I used FFMPEG to extract portion (5 seconds) of a video like this:
ffmpeg -ss 00:30:00 -t 00:00:05 -i original.avi cut1.avi
and also like this:
ffmpeg -ss 1800 -t 5 -i original.avi cut1.avi
But what FFMPEG did was create a file starting at 00:30:00 and included the rest of the file instead of just 5 seconds. So instead of having a 5 second video clip, I now have the whole file except the first 30 minutes.
What went wrong?
I tried this with
mencoder as well -- same result.
Strangely, this worked on OS X....
After rebooting Ubuntu, I found that ffmpeg worked fine. What process was turned off that did this though?