pub const CBR_VBV_FRAMES: f64 = 8.0;Expand description
Frames of the target a constant-rate x264 session is given as its buffer where the caller
names no video_vbv_multiplier. x264’s row-level control prices each row against a slice’s
share of the buffer, so in the frame and a half the other encoders take it coded a moving
1080p window on a 2560x1600 screen at half its target: 1.95 Mbit/s of 4 at 30.4 dB, 2.96 in
four frames, 3.52 at 34.6 dB in eight, 3.68 in fifteen, with no latency lost on a LAN (6.2 ms
to draw and decode at 1.5 frames, 5.5 at 8). Eight frames hold a frame’s worst case to 133 ms
of the rate at 60 fps, where fifteen added queue on a slow link for 4% more of the target.