3 ms·

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.

• astrange 6y ago
  Cost is the rate. Acceptability and distortion are the same thing (although the curves are different).
  • pocak 6y ago
    In the article, cost is cpu time, and benefit is file size reduction multiplied by number of times watched.