From 882477f19da6c48c9d2342e48c9acd045196ecdc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Per=20=C3=85hgren?= <peah@webrtc.org>
Date: Tue, 24 Apr 2018 09:42:32 +0200
Subject: [PATCH] Corrected the counter for the filter constraint when the
 filter size changes
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Bug: chromium:834875
Change-Id: I036fe34eef894a8911a4d561fe5b671a8f98b718
Reviewed-on: https://webrtc-review.googlesource.com/71820
Reviewed-by: Alex Loiko <aleloi@webrtc.org>
Commit-Queue: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22992}
---
 modules/audio_processing/aec3/adaptive_fir_filter.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/audio_processing/aec3/adaptive_fir_filter.cc b/modules/audio_processing/aec3/adaptive_fir_filter.cc
index 9bea40bbf1..f44fe3d743 100644
--- a/modules/audio_processing/aec3/adaptive_fir_filter.cc
+++ b/modules/audio_processing/aec3/adaptive_fir_filter.cc
@@ -504,6 +504,9 @@ void AdaptiveFirFilter::ResetFilterBuffersToCurrentSize() {
   H_.resize(current_size_partitions_);
   H2_.resize(current_size_partitions_);
   h_.resize(GetTimeDomainLength(current_size_partitions_));
+  RTC_DCHECK_LT(0, current_size_partitions_);
+  partition_to_constrain_ =
+      std::min(partition_to_constrain_, current_size_partitions_ - 1);
 }
 
 void AdaptiveFirFilter::UpdateSize() {