When I am using the below command then getting the error "File for preset 'slower' not found"
/usr/bin/ffmpeg -i mainFile.mp4 -ss 00:03:22 -t 00:00:22 -acodec libfaac -vcodec libx264 -vpre slower -crf 18 -aspect 16:9 -r 25 -b 3000k -vpre main -level 21 -refs 2 -threads 0 spliteFile.mp4
But when I am trying basic ffmpeg command then it is working fine.
/usr/bin/ffmpeg -i mainFile.mp4 -ss 0 -t 100 spliteFile.mp4
Please suggest. I think I am missing the parameter? thanks in advance....