gstreamer/gst/volume/filter.func

{
  guint j;
  gint16 vol_i = filter->volume_i;
  gfloat vol_f = filter->volume_f;
  
  switch (filter->format) {
  case GST_VOLUME_FORMAT_INT:
    if (filter->muted) vol_i = 0;
    
    for (j = 0; j < num_samples; j++) {
      data[j] = (gint16) (((gint32)vol_i) * ((gint32)data[j]) / 8192);
    }
    break;
  case GST_VOLUME_FORMAT_FLOAT:
    if (filter->muted) vol_f = 0;
    
    for (j = 0; j < num_samples; j++) {
      data[j] *= vol_f;
    }
    break;
  default:
    g_warning("volume: filter.func: no format, aborting");
    break;
  }
}