Move talk/media to webrtc/media

talk/media/base/videoadapter_unittest.cc

Index: talk/media/base/videoadapter_unittest.cc
diff --git a/talk/media/base/videoadapter_unittest.cc b/talk/media/base/videoadapter_unittest.cc
deleted file mode 100644
index a8d243ecde74b9dc730c9fa13f253a58ec6727b9..0000000000000000000000000000000000000000
--- a/talk/media/base/videoadapter_unittest.cc
+++ /dev/null
@@ -1,1307 +0,0 @@
-/*
- * libjingle
- * Copyright 2010 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.
- */
-
-// If we don't have a WebRtcVideoFrame, just skip all of these tests.
-#if defined(HAVE_WEBRTC_VIDEO)
-#include <limits.h>  // For INT_MAX
-#include <string>
-#include <vector>
-
-#include "talk/media/base/fakevideocapturer.h"
-#include "talk/media/base/mediachannel.h"
-#include "talk/media/base/testutils.h"
-#include "talk/media/base/videoadapter.h"
-#include "webrtc/base/gunit.h"
-#include "webrtc/base/logging.h"
-#include "webrtc/base/sigslot.h"
-
-namespace cricket {
-
-namespace {
-static const uint32_t kWaitTimeout = 3000U;       // 3 seconds.
-static const uint32_t kShortWaitTimeout = 1000U;  // 1 second.
-  void UpdateCpuLoad(CoordinatedVideoAdapter* adapter,
-    int current_cpus, int max_cpus, float process_load, float system_load) {
-    adapter->set_cpu_load_min_samples(1);
-    adapter->OnCpuLoadUpdated(current_cpus, max_cpus,
-                              process_load, system_load);
-  }
-}
-
-class VideoAdapterTest : public testing::Test {
- public:
-  virtual void SetUp() {
-    capturer_.reset(new FakeVideoCapturer);
-    capture_format_ = capturer_->GetSupportedFormats()->at(0);
-    capture_format_.interval = VideoFormat::FpsToInterval(50);
-    adapter_.reset(new VideoAdapter());
-    adapter_->SetInputFormat(capture_format_);
-
-    listener_.reset(new VideoCapturerListener(adapter_.get()));
-    capturer_->SignalFrameCaptured.connect(
-        listener_.get(), &VideoCapturerListener::OnFrameCaptured);
-  }
-
-  virtual void TearDown() {
-    // Explicitly disconnect the VideoCapturer before to avoid data races
-    // (frames delivered to VideoCapturerListener while it's being destructed).
-    capturer_->SignalFrameCaptured.disconnect_all();
-  }
-
- protected:
-  class VideoCapturerListener: public sigslot::has_slots<> {
-   public:
-    struct Stats {
-      int captured_frames;
-      int dropped_frames;
-      bool last_adapt_was_no_op;
-
-      int adapted_width;
-      int adapted_height;
-    };
-
-    explicit VideoCapturerListener(VideoAdapter* adapter)
-        : video_adapter_(adapter),
-          captured_frames_(0),
-          dropped_frames_(0),
-          last_adapt_was_no_op_(false) {
-    }
-
-    void OnFrameCaptured(VideoCapturer* capturer,
-                         const CapturedFrame* captured_frame) {
-      rtc::CritScope lock(&crit_);
-      const int in_width = captured_frame->width;
-      const int in_height = abs(captured_frame->height);
-      const VideoFormat adapted_format =
-          video_adapter_->AdaptFrameResolution(in_width, in_height);
-      if (!adapted_format.IsSize0x0()) {
-        adapted_format_ = adapted_format;
-        last_adapt_was_no_op_ = (in_width == adapted_format.width &&
-                                 in_height == adapted_format.height);
-      } else {
-        ++dropped_frames_;
-      }
-      ++captured_frames_;
-    }
-
-    Stats GetStats() {
-      rtc::CritScope lock(&crit_);
-      Stats stats;
-      stats.captured_frames = captured_frames_;
-      stats.dropped_frames = dropped_frames_;
-      stats.last_adapt_was_no_op = last_adapt_was_no_op_;
-      if (!adapted_format_.IsSize0x0()) {
-        stats.adapted_width = adapted_format_.width;
-        stats.adapted_height = adapted_format_.height;
-      } else {
-        stats.adapted_width = stats.adapted_height = -1;
-      }
-
-      return stats;
-    }
-
-   private:
-    rtc::CriticalSection crit_;
-    VideoAdapter* video_adapter_;
-    VideoFormat adapted_format_;
-    int captured_frames_;
-    int dropped_frames_;
-    bool last_adapt_was_no_op_;
-  };
-
-  class CpuAdapterListener: public sigslot::has_slots<> {
-   public:
-    CpuAdapterListener() : received_cpu_signal_(false) {}
-    void OnCpuAdaptationSignalled() { received_cpu_signal_ = true; }
-    bool received_cpu_signal() { return received_cpu_signal_; }
-   private:
-    bool received_cpu_signal_;
-  };
-
-  void VerifyAdaptedResolution(const VideoCapturerListener::Stats& stats,
-                               int width,
-                               int height) {
-    EXPECT_EQ(width, stats.adapted_width);
-    EXPECT_EQ(height, stats.adapted_height);
-  }
-
-  rtc::scoped_ptr<FakeVideoCapturer> capturer_;
-  rtc::scoped_ptr<VideoAdapter> adapter_;
-  rtc::scoped_ptr<VideoCapturerListener> listener_;
-  VideoFormat capture_format_;
-};
-
-
-// Test adapter remembers exact pixel count
-TEST_F(VideoAdapterTest, AdaptNumPixels) {
-  adapter_->SetOutputNumPixels(123456);
-  EXPECT_EQ(123456, adapter_->GetOutputNumPixels());
-}
-
-// Test adapter is constructed but not activated. Expect no frame drop and no
-// resolution change.
