The key here is the frame_rate value. Assuming your original video file is X and you want your video to play N times faster, you should sent your new frame rate to be (X*N):1 For example, if your video has a frame rate of 25 fps and you want to increase playback by 4 times, you should use 100:1 for your frame_rate value. You can use the same command to create a slow motion movie. If you wanted to slow the video down to about half speed, you would use 12fps or 13fps for a 25 fps movie. You can find the current fps of your video by running
ffmpeg -i [input_file]
What I did to turn a 50 min movie to a ~12 min video:
AddThis just launched a new Labs project, AddThis Follow. Super simple to get setup. You can see I already added it to the side bar of my blog. Allows users to easily follow me and AddThis will provide the analytics on those of you stalking me from my blog. Good stuff.
I’ve been really happy with my recent move over to http://www.linode.com. I was checking out their API and noticed there wasn’t any Java client. I wanted a do a small pet project so I took a couple hours this weekend and wrote a Java client for the API.