void tst_QCameraBackend::testCameraStates()
{
QCamera camera;
QCameraImageCapture imageCapture(&camera);
QSignalSpy errorSignal(&camera, SIGNAL(error(QCamera::Error)));
QSignalSpy stateChangedSignal(&camera, SIGNAL(stateChanged(QCamera::State)));
QSignalSpy statusChangedSignal(&camera, SIGNAL(statusChanged(QCamera::Status)));
QCOMPARE(camera.state(), QCamera::UnloadedState);
QCOMPARE(camera.status(), QCamera::UnloadedStatus);
camera.load();
QCOMPARE(camera.state(), QCamera::LoadedState);
QCOMPARE(stateChangedSignal.count(), 1);
QCOMPARE(stateChangedSignal.last().first().value<QCamera::State>(), QCamera::LoadedState);
QVERIFY(stateChangedSignal.count() > 0);
QTRY_COMPARE(camera.status(), QCamera::LoadedStatus);
QCOMPARE(statusChangedSignal.last().first().value<QCamera::Status>(), QCamera::LoadedStatus);
camera.unload();
QCOMPARE(camera.state(), QCamera::UnloadedState);
QCOMPARE(stateChangedSignal.last().first().value<QCamera::State>(), QCamera::UnloadedState);
QTRY_COMPARE(camera.status(), QCamera::UnloadedStatus);
QCOMPARE(statusChangedSignal.last().first().value<QCamera::Status>(), QCamera::UnloadedStatus);
#ifdef Q_WS_MAEMO_6
//resource policy doesn't work correctly when resource is released and immediately requested again.
QTest::qWait(250);
#endif
camera.start();
QCOMPARE(camera.state(), QCamera::ActiveState);
QCOMPARE(stateChangedSignal.last().first().value<QCamera::State>(), QCamera::ActiveState);
QTRY_COMPARE(camera.status(), QCamera::ActiveStatus);
QCOMPARE(statusChangedSignal.last().first().value<QCamera::Status>(), QCamera::ActiveStatus);
camera.stop();
QCOMPARE(camera.state(), QCamera::LoadedState);
QCOMPARE(stateChangedSignal.last().first().value<QCamera::State>(), QCamera::LoadedState);
QTRY_COMPARE(camera.status(), QCamera::LoadedStatus);
QCOMPARE(statusChangedSignal.last().first().value<QCamera::Status>(), QCamera::LoadedStatus);
camera.unload();
QCOMPARE(camera.state(), QCamera::UnloadedState);
QCOMPARE(stateChangedSignal.last().first().value<QCamera::State>(), QCamera::UnloadedState);
QTRY_COMPARE(camera.status(), QCamera::UnloadedStatus);
QCOMPARE(statusChangedSignal.last().first().value<QCamera::Status>(), QCamera::UnloadedStatus);
QCOMPARE(camera.errorString(), QString());
QCOMPARE(errorSignal.count(), 0);
}
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
QList<QByteArray> devices = QCamera::availableDevices();
// QGPhotoServicePlugin s;
// devices = s.devices(Q_MEDIASERVICE_CAMERA);
for (QList<QByteArray>::Iterator i = devices.begin(); i != devices.end(); i ++) {
QByteArray current = *i;
cout << QString(current).toStdString() << "\n";
}
cout << "### New camera\n";
cout.flush();
QCamera *camera = new QCamera(devices[1]);
cout << "### Camera device description\n";
cout.flush();
QString description = camera->deviceDescription(devices.at(1)); //
std::cout << description.toStdString() << "\n";
QCameraImageCapture *imageCapture = new QCameraImageCapture(camera); // Object to take pictures
camera->setCaptureMode(QCamera::CaptureStillImage); // Set the camera mode
cout << "### Start camera\n";
cout.flush();
camera->start();
/*
camera->searchAndLock();
imageCapture->capture(QString('/tmp/test.jpg')); // Method to take a picture. Arg: path to save the picture
camera->unlock();
*/
// imageCapture->capture(QString("/tmp/capture.nef"));
qDebug() << camera->exposure()->supportedApertures();
qDebug() << camera->exposure()->supportedIsoSensitivities();
qDebug() << camera->exposure()->supportedShutterSpeeds();
