[Vindicis]

Neither am I. It's pretty simple to do though, and the performance of the steps that aren't encoding are a lot quicker as it's mainly just copying the encoded files to an intermediate format, and then concatenating those together.

ffmpeg -i "file.mp4" -ss 01:16 -to 02:16 -c:v libx264 -crf 32 "newFile.mp4"

ffmpeg -i "file.mp4" -ss 02:20 -to 02:45 -c:v libx264 -crf 32 "newFile1.mp4"

ffmpeg -i "newFile.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts temp.ts

ffmpeg -i "newFile1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts temp1.ts

timeout /t 5 /nobreak

ffmpeg -i "concat:temp.ts|temp1.ts" -c copy -bsf:a aac_adtstoasc "Finished.mp4"