예제 #1
0
void tst_QCameraBackend::testExposureCompensation()
{
#if !defined(Q_WS_MAEMO_6)
    QSKIP("Capture exposure parameters are supported only on mobile platforms");
#endif

    QCamera camera;
    QCameraExposure *exposure = camera.exposure();

    QSignalSpy exposureCompensationSignal(exposure, SIGNAL(exposureCompensationChanged(qreal)));

    //it should be possible to set exposure parameters in Unloaded state
    QCOMPARE(exposure->exposureCompensation()+1.0, 1.0);
    exposure->setExposureCompensation(1.0);
    QCOMPARE(exposure->exposureCompensation(), 1.0);
    QTRY_COMPARE(exposureCompensationSignal.count(), 1);
    QCOMPARE(exposureCompensationSignal.last().first().toReal(), 1.0);

    //exposureCompensationChanged should not be emitted when value is not changed
    exposure->setExposureCompensation(1.0);
    QTest::qWait(50);
    QCOMPARE(exposureCompensationSignal.count(), 1);

    //exposure compensation should be preserved during load/start
    camera.load();
    QTRY_COMPARE(camera.status(), QCamera::LoadedStatus);

    QCOMPARE(exposure->exposureCompensation(), 1.0);

    exposureCompensationSignal.clear();
    exposure->setExposureCompensation(-1.0);
    QCOMPARE(exposure->exposureCompensation(), -1.0);
    QTRY_COMPARE(exposureCompensationSignal.count(), 1);
    QCOMPARE(exposureCompensationSignal.last().first().toReal(), -1.0);

    camera.start();
    QTRY_COMPARE(camera.status(), QCamera::ActiveStatus);

    QCOMPARE(exposure->exposureCompensation(), -1.0);

    exposureCompensationSignal.clear();
    exposure->setExposureCompensation(1.0);
    QCOMPARE(exposure->exposureCompensation(), 1.0);
    QTRY_COMPARE(exposureCompensationSignal.count(), 1);
    QCOMPARE(exposureCompensationSignal.last().first().toReal(), 1.0);
}
예제 #2
0
void tst_QCameraBackend::testCameraCapture()
{
    QCamera camera;
    QCameraImageCapture imageCapture(&camera);
    //prevents camera to flash during the test
    camera.exposure()->setFlashMode(QCameraExposure::FlashOff);

    QVERIFY(!imageCapture.isReadyForCapture());

    QSignalSpy capturedSignal(&imageCapture, SIGNAL(imageCaptured(int,QImage)));
    QSignalSpy savedSignal(&imageCapture, SIGNAL(imageSaved(int,QString)));
    QSignalSpy errorSignal(&imageCapture, SIGNAL(error(int, QCameraImageCapture::Error,QString)));

    imageCapture.capture();
    QTRY_COMPARE(errorSignal.size(), 1);
    QCOMPARE(imageCapture.error(), QCameraImageCapture::NotReadyError);
    QCOMPARE(capturedSignal.size(), 0);
    errorSignal.clear();

    camera.start();

    QTRY_VERIFY(imageCapture.isReadyForCapture());
    QCOMPARE(camera.status(), QCamera::ActiveStatus);
    QCOMPARE(errorSignal.size(), 0);

    int id = imageCapture.capture();

    QTRY_VERIFY(!savedSignal.isEmpty());

    QCOMPARE(capturedSignal.size(), 1);
    QCOMPARE(capturedSignal.last().first().toInt(), id);
    QCOMPARE(errorSignal.size(), 0);
    QCOMPARE(imageCapture.error(), QCameraImageCapture::NoError);

    QCOMPARE(savedSignal.last().first().toInt(), id);
    QString location = savedSignal.last().last().toString();
    QVERIFY(!location.isEmpty());
    QVERIFY(QFileInfo(location).exists());
    QImageReader reader(location);
    reader.setScaledSize(QSize(320,240));
    QVERIFY(!reader.read().isNull());

    QFile(location).remove();
}
예제 #3
0
void tst_QCameraBackend::testCameraCaptureMetadata()
{
#ifndef Q_WS_MAEMO_6
    QSKIP("Capture metadata is supported only on harmattan");
#endif

    QCamera camera;
    QCameraImageCapture imageCapture(&camera);
    camera.exposure()->setFlashMode(QCameraExposure::FlashOff);

