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've been trying to take an old AVI file I have that has an MPEG4 video with MP3 audio and re-encapsulate it in an MP4 container. The audio was easy enough to figure out (-acodec libfaac), but I don't want to re-encode the video. I've had a number of issues when I've tried with ffmpeg but kept getting errors like [mp4 @ 0x7fe6cc01f200] pts has no value and severe stutter in the resulting videos.

So what I'd like to know is what can I use to re-encapsulate an MPEG4 stream in an AVI file into an MP4 file (preferably on Mac OS X)?

share|improve this question
Please include the full uncut ffmpeg command line output. Also, why do you need it in a different container if the existing one works? – slhck Oct 24 '13 at 11:38
@slhck Lots of non replies lately... – LordNeckbeard Oct 29 '13 at 17:52

Your Answer


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

Browse other questions tagged or ask your own question.