-TEST_F(VideoAdapterTest, AdaptInactive) {
-  // Output resolution is not set.
-  EXPECT_EQ(INT_MAX, adapter_->GetOutputNumPixels());
-
-  // Call Adapter with some frames.
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify no frame drop and no resolution change.
-  VideoCapturerListener::Stats stats = listener_->GetStats();
-  EXPECT_GE(stats.captured_frames, 10);
-  EXPECT_EQ(0, stats.dropped_frames);
-  VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height);
-}
-
-// Do not adapt the frame rate or the resolution. Expect no frame drop and no
-// resolution change.
-TEST_F(VideoAdapterTest, AdaptNothing) {
-  adapter_->SetOutputFormat(capture_format_);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify no frame drop and no resolution change.
-  VideoCapturerListener::Stats stats = listener_->GetStats();
-  EXPECT_GE(stats.captured_frames, 10);
-  EXPECT_EQ(0, stats.dropped_frames);
-  VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height);
-  EXPECT_TRUE(stats.last_adapt_was_no_op);
-}
-
-TEST_F(VideoAdapterTest, AdaptZeroInterval) {
-  VideoFormat format = capturer_->GetSupportedFormats()->at(0);
-  format.interval = 0;
-  adapter_->SetInputFormat(format);
-  adapter_->SetOutputFormat(format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify no crash and that frames aren't dropped.
-  VideoCapturerListener::Stats stats = listener_->GetStats();
-  EXPECT_GE(stats.captured_frames, 10);
-  EXPECT_EQ(0, stats.dropped_frames);
-  VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height);
-}
-
-// Adapt the frame rate to be half of the capture rate at the beginning. Expect
-// the number of dropped frames to be half of the number the captured frames.
-TEST_F(VideoAdapterTest, AdaptFramerate) {
-  VideoFormat request_format = capture_format_;
-  request_format.interval *= 2;
-  adapter_->SetOutputFormat(request_format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify frame drop and no resolution change.
-  VideoCapturerListener::Stats stats = listener_->GetStats();
-  EXPECT_GE(stats.captured_frames, 10);
-  EXPECT_EQ(stats.captured_frames / 2, stats.dropped_frames);
-  VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height);
-}
-
-// Adapt the frame rate to be half of the capture rate at the beginning. Expect
-// the number of dropped frames to be half of the number the captured frames.
-TEST_F(VideoAdapterTest, AdaptFramerateVariable) {
-  VideoFormat request_format = capture_format_;
-  request_format.interval = request_format.interval * 3 / 2;
-  adapter_->SetOutputFormat(request_format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 30; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify frame drop and no resolution change.
-  VideoCapturerListener::Stats stats = listener_->GetStats();
-  EXPECT_GE(stats.captured_frames, 30);
-  // Verify 2 / 3 kept (20) and 1 / 3 dropped (10).
-  EXPECT_EQ(stats.captured_frames * 1 / 3, stats.dropped_frames);
-  VerifyAdaptedResolution(stats, capture_format_.width, capture_format_.height);
-}
-
-// Adapt the frame rate to be half of the capture rate after capturing no less
-// than 10 frames. Expect no frame dropped before adaptation and frame dropped
-// after adaptation.
-TEST_F(VideoAdapterTest, AdaptFramerateOntheFly) {
-  VideoFormat request_format = capture_format_;
-  adapter_->SetOutputFormat(request_format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify no frame drop before adaptation.
-  EXPECT_EQ(0, listener_->GetStats().dropped_frames);
-
-  // Adapat the frame rate.
-  request_format.interval *= 2;
-  adapter_->SetOutputFormat(request_format);
-
-  for (int i = 0; i < 20; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify frame drop after adaptation.
-  EXPECT_GT(listener_->GetStats().dropped_frames, 0);
-}
-
-// Set a very high output pixel resolution. Expect no resolution change.