    QSignalSpy metadataSignal(&imageCapture, SIGNAL(imageMetadataAvailable(int,QString,QVariant)));
    QSignalSpy savedSignal(&imageCapture, SIGNAL(imageSaved(int,QString)));

    camera.start();

    QTRY_VERIFY(imageCapture.isReadyForCapture());

    int id = imageCapture.capture(QString::fromLatin1("/dev/null"));
    QTRY_VERIFY(!savedSignal.isEmpty());
    QVERIFY(!metadataSignal.isEmpty());
    QCOMPARE(metadataSignal.first().first().toInt(), id);
}
예제 #4
0
void tst_QCameraBackend::testExposureMode()
{
#if !defined(Q_WS_MAEMO_6)
    QSKIP("Capture exposure parameters are supported only on mobile platforms");
#endif

    QCamera camera;
    QCameraExposure *exposure = camera.exposure();

#ifdef Q_WS_MAEMO_6
    QEXPECT_FAIL("", "Camerabin reports Manual exposure instead of Auto", Continue);
#endif
    QCOMPARE(exposure->exposureMode(), QCameraExposure::ExposureAuto);

    // Night
    exposure->setExposureMode(QCameraExposure::ExposureNight);
    QCOMPARE(exposure->exposureMode(), QCameraExposure::ExposureNight);
    camera.start();
    QTRY_COMPARE(camera.status(), QCamera::ActiveStatus);
    QCOMPARE(exposure->exposureMode(), QCameraExposure::ExposureNight);

    camera.unload();
    QTRY_COMPARE(camera.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

    // Auto
    exposure->setExposureMode(QCameraExposure::ExposureAuto);
    QCOMPARE(exposure->exposureMode(), QCameraExposure::ExposureAuto);
    camera.start();
    QTRY_COMPARE(camera.status(), QCamera::ActiveStatus);
    QCOMPARE(exposure->exposureMode(), QCameraExposure::ExposureAuto);
}
예제 #5
0
파일: main.cpp 프로젝트: dhamp/QDSLRCamera
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();
}
예제 #6
0
void tst_QCameraBackend::testCaptureToBuffer()
{
    QCamera camera;
    QCameraImageCapture imageCapture(&camera);
    camera.exposure()->setFlashMode(QCameraExposure::FlashOff);

    camera.load();

#ifdef Q_WS_MAEMO_6
    QVERIFY(imageCapture.isCaptureDestinationSupported(QCameraImageCapture::CaptureToBuffer));
#endif

    if (!imageCapture.isCaptureDestinationSupported(QCameraImageCapture::CaptureToBuffer))
        QSKIP("Buffer capture not supported");

    QTRY_COMPARE(camera.status(), QCamera::LoadedStatus);

    QCOMPARE(imageCapture.bufferFormat(), QVideoFrame::Format_Jpeg);

    QVERIFY(imageCapture.isCaptureDestinationSupported(QCameraImageCapture::CaptureToFile));
    QVERIFY(imageCapture.isCaptureDestinationSupported(QCameraImageCapture::CaptureToBuffer));
    QVERIFY(imageCapture.isCaptureDestinationSupported(
                QCameraImageCapture::CaptureToBuffer | QCameraImageCapture::CaptureToFile));

    QSignalSpy destinationChangedSignal(&imageCapture, SIGNAL(captureDestinationChanged(QCameraImageCapture::CaptureDestinations)));

    QCOMPARE(imageCapture.captureDestination(), QCameraImageCapture::CaptureToFile);
    imageCapture.setCaptureDestination(QCameraImageCapture::CaptureToBuffer);
    QCOMPARE(imageCapture.captureDestination(), QCameraImageCapture::CaptureToBuffer);
    QCOMPARE(destinationChangedSignal.size(), 1);
    QCOMPARE(destinationChangedSignal.first().first().value<QCameraImageCapture::CaptureDestinations>(),
             QCameraImageCapture::CaptureToBuffer);

    QSignalSpy capturedSignal(&imageCapture, SIGNAL(imageCaptured(int,QImage)));
    QSignalSpy imageAvailableSignal(&imageCapture, SIGNAL(imageAvailable(int,QVideoFrame)));
    QSignalSpy savedSignal(&imageCapture, SIGNAL(imageSaved(int,QString)));
    QSignalSpy errorSignal(&imageCapture, SIGNAL(error(int, QCameraImageCapture::Error,QString)));

    camera.start();
    QTRY_VERIFY(imageCapture.isReadyForCapture());

    int id = imageCapture.capture();
    QTRY_VERIFY(!imageAvailableSignal.isEmpty());

