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sndlib/audio.c  view on Meta::CPAN

static char *audio_error_name_1(int err)
{
  switch (err)
    {
    case SNDLIB_NO_ERROR:                    return("");                            break;
    case SNDLIB_CHANNELS_NOT_AVAILABLE:      return("channel(s) not available");    break;
    case SNDLIB_SRATE_NOT_AVAILABLE:         return("srate not available");         break;
    case SNDLIB_FORMAT_NOT_AVAILABLE:        return("format not available");        break;
    case SNDLIB_NO_INPUT_AVAILABLE:          return("no input available");          break;
    case SNDLIB_NO_OUTPUT_AVAILABLE:         return("no output available");         break;
    case SNDLIB_INPUT_BUSY:                  return("input busy");                  break;
    case SNDLIB_OUTPUT_BUSY:                 return("output busy");                 break;
    case SNDLIB_CONFIGURATION_NOT_AVAILABLE: return("configuration not available"); break;
    case SNDLIB_INPUT_CLOSED:                return("input closed");                break;
    case SNDLIB_OUTPUT_CLOSED:               return("output closed");               break;
    case SNDLIB_IO_INTERRUPTED:              return("io interrupted");              break;
    case SNDLIB_NO_LINES_AVAILABLE:          return("no lines available");          break;
    case SNDLIB_WRITE_ERROR:                 return("write error");                 break;
    case SNDLIB_SIZE_NOT_AVAILABLE:          return("size not available");          break;
    case SNDLIB_DEVICE_NOT_AVAILABLE:        return("device not available");        break;
    case SNDLIB_CANT_CLOSE:                  return("close failed");                break;
    case SNDLIB_CANT_OPEN:                   return("open failed");                 break;

sndlib/audio.c  view on Meta::CPAN

	   *   find volume field, if none, go on, else read current volume
	   *   open next unchecked dsp, try to set volume, read current, if different we found a match -- set and go on.
	   *     if no change, move to next dsp and try again, if no more dsps, quit (checking for null case as before)
	   */
	  sprintf(dname,"%s%d",MIXER_NAME,nmix);
	  md = open(dname,O_RDWR|O_NONBLOCK,0);
	  if (md == -1)
	    {
	      if (errno == EBUSY) 
		{
		  fprintf(stderr,"%s is busy: can't access it",dname); 
		  nmix++;
		  continue;
		}
	      else break;
	    }
	  sprintf(dname,"%s%d",DAC_NAME,ndsp);
	  fd = open(dname,O_RDWR|O_NONBLOCK,0);
	  if (fd == -1) fd = open(dname,O_RDONLY|O_NONBLOCK,0);
	  if (fd == -1) fd = open(dname,O_WRONLY|O_NONBLOCK,0); /* some output devices need this */
	  if (fd == -1)
	    {
	      close(md); 
	      if (errno == EBUSY) /* in linux /usr/include/asm/errno.h */
		{
		  fprintf(stderr,"%s is busy: can't access it\n",dname); 
		  ndsp++;
		  continue;
		}
	      else 
		{
		  if (errno != ENXIO && errno != ENODEV)
		    fprintf(stderr,"%s: %s! ",dname,strerror(errno));
		  break;
		}
	    }

sndlib/audio.c  view on Meta::CPAN

}

int initialize_audio(void) {AUDIO_ERROR = SNDLIB_NO_ERROR; return(0);}

char *audio_error_name(int err) {return(audio_error_name_1(err));}
int audio_systems(void) {return(1);}
char *audio_system_name(int system) {return("HPUX");}

/* struct audio_status status_b;
 * ioctl(devAudio, AUDIO_GET_STATUS, &status_b)
 * not_busy = (status_b.transmit_status == AUDIO_DONE);
*/

int open_audio_input(int ur_dev, int srate, int chans, int format, int size) 
{
  int fd,i,dev;
  struct audio_describe desc;
  AUDIO_ERROR = SNDLIB_NO_ERROR;
  dev = SNDLIB_DEVICE(ur_dev);
  fd = open("/dev/audio",O_RDWR);
  if (fd == -1) {AUDIO_ERROR = SNDLIB_CANT_OPEN; return(-1);}