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1 /* | |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license | |
5 * that can be found in the LICENSE file in the root of the source | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #include "webrtc/video/overuse_frame_detector.h" | |
12 | |
13 #include "testing/gmock/include/gmock/gmock.h" | |
14 #include "testing/gtest/include/gtest/gtest.h" | |
15 | |
16 #include "webrtc/base/scoped_ptr.h" | |
17 #include "webrtc/system_wrappers/include/clock.h" | |
18 | |
19 namespace webrtc { | |
20 namespace { | |
21 const int kWidth = 640; | |
22 const int kHeight = 480; | |
23 const int kFrameInterval33ms = 33; | |
24 const int kProcessIntervalMs = 5000; | |
25 const int kProcessTime5ms = 5; | |
26 } // namespace | |
27 | |
28 class MockCpuOveruseObserver : public CpuOveruseObserver { | |
29 public: | |
30 MockCpuOveruseObserver() {} | |
31 virtual ~MockCpuOveruseObserver() {} | |
32 | |
33 MOCK_METHOD0(OveruseDetected, void()); | |
34 MOCK_METHOD0(NormalUsage, void()); | |
35 }; | |
36 | |
37 class CpuOveruseObserverImpl : public CpuOveruseObserver { | |
38 public: | |
39 CpuOveruseObserverImpl() : | |
40 overuse_(0), | |
41 normaluse_(0) {} | |
42 virtual ~CpuOveruseObserverImpl() {} | |
43 | |
44 void OveruseDetected() { ++overuse_; } | |
45 void NormalUsage() { ++normaluse_; } | |
46 | |
47 int overuse_; | |
48 int normaluse_; | |
49 }; | |
50 | |
51 class OveruseFrameDetectorTest : public ::testing::Test, | |
52 public CpuOveruseMetricsObserver { | |
53 protected: | |
54 virtual void SetUp() { | |
55 clock_.reset(new SimulatedClock(1234)); | |
56 observer_.reset(new MockCpuOveruseObserver()); | |
57 options_.min_process_count = 0; | |
58 ReinitializeOveruseDetector(); | |
59 } | |
60 | |
61 void ReinitializeOveruseDetector() { | |
62 overuse_detector_.reset(new OveruseFrameDetector(clock_.get(), options_, | |
63 observer_.get(), this)); | |
64 } | |
65 | |
66 void CpuOveruseMetricsUpdated(const CpuOveruseMetrics& metrics) override { | |
67 metrics_ = metrics; | |
68 } | |
69 | |
70 int InitialUsage() { | |
71 return ((options_.low_encode_usage_threshold_percent + | |
72 options_.high_encode_usage_threshold_percent) / 2.0f) + 0.5; | |
73 } | |
74 | |
75 void InsertAndSendFramesWithInterval( | |
76 int num_frames, int interval_ms, int width, int height, int delay_ms) { | |
77 while (num_frames-- > 0) { | |
78 int64_t capture_time_ms = clock_->TimeInMilliseconds(); | |
79 overuse_detector_->FrameCaptured(width, height, capture_time_ms); | |
80 clock_->AdvanceTimeMilliseconds(delay_ms); | |
81 overuse_detector_->FrameEncoded(delay_ms); | |
82 overuse_detector_->FrameSent(capture_time_ms); | |
83 clock_->AdvanceTimeMilliseconds(interval_ms - delay_ms); | |
84 } | |
85 } | |
86 | |
87 void TriggerOveruse(int num_times) { | |
88 const int kDelayMs = 32; | |
89 for (int i = 0; i < num_times; ++i) { | |
90 InsertAndSendFramesWithInterval( | |
91 1000, kFrameInterval33ms, kWidth, kHeight, kDelayMs); | |
92 overuse_detector_->Process(); | |
93 } | |
94 } | |
95 | |
96 void TriggerUnderuse() { | |
97 const int kDelayMs1 = 5; | |
98 const int kDelayMs2 = 6; | |
99 InsertAndSendFramesWithInterval( | |
100 1300, kFrameInterval33ms, kWidth, kHeight, kDelayMs1); | |
101 InsertAndSendFramesWithInterval( | |
102 1, kFrameInterval33ms, kWidth, kHeight, kDelayMs2); | |
103 overuse_detector_->Process(); | |
