int CCamera::Start()
{
if(m_pCamera)
{
Stop();
}
m_pCamera = new QCamera(m_CameraPosition);
if(!m_pCamera)
{
LOG_MODEL_WARNING("Video", "Open carmera fail");
return -1;
}
m_pCamera->setCaptureMode(QCamera::CaptureVideo);
m_CaptureVideoFrame.setSource(m_pCamera);
connect(m_pCamera, SIGNAL(stateChanged(QCamera::State)), SLOT(updateCameraState(QCamera::State)));
connect(m_pCamera, SIGNAL(error(QCamera::Error)), SLOT(displayCameraError(QCamera::Error)));
m_pCamera->start();
return 0;
}
void Camera::setCamera(const QCameraInfo& cameraInfo)
{
// ------------------------------------------------------------------------
// QCamera
// ------------------------------------------------------------------------
m_camera = QSharedPointer<QCamera>(new QCamera(cameraInfo));
connect(m_camera.data(), &QCamera::stateChanged,
this, &Camera::updateCameraState);
// QCamera::error is overloaded.
// Disambiguate like this:
void (QCamera::*camera_error)(QCamera::Error) = &QCamera::error;
connect(m_camera.data(), camera_error,
this, &Camera::displayCameraError);
// QCamera::lockStatusChanged is overloaded.
// Disambiguate like this:
void (QCamera::*camera_lockstatus)(
QCamera::LockStatus,
QCamera::LockChangeReason) = &QCamera::lockStatusChanged;
connect(m_camera.data(), camera_lockstatus,
this, &Camera::updateLockStatus);
// ------------------------------------------------------------------------
// QCameraImageCapture
// ------------------------------------------------------------------------
m_capture = QSharedPointer<QCameraImageCapture>(
new QCameraImageCapture(m_camera.data()));
updateCameraState(m_camera->state());
connect(m_capture.data(), &QCameraImageCapture::readyForCaptureChanged,
this, &Camera::readyForCapture);
connect(m_capture.data(), &QCameraImageCapture::imageSaved,
this, &Camera::imageSaved);
connect(m_capture.data(), &QCameraImageCapture::imageAvailable,
this, &Camera::imageAvailable);
// QCameraImageCapture::error is overloaded.
// Disambiguate like this:
void (QCameraImageCapture::*capture_error)(
int,
QCameraImageCapture::Error,
const QString&) = &QCameraImageCapture::error;
connect(m_capture.data(), capture_error,
this, &Camera::displayCaptureError);
bool use_buffer = m_capture->isCaptureDestinationSupported(
QCameraImageCapture::CaptureToBuffer);
// use_buffer = false;
if (use_buffer) {
qDebug() << Q_FUNC_INFO << "Capturing to buffer";
m_capture->setCaptureDestination(QCameraImageCapture::CaptureToBuffer);
} else {
qDebug() << Q_FUNC_INFO << "Capturing to file";
m_capture->setCaptureDestination(QCameraImageCapture::CaptureToFile);
}
// ------------------------------------------------------------------------
// QCameraViewfinder
// ------------------------------------------------------------------------
m_camera->setViewfinder(m_viewfinder);
// ------------------------------------------------------------------------
// Set up; let's go.
// ------------------------------------------------------------------------
if (m_camera->isCaptureModeSupported(QCamera::CaptureStillImage)) {
m_camera->setCaptureMode(QCamera::CaptureStillImage);
} else {
qWarning() << Q_FUNC_INFO
<< "Camera does not support QCamera::CaptureStillImage";
}
updateLockStatus(m_camera->lockStatus(),
QCamera::LockChangeReason::UserRequest);
readyForCapture(m_capture->isReadyForCapture());
m_camera->start();
}