Moving src/webrtc into src/.
In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
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Mirko Bonadei
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modules/video_coding/utility/quality_scaler_unittest.cc
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modules/video_coding/utility/quality_scaler_unittest.cc
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/*
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* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "webrtc/modules/video_coding/utility/quality_scaler.h"
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#include <memory>
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#include "webrtc/rtc_base/event.h"
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#include "webrtc/rtc_base/task_queue.h"
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#include "webrtc/test/gmock.h"
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#include "webrtc/test/gtest.h"
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namespace webrtc {
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namespace {
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static const int kFramerate = 30;
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static const int kLowQp = 15;
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static const int kLowQpThreshold = 18;
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static const int kHighQp = 40;
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static const size_t kDefaultTimeoutMs = 150;
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} // namespace
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#define DO_SYNC(q, block) do { \
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rtc::Event event(false, false); \
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q->PostTask([this, &event] { \
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block; \
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event.Set(); \
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}); \
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RTC_CHECK(event.Wait(1000)); \
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} while (0)
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class MockAdaptationObserver : public AdaptationObserverInterface {
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public:
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MockAdaptationObserver() : event(false, false) {}
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virtual ~MockAdaptationObserver() {}
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void AdaptUp(AdaptReason r) override {
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adapt_up_events_++;
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event.Set();
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}
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void AdaptDown(AdaptReason r) override {
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adapt_down_events_++;
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event.Set();
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}
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rtc::Event event;
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int adapt_up_events_ = 0;
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int adapt_down_events_ = 0;
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};
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// Pass a lower sampling period to speed up the tests.
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class QualityScalerUnderTest : public QualityScaler {
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public:
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explicit QualityScalerUnderTest(AdaptationObserverInterface* observer,
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VideoEncoder::QpThresholds thresholds)
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: QualityScaler(observer, thresholds, 5) {}
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};
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class QualityScalerTest : public ::testing::Test {
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protected:
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enum ScaleDirection {
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kKeepScaleAtHighQp,
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kScaleDown,
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kScaleDownAboveHighQp,
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kScaleUp
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};
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QualityScalerTest()
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: q_(new rtc::TaskQueue("QualityScalerTestQueue")),
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observer_(new MockAdaptationObserver()) {
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DO_SYNC(q_, {
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qs_ = std::unique_ptr<QualityScaler>(new QualityScalerUnderTest(
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observer_.get(),
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VideoEncoder::QpThresholds(kLowQpThreshold, kHighQp)));});
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}
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~QualityScalerTest() {
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DO_SYNC(q_, {qs_.reset(nullptr);});
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}
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void TriggerScale(ScaleDirection scale_direction) {
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for (int i = 0; i < kFramerate * 5; ++i) {
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switch (scale_direction) {
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case kScaleUp:
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qs_->ReportQP(kLowQp);
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break;
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case kScaleDown:
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qs_->ReportDroppedFrame();
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break;
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case kKeepScaleAtHighQp:
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qs_->ReportQP(kHighQp);
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break;
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case kScaleDownAboveHighQp:
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qs_->ReportQP(kHighQp + 1);
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break;
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}
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}
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}
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std::unique_ptr<rtc::TaskQueue> q_;
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std::unique_ptr<QualityScaler> qs_;
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std::unique_ptr<MockAdaptationObserver> observer_;
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};
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TEST_F(QualityScalerTest, DownscalesAfterContinuousFramedrop) {
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DO_SYNC(q_, { TriggerScale(kScaleDown); });
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(1, observer_->adapt_down_events_);
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}
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TEST_F(QualityScalerTest, KeepsScaleAtHighQp) {
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DO_SYNC(q_, { TriggerScale(kKeepScaleAtHighQp); });
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EXPECT_FALSE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(0, observer_->adapt_down_events_);
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EXPECT_EQ(0, observer_->adapt_up_events_);
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}
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TEST_F(QualityScalerTest, DownscalesAboveHighQp) {
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DO_SYNC(q_, { TriggerScale(kScaleDownAboveHighQp); });
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(1, observer_->adapt_down_events_);
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EXPECT_EQ(0, observer_->adapt_up_events_);
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}
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TEST_F(QualityScalerTest, DownscalesAfterTwoThirdsFramedrop) {
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DO_SYNC(q_, {
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for (int i = 0; i < kFramerate * 5; ++i) {
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qs_->ReportDroppedFrame();
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qs_->ReportDroppedFrame();
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qs_->ReportQP(kHighQp);
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}
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});
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(1, observer_->adapt_down_events_);
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EXPECT_EQ(0, observer_->adapt_up_events_);
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}
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TEST_F(QualityScalerTest, DoesNotDownscaleOnNormalQp) {
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DO_SYNC(q_, { TriggerScale(kScaleDownAboveHighQp); });
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(1, observer_->adapt_down_events_);
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EXPECT_EQ(0, observer_->adapt_up_events_);
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}
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TEST_F(QualityScalerTest, DoesNotDownscaleAfterHalfFramedrop) {
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DO_SYNC(q_, {
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for (int i = 0; i < kFramerate * 5; ++i) {
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qs_->ReportDroppedFrame();
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qs_->ReportQP(kHighQp);
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}
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});
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EXPECT_FALSE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(0, observer_->adapt_down_events_);
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EXPECT_EQ(0, observer_->adapt_up_events_);
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}
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TEST_F(QualityScalerTest, UpscalesAfterLowQp) {
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DO_SYNC(q_, { TriggerScale(kScaleUp); });
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(0, observer_->adapt_down_events_);
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EXPECT_EQ(1, observer_->adapt_up_events_);
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}
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TEST_F(QualityScalerTest, ScalesDownAndBackUp) {
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DO_SYNC(q_, { TriggerScale(kScaleDown); });
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(1, observer_->adapt_down_events_);
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EXPECT_EQ(0, observer_->adapt_up_events_);
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DO_SYNC(q_, { TriggerScale(kScaleUp); });
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(1, observer_->adapt_down_events_);
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EXPECT_EQ(1, observer_->adapt_up_events_);
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}
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TEST_F(QualityScalerTest, DoesNotScaleUntilEnoughFramesObserved) {
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DO_SYNC(q_, {
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// Send 30 frames. This should not be enough to make a decision.
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for (int i = 0; i < kFramerate; ++i) {
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qs_->ReportQP(kLowQp);
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}
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});
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EXPECT_FALSE(observer_->event.Wait(kDefaultTimeoutMs));
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DO_SYNC(q_, {
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// Send 30 more. This should result in an adapt request as
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// enough frames have now been observed.
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for (int i = 0; i < kFramerate; ++i) {
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qs_->ReportQP(kLowQp);
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}
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});
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EXPECT_TRUE(observer_->event.Wait(kDefaultTimeoutMs));
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EXPECT_EQ(0, observer_->adapt_down_events_);
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EXPECT_EQ(1, observer_->adapt_up_events_);
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}
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} // namespace webrtc
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#undef DO_SYNC
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