/*!
Starts the camera with the given device. The available devices
can be queried with the availableDevices method. Starting will release
and destroy all earlier camera resources before creating new ones.
*/
void CustomCamera::start(const QString &device)
{
destroyResources();
m_camera = new QCamera(device.toLatin1(), this);
m_videoSurface = new VideoSurface(this, m_camera);
m_camera->setViewfinder(m_videoSurface);
// Set the image capturing objects.
m_cameraImageCapture = new QCameraImageCapture(m_camera);
m_cameraImageCapture->setCaptureDestination(
QCameraImageCapture::CaptureToFile);
// The following code finds a 16:9 resolution and sets it as capture
// resolution. The view finder image should also change to corresponding
// aspect ratio.
// Find resolution that matches to device's full screen, 16:9
QImageEncoderSettings imageSettings;
imageSettings.setCodec("image/jpeg");
QList<QSize> resolutions = m_cameraImageCapture->supportedResolutions();
QSize resolution;
foreach (const QSize size, resolutions) {
float a = size.width() * 1.0f / (size.height() * 1.0f);
float b = 640.0f / 360.0f;
if (qAbs(a - b) <= 0.1f * qMin(qAbs(a), qAbs(b))) {
resolution = size;
break;
}
}
void S60ImageEncoderControl::setImageSettings(const QImageEncoderSettings &settings)
{
if (!settings.isNull()) {
// Notify that settings have been implicitly set and there's no need to
// initialize them in case camera is changed
m_session->settings()->notifySettingsSet();
if (!settings.codec().isEmpty())
m_session->settings()->setImageCodec(settings.codec());
// Set quality before resolution as quality defines the
// resolution used in case it's not explicitly set
m_session->settings()->setImageQuality(settings.quality());
m_session->settings()->setImageResolution(settings.resolution());
// Prepare ImageCapture with the settings and set error if needed
int prepareSuccess = m_session->prepareImageCapture();
// Preparation fails with KErrNotReady if camera has not been started.
// That can be ignored since settings are set internally in that case.
if (prepareSuccess != KErrNotReady && prepareSuccess != KErrNone)
m_session->setError(prepareSuccess, tr("Failed to apply image settings."), true);
} else {
m_session->setError(KErrNotSupported, tr("Unable to set undefined settings."), true);
}
}
QImageEncoderSettings S60ImageEncoderControl::imageSettings() const
{
// Update setting values from session
QImageEncoderSettings settings;
settings.setCodec(m_session->settings()->imageCodec());
settings.setResolution(m_session->settings()->imageResolution());
settings.setQuality(m_session->settings()->imageQuality());
return settings;
}
QImageEncoderSettings AndroidCamImageEncoderControl::imageSettings() const
{
QImageEncoderSettings imageEncoderSettings;
if(!m_imageSettings.isEmpty())
{
switch(m_imageSettings.at(0))
{
case 256:
imageEncoderSettings.setCodec(QLatin1String("JPEG"));
break;
case 17:
imageEncoderSettings.setCodec(QLatin1String("NV21"));
break;
case 4:
imageEncoderSettings.setCodec(QLatin1String("RGB_565"));
break;
case 20:
imageEncoderSettings.setCodec(QLatin1String("YUY2"));
break;
default:
imageEncoderSettings.setCodec(QLatin1String("JPEG"));
break;
}
imageEncoderSettings.setResolution(QSize(m_imageSettings.at(1),m_imageSettings.at(2)));
}
else
{
imageEncoderSettings.setCodec(QLatin1String("JPEG"));
imageEncoderSettings.setResolution(QSize(QtCameraJni::getSupportedImageResolutions().at(0),QtCameraJni::getSupportedImageResolutions().at(1)));
