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28 #ifndef TALK_SOUND_LINUXSOUNDSYSTEM_H_
29 #define TALK_SOUND_LINUXSOUNDSYSTEM_H_
31 #include "talk/sound/automaticallychosensoundsystem.h"
35 extern const SoundSystemCreator kLinuxSoundSystemCreators[
43 // The vast majority of Linux systems use ALSA for the device-level sound API,
44 // but an increasing number are using PulseAudio for the application API and
45 // only using ALSA internally in PulseAudio itself. But like everything on
46 // Linux this is user-configurable, so we need to support both and choose the
47 // right one at run-time.
48 // PulseAudioSoundSystem is designed to only successfully initialize if
49 // PulseAudio is installed and running, and if it is running then direct device
50 // access using ALSA typically won't work, so if PulseAudioSoundSystem
51 // initializes then we choose that. Otherwise we choose ALSA.
52 typedef AutomaticallyChosenSoundSystem<
53 kLinuxSoundSystemCreators,
54 ARRAY_SIZE(kLinuxSoundSystemCreators)> LinuxSoundSystem;
56 } // namespace cricket
58 #endif // TALK_SOUND_LINUXSOUNDSYSTEM_H_