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      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 (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
     54