104 } | |
105 | |
106 int UsagePercent() { return metrics_.encode_usage_percent; } | |
107 | |
108 CpuOveruseOptions options_; | |
109 rtc::scoped_ptr<SimulatedClock> clock_; | |
110 rtc::scoped_ptr<MockCpuOveruseObserver> observer_; | |
111 rtc::scoped_ptr<OveruseFrameDetector> overuse_detector_; | |
112 CpuOveruseMetrics metrics_; | |
113 }; | |
114 | |
115 | |
116 // enable_encode_usage_method = true; | |
117 // enable_extended_processing_usage = false; | |
118 // UsagePercent() > high_encode_usage_threshold_percent => overuse. | |
119 // UsagePercent() < low_encode_usage_threshold_percent => underuse. | |
120 TEST_F(OveruseFrameDetectorTest, TriggerOveruse) { | |
121 options_.enable_extended_processing_usage = false; | |
122 ReinitializeOveruseDetector(); | |
123 // usage > high => overuse | |
124 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); | |
125 TriggerOveruse(options_.high_threshold_consecutive_count); | |
126 } | |
127 | |
128 TEST_F(OveruseFrameDetectorTest, OveruseAndRecover) { | |
129 options_.enable_extended_processing_usage = false; | |
130 ReinitializeOveruseDetector(); | |
131 // usage > high => overuse | |
132 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); | |
133 TriggerOveruse(options_.high_threshold_consecutive_count); | |
134 // usage < low => underuse | |
135 EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(testing::AtLeast(1)); | |
136 TriggerUnderuse(); | |
137 } | |
138 | |
139 TEST_F(OveruseFrameDetectorTest, OveruseAndRecoverWithNoObserver) { | |
140 options_.enable_extended_processing_usage = false; | |
141 overuse_detector_.reset( | |
142 new OveruseFrameDetector(clock_.get(), options_, nullptr, this)); | |
143 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(0); | |
144 TriggerOveruse(options_.high_threshold_consecutive_count); | |
145 EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(0); | |
146 TriggerUnderuse(); | |
147 } | |
148 | |
149 TEST_F(OveruseFrameDetectorTest, OveruseAndRecoverWithMethodDisabled) { | |
150 options_.enable_encode_usage_method = false; | |
151 options_.enable_extended_processing_usage = false; | |
152 ReinitializeOveruseDetector(); | |
153 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(0); | |
154 TriggerOveruse(options_.high_threshold_consecutive_count); | |
155 EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(0); | |
156 TriggerUnderuse(); | |
157 } | |
158 | |
159 TEST_F(OveruseFrameDetectorTest, DoubleOveruseAndRecover) { | |
160 options_.enable_extended_processing_usage = false; | |
161 ReinitializeOveruseDetector(); | |
162 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(2); | |
163 TriggerOveruse(options_.high_threshold_consecutive_count); | |
164 TriggerOveruse(options_.high_threshold_consecutive_count); | |
165 EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(testing::AtLeast(1)); | |
166 TriggerUnderuse(); | |
167 } | |
168 | |
169 TEST_F(OveruseFrameDetectorTest, TriggerUnderuseWithMinProcessCount) { | |
170 options_.enable_extended_processing_usage = false; | |
171 options_.min_process_count = 1; | |
172 CpuOveruseObserverImpl overuse_observer; | |
173 overuse_detector_.reset(new OveruseFrameDetector(clock_.get(), options_, | |
174 &overuse_observer, this)); | |
175 InsertAndSendFramesWithInterval( | |
176 1200, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); | |
177 overuse_detector_->Process(); | |
