From 8e6a76194d518c6ed446443797b909d789deb58b Mon Sep 17 00:00:00 2001
From: isheriff <isheriff@chromium.org>
Date: Thu, 29 Sep 2016 05:36:59 -0700
Subject: [PATCH] ProbeController: Limit max probing bitrate

BUG=webrtc:6332

Review-Url: https://codereview.webrtc.org/2352093002
Cr-Commit-Position: refs/heads/master@{#14436}
---
 webrtc/modules/congestion_controller/probe_controller.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/webrtc/modules/congestion_controller/probe_controller.cc b/webrtc/modules/congestion_controller/probe_controller.cc
index e91e06efd5..2e253f1a13 100644
--- a/webrtc/modules/congestion_controller/probe_controller.cc
+++ b/webrtc/modules/congestion_controller/probe_controller.cc
@@ -10,6 +10,7 @@
 
 #include "webrtc/modules/congestion_controller/probe_controller.h"
 
+#include <algorithm>
 #include <initializer_list>
 
 #include "webrtc/base/logging.h"
@@ -31,6 +32,9 @@ constexpr int64_t kMaxWaitingTimeForProbingResultMs = 1000;
 // further probing is disabled.
 constexpr int kExponentialProbingDisabled = 0;
 
+// A limit to prevent probing at excessive bitrates.
+constexpr int kMaxProbingBitrateBps = 10000000;
+
 }  // namespace
 
 ProbeController::ProbeController(PacedSender* pacer, Clock* clock)
@@ -97,6 +101,7 @@ void ProbeController::InitiateProbing(
     int min_bitrate_to_probe_further_bps) {
   bool first_cluster = true;
   for (int bitrate : bitrates_to_probe) {
+    bitrate = std::min(bitrate, kMaxProbingBitrateBps);
     if (first_cluster) {
       pacer_->CreateProbeCluster(bitrate, kProbeDeltasPerCluster + 1);
       first_cluster = false;