qint16* pcm = static_cast<qint16*>(mlt_frame->get_audio(audioFormat, frequency, channels, samples));
for (int c = 0; c < channels; c++) {
QByteArray audioArray;
qint16* pcm = static_cast<qint16*>(mlt_frame->get_audio(audioFormat, frequency, channels, samples));
for (int c = 0; c < channels; c++) {
QByteArray audioArray;