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A comment on How Facebook encodes videos. Parent comment

Re:How Facebook encodes videos by StavrosK on Sunday April 25, 2021 @09:00PM (#26938258)
Why is that? Isn't 15 mbit to 2 mbit a big enough difference in quality that you'd expect to retain all the good parts?
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Re:How Facebook encodes videos by martinald on Monday April 26, 2021 @05:49AM (#26940858)
Not really - "raw" 1080p video is ~3gbit/sec - so going from 3000 to 15 is a huge amount of data compression.

The problem is when you go from 15 to 2 in my example is that the encoder spends all the time trying to basically encode the artefacts. It really doesn't work well at all.

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Re:How Facebook encodes videos by StavrosK on Monday April 26, 2021 @05:52AM (#26940873)
Hm, that's too bad. Is there a better way to compress already-compressed streams? I find having to do that a lot due to a use case that's not very relevant here.
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