let ahdr = NAAudioInfo::new(srate, channels, SND_S16P_FORMAT, 1);
let ainfo = NACodecInfo::new("wavpack", NACodecTypeInfo::Audio(ahdr), Some(buf.clone()));
let ahdr = NAAudioInfo::new(srate, channels, SND_S16P_FORMAT, 1);
let ainfo = NACodecInfo::new("wavpack", NACodecTypeInfo::Audio(ahdr), Some(buf.clone()));