How Facebook encodes videos

Re:How Facebook encodes videos by astrange on Sunday April 25, 2021 @09:51PM (#26938474)

I find it odd that this is a kind of mathematical article but doesn’t use the existing terms in codec literature - why does it say “cost/benefit” instead of “rate/distortion”?

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Re:How Facebook encodes videos by not2b on Sunday April 25, 2021 @10:52PM (#26938776)

Because FB doesn't care about rate or distortion, they care about cost to them and whether the result meets some minimum standard of acceptability.

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Re:How Facebook encodes videos by astrange on Sunday April 25, 2021 @10:58PM (#26938795)

Cost is the rate. Acceptability and distortion are the same thing (although the curves are different).

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Re:How Facebook encodes videos by pocak on Monday April 26, 2021 @02:49AM (#26939951)

In the article, cost is cpu time, and benefit is file size reduction multiplied by number of times watched.

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