h:m:s -t 00:15]
concat - [-f concat -i file_list.txt -c copy o]
log level [-loglevel panic]
SEEK_AND_COLLECT = "-i i -ss 00:00:14 -vf fps=1 %0d.png"
SEEK_AND_COLLECT_AND_START_NUMBER = "-i i -ss 00:00:14 -vf fps=1 -start_number 123 %0d.png"