Suppose we have a digital video with 720x1080 frame size at 30 fps frame rate which plays
Question:
Suppose we have a digital video with 720x1080 frame size at 30 fps frame rate which plays for 20 minutes. Assume each pixel is encoded on 8 bits. We need to store it on maximum 2 GBytes storage. The frames are organized into groups (GOPs) of 45 frames each. Each GOP is headed by an I frame and followed by P and B frames. There are at most four B frames between P and I frames.
a) How the GOP stream would look like?
b) How many GOP in 20 min would the camera record? And how many I, P and B frames?
c) What is the compression ratio?
d) What would be the size of the video if I, B and P frames are compressed to 50% of its original size?
e) Assuming I frames compress to 10% of its original size and P frames to 1%, compute the minimal B frame compression ratio needed?
Project Management Achieving Competitive Advantage
ISBN: 978-0133798074
4th edition
Authors: Jeffrey K. Pinto