qt-everywhere-src-5.15.1/qtmultimedia/src/plugins/avfoundation/camera/avfcameraservice.mm

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#include <QtCore/qvariant.h>
#include <QtCore/qdebug.h>

#include "avfcameraservice.h"
#include "avfcameracontrol.h"
#include "avfcamerainfocontrol.h"
#include "avfcamerasession.h"
#include "avfcameradevicecontrol.h"
#include "avfaudioinputselectorcontrol.h"
#include "avfcamerametadatacontrol.h"
#include "avfmediarecordercontrol.h"
#include "avfimagecapturecontrol.h"
#include "avfcamerarenderercontrol.h"
#include "avfmediarecordercontrol.h"
#include "avfimagecapturecontrol.h"
#include "avfmediavideoprobecontrol.h"
#include "avfcamerafocuscontrol.h"
#include "avfcameraexposurecontrol.h"
#include "avfcameraviewfindersettingscontrol.h"
#include "avfimageencodercontrol.h"
#include "avfcameraflashcontrol.h"
#include "avfaudioencodersettingscontrol.h"
#include "avfvideoencodersettingscontrol.h"
#include "avfmediacontainercontrol.h"
#include "avfcamerawindowcontrol.h"

#ifdef Q_OS_IOS
#include "avfcamerazoomcontrol.h"
#include "avfmediarecordercontrol_ios.h"
#endif

#include <private/qmediaplaylistnavigator_p.h>
#include <qmediaplaylist.h>

QT_USE_NAMESPACE

AVFCameraService::AVFCameraService(QObject *parent):
    QMediaService(parent),
    m_videoOutput(nullptr),
    m_captureWindowControl(nullptr)
{
    m_session = new AVFCameraSession(this);
    m_cameraControl = new AVFCameraControl(this);
    m_cameraInfoControl = new AVFCameraInfoControl(this);
    m_videoDeviceControl = new AVFCameraDeviceControl(this);
    m_audioInputSelectorControl = new AVFAudioInputSelectorControl(this);

    m_metaDataControl = new AVFCameraMetaDataControl(this);
#ifndef Q_OS_IOS
    // This will connect a slot to 'captureModeChanged'
    // and will break viewfinder by attaching AVCaptureMovieFileOutput
    // in this slot.
    m_recorderControl = new AVFMediaRecorderControl(this);
#else
    m_recorderControl = new AVFMediaRecorderControlIOS(this);
#endif
    m_imageCaptureControl = new AVFImageCaptureControl(this);
    m_cameraFocusControl = new AVFCameraFocusControl(this);
    m_cameraExposureControl = nullptr;
#ifdef Q_OS_IOS
    m_cameraExposureControl = new AVFCameraExposureControl(this);
#endif

    m_cameraZoomControl = nullptr;
#ifdef Q_OS_IOS
    m_cameraZoomControl = new AVFCameraZoomControl(this);
#endif
    m_viewfinderSettingsControl2 = new AVFCameraViewfinderSettingsControl2(this);
    m_viewfinderSettingsControl = new AVFCameraViewfinderSettingsControl(this);
    m_imageEncoderControl = new AVFImageEncoderControl(this);
    m_flashControl = new AVFCameraFlashControl(this);
    m_audioEncoderSettingsControl = new AVFAudioEncoderSettingsControl(this);
    m_videoEncoderSettingsControl = new AVFVideoEncoderSettingsControl(this);
    m_mediaContainerControl = new AVFMediaContainerControl(this);
}

AVFCameraService::~AVFCameraService()
{
    m_cameraControl->setState(QCamera::UnloadedState);

#ifdef Q_OS_IOS
    delete m_recorderControl;
#endif

    if (m_captureWindowControl) {
        m_session->setCapturePreviewOutput(nullptr);
        delete m_captureWindowControl;
        m_captureWindowControl = nullptr;
    }

    if (m_videoOutput) {
        m_session->setVideoOutput(nullptr);
        delete m_videoOutput;
        m_videoOutput = nullptr;
    }

