let vinfo = self.info.get_properties().get_video_info().unwrap();
let bufret = alloc_video_buffer(vinfo, 2);
if let Err(_) = bufret { return Err(DecoderError::InvalidData); }
let vinfo = self.info.get_properties().get_video_info().unwrap();
let bufret = alloc_video_buffer(vinfo, 2);
if let Err(_) = bufret { return Err(DecoderError::InvalidData); }