-TEST_F(VideoAdapterTest, AdaptFrameResolutionHighLimit) {
-  adapter_->SetOutputNumPixels(INT_MAX);
-  VideoFormat adapted_format = adapter_->AdaptFrameResolution(
-      capture_format_.width, capture_format_.height);
-  EXPECT_EQ(capture_format_.width, adapted_format.width);
-  EXPECT_EQ(capture_format_.height, adapted_format.height);
-
-  adapter_->SetOutputNumPixels(987654321);
-  adapted_format = capture_format_,
-  adapter_->AdaptFrameResolution(capture_format_.width, capture_format_.height);
-  EXPECT_EQ(capture_format_.width, adapted_format.width);
-  EXPECT_EQ(capture_format_.height, adapted_format.height);
-}
-
-// Adapt the frame resolution to be the same as capture resolution. Expect no
-// resolution change.
-TEST_F(VideoAdapterTest, AdaptFrameResolutionIdentical) {
-  adapter_->SetOutputFormat(capture_format_);
-  const VideoFormat adapted_format = adapter_->AdaptFrameResolution(
-      capture_format_.width, capture_format_.height);
-  EXPECT_EQ(capture_format_.width, adapted_format.width);
-  EXPECT_EQ(capture_format_.height, adapted_format.height);
-}
-
-// Adapt the frame resolution to be a quarter of the capture resolution. Expect
-// resolution change.
-TEST_F(VideoAdapterTest, AdaptFrameResolutionQuarter) {
-  VideoFormat request_format = capture_format_;
-  request_format.width /= 2;
-  request_format.height /= 2;
-  adapter_->SetOutputFormat(request_format);
-  const VideoFormat adapted_format = adapter_->AdaptFrameResolution(
-      request_format.width, request_format.height);
-  EXPECT_EQ(request_format.width, adapted_format.width);
-  EXPECT_EQ(request_format.height, adapted_format.height);
-}
-
-// Adapt the pixel resolution to 0. Expect frame drop.
-TEST_F(VideoAdapterTest, AdaptFrameResolutionDrop) {
-  adapter_->SetOutputNumPixels(0);
-  EXPECT_TRUE(
-      adapter_->AdaptFrameResolution(capture_format_.width,
-                                     capture_format_.height).IsSize0x0());
-}
-
-// Adapt the frame resolution to be a quarter of the capture resolution at the
-// beginning. Expect resolution change.
-TEST_F(VideoAdapterTest, AdaptResolution) {
-  VideoFormat request_format = capture_format_;
-  request_format.width /= 2;
-  request_format.height /= 2;
-  adapter_->SetOutputFormat(request_format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify no frame drop and resolution change.
-  VideoCapturerListener::Stats stats = listener_->GetStats();
-  EXPECT_EQ(0, stats.dropped_frames);
-  VerifyAdaptedResolution(stats, request_format.width, request_format.height);
-}
-
-// Adapt the frame resolution to half width. Expect resolution change.
-TEST_F(VideoAdapterTest, AdaptResolutionNarrow) {
-  VideoFormat request_format = capture_format_;
-  request_format.width /= 2;
-  adapter_->set_scale_third(true);
-  adapter_->SetOutputFormat(request_format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify resolution change.
-  VerifyAdaptedResolution(listener_->GetStats(),
-                          capture_format_.width * 2 / 3,
-                          capture_format_.height * 2 / 3);
-}
-
-// Adapt the frame resolution to half height. Expect resolution change.
-TEST_F(VideoAdapterTest, AdaptResolutionWide) {
-  VideoFormat request_format = capture_format_;
-  request_format.height /= 2;
-  adapter_->set_scale_third(true);
-  adapter_->SetOutputFormat(request_format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify resolution change.
-  VerifyAdaptedResolution(listener_->GetStats(),
-                          capture_format_.width * 2 / 3,
-                          capture_format_.height * 2 / 3);
-}
-
-// Adapt the frame resolution to be a quarter of the capture resolution after
-// capturing no less than 10 frames. Expect no resolution change before
-// adaptation and resolution change after adaptation.
-TEST_F(VideoAdapterTest, AdaptResolutionOnTheFly) {
-  VideoFormat request_format = capture_format_;
-  adapter_->SetOutputFormat(request_format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify no resolution change before adaptation.
-  VerifyAdaptedResolution(
-      listener_->GetStats(), request_format.width, request_format.height);
-
-  // Adapt the frame resolution.
-  request_format.width /= 2;
-  request_format.height /= 2;
-  adapter_->SetOutputFormat(request_format);
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify resolution change after adaptation.
-  VerifyAdaptedResolution(
-      listener_->GetStats(), request_format.width, request_format.height);
-}
-
-// Drop all frames.
-TEST_F(VideoAdapterTest, DropAllFrames) {
-  VideoFormat format;  // with resolution 0x0.
-  adapter_->SetOutputFormat(format);
-  EXPECT_EQ(CS_RUNNING, capturer_->Start(capture_format_));
-  for (int i = 0; i < 10; ++i)
-    capturer_->CaptureFrame();
-
-  // Verify all frames are dropped.
