QT6.5.1 Memory leak with function

[287662354]

i dont know y there is Memory leak,at start i limited decode times, but always
` connect(main_videoSink, &QVideoSink::videoFrameChanged,
[this](const QVideoFrame &frame){

  if(QR_image_flag)
  {
        QR_image = frame.toImage();
         QZXing  decoder ;
        //必要设置
        //  decoder.setDecoder(QZXing::DecoderFormat_QR_CODE | QZXing::DecoderFormat_EAN_13 );
        decoder.setDecoder(QZXing::DecoderFormat_QR_CODE );

        //可选设置
        //decoder.setSourceFilterType(QZXing::SourceFilter_ImageNormal | QZXing::SourceFilter_ImageInverted);
        decoder.setSourceFilterType(QZXing::SourceFilter_ImageNormal);
        decoder.setTryHarderBehaviour(QZXing::TryHarderBehaviour_ThoroughScanning |
                                       QZXing::TryHarderBehaviour_Rotate);


        //  QR_image = QR_image.convertToFormat(QImage::Format_Indexed8);
        //解码
        QString result;
        result  = decoder.decodeImage(frame.toImage());

      //  qDebug()<<"解码内容是"<<result;
        //  scene->addPixmap(QPixmap::fromImage(frame.toImage().scaled(QSize(90, 130))));
        // g_tmp->setScene(scene);

        // QR_image_flag=0;
        if(!result.isEmpty())
        {

// player->setAudioOutput(audioOutput );
// audioOutput->setVolume(0.5); //调节音频音量
// player->setSource(QUrl("qrc:/image/qrcode.mp3"));
// player->play();
qDebug()<<"播放";

         //   emit QR_scan_end();
            //  return;
        }
  }`