Audio test code for SDL2_Mixer in nim

gistfile1.nim

#test audio
var sound : Mix_ChunkPtr

var channel : cint
var audio_rate : cint
var audio_format : uint16
var audio_buffers : cint    = 4096
var audio_channels : cint   = 2

if Mix_OpenAudio(audio_rate, audio_format, audio_channels, audio_buffers) != 0:
    quit("There was a problem")

sound = Mix_LoadWAV("SDL_PlaySound/sound.wav")
if isNil(sound):
    quit("Unable to load wav")

channel = Mix_PlayChannel(-1, sound, 0);
if channel == -1:
    quit("Unable to play WAV sound")
    
while Mix_Playing(channel) != 0:
    discard
    
Mix_FreeChunk(sound)
Mix_CloseAudio();