-  VideoCapturerListener::Stats stats = listener_->GetStats();
-  EXPECT_GE(stats.captured_frames, 10);
-  EXPECT_EQ(stats.captured_frames, stats.dropped_frames);
-}
-
-TEST(CoordinatedVideoAdapterTest, TestCoordinatedWithoutCpuAdaptation) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(false);
-
-  VideoFormat format(640, 400, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  adapter.set_scale_third(true);
-  EXPECT_EQ(format, adapter.input_format());
-  EXPECT_TRUE(adapter.output_format().IsSize0x0());
-
-  // Server format request 640x400.
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Server format request 1280x720, higher than input. Adapt nothing.
-  format.width = 1280;
-  format.height = 720;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Cpu load is high, but cpu adaptation is disabled. Adapt nothing.
-  adapter.OnCpuLoadUpdated(1, 1, 0.99f, 0.99f);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Encoder resolution request: downgrade with different size. Adapt nothing.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Encoder resolution request: downgrade.
-  adapter.OnEncoderResolutionRequest(640, 400,
-                                     CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Encoder resolution request: downgrade. But GD off. Adapt nothing.
-  adapter.set_gd_adaptation(false);
-  adapter.OnEncoderResolutionRequest(480, 300,
-                                     CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-  adapter.set_gd_adaptation(true);
-
-  // Encoder resolution request: downgrade.
-  adapter.OnEncoderResolutionRequest(480, 300,
-                                     CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Encoder resolution request: keep. Adapt nothing.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::KEEP);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Encoder resolution request: upgrade.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Server format request 0x0.
-  format.width = 0;
-  format.height = 0;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_TRUE(adapter.output_format().IsSize0x0());
-
-  // Server format request 320x200.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Server format request 160x100. But view disabled. Adapt nothing.
-  adapter.set_view_adaptation(false);
-  format.width = 160;
-  format.height = 100;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-  adapter.set_view_adaptation(true);
-
-  // Enable View Switch. Expect adapt down.
-  adapter.set_view_switch(true);
-  format.width = 160;
-  format.height = 100;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(160, adapter.output_format().width);
-  EXPECT_EQ(100, adapter.output_format().height);
-
-  // Encoder resolution request: upgrade. Adapt nothing.
-  adapter.OnEncoderResolutionRequest(160, 100,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(160, adapter.output_format().width);
-  EXPECT_EQ(100, adapter.output_format().height);
-
-  // Request View of 2 / 3. Expect adapt down.
-  adapter.set_view_switch(true);
-  format.width = (640 * 2 + 1) / 3;
-  format.height = (400 * 2 + 1) / 3;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ((640 * 2 + 1) / 3, adapter.output_format().width);
-  EXPECT_EQ((400 * 2 + 1) / 3, adapter.output_format().height);
-
-
-  // Request View of 3 / 8. Expect adapt down.
-  adapter.set_view_switch(true);
-  format.width = 640 * 3 / 8;
-  format.height = 400 * 3 / 8;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640 * 3 / 8, adapter.output_format().width);
-  EXPECT_EQ(400 * 3 / 8, adapter.output_format().height);
-
-  // View Switch back up. Expect adapt.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  adapter.set_view_switch(false);
-
-  // Encoder resolution request: upgrade. Constrained by server request.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Server format request 480x300.
-  format.width = 480;
-  format.height = 300;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-}
-
-TEST(CoordinatedVideoAdapterTest, TestCoordinatedWithCpuAdaptation) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(true);
-  EXPECT_FALSE(adapter.cpu_smoothing());
-  VideoFormat format(640, 400, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-
-  // Server format request 640x400.
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Process load is medium, but system load is high. Downgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.55f, 0.98f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // CPU high, but cpu adaptation disabled. Adapt nothing.
-  adapter.set_cpu_adaptation(false);
-  adapter.OnCpuLoadUpdated(1, 1, 0.55f, 0.98f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-  adapter.set_cpu_adaptation(true);
-
-  // System load is high, but time has not elaspsed. Adapt nothing.
-  adapter.set_cpu_load_min_samples(2);
-  adapter.OnCpuLoadUpdated(1, 1, 0.55f, 0.98f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Process load is medium, but system load is high. Downgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.55f, 0.98f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is CPU.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU,
-            adapter.adapt_reason());
-
-  // Server format request 320x200. Same as CPU. Do nothing.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is CPU and VIEW.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU +
-            CoordinatedVideoAdapter::ADAPTREASON_VIEW,
-            adapter.adapt_reason());
-
-  // Process load and system load are normal. Adapt nothing.
-  UpdateCpuLoad(&adapter, 1, 1, 0.5f, 0.8f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Process load and system load are low, but view is still low. Adapt nothing.