    QVERIFY(errorSignal.isEmpty());
    QVERIFY(!capturedSignal.isEmpty());
    QVERIFY(!imageAvailableSignal.isEmpty());

    QTest::qWait(2000);
    QVERIFY(savedSignal.isEmpty());

    QCOMPARE(capturedSignal.first().first().toInt(), id);
    QCOMPARE(imageAvailableSignal.first().first().toInt(), id);

    QVideoFrame frame = imageAvailableSignal.first().last().value<QVideoFrame>();
    QVERIFY(frame.isValid());
    QCOMPARE(frame.pixelFormat(), QVideoFrame::Format_Jpeg);
    QVERIFY(!frame.size().isEmpty());
    QVERIFY(frame.map(QAbstractVideoBuffer::ReadOnly));
    QByteArray data((const char *)frame.bits(), frame.mappedBytes());
    frame.unmap();
    frame = QVideoFrame();

    QVERIFY(!data.isEmpty());
    QBuffer buffer;
    buffer.setData(data);
    buffer.open(QIODevice::ReadOnly);
    QImageReader reader(&buffer, "JPG");
    reader.setScaledSize(QSize(640,480));
    QImage img(reader.read());
    QVERIFY(!img.isNull());

    capturedSignal.clear();
    imageAvailableSignal.clear();
    savedSignal.clear();

    //Capture to yuv buffer
#ifdef Q_WS_MAEMO_6
    QVERIFY(imageCapture.supportedBufferFormats().contains(QVideoFrame::Format_UYVY));
#endif

    if (imageCapture.supportedBufferFormats().contains(QVideoFrame::Format_UYVY)) {
        imageCapture.setBufferFormat(QVideoFrame::Format_UYVY);
        QCOMPARE(imageCapture.bufferFormat(), QVideoFrame::Format_UYVY);

        id = imageCapture.capture();
        QTRY_VERIFY(!imageAvailableSignal.isEmpty());

        QVERIFY(errorSignal.isEmpty());
        QVERIFY(!capturedSignal.isEmpty());
        QVERIFY(!imageAvailableSignal.isEmpty());
        QVERIFY(savedSignal.isEmpty());

        QTest::qWait(2000);
        QVERIFY(savedSignal.isEmpty());

        frame = imageAvailableSignal.first().last().value<QVideoFrame>();
        QVERIFY(frame.isValid());

        qDebug() << frame.pixelFormat();
        QCOMPARE(frame.pixelFormat(), QVideoFrame::Format_UYVY);
        QVERIFY(!frame.size().isEmpty());
        frame = QVideoFrame();

        capturedSignal.clear();
        imageAvailableSignal.clear();
        savedSignal.clear();

        imageCapture.setBufferFormat(QVideoFrame::Format_Jpeg);
        QCOMPARE(imageCapture.bufferFormat(), QVideoFrame::Format_Jpeg);
    }

    //Try to capture to both buffer and file
#ifdef Q_WS_MAEMO_6
    QVERIFY(imageCapture.isCaptureDestinationSupported(QCameraImageCapture::CaptureToBuffer | QCameraImageCapture::CaptureToFile));
#endif
    if (imageCapture.isCaptureDestinationSupported(QCameraImageCapture::CaptureToBuffer | QCameraImageCapture::CaptureToFile)) {
        imageCapture.setCaptureDestination(QCameraImageCapture::CaptureToBuffer | QCameraImageCapture::CaptureToFile);

        int oldId = id;
        id = imageCapture.capture();
        QVERIFY(id != oldId);
        QTRY_VERIFY(!savedSignal.isEmpty());

        QVERIFY(errorSignal.isEmpty());
        QVERIFY(!capturedSignal.isEmpty());
        QVERIFY(!imageAvailableSignal.isEmpty());
        QVERIFY(!savedSignal.isEmpty());

        QCOMPARE(capturedSignal.first().first().toInt(), id);
        QCOMPARE(imageAvailableSignal.first().first().toInt(), id);

        frame = imageAvailableSignal.first().last().value<QVideoFrame>();
        QVERIFY(frame.isValid());
        QCOMPARE(frame.pixelFormat(), QVideoFrame::Format_Jpeg);
        QVERIFY(!frame.size().isEmpty());

        QString fileName = savedSignal.first().last().toString();
        QVERIFY(QFileInfo(fileName).exists());
    }
}