178 EXPECT_EQ(0, overuse_observer.normaluse_); | |
179 clock_->AdvanceTimeMilliseconds(kProcessIntervalMs); | |
180 overuse_detector_->Process(); | |
181 EXPECT_EQ(1, overuse_observer.normaluse_); | |
182 } | |
183 | |
184 TEST_F(OveruseFrameDetectorTest, ConstantOveruseGivesNoNormalUsage) { | |
185 options_.enable_extended_processing_usage = false; | |
186 ReinitializeOveruseDetector(); | |
187 EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(0); | |
188 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(64); | |
189 for (size_t i = 0; i < 64; ++i) { | |
190 TriggerOveruse(options_.high_threshold_consecutive_count); | |
191 } | |
192 } | |
193 | |
194 TEST_F(OveruseFrameDetectorTest, ConsecutiveCountTriggersOveruse) { | |
195 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); | |
196 options_.enable_extended_processing_usage = false; | |
197 options_.high_threshold_consecutive_count = 2; | |
198 ReinitializeOveruseDetector(); | |
199 TriggerOveruse(2); | |
200 } | |
201 | |
202 TEST_F(OveruseFrameDetectorTest, IncorrectConsecutiveCountTriggersNoOveruse) { | |
203 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(0); | |
204 options_.enable_extended_processing_usage = false; | |
205 options_.high_threshold_consecutive_count = 2; | |
206 ReinitializeOveruseDetector(); | |
207 TriggerOveruse(1); | |
208 } | |
209 | |
210 TEST_F(OveruseFrameDetectorTest, ProcessingUsage) { | |
211 InsertAndSendFramesWithInterval( | |
212 1000, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); | |
213 EXPECT_EQ(kProcessTime5ms * 100 / kFrameInterval33ms, UsagePercent()); | |
214 } | |
215 | |
216 TEST_F(OveruseFrameDetectorTest, ResetAfterResolutionChange) { | |
217 EXPECT_EQ(InitialUsage(), UsagePercent()); | |
218 InsertAndSendFramesWithInterval( | |
219 1000, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); | |
220 EXPECT_NE(InitialUsage(), UsagePercent()); | |
221 // Verify reset. | |
222 InsertAndSendFramesWithInterval( | |
223 1, kFrameInterval33ms, kWidth, kHeight + 1, kProcessTime5ms); | |
224 EXPECT_EQ(InitialUsage(), UsagePercent()); | |
225 } | |
226 | |
227 TEST_F(OveruseFrameDetectorTest, ResetAfterFrameTimeout) { | |
228 EXPECT_EQ(InitialUsage(), UsagePercent()); | |
229 InsertAndSendFramesWithInterval( | |
230 1000, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); | |
231 EXPECT_NE(InitialUsage(), UsagePercent()); | |
232 InsertAndSendFramesWithInterval( | |
233 2, options_.frame_timeout_interval_ms, kWidth, kHeight, kProcessTime5ms); | |
234 EXPECT_NE(InitialUsage(), UsagePercent()); | |
235 // Verify reset. | |
236 InsertAndSendFramesWithInterval( | |
237 2, options_.frame_timeout_interval_ms + 1, kWidth, kHeight, | |
238 kProcessTime5ms); | |
239 EXPECT_EQ(InitialUsage(), UsagePercent()); | |
240 } | |
241 | |
242 TEST_F(OveruseFrameDetectorTest, MinFrameSamplesBeforeUpdating) { | |
243 options_.min_frame_samples = 40; | |
244 ReinitializeOveruseDetector(); | |
245 InsertAndSendFramesWithInterval( | |
246 40, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); | |
247 EXPECT_EQ(InitialUsage(), UsagePercent()); | |
248 InsertAndSendFramesWithInterval( | |
249 1, kFrameInterval33ms, kWidth, kHeight, kProcessTime5ms); | |
250 EXPECT_NE(InitialUsage(), UsagePercent()); | |
251 } | |
252 | |
253 TEST_F(OveruseFrameDetectorTest, InitialProcessingUsage) { | |
254 EXPECT_EQ(InitialUsage(), UsagePercent()); | |