-  UpdateCpuLoad(&adapter, 1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is VIEW.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_VIEW,
-            adapter.adapt_reason());
-
-  // Server format request 640x400. Cpu is still low.  Upgrade.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Test reason for adapting is CPU.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU,
-            adapter.adapt_reason());
-
-  // Encoder resolution request: downgrade.
-  adapter.OnEncoderResolutionRequest(480, 300,
-                                     CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is BANDWIDTH.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_BANDWIDTH,
-            adapter.adapt_reason());
-
-  // Process load and system load are low. Constrained by GD. Adapt nothing
-  adapter.OnCpuLoadUpdated(1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Encoder resolution request: upgrade.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Encoder resolution request: upgrade. Constrained by CPU.
-  adapter.OnEncoderResolutionRequest(480, 300,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Server format request 640x400. Constrained by CPU.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-}
-
-TEST(CoordinatedVideoAdapterTest, TestCoordinatedWithCpuRequest) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(true);
-  EXPECT_FALSE(adapter.cpu_smoothing());
-  VideoFormat format(640, 400, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-
-  // Server format request 640x400.
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // CPU resolution request: downgrade.  Adapt down.
-  adapter.OnCpuResolutionRequest(CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // CPU resolution request: keep. Do nothing.
-  adapter.OnCpuResolutionRequest(CoordinatedVideoAdapter::KEEP);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // CPU resolution request: downgrade, but cpu adaptation disabled.
-  // Adapt nothing.
-  adapter.set_cpu_adaptation(false);
-  adapter.OnCpuResolutionRequest(CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // CPU resolution request: downgrade.  Adapt down.
-  adapter.set_cpu_adaptation(true);
-  adapter.OnCpuResolutionRequest(CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is CPU.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU,
-            adapter.adapt_reason());
-
-  // CPU resolution request: downgrade, but already at minimum.  Do nothing.
-  adapter.OnCpuResolutionRequest(CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Server format request 320x200. Same as CPU. Do nothing.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is CPU and VIEW.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU +
-            CoordinatedVideoAdapter::ADAPTREASON_VIEW,
-            adapter.adapt_reason());
-
-  // CPU resolution request: upgrade, but view request still low. Do nothing.
-  adapter.OnCpuResolutionRequest(CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is VIEW.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_VIEW,
-            adapter.adapt_reason());
-
-  // Server format request 640x400. Cpu is still low.  Upgrade.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Test reason for adapting is CPU.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU,
-            adapter.adapt_reason());
-
-  // Encoder resolution request: downgrade.
-  adapter.OnEncoderResolutionRequest(480, 300,
-                                     CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Test reason for adapting is BANDWIDTH.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_BANDWIDTH,
-            adapter.adapt_reason());
-
-  // Process load and system load are low. Constrained by GD. Adapt nothing
-  adapter.OnCpuLoadUpdated(1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Encoder resolution request: upgrade.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Encoder resolution request: upgrade. Constrained by CPU.
-  adapter.OnEncoderResolutionRequest(480, 300,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Server format request 640x400. Constrained by CPU.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-}
-
-TEST(CoordinatedVideoAdapterTest, TestViewRequestPlusCameraSwitch) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_view_switch(true);
-
-  // Start at HD.
-  VideoFormat format(1280, 720, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  EXPECT_EQ(format, adapter.input_format());
-  EXPECT_TRUE(adapter.output_format().IsSize0x0());
-
-  // View request for VGA.
-  format.width = 640;
-  format.height = 360;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(360, adapter.output_format().height);
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_VIEW, adapter.adapt_reason());
-
-  // Now, the camera reopens at VGA.
-  // Both the frame and the output format should be 640x360.
-  const VideoFormat out_format = adapter.AdaptFrameResolution(640, 360);
-  EXPECT_EQ(640, out_format.width);
-  EXPECT_EQ(360, out_format.height);
-  // At this point, the view is no longer adapted, since the input has resized
-  // small enough to fit the last view request.
-  EXPECT_EQ(0, adapter.adapt_reason());
-
-  // And another view request comes in for 640x360, which should have no
-  // real impact.
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(360, adapter.output_format().height);
-  EXPECT_EQ(0, adapter.adapt_reason());
-}
-
-TEST(CoordinatedVideoAdapterTest, TestVGAWidth) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_view_switch(true);
-
-  // Start at 640x480, for cameras that don't support 640x360.
-  VideoFormat format(640, 480, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  EXPECT_EQ(format, adapter.input_format());
-  EXPECT_TRUE(adapter.output_format().IsSize0x0());
-
-  // Output format is 640x360, though.
-  format.width = 640;
-  format.height = 360;
-  adapter.SetOutputFormat(format);
-
-  // And also a view request comes for 640x360.
-  adapter.OnOutputFormatRequest(format);
-  // At this point, we have to adapt down to something lower.
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(360, adapter.output_format().height);
-
-  // But if frames come in at 640x360, we shouldn't adapt them down.
-  // Fake a 640x360 frame.
