A couple of simple tools to identify enabled sound drivers for SDL1 and SDL2.

• sdl1/probe_audio will probe all known audio drivers for SDL1 and show, if they exist (compiled into SDL) or missing (not compiled).

• sdl2/list_audio will just list all audio drivers compiled into SDL2.

$ make -C sdl1 clean all
$ make -C sdl2 clean all

Obviously, each of binaries require corresponding version of SDL to be installed, and its sdl-config or sdl2-config to be available.

You may skip building one of them, if you don't have either SDL1 or SDL2, and you wish to check only one of them which is installed.

$ sdl1/probe_audio

Audio driver dsp:       exist
Audio driver dma:       missing
Audio driver esd:       missing
Audio driver artsc:     missing
Audio driver pulse:     exist
Audio driver alsa:      missing
Audio driver arts:      missing

$ sdl2/list_audio

Audio driver 0: pulseaudio
Audio driver 1: alsa
Audio driver 2: dsp
Audio driver 3: esd
Audio driver 4: disk
Audio driver 5: dummy