Commit 38ff3e32 authored by Paul Wilkins's avatar Paul Wilkins Committed by Yaowu Xu

Rate control adjustment.

Small adjustment to the active Q range calculations.
These changes should slightly extend the available Q range
for KF/GF/ARF and narrow it for other frames.

The results for this change in isolation are broadly positive
for SSIM and average PSNR and slightly up but mixed for opsnr.

derf +0.293% opsnr, +1.286% SSIM
std-hd + 0.528% opsnr, + 1.746% SSIM
yt +0.056% opsnr, +0.457% SSIM
yt-hd -0.147% opsnr, + 0.226% SSIM

Change-Id: If065280342027ecc5d44b49fc1d440dfef041002
parent c4180f8f
......@@ -81,13 +81,13 @@ void vp9_rc_init_minq_luts() {
for (i = 0; i < QINDEX_RANGE; i++) {
const double maxq = vp9_convert_qindex_to_q(i);
kf_low_motion_minq[i] = get_minq_index(maxq, 0.000001, -0.0004, 0.15);
kf_low_motion_minq[i] = get_minq_index(maxq, 0.000001, -0.0004, 0.125);
kf_high_motion_minq[i] = get_minq_index(maxq, 0.000002, -0.0012, 0.50);
gf_low_motion_minq[i] = get_minq_index(maxq, 0.0000015, -0.0009, 0.32);
gf_low_motion_minq[i] = get_minq_index(maxq, 0.0000015, -0.0009, 0.30);
gf_high_motion_minq[i] = get_minq_index(maxq, 0.0000021, -0.00125, 0.50);
afq_low_motion_minq[i] = get_minq_index(maxq, 0.0000015, -0.0009, 0.33);
afq_low_motion_minq[i] = get_minq_index(maxq, 0.0000015, -0.0009, 0.30);
afq_high_motion_minq[i] = get_minq_index(maxq, 0.0000021, -0.00125, 0.55);
inter_minq[i] = get_minq_index(maxq, 0.00000271, -0.00113, 0.75);
inter_minq[i] = get_minq_index(maxq, 0.00000271, -0.00113, 0.90);
}
}
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment