簡單的例子如下:
#include <stdio.h>
#include <ao/ao.h>
#include <sndfile.h>
#include <math.h>
int main(int argc, char **argv)
{
SNDFILE* infile = 0;
SF_INFO sfinfo;
int readcount;
int rate = 44100;
int channels = 2;
if(!(infile = sf_open("rock.wav",SFM_READ,&sfinfo)))
{
return 1 ;
};
rate = sfinfo.samplerate;
printf("rate %d\n",rate);
channels = sfinfo.channels;
printf("channels %d\n",channels);
printf("format %d\n",sfinfo.format);
short data[4096];
ao_device *device;
ao_sample_format format;
int default_driver;
int i;
ao_initialize();
default_driver = ao_default_driver_id();
memset(&format, 0, sizeof(format));
format.bits = 16;
format.channels = channels;
format.rate = rate;
format.byte_format = AO_FMT_LITTLE;
device = ao_open_live(default_driver,&format, NULL);
if(device == NULL)
{
fprintf(stderr,"error opening device.\n");
return 1;
}
while((readcount = sf_read_short(infile,data,4096)))
{
ao_play(device,data,readcount*2);
};
sf_close (infile) ;
ao_close(device);
ao_shutdown();
return (0);
}