-  VideoFormat out_format = adapter.AdaptFrameResolution(640, 360);
-  EXPECT_EQ(640, out_format.width);
-  EXPECT_EQ(360, out_format.height);
-
-  // Similarly, no-op adapt requests for other reasons shouldn't change
-  // adaptation state (before a previous bug, the previous EXPECTs would
-  // fail and the following would succeed, as the no-op CPU request would
-  // fix the adaptation state).
-  adapter.set_cpu_adaptation(true);
-  UpdateCpuLoad(&adapter, 1, 1, 0.7f, 0.7f);
-  out_format = adapter.AdaptFrameResolution(640, 360);
-
-  EXPECT_EQ(640, out_format.width);
-  EXPECT_EQ(360, out_format.height);
-}
-
-// When adapting resolution for CPU or GD, the quantity of pixels that the
-// request is based on is reduced to half or double, and then an actual
-// resolution is snapped to, rounding to the closest actual resolution.
-// This works well for some tolerance to 3/4, odd widths and aspect ratios
-// that dont exactly match, but is not best behavior for ViewRequests which
-// need to be be strictly respected to avoid going over the resolution budget
-// given to the codec - 854x480 total pixels.
-// ViewRequest must find a lower resolution.
-TEST(CoordinatedVideoAdapterTest, TestCoordinatedViewRequestDown) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(false);
-
-  VideoFormat format(960, 540, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  adapter.set_scale_third(true);
-  EXPECT_EQ(format, adapter.input_format());
-  EXPECT_TRUE(adapter.output_format().IsSize0x0());
-
-  // Server format request 640x400. Expect HVGA.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(360, adapter.output_format().height);
-
-  // Test reason for adapting is VIEW.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_VIEW, adapter.adapt_reason());
-}
-
-// Test that we downgrade video for cpu up to two times.
-TEST(CoordinatedVideoAdapterTest, TestCpuDowngradeTimes) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(true);
-  EXPECT_FALSE(adapter.cpu_smoothing());
-  VideoFormat format(640, 400, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-
-  // Server format request 640x400.
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Process load and system load are low. Do not change the cpu desired format
-  // and do not adapt.
-  adapter.OnCpuLoadUpdated(1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // System load is high. Downgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // System load is high. Downgrade again.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // System load is still high. Do not downgrade any more.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Process load and system load are low. Upgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // System load is high. Downgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // System load is still high. Do not downgrade any more.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-}
-
-// Test that we respect CPU adapter threshold values.
-TEST(CoordinatedVideoAdapterTest, TestAdapterCpuThreshold) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(true);
-  EXPECT_FALSE(adapter.cpu_smoothing());
-  VideoFormat format(640, 400, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-
-  // Server format request 640x400.
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Process load and system load are low. Do not change the cpu desired format
-  // and do not adapt.
-  adapter.OnCpuLoadUpdated(1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // System load is high. Downgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Test reason for adapting is CPU.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_CPU, adapter.adapt_reason());
-
-  // System load is high. Normally downgrade but threshold is high. Do nothing.
-  adapter.set_high_system_threshold(0.98f);  // Set threshold high.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // System load is medium. Normally do nothing, threshold is low. Adapt down.
-  adapter.set_high_system_threshold(0.75f);  // Set threshold low.
-  UpdateCpuLoad(&adapter, 1, 1, 0.8f, 0.8f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-}
-
-
-// Test that for an upgrade cpu request, we actually upgrade the desired format;
-// for a downgrade request, we downgrade from the output format.
-TEST(CoordinatedVideoAdapterTest, TestRealCpuUpgrade) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(true);
-  adapter.set_cpu_smoothing(true);
-  VideoFormat format(640, 400, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-
-  // Server format request 640x400.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Process load and system load are low. Do not change the cpu desired format
-  // and do not adapt.
-  UpdateCpuLoad(&adapter, 1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Server format request 320x200.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Process load and system load are low. Do not change the cpu desired format
-  // and do not adapt.
-  UpdateCpuLoad(&adapter, 1, 1, 0.2f, 0.3f);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Server format request 640x400. Set to 640x400 immediately.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Server format request 320x200.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Process load is high, but system is not. Do not change the cpu desired
-  // format and do not adapt.
-  for (size_t i = 0; i < 10; ++i) {
-    UpdateCpuLoad(&adapter, 1, 1, 0.75f, 0.8f);
-  }
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-}
-
-// Test that for an upgrade encoder request, we actually upgrade the desired
-//  format; for a downgrade request, we downgrade from the output format.
-TEST(CoordinatedVideoAdapterTest, TestRealEncoderUpgrade) {
-  CoordinatedVideoAdapter adapter;
-  adapter.set_cpu_adaptation(true);
-  adapter.set_cpu_smoothing(true);
-  VideoFormat format(640, 400, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-
-  // Server format request 640x400.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Encoder resolution request. Do not change the encoder desired format and
-  // do not adapt.
