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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "base/time/time.h" | 5 #include "base/time/time.h" |
| 6 #include "media/base/audio_bus.h" | 6 #include "media/base/audio_bus.h" |
| 7 #include "media/base/fake_audio_render_callback.h" | 7 #include "media/base/fake_audio_render_callback.h" |
| 8 #include "testing/gtest/include/gtest/gtest.h" | 8 #include "testing/gtest/include/gtest/gtest.h" |
| 9 #include "testing/perf/perf_test.h" | 9 #include "testing/perf/perf_test.h" |
| 10 | 10 |
| 11 namespace media { | 11 namespace media { |
| 12 | 12 |
| 13 static const int kBenchmarkIterations = 20; | 13 static const int kBenchmarkIterations = 20; |
| 14 | 14 |
| 15 template <typename T> | 15 template <typename T> |
| 16 void RunInterleaveBench(AudioBus* bus, const std::string& trace_name) { | 16 void RunInterleaveBench(AudioBus* bus, const std::string& trace_name) { |
| 17 const int frame_size = bus->frames() * bus->channels(); | 17 const int frame_size = bus->frames() * bus->channels(); |
| 18 scoped_ptr<T[]> interleaved(new T[frame_size]); | 18 scoped_ptr<T[]> interleaved(new T[frame_size]); |
| 19 const int byte_size = sizeof(T); | 19 const int byte_size = sizeof(T); |
| 20 | 20 |
| 21 base::TimeTicks start = base::TimeTicks::HighResNow(); | 21 base::TimeTicks start = base::TimeTicks::Now(); |
| 22 for (int i = 0; i < kBenchmarkIterations; ++i) { | 22 for (int i = 0; i < kBenchmarkIterations; ++i) { |
| 23 bus->ToInterleaved(bus->frames(), byte_size, interleaved.get()); | 23 bus->ToInterleaved(bus->frames(), byte_size, interleaved.get()); |
| 24 } | 24 } |
| 25 double total_time_milliseconds = | 25 double total_time_milliseconds = |
| 26 (base::TimeTicks::HighResNow() - start).InMillisecondsF(); | 26 (base::TimeTicks::Now() - start).InMillisecondsF(); |
| 27 perf_test::PrintResult( | 27 perf_test::PrintResult( |
| 28 "audio_bus_to_interleaved", "", trace_name, | 28 "audio_bus_to_interleaved", "", trace_name, |
| 29 total_time_milliseconds / kBenchmarkIterations, "ms", true); | 29 total_time_milliseconds / kBenchmarkIterations, "ms", true); |
| 30 | 30 |
| 31 start = base::TimeTicks::HighResNow(); | 31 start = base::TimeTicks::Now(); |
| 32 for (int i = 0; i < kBenchmarkIterations; ++i) { | 32 for (int i = 0; i < kBenchmarkIterations; ++i) { |
| 33 bus->FromInterleaved(interleaved.get(), bus->frames(), byte_size); | 33 bus->FromInterleaved(interleaved.get(), bus->frames(), byte_size); |
| 34 } | 34 } |
| 35 total_time_milliseconds = | 35 total_time_milliseconds = |
| 36 (base::TimeTicks::HighResNow() - start).InMillisecondsF(); | 36 (base::TimeTicks::Now() - start).InMillisecondsF(); |
| 37 perf_test::PrintResult( | 37 perf_test::PrintResult( |
| 38 "audio_bus_from_interleaved", "", trace_name, | 38 "audio_bus_from_interleaved", "", trace_name, |
| 39 total_time_milliseconds / kBenchmarkIterations, "ms", true); | 39 total_time_milliseconds / kBenchmarkIterations, "ms", true); |
| 40 } | 40 } |
| 41 | 41 |
| 42 // Benchmark the FromInterleaved() and ToInterleaved() methods. | 42 // Benchmark the FromInterleaved() and ToInterleaved() methods. |
| 43 TEST(AudioBusPerfTest, Interleave) { | 43 TEST(AudioBusPerfTest, Interleave) { |
| 44 scoped_ptr<AudioBus> bus = AudioBus::Create(2, 48000 * 120); | 44 scoped_ptr<AudioBus> bus = AudioBus::Create(2, 48000 * 120); |
| 45 FakeAudioRenderCallback callback(0.2); | 45 FakeAudioRenderCallback callback(0.2); |
| 46 callback.Render(bus.get(), 0); | 46 callback.Render(bus.get(), 0); |
| 47 | 47 |
| 48 RunInterleaveBench<int8>(bus.get(), "int8"); | 48 RunInterleaveBench<int8>(bus.get(), "int8"); |
| 49 RunInterleaveBench<int16>(bus.get(), "int16"); | 49 RunInterleaveBench<int16>(bus.get(), "int16"); |
| 50 RunInterleaveBench<int32>(bus.get(), "int32"); | 50 RunInterleaveBench<int32>(bus.get(), "int32"); |
| 51 } | 51 } |
| 52 | 52 |
| 53 } // namespace media | 53 } // namespace media |
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