if self.aname != "none" {
let ahdr = NAAudioInfo::new(self.a_den, 1, SND_S16_FORMAT, self.a_num as usize);
let ainfo = NACodecInfo::new(self.aname, NACodecTypeInfo::Audio(ahdr), None);
if self.aname != "none" {
let ahdr = NAAudioInfo::new(self.a_den, 1, SND_S16_FORMAT, self.a_num as usize);
let ainfo = NACodecInfo::new(self.aname, NACodecTypeInfo::Audio(ahdr), None);