Quote:
Originally Posted by Asmodian
It is very easy to know how much information raw video data is. Simply the number of pixels, the color depth, and the frame rate.
|
I'd guess this depends on how you define 'information'. If it's pure bytes, then yes I agree with you. But if you use an entropy based definition of information, I'd imagine that it would be irrevocably reduced upon compression using a lossy codec.
In an extreme case, if the codec 'compressed' the video stream by replacing each pixel with a black pixel, then the information content would be zero (even though the number of pixels is the same as the raw video).