A value used to request a default playback audio device.
Defined in <SDL3/SDL_audio.h>
#define SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK ((SDL_AudioDeviceID) 0xFFFFFFFFu)
Several functions that require an SDL_AudioDeviceID will accept this value to signify the app just wants the system to choose a default device instead of the app providing a specific one.
This macro is available since SDL 3.1.3.