This can be done with a simple shell script, in this case a Bash script. If you have a whitespace-delimited file as input, which contains the output file name, the start timestamp and the end timestamp, e.g.:
$ cat cuts.txt
foo.mp4 00:00:00 00:00:01
bar.mp4 00:01:20 00:02:00
Then read this with a simple loop and construct your ffmpeg command:
while read -r filename start end; do
ffmpeg -i "input.mp4" -ss "$start" -to "$end" -c copy "$filename"
done < cuts.txt
This just cuts the bitstream without encoding –
-c copy is a shorthand for
-vcodec copy -acodec copy (and it copies subtitles as well). You can specify a video encoder (e.g.
-c:v libx264) and an audio encoder (e.g.,
-c:a aac -b:a 192k) to re-encode the video.
A more portable, but basic version with Python 3:
with open("cuts.txt") as f:
for line in f.readlines():
filename, start, end = line.strip().split(' ')
cmd = ["ffmpeg", "-i", "input.mp4", "-ss", start, "-to", end, "-c", "copy", filename]
Note: If you run this on Windows, you should add ffmpeg to your PATH, or specify its full path like