maxBitrate

The highest bitrate, in bits per second, of the variant that an adaptive stream plays, or null for no limit. An HLS master playlist offers the same media as several variants, and the backend plays the variant with the highest bitrate within this limit and maxVideoHeight. When no variant fits, it plays the one with the lowest bitrate. The player's own step up to a higher variant never passes this limit either. Media with one variant has no choice to make, so the limit does not apply to it.