Explain why, in general, the longer GOP structure allows more file size compression. ( Hint : Consider the number of I-frames in a GOP structure and the different levels of compression for different frame types.)
What will be an ideal response?
Each GOP has one I frame and an I frame is the least compressed frame. Longer GOP structure means that there are less GOPs in a video. This means that there are less I frames in a video. Thus the file size is smaller with a longer GOP.
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