audio_manager_linux.cc revision f2477e01787aa58f445919b809d89e252beef54f 
1// Copyright (c) 2012 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.
4
5#include "base/command_line.h"
6#include "base/metrics/histogram.h"
7#if defined(USE_ALSA)
8#include "media/audio/alsa/audio_manager_alsa.h"
9#else
10#include "media/audio/fake_audio_manager.h"
11#endif
12#if defined(USE_CRAS)
13#include "media/audio/cras/audio_manager_cras.h"
14#endif
15#if defined(USE_PULSEAUDIO)
16#include "media/audio/pulse/audio_manager_pulse.h"
17#endif
18#include "media/base/media_switches.h"
19
20namespace media {
21
22enum LinuxAudioIO {
23  kPulse,
24  kAlsa,
25  kCras,
26  kAudioIOMax  // Must always be last!
27};
28
29AudioManager* CreateAudioManager() {
30#if defined(USE_CRAS)
31  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseCras)) {
32    UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kCras, kAudioIOMax);
33    return new AudioManagerCras();
34  }
35#endif
36
37#if defined(USE_PULSEAUDIO)
38  AudioManager* manager = AudioManagerPulse::Create();
39  if (manager) {
40    UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kPulse, kAudioIOMax);
41    return manager;
42  }
43#endif
44
45#if defined(USE_ALSA)
46  UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kAlsa, kAudioIOMax);
47  return new AudioManagerAlsa();
48#else
49  return new FakeAudioManager();
50#endif
51}
52
53}  // namespace media
54