| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "base/time/time.h" |
| #include "media/base/audio_bus.h" |
| #include "media/base/fake_audio_render_callback.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "testing/perf/perf_test.h" |
| |
| namespace media { |
| |
| static const int kBenchmarkIterations = 20; |
| |
| template <typename T> |
| void RunInterleaveBench(AudioBus* bus, const std::string& trace_name) { |
| const int frame_size = bus->frames() * bus->channels(); |
| scoped_ptr<T[]> interleaved(new T[frame_size]); |
| const int byte_size = sizeof(T); |
| |
| base::TimeTicks start = base::TimeTicks::HighResNow(); |
| for (int i = 0; i < kBenchmarkIterations; ++i) { |
| bus->ToInterleaved(bus->frames(), byte_size, interleaved.get()); |
| } |
| double total_time_milliseconds = |
| (base::TimeTicks::HighResNow() - start).InMillisecondsF(); |
| perf_test::PrintResult( |
| "audio_bus_to_interleaved", "", trace_name, |
| total_time_milliseconds / kBenchmarkIterations, "ms", true); |
| |
| start = base::TimeTicks::HighResNow(); |
| for (int i = 0; i < kBenchmarkIterations; ++i) { |
| bus->FromInterleaved(interleaved.get(), bus->frames(), byte_size); |
| } |
| total_time_milliseconds = |
| (base::TimeTicks::HighResNow() - start).InMillisecondsF(); |
| perf_test::PrintResult( |
| "audio_bus_from_interleaved", "", trace_name, |
| total_time_milliseconds / kBenchmarkIterations, "ms", true); |
| } |
| |
| // Benchmark the FromInterleaved() and ToInterleaved() methods. |
| TEST(AudioBusPerfTest, Interleave) { |
| scoped_ptr<AudioBus> bus = AudioBus::Create(2, 48000 * 120); |
| FakeAudioRenderCallback callback(0.2); |
| callback.Render(bus.get(), 0); |
| |
| RunInterleaveBench<int8>(bus.get(), "int8"); |
| RunInterleaveBench<int16>(bus.get(), "int16"); |
| RunInterleaveBench<int32>(bus.get(), "int32"); |
| } |
| |
| } // namespace media |