ref: bc066684ca4deff24d02ee56071d731b431bf438
parent: 129e6fe52463d192f6b48f7d42ac4a3a93c61f3b
author: Marco Paniconi <marpan@google.com>
date: Wed Oct 3 11:25:32 EDT 2018
vp8: Increase rate threshold for overshoot-drop Increase the rate threshold for the dropping when overshoot is detected during encoding. This helps to prevent some unneccessary drops for hard content. Change-Id: I258bf33883d46347efd44e1e192cb25c444d05fe
--- a/vp8/encoder/ratectrl.c
+++ b/vp8/encoder/ratectrl.c
@@ -1474,7 +1474,7 @@
// QP threshold: only allow dropping if we are not close to qp_max.
int thresh_qp = 3 * cpi->worst_quality >> 2;
// Rate threshold, in bytes.
- int thresh_rate = 2 * (cpi->av_per_frame_bandwidth >> 3);
+ int thresh_rate = 3 * (cpi->av_per_frame_bandwidth >> 3);
// Threshold for the average (over all macroblocks) of the pixel-sum
// residual error over 16x16 block.
int thresh_pred_err_mb = (200 << 4);