    //delete controls before session,
    //so they have a chance to do deinitialization
    delete m_imageCaptureControl;
    //delete m_recorderControl;
    delete m_metaDataControl;
    delete m_cameraControl;
    delete m_cameraFocusControl;
    delete m_cameraExposureControl;
#ifdef Q_OS_IOS
    delete m_cameraZoomControl;
#endif
    delete m_viewfinderSettingsControl2;
    delete m_viewfinderSettingsControl;
    delete m_imageEncoderControl;
    delete m_flashControl;
    delete m_audioEncoderSettingsControl;
    delete m_videoEncoderSettingsControl;
    delete m_mediaContainerControl;

    delete m_session;
}

QMediaControl *AVFCameraService::requestControl(const char *name)
{
    if (qstrcmp(name, QCameraControl_iid) == 0)
        return m_cameraControl;

    if (qstrcmp(name, QCameraInfoControl_iid) == 0)
        return m_cameraInfoControl;

    if (qstrcmp(name, QVideoDeviceSelectorControl_iid) == 0)
        return m_videoDeviceControl;

    if (qstrcmp(name, QAudioInputSelectorControl_iid) == 0)
        return m_audioInputSelectorControl;

    //metadata support is not implemented yet
    //if (qstrcmp(name, QMetaDataWriterControl_iid) == 0)
    //    return m_metaDataControl;

    if (qstrcmp(name, QMediaRecorderControl_iid) == 0)
        return m_recorderControl;

    if (qstrcmp(name, QCameraImageCaptureControl_iid) == 0)
        return m_imageCaptureControl;

    if (qstrcmp(name, QCameraExposureControl_iid) == 0)
        return m_cameraExposureControl;

    if (qstrcmp(name, QCameraFocusControl_iid) == 0)
        return m_cameraFocusControl;

    if (qstrcmp(name, QCameraViewfinderSettingsControl2_iid) == 0)
        return m_viewfinderSettingsControl2;

    if (qstrcmp(name, QCameraViewfinderSettingsControl_iid) == 0)
        return m_viewfinderSettingsControl;

    if (qstrcmp(name, QImageEncoderControl_iid) == 0)
        return m_imageEncoderControl;

    if (qstrcmp(name, QCameraFlashControl_iid) == 0)
        return m_flashControl;

    if (qstrcmp(name, QAudioEncoderSettingsControl_iid) == 0)
        return m_audioEncoderSettingsControl;

    if (qstrcmp(name, QVideoEncoderSettingsControl_iid) == 0)
        return m_videoEncoderSettingsControl;

    if (qstrcmp(name, QMediaContainerControl_iid) == 0)
        return m_mediaContainerControl;

    if (qstrcmp(name,QMediaVideoProbeControl_iid) == 0) {
        AVFMediaVideoProbeControl *videoProbe = nullptr;
        videoProbe = new AVFMediaVideoProbeControl(this);
        m_session->addProbe(videoProbe);
        return videoProbe;
    }

#ifdef Q_OS_IOS
    if (qstrcmp(name, QCameraZoomControl_iid) == 0)
        return m_cameraZoomControl;
#endif

    if (!m_captureWindowControl) {
        if (qstrcmp(name, QVideoWindowControl_iid) == 0) {
            m_captureWindowControl = new AVFCameraWindowControl(this);
            m_session->setCapturePreviewOutput(m_captureWindowControl);
            return m_captureWindowControl;
        }
    }

    if (!m_videoOutput) {
        if (qstrcmp(name, QVideoRendererControl_iid) == 0)
            m_videoOutput = new AVFCameraRendererControl(this);

        if (m_videoOutput) {
            m_session->setVideoOutput(m_videoOutput);
            return m_videoOutput;
        }
    }

    return nullptr;
}

void AVFCameraService::releaseControl(QMediaControl *control)
{
    AVFMediaVideoProbeControl *videoProbe = qobject_cast<AVFMediaVideoProbeControl *>(control);
    if (videoProbe) {
        m_session->removeProbe(videoProbe);
        delete videoProbe;
    } else if (m_videoOutput == control) {
        m_session->setVideoOutput(nullptr);
        delete m_videoOutput;
        m_videoOutput = nullptr;
    }
    else if (m_captureWindowControl == control) {
        m_session->setCapturePreviewOutput(nullptr);
        delete m_captureWindowControl;
        m_captureWindowControl = nullptr;
    }
}


#include "moc_avfcameraservice.cpp"