qDebug() << "Aperture = " << camera->exposure()->aperture();
qDebug() << "Shutter speed = " << camera->exposure()->shutterSpeed();
qDebug() << "ISO = " << camera->exposure()->isoSensitivity();
camera->exposure()->setManualAperture(5.6);
camera->exposure()->setManualShutterSpeed(10.0);
camera->exposure()->setManualIsoSensitivity(800);
cout << "### Stop camera\n";
cout.flush();
camera->stop();
delete imageCapture;
delete camera;
return a.exec();
}
void tst_QCameraBackend::testCaptureMode()
{
QCamera camera;
QSignalSpy errorSignal(&camera, SIGNAL(error(QCamera::Error)));
QSignalSpy stateChangedSignal(&camera, SIGNAL(stateChanged(QCamera::State)));
QSignalSpy captureModeSignal(&camera, SIGNAL(captureModeChanged(QCamera::CaptureModes)));
QCOMPARE(camera.captureMode(), QCamera::CaptureStillImage);
if (!camera.isCaptureModeSupported(QCamera::CaptureVideo)) {
camera.setCaptureMode(QCamera::CaptureVideo);
QCOMPARE(camera.captureMode(), QCamera::CaptureStillImage);
QSKIP("Video capture not supported");
}
camera.setCaptureMode(QCamera::CaptureVideo);
QCOMPARE(camera.captureMode(), QCamera::CaptureVideo);
QTRY_COMPARE(captureModeSignal.size(), 1);
QCOMPARE(captureModeSignal.last().first().value<QCamera::CaptureModes>(), QCamera::CaptureVideo);
captureModeSignal.clear();
camera.load();
QTRY_COMPARE(camera.status(), QCamera::LoadedStatus);
//capture mode should still be video
QCOMPARE(camera.captureMode(), QCamera::CaptureVideo);
//it should be possible to switch capture mode in Loaded state
camera.setCaptureMode(QCamera::CaptureStillImage);
QTRY_COMPARE(captureModeSignal.size(), 1);
QCOMPARE(captureModeSignal.last().first().value<QCamera::CaptureModes>(), QCamera::CaptureStillImage);
captureModeSignal.clear();
camera.setCaptureMode(QCamera::CaptureVideo);
QTRY_COMPARE(captureModeSignal.size(), 1);
QCOMPARE(captureModeSignal.last().first().value<QCamera::CaptureModes>(), QCamera::CaptureVideo);
captureModeSignal.clear();
camera.start();
QTRY_COMPARE(camera.status(), QCamera::ActiveStatus);
//capture mode should still be video
QCOMPARE(camera.captureMode(), QCamera::CaptureVideo);
stateChangedSignal.clear();
//it should be possible to switch capture mode in Active state
camera.setCaptureMode(QCamera::CaptureStillImage);
//camera may leave Active status, but should return to Active
QTest::qWait(10); //camera may leave Active status async
QTRY_COMPARE(camera.status(), QCamera::ActiveStatus);
QCOMPARE(camera.captureMode(), QCamera::CaptureStillImage);
QVERIFY2(stateChangedSignal.isEmpty(), "camera should not change the state during capture mode changes");
QCOMPARE(captureModeSignal.size(), 1);
QCOMPARE(captureModeSignal.last().first().value<QCamera::CaptureModes>(), QCamera::CaptureStillImage);
captureModeSignal.clear();
camera.setCaptureMode(QCamera::CaptureVideo);
//camera may leave Active status, but should return to Active
QTest::qWait(10); //camera may leave Active status async
QTRY_COMPARE(camera.status(), QCamera::ActiveStatus);
QCOMPARE(camera.captureMode(), QCamera::CaptureVideo);
QVERIFY2(stateChangedSignal.isEmpty(), "camera should not change the state during capture mode changes");
QCOMPARE(captureModeSignal.size(), 1);
QCOMPARE(captureModeSignal.last().first().value<QCamera::CaptureModes>(), QCamera::CaptureVideo);
captureModeSignal.clear();
camera.stop();
QCOMPARE(camera.captureMode(), QCamera::CaptureVideo);
camera.unload();
QCOMPARE(camera.captureMode(), QCamera::CaptureVideo);
QVERIFY2(errorSignal.isEmpty(), QString("Camera error: %1").arg(camera.errorString()).toLocal8Bit());
}