let mut ibr = RealVideo20BR::new(&src, &self.tables, self.w, self.h, self.minor_ver, self.rpr);
let bufinfo = self.dec.parse_frame(&mut ibr, &self.bdsp)?;
let mut ibr = RealVideo20BR::new(&src, &self.tables, self.w, self.h, self.minor_ver, self.rpr);
let bufinfo = self.dec.parse_frame(&mut ibr, &self.bdsp)?;