int main(void)
{
AUDIOINFO info;
AUDIOCAPS caps;
UINT rc, nDevId;
/* initialize audio library */
AInitialize();
/* show registered device drivers */
printf("List of registered devices:\n");
for (nDevId = 0; nDevId < AGetAudioNumDevs(); nDevId++) {
AGetAudioDevCaps(nDevId, &caps);
printf(" %2d. %s\n", nDevId, caps.szProductName);
}
printf("\n");
/*
* NOTE: Here we can use any of the above devices, or we can
* use the virtual device AUDIO_DEVICE_MAPPER for detection.
*/
/* open audio device */
info.nDeviceId = AUDIO_DEVICE_MAPPER;
info.wFormat = AUDIO_FORMAT_16BITS | AUDIO_FORMAT_STEREO;
info.nSampleRate = 44100;
if ((rc = AOpenAudio(&info)) != AUDIO_ERROR_NONE) {
CHAR szText[80];
AGetErrorText(rc, szText, sizeof(szText) - 1);
printf("ERROR: %s\n", szText);
exit(1);
}
/*
* NOTE: Since the audio device may not support the playback
* format and sampling frequency, the audio system uses the
* closest configuration which is then returned to the user
* in the AUDIOINFO structure.
*
*/
/* print information */
AGetAudioDevCaps(info.nDeviceId, &caps);
printf("%s at %d-bit %s %u Hz detected\n",
caps.szProductName,
info.wFormat & AUDIO_FORMAT_16BITS ? 16 : 8,
info.wFormat & AUDIO_FORMAT_STEREO ? "stereo" : "mono",
info.nSampleRate);
/* close audio device */
ACloseAudio();
return 0;
}
static void printAudioError(Audio *audio,char *message,int errorCode) {
char errorbuff[132];
AGetErrorText(audio, errorCode, errorbuff, 131);
error2("%s: %s", message, errorbuff);
}
static void
logAudioError (int level, long status, const char *action) {
char message[132];
AGetErrorText(audioServer, status, message, sizeof(message)-1);
logMessage(level, "%s error %ld: %s", action, status, message);
}
