Requirement:
Install termux from
- play store
- github.com/termux/termux-app latest but require allow install from unknown source
open termux and update
$ pkg upgrade
install ffmpeg
$ pkg install ffmpeg
Allow termux to manage files
$ termux-setup-storage
Target
- every piece has 1 minutes 58 seconds
- resolution low 480
- output h264
- sound mono
command to convert '172967815750944 (1).mp4'
$ ffmpeg -i 172967815750944\ \(1\).mp4 -vf scale=-2:480 -r 25 -c:v libx264 -preset veryfast -crf 28 -ac 1 -c:a aac -b:a 96k -f segment -segment_time 118 -reset_timestamps 1 out_%03d.mp4
this command will create files with name startwing with out_[number].mp4
You can see the files from other applications e.g. photos, files, etc. move it to Movies or Download folder
$ mv out_*.mp4 /storage/emulated/0/Movies/
This is fastest way to split video into smaller size, but you need to write the long command..
