I have always noticed that rewinding a video even for 15 seconds takes a lot more time to buffer in any app than forwarding it even by 1 minute, why is it so?
Isn’t the previous one already loaded and so should appear instantaneously?
In: Technology
Raw video files are suuuper large! About 0.2gb/second at 1080p
so instead of sending the whole image every frame you only send whatever has changed and your device updates just those things instead of everything. As a side effect it’s really easy to jump forward but absurdly hard to jump backwards.
To jump forward your device just has to ask for more changes and apply them.
To jump backwards your device has to ask for the relevant key-frame and everything it needs to apply to it
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