#include "SDL.h"

static void mix_channels(void *udata, Uint8 *stream, int len)
{
	memset(stream, '\0', len);
}

static void PrintFormat(char *title, SDL_AudioSpec *fmt)
{ 
	printf("%s: %d bit %s audio (%s) at %u Hz\n", title, (fmt->format&0xFF),
			(fmt->format&0x8000) ? "signed" : "unsigned",
			(fmt->channels > 2) ? "surround" :
			(fmt->channels > 1) ? "stereo" : "mono", fmt->freq);
}

int main(int argc, char **argv)
{
	SDL_AudioSpec desired, obtained;

	if (SDL_Init(SDL_INIT_AUDIO) == -1)
	{
		fprintf(stderr, "SDL_Init(SDL_INIT_AUDIO) failed: %s\n", SDL_GetError());
		return 1;
	}

	desired.freq = 44100;
	desired.format = AUDIO_S16LSB;
	desired.channels = 2; 
	desired.samples = 4096;
	desired.callback = mix_channels;
	desired.userdata = NULL;

	if ( SDL_OpenAudio(&desired, &obtained) < 0 )
	{
		fprintf(stderr, "SDL_OpenAudio() failed: %s\n", SDL_GetError());
		return 1;
	}

	PrintFormat("desired", &desired);
	PrintFormat("obtained", &obtained);

	SDL_Quit();
	return 0;
}