Tweaked version of BBR for WebRTC.

webrtc/modules/remote_bitrate_estimator/bwe_simulations.cc

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 104 matching lines @@
 
   choke.set_capacity_kbps(1000);
   choke.set_max_delay_ms(500);
   RunFor(60 * 1000);
   choke.set_capacity_kbps(500);
   RunFor(60 * 1000);
   choke.set_capacity_kbps(1000);
   RunFor(60 * 1000);
 }
 
+TEST_P(BweSimulation, SimulationsCompiled) {
+  AdaptiveVideoSource source(0, 30, 300, 0, 0);
+  PacedVideoSender sender(&uplink_, &source, GetParam());
+  int zero = 0;
+  DelayFilter delay(&uplink_, CreateFlowIds(&zero, 1));
+  delay.SetOneWayDelayMs(100);
+  ChokeFilter filter(&uplink_, 0);
+  RateCounterFilter counter(&uplink_, 0, "Receiver", bwe_names[GetParam()]);
+  PacketReceiver receiver(&uplink_, 0, GetParam(), true, true);
+  filter.set_max_delay_ms(500);
+  filter.set_capacity_kbps(1000);
+  RunFor(60 * 1000);
+  filter.set_capacity_kbps(500);
+  RunFor(50 * 1000);
+  filter.set_capacity_kbps(1000);
+  RunFor(60 * 1000);
+  filter.set_capacity_kbps(200);
+  RunFor(60 * 1000);
+  filter.set_capacity_kbps(50);
+  RunFor(60 * 1000);
+  filter.set_capacity_kbps(200);
+  RunFor(60 * 1000);
+  filter.set_capacity_kbps(500);
+  RunFor(60 * 1000);
+  filter.set_capacity_kbps(300);
+  RunFor(60 * 1000);
+  filter.set_capacity_kbps(1000);
+  RunFor(60 * 1000);
+  const int kStartingCapacityKbps = 150;
+  const int kEndingCapacityKbps = 1500;
+  const int kStepKbps = 5;
+  const int kStepTimeMs = 1000;
+  for (int i = kStartingCapacityKbps; i <= kEndingCapacityKbps;
+       i += kStepKbps) {
+    filter.set_capacity_kbps(i);
+    RunFor(kStepTimeMs);
+  }
+  for (int i = kEndingCapacityKbps; i >= kStartingCapacityKbps;
+       i -= kStepKbps) {
+    filter.set_capacity_kbps(i);
+    RunFor(kStepTimeMs);
+  }
+  filter.set_capacity_kbps(150);
+  RunFor(120 * 1000);
+  filter.set_capacity_kbps(500);
+  RunFor(60 * 1000);
+}
+
 TEST_P(BweSimulation, PacerChoke1000kbps500kbps1000kbps) {
   AdaptiveVideoSource source(0, 30, 300, 0, 0);
   PacedVideoSender sender(&uplink_, &source, GetParam());
+  const int kFlowId = 0;
+  // CreateFlowIds() doesn't support passing int as a flow id, so we pass
+  // reference instead.

[philipel, 2017/08/18 11:22:14]

pass pointer 

[gnish1, 2017/08/18 11:48:42]

Done.

+  DelayFilter delay(&uplink_, CreateFlowIds(&kFlowId, 1));
+  delay.SetOneWayDelayMs(100);
   ChokeFilter filter(&uplink_, 0);
   RateCounterFilter counter(&uplink_, 0, "Receiver", bwe_names[GetParam()]);
   PacketReceiver receiver(&uplink_, 0, GetParam(), true, true);
   filter.set_capacity_kbps(1000);
   filter.set_max_delay_ms(500);
   RunFor(60 * 1000);
   filter.set_capacity_kbps(500);
   RunFor(60 * 1000);
   filter.set_capacity_kbps(1000);
   RunFor(60 * 1000);
@@ skipping 117 matching lines @@
   for (int i = kStartingCapacityKbps; i >= kEndingCapacityKbps;
        i += kStepKbps) {
     filter.set_capacity_kbps(i);
     RunFor(kStepTimeMs);
   }
 }
 
 TEST_P(BweSimulation, PacerGoogleWifiTrace3Mbps) {
   PeriodicKeyFrameSource source(0, 30, 300, 0, 0, 1000);
   PacedVideoSender sender(&uplink_, &source, GetParam());
+  int kFlowId = 0;
+  DelayFilter delay(&uplink_, CreateFlowIds(&kFlowId, 1));

[philipel, 2017/08/18 11:22:14]

Add comment here as well.

[gnish1, 2017/08/18 11:48:42]

Done.

+  delay.SetOneWayDelayMs(100);
   RateCounterFilter counter1(&uplink_, 0, "sender_output",
                              bwe_names[GetParam()]);
   TraceBasedDeliveryFilter filter(&uplink_, 0, "link_capacity");
   filter.set_max_delay_ms(500);
   RateCounterFilter counter2(&uplink_, 0, "Receiver", bwe_names[GetParam()]);
   PacketReceiver receiver(&uplink_, 0, GetParam(), true, true);
   ASSERT_TRUE(filter.Init(test::ResourcePath("google-wifi-3mbps", "rx")));
   RunFor(300 * 1000);
 }
 
@@ skipping 210 matching lines @@
   RunChoke(GetParam(), capacities_kbps);
 
   BweTest gcc_test(false);
   gcc_test.RunChoke(kSendSideEstimator, capacities_kbps);
 }
 
 }  // namespace bwe
 }  // namespace testing
 }  // namespace webrtc