Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm using ffmpeg to split videos to comply with their length but whenever I upload them it says "failed to convert". I'm using this settings

ffmpeg -i "${file}" -ar 22050 -vcodec libx264 -acodec libmp3lame -ss 00:00:00 -t 00:13:00 -f mp4 "/home/ras/education/${args[0]}_${startingfrom}_Parte_01_04.mp4"

ffmpeg -i "${file}" -ar 22050 -vcodec libx264 -acodec libmp3lame -ss 00:13:00 -f mp4 "/home/ras/education/${args[0]}_${startingfrom}_Parte_02_04.mp4"
and so on...

Thing is I really have tried different codecs but it fails miserably.. tried with -vcodec copy -acodec copy, mjpeg and still don't get it right.. so I'm asking if any users have worked this out.

any help, suggestion, etc is really appreciated, note that I would really like to keep it in command line since there's a good amount to convert, btw if someone has a better title feel free to edit it

share|improve this question

try this:

ffmpeg -i mymovie.mpg -ar 22050 -acodec libmp3lame -ab 32K -r 25 -s 320x240 -vcodec flv -ss 00:00:00 -t 00:13:00 new.flv
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.