Corran wrote:Zarxrax wrote:Corran wrote:btw, framerate doesn't really matter much when you are compressing with an inter-frame codec such as xvid or x264 as the changes between the frames get smaller the as the framerate increases. The less change, then the less data that needs to be stored per frame. In the end, with the right settings, you can get a 60fps video down to roughly around the same filesize as a 30fps video without sacrificing much quality.
Wrong. While one would think that to be the case, my experience shows that doubling the framerate will nearly double the filesize, or at least by 50% or so. Of course it varies depending on the content and the type of motion.
hmm... A while back I was discussing this with Nostromo and re-encoded his video for him as an example. Granted, I was only trying to show him he could get it under 100MB and don't remember if I actually tried to encode a 30fps version of it at the same time. I shouldn't have made it sound like I was spouting fact...
For true 60 fps video where a great majority of the pixels are changed from frame to frame (or else why bother), it should be roughly double the file size of an equivalent 30 fps video.
That being said, unless it's on the long side of length (>5 minutes), a 720/30p H.264 video should easily come in under 100 MB (unless the audio is uncompressed

