- void slotDistributeFrame(QImage image);
- void slotDistributeAudio(QVector<int16_t> sampleData, int freq, int num_channels, int num_samples);
+ void slotDistributeFrame(const QImage &image);
+ void slotDistributeAudio(const QVector<int16_t> &sampleData, int freq, int num_channels, int num_samples);