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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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