qt-everywhere-src-5.15.1/qtmultimedia/src/plugins/gstreamer/camerabin/camerabinflash.cpp

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#include "camerabinflash.h"
#include "camerabinsession.h"
#include <gst/interfaces/photography.h>

#include <QDebug>

#if !GST_CHECK_VERSION(1,0,0)
typedef GstFlashMode GstPhotographyFlashMode;
#endif

QT_BEGIN_NAMESPACE

CameraBinFlash::CameraBinFlash(CameraBinSession *session)
    :QCameraFlashControl(session),
     m_session(session)
{
}

CameraBinFlash::~CameraBinFlash()
{
}

QCameraExposure::FlashModes CameraBinFlash::flashMode() const
{
    GstPhotographyFlashMode flashMode;
    gst_photography_get_flash_mode(m_session->photography(), &flashMode);

    QCameraExposure::FlashModes modes;
    switch (flashMode) {
    case GST_PHOTOGRAPHY_FLASH_MODE_AUTO: modes |= QCameraExposure::FlashAuto; break;
    case GST_PHOTOGRAPHY_FLASH_MODE_OFF: modes |= QCameraExposure::FlashOff; break;
    case GST_PHOTOGRAPHY_FLASH_MODE_ON: modes |= QCameraExposure::FlashOn; break;
    case GST_PHOTOGRAPHY_FLASH_MODE_FILL_IN: modes |= QCameraExposure::FlashFill; break;
    case GST_PHOTOGRAPHY_FLASH_MODE_RED_EYE: modes |= QCameraExposure::FlashRedEyeReduction; break;
    default:
        modes |= QCameraExposure::FlashAuto;
        break;
    }
    return modes;
}

void CameraBinFlash::setFlashMode(QCameraExposure::FlashModes mode)
{
    GstPhotographyFlashMode flashMode;
    gst_photography_get_flash_mode(m_session->photography(), &flashMode);

    if (mode.testFlag(QCameraExposure::FlashAuto)) flashMode = GST_PHOTOGRAPHY_FLASH_MODE_AUTO;
    else if (mode.testFlag(QCameraExposure::FlashOff)) flashMode = GST_PHOTOGRAPHY_FLASH_MODE_OFF;
    else if (mode.testFlag(QCameraExposure::FlashOn)) flashMode = GST_PHOTOGRAPHY_FLASH_MODE_ON;
    else if (mode.testFlag(QCameraExposure::FlashFill)) flashMode = GST_PHOTOGRAPHY_FLASH_MODE_FILL_IN;
    else if (mode.testFlag(QCameraExposure::FlashRedEyeReduction)) flashMode = GST_PHOTOGRAPHY_FLASH_MODE_RED_EYE;

    gst_photography_set_flash_mode(m_session->photography(), flashMode);
}

bool CameraBinFlash::isFlashModeSupported(QCameraExposure::FlashModes mode) const
{
    return  mode == QCameraExposure::FlashOff ||
            mode == QCameraExposure::FlashOn ||
            mode == QCameraExposure::FlashAuto ||
            mode == QCameraExposure::FlashRedEyeReduction ||
            mode == QCameraExposure::FlashFill;
}

bool CameraBinFlash::isFlashReady() const
{
    return true;
}

QT_END_NAMESPACE