255 } | |
256 | |
257 TEST_F(OveruseFrameDetectorTest, FrameDelay_OneFrameDisabled) { | |
258 options_.enable_extended_processing_usage = false; | |
259 ReinitializeOveruseDetector(); | |
260 const int kProcessingTimeMs = 100; | |
261 overuse_detector_->FrameCaptured(kWidth, kHeight, 33); | |
262 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
263 overuse_detector_->FrameSent(33); | |
264 EXPECT_EQ(-1, overuse_detector_->LastProcessingTimeMs()); | |
265 } | |
266 | |
267 TEST_F(OveruseFrameDetectorTest, FrameDelay_OneFrame) { | |
268 options_.enable_extended_processing_usage = true; | |
269 ReinitializeOveruseDetector(); | |
270 const int kProcessingTimeMs = 100; | |
271 overuse_detector_->FrameCaptured(kWidth, kHeight, 33); | |
272 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
273 EXPECT_EQ(-1, overuse_detector_->LastProcessingTimeMs()); | |
274 overuse_detector_->FrameSent(33); | |
275 EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); | |
276 EXPECT_EQ(0, overuse_detector_->FramesInQueue()); | |
277 } | |
278 | |
279 TEST_F(OveruseFrameDetectorTest, FrameDelay_TwoFrames) { | |
280 options_.enable_extended_processing_usage = true; | |
281 ReinitializeOveruseDetector(); | |
282 const int kProcessingTimeMs1 = 100; | |
283 const int kProcessingTimeMs2 = 50; | |
284 const int kTimeBetweenFramesMs = 200; | |
285 overuse_detector_->FrameCaptured(kWidth, kHeight, 33); | |
286 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs1); | |
287 overuse_detector_->FrameSent(33); | |
288 EXPECT_EQ(kProcessingTimeMs1, overuse_detector_->LastProcessingTimeMs()); | |
289 clock_->AdvanceTimeMilliseconds(kTimeBetweenFramesMs); | |
290 overuse_detector_->FrameCaptured(kWidth, kHeight, 66); | |
291 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs2); | |
292 overuse_detector_->FrameSent(66); | |
293 EXPECT_EQ(kProcessingTimeMs2, overuse_detector_->LastProcessingTimeMs()); | |
294 } | |
295 | |
296 TEST_F(OveruseFrameDetectorTest, FrameDelay_MaxQueueSize) { | |
297 options_.enable_extended_processing_usage = true; | |
298 ReinitializeOveruseDetector(); | |
299 const int kMaxQueueSize = 91; | |
300 for (int i = 0; i < kMaxQueueSize * 2; ++i) { | |
301 overuse_detector_->FrameCaptured(kWidth, kHeight, i); | |
302 } | |
303 EXPECT_EQ(kMaxQueueSize, overuse_detector_->FramesInQueue()); | |
304 } | |
305 | |
306 TEST_F(OveruseFrameDetectorTest, FrameDelay_NonProcessedFramesRemoved) { | |
307 options_.enable_extended_processing_usage = true; | |
308 ReinitializeOveruseDetector(); | |
309 const int kProcessingTimeMs = 100; | |
310 overuse_detector_->FrameCaptured(kWidth, kHeight, 33); | |
311 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
312 overuse_detector_->FrameCaptured(kWidth, kHeight, 35); | |
313 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
314 overuse_detector_->FrameCaptured(kWidth, kHeight, 66); | |
315 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
316 overuse_detector_->FrameCaptured(kWidth, kHeight, 99); | |
317 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
318 EXPECT_EQ(-1, overuse_detector_->LastProcessingTimeMs()); | |
319 EXPECT_EQ(4, overuse_detector_->FramesInQueue()); | |
320 overuse_detector_->FrameSent(66); | |
321 // Frame 33, 35 removed, 66 processed, 99 not processed. | |
322 EXPECT_EQ(2 * kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); | |
323 EXPECT_EQ(1, overuse_detector_->FramesInQueue()); | |
