const REFINE_BITS_PER_PIXEL: f64 = 0.04;Expand description
The bytes a coded buffer holds: the uncompressed picture and some, an upper bound on any
frame.
The frame budget, in bits a pixel, under which radeonsi’s rate control cannot refine a still
screen it says no quantizer of, so the cleanup ends on a key frame (refines). 1080p text,
pixelflux alone, the cleanup through the rate control at 0.004 / 0.008 / 0.016 / 0.03 / 0.12
bits a pixel a frame: H.264 18.0 (60 fps 0.5 Mbit/s) / 30.0-38.2 / 40.1-52.6 / 43.4 / 56.4
dB, HEVC 29.1 / - / 46.2 / 33.1 / -, each the full 10 s at the session’s rate (2.1 MB at 60
fps 2 Mbit/s); a key frame at HELD_KEY_BITS_PER_PIXEL came to 51.5 dB (H.264) and 47.1
(HEVC) on 0.4-0.55 MB.