Media, Information and Technoculture 1020E Lecture Notes - Lecture 1: Uncompressed Video, Frame Rate, Color Depth
2 Dec 2016
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Average data rate=file size/length in seconds of video. Consider a video that is 100mb and 10 seconds long: Question: what would it"s data rate be? it would be choppy on our cd player. Consider a video that is 100mb and 33 second long, it would play back at. 3mb per second and be fine on our cd player. Note: problems occur not just because of file size but also because of data rate! Lower the frame size of the video. If it was 640 by 480, change it to 320 by 240, less pixels! Lower the frame rate of the video. Changing the frame rate by (say 20 fps to 10fps) will generally the file size. Pick a codec that does higher compression. Quicktime and avi use different codecs so you can pick one that gives better compression. Not popular because video looks best at 24bit color (unless it is a cartoon)