324 overuse_detector_->FrameSent(99); | |
325 EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); | |
326 EXPECT_EQ(0, overuse_detector_->FramesInQueue()); | |
327 } | |
328 | |
329 TEST_F(OveruseFrameDetectorTest, FrameDelay_ResetClearsFrames) { | |
330 options_.enable_extended_processing_usage = true; | |
331 ReinitializeOveruseDetector(); | |
332 const int kProcessingTimeMs = 100; | |
333 overuse_detector_->FrameCaptured(kWidth, kHeight, 33); | |
334 EXPECT_EQ(1, overuse_detector_->FramesInQueue()); | |
335 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
336 // Verify reset (resolution changed). | |
337 overuse_detector_->FrameCaptured(kWidth, kHeight + 1, 66); | |
338 EXPECT_EQ(1, overuse_detector_->FramesInQueue()); | |
339 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
340 overuse_detector_->FrameSent(66); | |
341 EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); | |
342 EXPECT_EQ(0, overuse_detector_->FramesInQueue()); | |
343 } | |
344 | |
345 TEST_F(OveruseFrameDetectorTest, FrameDelay_NonMatchingSendFrameIgnored) { | |
346 options_.enable_extended_processing_usage = true; | |
347 ReinitializeOveruseDetector(); | |
348 const int kProcessingTimeMs = 100; | |
349 overuse_detector_->FrameCaptured(kWidth, kHeight, 33); | |
350 clock_->AdvanceTimeMilliseconds(kProcessingTimeMs); | |
351 overuse_detector_->FrameSent(34); | |
352 EXPECT_EQ(-1, overuse_detector_->LastProcessingTimeMs()); | |
353 overuse_detector_->FrameSent(33); | |
354 EXPECT_EQ(kProcessingTimeMs, overuse_detector_->LastProcessingTimeMs()); | |
355 } | |
356 | |
357 // enable_encode_usage_method = true; | |
358 // enable_extended_processing_usage = true; | |
359 // UsagePercent() > high_encode_usage_threshold_percent => overuse. | |
360 // UsagePercent() < low_encode_usage_threshold_percent => underuse. | |
361 TEST_F(OveruseFrameDetectorTest, TriggerOveruseWithExtendedProcessingUsage) { | |
362 options_.enable_extended_processing_usage = true; | |
363 ReinitializeOveruseDetector(); | |
364 // usage > high => overuse | |
365 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); | |
366 TriggerOveruse(options_.high_threshold_consecutive_count); | |
367 } | |
368 | |
369 TEST_F(OveruseFrameDetectorTest, OveruseAndRecoverWithExtendedProcessingUsage) { | |
370 options_.enable_extended_processing_usage = true; | |
371 ReinitializeOveruseDetector(); | |
372 // usage > high => overuse | |
373 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(1); | |
374 TriggerOveruse(options_.high_threshold_consecutive_count); | |
375 // usage < low => underuse | |
376 EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(testing::AtLeast(1)); | |
377 TriggerUnderuse(); | |
378 } | |
379 | |
380 TEST_F(OveruseFrameDetectorTest, | |
381 OveruseAndRecoverWithExtendedProcessingUsageMethodDisabled) { | |
382 options_.enable_encode_usage_method = false; | |
383 options_.enable_extended_processing_usage = true; | |
384 ReinitializeOveruseDetector(); | |
385 // usage > high => overuse | |
386 EXPECT_CALL(*(observer_.get()), OveruseDetected()).Times(0); | |
387 TriggerOveruse(options_.high_threshold_consecutive_count); | |
388 // usage < low => underuse | |
389 EXPECT_CALL(*(observer_.get()), NormalUsage()).Times(0); | |
390 TriggerUnderuse(); | |
391 } | |
392 | |
393 } // namespace webrtc | |
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