在Qt Symbian中捕获FM收音机

Question

我正试图用Qt和我的Symbian设备（C7-00 Belle Refresh）捕捉FM收音机，但没有效果，有什么问题？它有可能吗？

Audio Input Routing Symbian API

audiosource = new QAudioCaptureSource(this);
audiosource->setAudioInput("FM Radio");

QAudioEncoderSettings settings;
settings.setCodec("audio/vorbis");
settings.setQuality(QtMultimediaKit::HighQuality);

capture = new QMediaRecorder(audiosource, this);
capture->setEncodingSettings(settings, QVideoEncoderSettings(), "audio/mp4");
capture->setOutputLocation(QUrl('e:/record.mp4'));
capture->record();

QTimer::singleShot(seconds * 1000, capture, SLOT(stop()))