-  adapter.OnEncoderResolutionRequest(640, 400,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(400, adapter.output_format().height);
-
-  // Server format request 320x200.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Encoder resolution request. Do not change the encoder desired format and
-  // do not adapt.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::UPGRADE);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Server format request 640x400. Set to 640x400 immediately.
-  format.width = 640;
-  format.height = 400;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(300, adapter.output_format().height);
-
-  // Test reason for adapting is BANDWIDTH.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_BANDWIDTH,
-            adapter.adapt_reason());
-
-  // Server format request 320x200.
-  format.width = 320;
-  format.height = 200;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(200, adapter.output_format().height);
-
-  // Encoder resolution request. Downgrade from 320x200.
-  adapter.OnEncoderResolutionRequest(320, 200,
-                                     CoordinatedVideoAdapter::DOWNGRADE);
-  EXPECT_EQ(240, adapter.output_format().width);
-  EXPECT_EQ(150, adapter.output_format().height);
-}
-
-TEST(CoordinatedVideoAdapterTest, TestNormalizeOutputFormat) {
-  CoordinatedVideoAdapter adapter;
-  // The input format is 640x360 and the output is limited to 16:9.
-  VideoFormat format(640, 360, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-
-  format.width = 320;
-  format.height = 180;
-  format.interval = VideoFormat::FpsToInterval(15);
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(180, adapter.output_format().height);
-  EXPECT_EQ(VideoFormat::FpsToInterval(15), adapter.output_format().interval);
-
-  format.width = 320;
-  format.height = 200;
-  format.interval = VideoFormat::FpsToInterval(40);
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(180, adapter.output_format().height);
-  EXPECT_EQ(VideoFormat::FpsToInterval(30), adapter.output_format().interval);
-
-  // Test reason for adapting is VIEW. Should work even with normalization.
-  EXPECT_EQ(CoordinatedVideoAdapter::ADAPTREASON_VIEW,
-            adapter.adapt_reason());
-
-  format.width = 320;
-  format.height = 240;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(180, adapter.output_format().height);
-
-  // The input format is 640x480 and the output will be 4:3.
-  format.width = 640;
-  format.height = 480;
-  adapter.SetInputFormat(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(240, adapter.output_format().height);
-
-  format.width = 320;
-  format.height = 240;
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(240, adapter.output_format().height);
-
-  // The input format is initialized after the output. At that time, the output
-  // height is adjusted.
-  format.width = 0;
-  format.height = 0;
-  adapter.SetInputFormat(format);
-
-  format.width = 320;
-  format.height = 240;
-  format.interval = VideoFormat::FpsToInterval(30);
-  adapter.OnOutputFormatRequest(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(240, adapter.output_format().height);
-  EXPECT_EQ(VideoFormat::FpsToInterval(30), adapter.output_format().interval);
-
-  format.width = 640;
-  format.height = 480;
-  format.interval = VideoFormat::FpsToInterval(15);
-  adapter.SetInputFormat(format);
-  EXPECT_EQ(320, adapter.output_format().width);
-  EXPECT_EQ(240, adapter.output_format().height);
-  EXPECT_EQ(VideoFormat::FpsToInterval(15), adapter.output_format().interval);
-}
-
-// Test that we downgrade video for cpu up to two times.
-TEST_F(VideoAdapterTest, CpuDowngradeAndSignal) {
-  CoordinatedVideoAdapter adapter;
-  CpuAdapterListener cpu_listener;
-  adapter.SignalCpuAdaptationUnable.connect(
-      &cpu_listener, &CpuAdapterListener::OnCpuAdaptationSignalled);
-
-  adapter.set_cpu_adaptation(true);
-  EXPECT_FALSE(adapter.cpu_smoothing());
-  VideoFormat format(640, 360, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  adapter.OnOutputFormatRequest(format);
-
-  // System load is high. Downgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-
-  // System load is high. Downgrade again.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-
-  // System load is still high. Do not downgrade any more. Ensure we have not
-  // signalled until after the cpu warning though.
-  EXPECT_TRUE(!cpu_listener.received_cpu_signal());
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  EXPECT_TRUE_WAIT(cpu_listener.received_cpu_signal(), kWaitTimeout);
-}
-
-// Test that we downgrade video for cpu up to two times.
-TEST_F(VideoAdapterTest, CpuDowngradeAndDontSignal) {
-  CoordinatedVideoAdapter adapter;
-  CpuAdapterListener cpu_listener;
-  adapter.SignalCpuAdaptationUnable.connect(
-      &cpu_listener, &CpuAdapterListener::OnCpuAdaptationSignalled);
-
-  adapter.set_cpu_adaptation(true);
-  adapter.set_cpu_smoothing(true);
-  VideoFormat format(640, 360, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  adapter.OnOutputFormatRequest(format);
-
-  // System load is high. Downgrade.
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-
-  // System load is high, process is not, Do not downgrade again.
