QUIC - use size_t for kMaxInitialRoundTripTimeUs.
[chromium-blink-merge.git] / media / base / audio_bus_perftest.cc
blobe4152fdfc6a59c9941dc888e6991dd57642b7f0c
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
3 // found in the LICENSE file.
5 #include "base/time/time.h"
6 #include "media/base/audio_bus.h"
7 #include "media/base/fake_audio_render_callback.h"
8 #include "testing/gtest/include/gtest/gtest.h"
9 #include "testing/perf/perf_test.h"
11 namespace media {
13 static const int kBenchmarkIterations = 100;
15 template <typename T>
16 void RunInterleaveBench(AudioBus* bus, const std::string& trace_name) {
17 const int frame_size = bus->frames() * bus->channels();
18 scoped_ptr<T> interleaved(new T[frame_size]);
19 const int byte_size = sizeof(*interleaved);
21 base::TimeTicks start = base::TimeTicks::HighResNow();
22 for (int i = 0; i < kBenchmarkIterations; ++i) {
23 bus->ToInterleaved(bus->frames(), byte_size, interleaved.get());
25 double total_time_seconds =
26 (base::TimeTicks::HighResNow() - start).InSecondsF();
27 perf_test::PrintResult(
28 "audio_bus_to_interleaved", "", trace_name,
29 kBenchmarkIterations / total_time_seconds, "runs/s", true);
31 start = base::TimeTicks::HighResNow();
32 for (int i = 0; i < kBenchmarkIterations; ++i) {
33 bus->FromInterleaved(interleaved.get(), bus->frames(), byte_size);
35 total_time_seconds = (base::TimeTicks::HighResNow() - start).InSecondsF();
36 perf_test::PrintResult(
37 "audio_bus_from_interleaved", "", trace_name,
38 kBenchmarkIterations / total_time_seconds, "runs/s", true);
41 // Benchmark the FromInterleaved() and ToInterleaved() methods.
42 TEST(AudioBusPerfTest, Interleave) {
43 scoped_ptr<AudioBus> bus = AudioBus::Create(2, 48000 * 120);
44 FakeAudioRenderCallback callback(0.2);
45 callback.Render(bus.get(), 0);
47 RunInterleaveBench<int8>(bus.get(), "int8");
48 RunInterleaveBench<int16>(bus.get(), "int16");
49 RunInterleaveBench<int32>(bus.get(), "int32");
52 } // namespace media