From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Fri, 10 Nov 2017 17:23:26 +0000 (+0100)
Subject: Fix an issue where we'd count jitter history from the wrong side.
X-Git-Tag: 1.6.4~2
X-Git-Url: https://git.sesse.net/?p=nageru;a=commitdiff_plain;h=14f5c097303807fa9f63560089f3d96fc330121f

Fix an issue where we'd count jitter history from the wrong side.

Would not only give horribly wrong results, but also consume tons
of CPU power.
---

diff --git a/mixer.cpp b/mixer.cpp
index dc178db..4deba02 100644
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -239,7 +239,7 @@ double JitterHistory::estimate_max_jitter() const
 	if (percentile <= 0.5) {
 		return *next(orders.begin(), elem_idx) * multiplier;
 	} else {
-		return *prev(orders.end(), elem_idx + 1) * multiplier;
+		return *prev(orders.end(), orders.size() - elem_idx) * multiplier;
 	}
 }