-  UpdateCpuLoad(&adapter, 1, 1, 0.25f, 0.95f);
-
-  // System load is high, process is not, Do not downgrade again and do not
-  // signal.
-  adapter.set_cpu_adaptation(false);
-  UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  rtc::Thread::Current()->ProcessMessages(kShortWaitTimeout);
-  EXPECT_TRUE(!cpu_listener.received_cpu_signal());
-  adapter.set_cpu_adaptation(true);
-}
-
-// Test that we require enough time before we downgrade.
-TEST_F(VideoAdapterTest, CpuMinTimeRequirement) {
-  CoordinatedVideoAdapter adapter;
-  CpuAdapterListener cpu_listener;
-  adapter.SignalCpuAdaptationUnable.connect(
-      &cpu_listener, &CpuAdapterListener::OnCpuAdaptationSignalled);
-
-  adapter.set_cpu_adaptation(true);
-  adapter.set_cpu_smoothing(true);
-  VideoFormat format(640, 360, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  adapter.OnOutputFormatRequest(format);
-
-  EXPECT_EQ(3, adapter.cpu_load_min_samples());
-  adapter.set_cpu_load_min_samples(5);
-
-  for (size_t i = 0; i < 4; ++i) {
-    adapter.OnCpuLoadUpdated(1, 1, 1.0f, 1.0f);
-    EXPECT_EQ(640, adapter.output_format().width);
-    EXPECT_EQ(360, adapter.output_format().height);
-  }
-  // The computed cpu load should now be around 93.5%, with the coefficient of
-  // 0.4 and a seed value of 0.5. That should be high enough to adapt, but it
-  // isn't enough samples, so we shouldn't have adapted on any of the previous
-  // samples.
-
-  // One more sample is enough, though, once enough time has passed.
-  adapter.OnCpuLoadUpdated(1, 1, 1.0f, 1.0f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(270, adapter.output_format().height);
-
-  // Now the cpu is lower, but we still need enough samples to upgrade.
-  for (size_t i = 0; i < 4; ++i) {
-    adapter.OnCpuLoadUpdated(1, 1, 0.1f, 0.1f);
-    EXPECT_EQ(480, adapter.output_format().width);
-    EXPECT_EQ(270, adapter.output_format().height);
-  }
-
-  // One more sample is enough, once time has elapsed.
-  adapter.OnCpuLoadUpdated(1, 1, 1.0f, 1.0f);
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(360, adapter.output_format().height);
-}
-
-TEST_F(VideoAdapterTest, CpuIgnoresSpikes) {
-  CoordinatedVideoAdapter adapter;
-  CpuAdapterListener cpu_listener;
-  adapter.SignalCpuAdaptationUnable.connect(
-      &cpu_listener, &CpuAdapterListener::OnCpuAdaptationSignalled);
-
-  adapter.set_cpu_adaptation(true);
-  adapter.set_cpu_smoothing(true);
-  VideoFormat format(640, 360, VideoFormat::FpsToInterval(30), FOURCC_I420);
-  adapter.SetInputFormat(format);
-  adapter.OnOutputFormatRequest(format);
-
-  // System load is high. Downgrade.
-  for (size_t i = 0; i < 5; ++i) {
-    UpdateCpuLoad(&adapter, 1, 1, 0.95f, 0.95f);
-  }
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(270, adapter.output_format().height);
-
-  // Now we're in a state where we could upgrade or downgrade, so get to a
-  // steady state of about 75% cpu usage.
-  for (size_t i = 0; i < 5; ++i) {
-    UpdateCpuLoad(&adapter, 1, 1, 0.75f, 0.75f);
-    EXPECT_EQ(480, adapter.output_format().width);
-    EXPECT_EQ(270, adapter.output_format().height);
-  }
-
-  // Now, the cpu spikes for two samples, but then goes back to
-  // normal. This shouldn't cause adaptation.
-  UpdateCpuLoad(&adapter, 1, 1, 0.90f, 0.90f);
-  UpdateCpuLoad(&adapter, 1, 1, 0.90f, 0.90f);
-  EXPECT_EQ(480, adapter.output_format().width);
-  EXPECT_EQ(270, adapter.output_format().height);
-  // Back to the steady state for awhile.
-  for (size_t i = 0; i < 5; ++i) {
-    UpdateCpuLoad(&adapter, 1, 1, 0.75, 0.75);
-    EXPECT_EQ(480, adapter.output_format().width);
-    EXPECT_EQ(270, adapter.output_format().height);
-  }
-
-  // Now, system cpu usage is starting to drop down. But it takes a bit before
-  // it gets all the way there.
-  for (size_t i = 0; i < 10; ++i) {
-    UpdateCpuLoad(&adapter, 1, 1, 0.5f, 0.5f);
-  }
-  EXPECT_EQ(640, adapter.output_format().width);
-  EXPECT_EQ(360, adapter.output_format().height);
-}
-
-}  // namespace cricket
-#endif  // HAVE_WEBRTC_VIDEO