media/audio/linux/audio_manager_linux.cc

   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
  20 namespace media {
  21
  22 enum LinuxAudioIO {
  23   kPulse,
  24   kAlsa,
  25   kCras,
  26   kAudioIOMax = kCras  // Must always be equal to largest logged entry.
  27 };
  28
  29 AudioManager* CreateAudioManager(AudioLogFactory* audio_log_factory) {
  30 #if defined(USE_CRAS)
  31   if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseCras)) {
  32     UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kCras, kAudioIOMax + 1);
  33     return new AudioManagerCras(audio_log_factory);
  34   }
  35 #endif
  36
  37 #if defined(USE_PULSEAUDIO)
  38   AudioManager* manager = AudioManagerPulse::Create(audio_log_factory);
  39   if (manager) {
  40     UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kPulse, kAudioIOMax + 1);
  41     return manager;
  42   }
  43 #endif
  44
  45 #if defined(USE_ALSA)
  46   UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kAlsa, kAudioIOMax + 1);
  47   return new AudioManagerAlsa(audio_log_factory);
  48 #else
  49   return new FakeAudioManager(audio_log_factory);
  50 #endif
  51 }
  52
  53 }  // namespace media