| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "remoting/protocol/webrtc_frame_scheduler.h" |
| |
| #include "base/test/test_simple_task_runner.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "remoting/base/session_options.h" |
| #include "remoting/protocol/webrtc_dummy_video_encoder.h" |
| #include "remoting/protocol/webrtc_frame_scheduler_simple.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/webrtc/modules/desktop_capture/desktop_frame.h" |
| |
| using webrtc::BasicDesktopFrame; |
| using webrtc::DesktopRect; |
| using webrtc::DesktopSize; |
| |
| namespace remoting { |
| namespace protocol { |
| |
| class WebrtcFrameSchedulerTest : public ::testing::Test { |
| public: |
| WebrtcFrameSchedulerTest() |
| : task_runner_(new base::TestSimpleTaskRunner()), |
| task_runner_handle_(task_runner_.get()), |
| now_(base::TimeTicks::Now()) { |
| video_encoder_factory_.reset(new WebrtcDummyVideoEncoderFactory()); |
| scheduler_.reset(new WebrtcFrameSchedulerSimple(SessionOptions())); |
| scheduler_->SetCurrentTimeForTest(now_); |
| scheduler_->Start(video_encoder_factory_.get(), |
| base::Bind(&WebrtcFrameSchedulerTest::CaptureCallback, |
| base::Unretained(this))); |
| } |
| ~WebrtcFrameSchedulerTest() override = default; |
| |
| void CaptureCallback() { capture_callback_called_ = true; } |
| |
| void VerifyCaptureCallbackCalled() { |
| EXPECT_TRUE(capture_callback_called_); |
| capture_callback_called_ = false; |
| } |
| |
| protected: |
| scoped_refptr<base::TestSimpleTaskRunner> task_runner_; |
| base::ThreadTaskRunnerHandle task_runner_handle_; |
| |
| std::unique_ptr<WebrtcDummyVideoEncoderFactory> video_encoder_factory_; |
| std::unique_ptr<WebrtcFrameSchedulerSimple> scheduler_; |
| |
| bool capture_callback_called_ = false; |
| |
| base::TimeTicks now_; |
| }; |
| |
| TEST_F(WebrtcFrameSchedulerTest, UpdateBitrateWhenPending) { |
| auto video_channel_observer = |
| video_encoder_factory_->get_video_channel_state_observer_for_tests(); |
| |
| video_channel_observer->OnKeyFrameRequested(); |
| video_channel_observer->OnTargetBitrateChanged(100); |
| |
| EXPECT_TRUE(task_runner_->HasPendingTask()); |
| task_runner_->RunPendingTasks(); |
| |
| VerifyCaptureCallbackCalled(); |
| |
| video_channel_observer->OnTargetBitrateChanged(1001); |
| |
| // |task_runner_| shouldn't have pending tasks as the scheduler should be |
| // waiting for the previous capture request to complete. |
| EXPECT_FALSE(task_runner_->HasPendingTask()); |
| } |
| |
| TEST_F(WebrtcFrameSchedulerTest, EmptyFrameUpdate_ShouldNotBeSentImmediately) { |
| auto video_channel_observer = |
| video_encoder_factory_->get_video_channel_state_observer_for_tests(); |
| // Needed to avoid DCHECK in OnFrameCaptured(). |
| video_channel_observer->OnTargetBitrateChanged(100); |
| |
| WebrtcVideoEncoder::FrameParams out_params; |
| BasicDesktopFrame frame(DesktopSize(1, 1)); |
| // Initial capture, full frame. |
| frame.mutable_updated_region()->SetRect(DesktopRect::MakeWH(1, 1)); |
| scheduler_->OnFrameCaptured(&frame, &out_params); |
| // Empty frame. |
| frame.mutable_updated_region()->Clear(); |
| bool result = scheduler_->OnFrameCaptured(&frame, &out_params); |
| |
| // Should not be sent, because of throttling of empty frames. |
| EXPECT_FALSE(result); |
| }; |
| |
| TEST_F(WebrtcFrameSchedulerTest, EmptyFrameUpdate_ShouldBeSentAfter200ms) { |
| // Identical to the previous test, except it waits a short amount of time |
| // before the empty frame update. |
| auto video_channel_observer = |
| video_encoder_factory_->get_video_channel_state_observer_for_tests(); |
| video_channel_observer->OnTargetBitrateChanged(100); |
| |
| WebrtcVideoEncoder::FrameParams out_params; |
| BasicDesktopFrame frame(DesktopSize(1, 1)); |
| // Initial capture, full frame. |
| frame.mutable_updated_region()->SetRect(DesktopRect::MakeWH(1, 1)); |
| scheduler_->OnFrameCaptured(&frame, &out_params); |
| // Wait more than 200ms. |
| scheduler_->SetCurrentTimeForTest(now_ + |
| base::TimeDelta::FromMilliseconds(300)); |
| // Empty frame. |
| frame.mutable_updated_region()->Clear(); |
| bool result = scheduler_->OnFrameCaptured(&frame, &out_params); |
| |
| // Empty frames should be sent at the throttled rate. |
| EXPECT_TRUE(result); |
| }; |
| |
| // TODO(sergeyu): Add more unittests. |
| |
| } // namespace protocol |
| } // namespace remoting |