d4e598d57a
git-svn-id: http://webrtc.googlecode.com/svn/trunk@6799 4adac7df-926f-26a2-2b94-8c16560cd09d
234 lines
7.7 KiB
C++
234 lines
7.7 KiB
C++
/*
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* libjingle
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* Copyright 2004 Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "webrtc/base/gunit.h"
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#include "webrtc/base/thread.h"
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#include "talk/session/media/call.h"
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#include "talk/session/media/currentspeakermonitor.h"
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namespace cricket {
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static const uint32 kSsrc1 = 1001;
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static const uint32 kSsrc2 = 1002;
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static const uint32 kMinTimeBetweenSwitches = 10;
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// Due to limited system clock resolution, the CurrentSpeakerMonitor may
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// actually require more or less time between switches than that specified
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// in the call to set_min_time_between_switches. To be safe, we sleep for
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// 90 ms more than the min time between switches before checking for a switch.
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// I am assuming system clocks do not have a coarser resolution than 90 ms.
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static const uint32 kSleepTimeBetweenSwitches = 100;
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class MockCall : public Call {
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public:
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MockCall() : Call(NULL) {}
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void EmitAudioMonitor(const AudioInfo& info) {
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GetAudioSourceProxy()->SignalAudioMonitor(GetAudioSourceProxy(), info);
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}
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};
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class CurrentSpeakerMonitorTest : public testing::Test,
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public sigslot::has_slots<> {
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public:
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CurrentSpeakerMonitorTest() {
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call_ = new MockCall();
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monitor_ = new CurrentSpeakerMonitor(call_->GetAudioSourceProxy(), NULL);
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// Shrink the minimum time betweeen switches to 10 ms so we don't have to
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// slow down our tests.
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monitor_->set_min_time_between_switches(kMinTimeBetweenSwitches);
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monitor_->SignalUpdate.connect(this, &CurrentSpeakerMonitorTest::OnUpdate);
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current_speaker_ = 0;
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num_changes_ = 0;
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monitor_->Start();
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}
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~CurrentSpeakerMonitorTest() {
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delete monitor_;
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delete call_;
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}
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protected:
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MockCall* call_;
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CurrentSpeakerMonitor* monitor_;
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int num_changes_;
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uint32 current_speaker_;
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void OnUpdate(CurrentSpeakerMonitor* monitor, uint32 current_speaker) {
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current_speaker_ = current_speaker;
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num_changes_++;
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}
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};
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static void InitAudioInfo(AudioInfo* info, int input_level, int output_level) {
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info->input_level = input_level;
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info->output_level = output_level;
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}
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TEST_F(CurrentSpeakerMonitorTest, NoActiveStreams) {
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AudioInfo info;
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InitAudioInfo(&info, 0, 0);
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, 0U);
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EXPECT_EQ(num_changes_, 0);
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}
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TEST_F(CurrentSpeakerMonitorTest, MultipleActiveStreams) {
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AudioInfo info;
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InitAudioInfo(&info, 0, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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// No speaker recognized because the initial sample is treated as possibly
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// just noise and disregarded.
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EXPECT_EQ(current_speaker_, 0U);
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EXPECT_EQ(num_changes_, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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}
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// See: https://code.google.com/p/webrtc/issues/detail?id=2409
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TEST_F(CurrentSpeakerMonitorTest, DISABLED_RapidSpeakerChange) {
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AudioInfo info;
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InitAudioInfo(&info, 0, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, 0U);
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EXPECT_EQ(num_changes_, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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info.active_streams.push_back(std::make_pair(kSsrc1, 9));
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info.active_streams.push_back(std::make_pair(kSsrc2, 1));
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call_->EmitAudioMonitor(info);
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// We expect no speaker change because of the rapid change.
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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}
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TEST_F(CurrentSpeakerMonitorTest, SpeakerChange) {
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AudioInfo info;
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InitAudioInfo(&info, 0, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, 0U);
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EXPECT_EQ(num_changes_, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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// Wait so the changes don't come so rapidly.
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rtc::Thread::SleepMs(kSleepTimeBetweenSwitches);
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info.active_streams.push_back(std::make_pair(kSsrc1, 9));
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info.active_streams.push_back(std::make_pair(kSsrc2, 1));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, kSsrc1);
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EXPECT_EQ(num_changes_, 2);
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}
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TEST_F(CurrentSpeakerMonitorTest, InterwordSilence) {
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AudioInfo info;
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InitAudioInfo(&info, 0, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, 0U);
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EXPECT_EQ(num_changes_, 0);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 7));
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call_->EmitAudioMonitor(info);
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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// Wait so the changes don't come so rapidly.
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rtc::Thread::SleepMs(kSleepTimeBetweenSwitches);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 0));
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call_->EmitAudioMonitor(info);
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// Current speaker shouldn't have changed because we treat this as an inter-
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// word silence.
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 0));
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call_->EmitAudioMonitor(info);
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// Current speaker shouldn't have changed because we treat this as an inter-
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// word silence.
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EXPECT_EQ(current_speaker_, kSsrc2);
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EXPECT_EQ(num_changes_, 1);
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info.active_streams.push_back(std::make_pair(kSsrc1, 3));
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info.active_streams.push_back(std::make_pair(kSsrc2, 0));
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call_->EmitAudioMonitor(info);
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// At this point, we should have concluded that SSRC2 stopped speaking.
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EXPECT_EQ(current_speaker_, kSsrc1);
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EXPECT_EQ(num_changes_, 2);
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}
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} // namespace cricket
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