QCamera Android Crash
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@ QCameraViewfinder * viewFinder;
QCamera * camera;
QAbstractVideoSurface * surface;QList<QCameraInfo> cameras = QCameraInfo::availableCameras(); foreach (const QCameraInfo &cameraInfo, cameras) { if(cameraInfo.deviceName()=="front") { camera = new QCamera(cameraInfo); qDebug() << "found cam"; } } viewFinder = new QCameraViewfinder; camera->setViewfinder(viewFinder); //ui->webBox->layout()->addWidget(viewFinder); viewFinder->show(); camera->start();@
It does not matter if I use the QCameraViewfinder or QAbstractVideoSurface, once the camera is started, the application crashes. Any ideas are welcome :)
(void MainWindow::openScanner()): found cam
Fatal signal 11 (SIGSEGV) at 0x00000005 (code=1), thread 15692 -
just tested, it crashes @ camera->setViewfinder(viewFinder);
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Hi,
So it's not when the camera starts, right ?
Are you sure that camera is really valid at this time ?
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It was a problem with the viewfinder/surface attached. Anyway now it crashes when the camera starts. I'm now trying to port the C++ version of the camera example to properly work on android, since I do not care about a live preview I'll try to re-render images as they come to the surface. If anyone already got a working example it would be much appreciated :)
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Just thought about something, IIRC you would need to use QML to have a preview on Android
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using QML is not an option right now, this should be purely C++/Qt. Grabbing single images from the surface and displaying them in a Label should do the trick :)