| /* |
| * libjingle |
| * Copyright 2004--2011, Google Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "talk/base/gunit.h" |
| #include "talk/base/thread.h" |
| #include "talk/session/phone/call.h" |
| #include "talk/session/phone/currentspeakermonitor.h" |
| |
| namespace cricket { |
| |
| static const uint32 kSsrc1 = 1001; |
| static const uint32 kSsrc2 = 1002; |
| static const uint32 kMinTimeBetweenSwitches = 10; |
| // Due to limited system clock resolution, the CurrentSpeakerMonitor may |
| // actually require more or less time between switches than that specified |
| // in the call to set_min_time_between_switches. To be safe, we sleep for |
| // 90 ms more than the min time between switches before checking for a switch. |
| // I am assuming system clocks do not have a coarser resolution than 90 ms. |
| static const uint32 kSleepTimeBetweenSwitches = 100; |
| |
| class MockCall : public Call { |
| public: |
| MockCall() : Call(NULL) {} |
| |
| void EmitAudioMonitor(const AudioInfo& info) { |
| SignalAudioMonitor(this, info); |
| } |
| }; |
| |
| class CurrentSpeakerMonitorTest : public testing::Test, |
| public sigslot::has_slots<> { |
| public: |
| CurrentSpeakerMonitorTest() { |
| call_ = new MockCall(); |
| monitor_ = new CurrentSpeakerMonitor(call_, NULL); |
| // Shrink the minimum time betweeen switches to 10 ms so we don't have to |
| // slow down our tests. |
| monitor_->set_min_time_between_switches(kMinTimeBetweenSwitches); |
| monitor_->SignalUpdate.connect(this, &CurrentSpeakerMonitorTest::OnUpdate); |
| current_speaker_ = 0; |
| num_changes_ = 0; |
| monitor_->Start(); |
| } |
| |
| ~CurrentSpeakerMonitorTest() { |
| delete monitor_; |
| delete call_; |
| } |
| |
| protected: |
| MockCall* call_; |
| CurrentSpeakerMonitor* monitor_; |
| int num_changes_; |
| uint32 current_speaker_; |
| |
| void OnUpdate(CurrentSpeakerMonitor* monitor, uint32 current_speaker) { |
| current_speaker_ = current_speaker; |
| num_changes_++; |
| } |
| }; |
| |
| static void InitAudioInfo(AudioInfo* info, int input_level, int output_level) { |
| info->input_level = input_level; |
| info->output_level = output_level; |
| } |
| |
| TEST_F(CurrentSpeakerMonitorTest, NoActiveStreams) { |
| AudioInfo info; |
| InitAudioInfo(&info, 0, 0); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, 0U); |
| EXPECT_EQ(num_changes_, 0); |
| } |
| |
| TEST_F(CurrentSpeakerMonitorTest, MultipleActiveStreams) { |
| AudioInfo info; |
| InitAudioInfo(&info, 0, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| // No speaker recognized because the initial sample is treated as possibly |
| // just noise and disregarded. |
| EXPECT_EQ(current_speaker_, 0U); |
| EXPECT_EQ(num_changes_, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| } |
| |
| TEST_F(CurrentSpeakerMonitorTest, RapidSpeakerChange) { |
| AudioInfo info; |
| InitAudioInfo(&info, 0, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, 0U); |
| EXPECT_EQ(num_changes_, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 9)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 1)); |
| call_->EmitAudioMonitor(info); |
| |
| // We expect no speaker change because of the rapid change. |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| } |
| |
| TEST_F(CurrentSpeakerMonitorTest, SpeakerChange) { |
| AudioInfo info; |
| InitAudioInfo(&info, 0, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, 0U); |
| EXPECT_EQ(num_changes_, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| |
| // Wait so the changes don't come so rapidly. |
| talk_base::Thread::SleepMs(kSleepTimeBetweenSwitches); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 9)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 1)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, kSsrc1); |
| EXPECT_EQ(num_changes_, 2); |
| } |
| |
| TEST_F(CurrentSpeakerMonitorTest, InterwordSilence) { |
| AudioInfo info; |
| InitAudioInfo(&info, 0, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, 0U); |
| EXPECT_EQ(num_changes_, 0); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 7)); |
| call_->EmitAudioMonitor(info); |
| |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| |
| // Wait so the changes don't come so rapidly. |
| talk_base::Thread::SleepMs(kSleepTimeBetweenSwitches); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 0)); |
| call_->EmitAudioMonitor(info); |
| |
| // Current speaker shouldn't have changed because we treat this as an inter- |
| // word silence. |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 0)); |
| call_->EmitAudioMonitor(info); |
| |
| // Current speaker shouldn't have changed because we treat this as an inter- |
| // word silence. |
| EXPECT_EQ(current_speaker_, kSsrc2); |
| EXPECT_EQ(num_changes_, 1); |
| |
| info.active_streams.push_back(std::make_pair(kSsrc1, 3)); |
| info.active_streams.push_back(std::make_pair(kSsrc2, 0)); |
| call_->EmitAudioMonitor(info); |
| |
| // At this point, we should have concluded that SSRC2 stopped speaking. |
| EXPECT_EQ(current_speaker_, kSsrc1); |
| EXPECT_EQ(num_changes_, 2); |
| } |
| |
| } // namespace cricket |