ffmpeg -i sone443engsub.mkv -ss 01:56:51 -t 00:05:00 -c:v libx264 -crf 20 -preset veryfast -c:a aac -b:a 128k sone443_engsub_exclusive_01-56-51_5min.mp4
: Suitability for 1:1, 2:1, and 4:1 roped systems. sone443engsub convert015651 min exclusive