1 /* 2 * Copyright (c) 2016 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 #ifndef MODULES_AUDIO_PROCESSING_TEST_PERFORMANCE_TIMER_H_ 12 #define MODULES_AUDIO_PROCESSING_TEST_PERFORMANCE_TIMER_H_ 13 14 #include <vector> 15 16 #include "absl/types/optional.h" 17 #include "system_wrappers/include/clock.h" 18 19 namespace webrtc { 20 namespace test { 21 22 class PerformanceTimer { 23 public: 24 explicit PerformanceTimer(int num_frames_to_process); 25 ~PerformanceTimer(); 26 27 void StartTimer(); 28 void StopTimer(); 29 30 double GetDurationAverage() const; 31 double GetDurationStandardDeviation() const; 32 33 // These methods are the same as those above, but they ignore the first 34 // |number_of_warmup_samples| measurements. 35 double GetDurationAverage(size_t number_of_warmup_samples) const; 36 double GetDurationStandardDeviation(size_t number_of_warmup_samples) const; 37 38 private: 39 webrtc::Clock* clock_; 40 absl::optional<int64_t> start_timestamp_us_; 41 std::vector<int64_t> timestamps_us_; 42 }; 43 44 } // namespace test 45 } // namespace webrtc 46 47 #endif // MODULES_AUDIO_PROCESSING_TEST_PERFORMANCE_TIMER_H_ 48