}
return imageEncoderSettings;
}
QList<QSize> S60ImageEncoderControl::supportedResolutions(
const QImageEncoderSettings &settings, bool *continuous) const
{
// Discrete resolutions are returned
if (continuous)
*continuous = false;
return m_session->settings()->supportedImageResolutionsForCodec(settings.codec());
}
void FSWebCam::setCamera(const QByteArray &cameraDevice)
{
delete camera;
delete imageCapture;
if (cameraDevice.isEmpty()){
camera = new QCamera;
}else{
camera = new QCamera(cameraDevice);
}
imageCapture = new QCameraImageCapture(camera);
QImageEncoderSettings imageSettings = imageCapture->encodingSettings();
qDebug() << imageCapture->supportedResolutions();
qDebug() << imageSettings.resolution();
//QImageEncoderSettings imageSettings;
#ifdef LINUX
#else
imageSettings.setCodec("image/jpeg");
imageSettings.setResolution(1280, 960);
#endif
imageCapture->setEncodingSettings(imageSettings);
camera->setViewfinder(FSController::getInstance()->controlPanel->ui->viewfinder );
FSController::getInstance()->controlPanel->ui->cameraLabel->setStyleSheet("border-style: solid; border-color: black; border-width: 3px 1px 3px 1px;");
FSController::getInstance()->controlPanel->ui->cameraLabel->setText("");
camera->setCaptureMode(QCamera::CaptureStillImage);
//connect(imageCapture, SIGNAL(readyForCaptureChanged(bool)), this, SLOT(readyForCapture(bool)));
connect(imageCapture, SIGNAL(imageCaptured(int,QImage)), this, SLOT(processCapturedImage(int,QImage)));
connect(imageCapture, SIGNAL(imageSaved(int,QString)), this, SLOT(imageSaved(int,QString)));
camera->start();
QStringList res = imageCapture->supportedImageCodecs();
//QList<QSize> res = imageCapture->supportedResolutions();
//QSize r;
QString r;
foreach(r,res){
qDebug() << "Supported Resolutions:"<<r;
}
qDebug() << "set camera:" << cameraDevice;
}
void AndroidCamImageEncoderControl::setImageSettings(const QImageEncoderSettings &settings)
{
m_imageSettings.clear();
if(settings.codec() == QLatin1String("JPEG"))
{
m_imageSettings.append(256);
}
else if(settings.codec() == QLatin1String("NV21"))
{
m_imageSettings.append(17);
}
else if(settings.codec() == QLatin1String("RGB_565"))
{
m_imageSettings.append(4);
}
else if(settings.codec() == QLatin1String("YUY2"))
{
m_imageSettings.append(20);
}
else
{
m_imageSettings.append(256);
}
QSize resolution = settings.resolution();
if(!resolution.isEmpty())
{
m_imageSettings.append(resolution.width());
m_imageSettings.append(resolution.height());
}
else
{
m_imageSettings.append(QtCameraJni::getSupportedImageResolutions().at(0));
m_imageSettings.append(QtCameraJni::getSupportedImageResolutions().at(1));
}
QtCameraJni::setImageSettings(m_imageSettings);
}
void MiCamara::on_capture_triggered() {
imgcap->setCaptureDestination(QCameraImageCapture::CaptureToFile);
QImageEncoderSettings imageSettings;
imageSettings.setCodec("image/jpeg");
imageSettings.setResolution(1600, 1200);
imgcap->setEncodingSettings(imageSettings);
cam->setCaptureMode(QCamera::CaptureStillImage);
cam->start();
cam->searchAndLock();
QString location;
QFileDialog fldao(this);
fldao.setWindowTitle("Guardar captura");
fldao.setAcceptMode(QFileDialog::AcceptSave);
fldao.setFileMode(QFileDialog::AnyFile);
fldao.setNameFilter("JPEG (*.jpeg)");
fldao.setNameFilterDetailsVisible(true);
if (fldao.exec() == QDialog::Rejected) {
cam->unlock();
return;
}
location = fldao.selectedFiles().first();
imgcap->capture(location);
cam->unlock();
}
