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Diffstat (limited to 'webrtc/video/overuse_frame_detector_unittest.cc')
| -rw-r--r-- | webrtc/video/overuse_frame_detector_unittest.cc | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/webrtc/video/overuse_frame_detector_unittest.cc b/webrtc/video/overuse_frame_detector_unittest.cc new file mode 100644 index 0000000000..65e006b485 --- /dev/null +++ b/webrtc/video/overuse_frame_detector_unittest.cc @@ -0,0 +1,310 @@ +/* + * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "webrtc/video/overuse_frame_detector.h" + +#include "testing/gmock/include/gmock/gmock.h" +#include "testing/gtest/include/gtest/gtest.h" + +#include "webrtc/base/scoped_ptr.h" +#include "webrtc/system_wrappers/include/clock.h" + +namespace webrtc { +namespace { + const int kWidth = 640; + const int kHeight = 480; + const int kFrameInterval33ms = 33; + const int kProcessIntervalMs = 5000; + const int kProcessTime5ms = 5; +} // namespace + +class MockCpuOveruseObserver : public CpuOveruseObserver { + public: + MockCpuOveruseObserver() {} + virtual ~MockCpuOveruseObserver() {} + + MOCK_METHOD0(OveruseDetected, void()); + MOCK_METHOD0(NormalUsage, void()); +}; + +class CpuOveruseObserverImpl : public CpuOveruseObserver { + public: + CpuOveruseObserverImpl() : + overuse_(0), + normaluse_(0) {} + virtual ~CpuOveruseObserverImpl() {} + + void OveruseDetected() { ++overuse_; } + void NormalUsage() { ++normaluse_; } + + int overuse_; + int normaluse_; +}; + +class OveruseFrameDetectorTest : public ::testing::Test, + public CpuOveruseMetricsObserver { + protected: + virtual void SetUp() { + clock_.reset(new SimulatedClock(1234)); + observer_.reset(new MockCpuOveruseObserver()); + options_.min_process_count = 0; + ReinitializeOveruseDetector(); + } + + void ReinitializeOveruseDetector() { + overuse_detector_.reset(new OveruseFrameDetector(clock_.get(), options_, + observer_.get(), this)); + } + + void CpuOveruseMetricsUpdated(const CpuOveruseMetrics& metrics) override { + metrics_ = metrics; + } + + int InitialUsage() { + return ((options_.low_encode_usage_threshold_percent + + options_.high_encode_usage_threshold_percent) / 2.0f) + 0.5; + } + + void InsertAndSendFramesWithInterval( + int num_frames, int interval_ms, int width, int height, int delay_ms) { + while (num_frames-- > 0) { + int64_t capture_time_ms = clock_->TimeInMilliseconds(); + overuse_detector_->FrameCaptured(width, height, capture_time_ms); + clock_->AdvanceTimeMilliseconds(delay_ms); + overuse_detector_->FrameSent(capture_time_ms); + clock_->AdvanceTimeMilliseconds(interval_ms - delay_ms); + } + } + + void TriggerOveruse(int num_times) { + const int kDelayMs = 32; + for (int i = 0; i < num_times; ++i) { + InsertAndSendFramesWithInterval( + 1000, kFrameInterval33ms, kWidth, kHeight, kDelayMs); + overuse_detector_->Process(); + } + } + + void TriggerUnderuse() { + const int kDelayMs1 = 5; + const int kDelayMs2 = 6; + InsertAndSendFramesWithInterval( + 1300, kFrameInterval33ms, kWidth, kHeight, kDelayMs1); + InsertAndSendFramesWithInterval( + 1, kFrameInterval33ms, kWidth, kHeight, kDelayMs2); + overuse_detector_->Process(); + } + + int UsagePercent() { return metrics_.encode_usage_percent; } + + CpuOveruseOptions options_; + rtc::scoped_ptr<SimulatedClock> clock_; + rtc::scoped_ptr<MockCpuOveruseObserver> observer_; + rtc::scoped_ptr<OveruseFrameDetector> overuse_detector_; + CpuOveruseMetrics metrics_; +}; + + +// UsagePercent() > high_encode_usage_threshold_percent => overuse. +// UsagePercent() < low_encode_usage_threshold_percent => underuse. +TEST_F(OveruseFrameDetectorTest, TriggerOveruse) { + // usage > high => overuse + EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); + TriggerOveruse(options_.high_threshold_consecutive_count); +} + +TEST_F(OveruseFrameDetectorTest, OveruseAndRecover) { + // usage > high => overuse + EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); + TriggerOveruse(options_.high_threshold_consecutive_count); + // usage < low => underuse + EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(testing::AtLeast(1)); + TriggerUnderuse(); +} + +TEST_F(OveruseFrameDetectorTest, OveruseAndRecoverWithNoObserver) { + overuse_detector_.reset( + new OveruseFrameDetector(clock_.get(), options_, nullptr, this)); + EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(0); + TriggerOveruse(options_.high_threshold_consecutive_count); + EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(0); + TriggerUnderuse(); +} + +TEST_F(OveruseFrameDetectorTest, DoubleOveruseAndRecover) { + EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(2); + TriggerOveruse(options_.high_threshold_consecutive_count); + TriggerOveruse(options_.high_threshold_consecutive_count); + EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(testing::AtLeast(1)); + TriggerUnderuse(); +} + +TEST_F(OveruseFrameDetectorTest, TriggerUnderuseWithMinProcessCount) { + options_.min_process_count = 1; + CpuOveruseObserverImpl overuse_observer; + overuse_detector_.reset(new OveruseFrameDetector(clock_.get(), options_, + &overuse_observer, this)); + InsertAndSendFramesWithInterval( + 1200, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); + overuse_detector_->Process(); + EXPECT_EQ(0, overuse_observer.normaluse_); + clock_->AdvanceTimeMilliseconds(kProcessIntervalMs); + overuse_detector_->Process(); + EXPECT_EQ(1, overuse_observer.normaluse_); +} + +TEST_F(OveruseFrameDetectorTest, ConstantOveruseGivesNoNormalUsage) { + EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(0); + EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(64); + for (size_t i = 0; i < 64; ++i) { + TriggerOveruse(options_.high_threshold_consecutive_count); + } +} + +TEST_F(OveruseFrameDetectorTest, ConsecutiveCountTriggersOveruse) { + EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); + options_.high_threshold_consecutive_count = 2; + ReinitializeOveruseDetector(); + TriggerOveruse(2); +} + +TEST_F(OveruseFrameDetectorTest, IncorrectConsecutiveCountTriggersNoOveruse) { + EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(0); + options_.high_threshold_consecutive_count = 2; + ReinitializeOveruseDetector(); + TriggerOveruse(1); +} + +TEST_F(OveruseFrameDetectorTest, ProcessingUsage) { + InsertAndSendFramesWithInterval( + 1000, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); + EXPECT_EQ(kProcessTime5ms * 100 / kFrameInterval33ms, UsagePercent()); +} + +TEST_F(OveruseFrameDetectorTest, ResetAfterResolutionChange) { + EXPECT_EQ(InitialUsage(), UsagePercent()); + InsertAndSendFramesWithInterval( + 1000, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); + EXPECT_NE(InitialUsage(), UsagePercent()); + // Verify reset. + InsertAndSendFramesWithInterval( + 1, kFrameInterval33ms, kWidth, kHeight + 1, kProcessTime5ms); + EXPECT_EQ(InitialUsage(), UsagePercent()); +} + +TEST_F(OveruseFrameDetectorTest, ResetAfterFrameTimeout) { + EXPECT_EQ(InitialUsage(), UsagePercent()); + InsertAndSendFramesWithInterval( + 1000, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); + EXPECT_NE(InitialUsage(), UsagePercent()); + InsertAndSendFramesWithInterval( + 2, options_.frame_timeout_interval_ms, kWidth, kHeight, kProcessTime5ms); + EXPECT_NE(InitialUsage(), UsagePercent()); + // Verify reset. + InsertAndSendFramesWithInterval( + 2, options_.frame_timeout_interval_ms + 1, kWidth, kHeight, + kProcessTime5ms); + EXPECT_EQ(InitialUsage(), UsagePercent()); +} + +TEST_F(OveruseFrameDetectorTest, MinFrameSamplesBeforeUpdating) { + options_.min_frame_samples = 40; + ReinitializeOveruseDetector(); + InsertAndSendFramesWithInterval( + 40, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); + EXPECT_EQ(InitialUsage(), UsagePercent()); + InsertAndSendFramesWithInterval( + 1, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); + EXPECT_NE(InitialUsage(), UsagePercent()); +} + +TEST_F(OveruseFrameDetectorTest, InitialProcessingUsage) { + EXPECT_EQ(InitialUsage(), UsagePercent()); +} + +TEST_F(OveruseFrameDetectorTest, FrameDelay_OneFrame) { + const int kProcessingTimeMs = 100; + overuse_detector_->FrameCaptured(kWidth, kHeight, 33); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + EXPECT_EQ(-1, overuse_detector_->LastProcessingTimeMs()); + overuse_detector_->FrameSent(33); + EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); + EXPECT_EQ(0, overuse_detector_->FramesInQueue()); +} + +TEST_F(OveruseFrameDetectorTest, FrameDelay_TwoFrames) { + const int kProcessingTimeMs1 = 100; + const int kProcessingTimeMs2 = 50; + const int kTimeBetweenFramesMs = 200; + overuse_detector_->FrameCaptured(kWidth, kHeight, 33); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs1); + overuse_detector_->FrameSent(33); + EXPECT_EQ(kProcessingTimeMs1, overuse_detector_->LastProcessingTimeMs()); + clock_->AdvanceTimeMilliseconds(kTimeBetweenFramesMs); + overuse_detector_->FrameCaptured(kWidth, kHeight, 66); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs2); + overuse_detector_->FrameSent(66); + EXPECT_EQ(kProcessingTimeMs2, overuse_detector_->LastProcessingTimeMs()); +} + +TEST_F(OveruseFrameDetectorTest, FrameDelay_MaxQueueSize) { + const int kMaxQueueSize = 91; + for (int i = 0; i < kMaxQueueSize * 2; ++i) { + overuse_detector_->FrameCaptured(kWidth, kHeight, i); + } + EXPECT_EQ(kMaxQueueSize, overuse_detector_->FramesInQueue()); +} + +TEST_F(OveruseFrameDetectorTest, FrameDelay_NonProcessedFramesRemoved) { + const int kProcessingTimeMs = 100; + overuse_detector_->FrameCaptured(kWidth, kHeight, 33); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + overuse_detector_->FrameCaptured(kWidth, kHeight, 35); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + overuse_detector_->FrameCaptured(kWidth, kHeight, 66); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + overuse_detector_->FrameCaptured(kWidth, kHeight, 99); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + EXPECT_EQ(-1, overuse_detector_->LastProcessingTimeMs()); + EXPECT_EQ(4, overuse_detector_->FramesInQueue()); + overuse_detector_->FrameSent(66); + // Frame 33, 35 removed, 66 processed, 99 not processed. + EXPECT_EQ(2 * kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); + EXPECT_EQ(1, overuse_detector_->FramesInQueue()); + overuse_detector_->FrameSent(99); + EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); + EXPECT_EQ(0, overuse_detector_->FramesInQueue()); +} + +TEST_F(OveruseFrameDetectorTest, FrameDelay_ResetClearsFrames) { + const int kProcessingTimeMs = 100; + overuse_detector_->FrameCaptured(kWidth, kHeight, 33); + EXPECT_EQ(1, overuse_detector_->FramesInQueue()); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + // Verify reset (resolution changed). + overuse_detector_->FrameCaptured(kWidth, kHeight + 1, 66); + EXPECT_EQ(1, overuse_detector_->FramesInQueue()); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + overuse_detector_->FrameSent(66); + EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); + EXPECT_EQ(0, overuse_detector_->FramesInQueue()); +} + +TEST_F(OveruseFrameDetectorTest, FrameDelay_NonMatchingSendFrameIgnored) { + const int kProcessingTimeMs = 100; + overuse_detector_->FrameCaptured(kWidth, kHeight, 33); + clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); + overuse_detector_->FrameSent(34); + EXPECT_EQ(-1, overuse_detector_->LastProcessingTimeMs()); + overuse_detector_->FrameSent(33); + EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); +} + +} // namespace webrtc |