| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QGSTREAMERCAMERACONTROL_H |
| 5 | #define QGSTREAMERCAMERACONTROL_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include <QHash> |
| 19 | #include <private/qplatformcamera_p.h> |
| 20 | #include <private/qmultimediautils_p.h> |
| 21 | #include "qgstreamermediacapture_p.h" |
| 22 | #include <qgst_p.h> |
| 23 | |
| 24 | QT_BEGIN_NAMESPACE |
| 25 | |
| 26 | class QGstreamerCamera : public QPlatformCamera |
| 27 | { |
| 28 | Q_OBJECT |
| 29 | public: |
| 30 | static QMaybe<QPlatformCamera *> create(QCamera *camera); |
| 31 | |
| 32 | virtual ~QGstreamerCamera(); |
| 33 | |
| 34 | bool isActive() const override; |
| 35 | void setActive(bool active) override; |
| 36 | |
| 37 | void setCamera(const QCameraDevice &camera) override; |
| 38 | bool setCameraFormat(const QCameraFormat &format) override; |
| 39 | |
| 40 | QGstElement gstElement() const { return gstCameraBin.element(); } |
| 41 | #if QT_CONFIG(gstreamer_photography) |
| 42 | GstPhotography *photography() const; |
| 43 | #endif |
| 44 | |
| 45 | void setFocusMode(QCamera::FocusMode mode) override; |
| 46 | bool isFocusModeSupported(QCamera::FocusMode mode) const override; |
| 47 | |
| 48 | void setFlashMode(QCamera::FlashMode mode) override; |
| 49 | bool isFlashModeSupported(QCamera::FlashMode mode) const override; |
| 50 | bool isFlashReady() const override; |
| 51 | |
| 52 | void setExposureMode(QCamera::ExposureMode) override; |
| 53 | bool isExposureModeSupported(QCamera::ExposureMode mode) const override; |
| 54 | void setExposureCompensation(float) override; |
| 55 | void setManualIsoSensitivity(int) override; |
| 56 | int isoSensitivity() const override; |
| 57 | void setManualExposureTime(float) override; |
| 58 | float exposureTime() const override; |
| 59 | |
| 60 | bool isWhiteBalanceModeSupported(QCamera::WhiteBalanceMode mode) const override; |
| 61 | void setWhiteBalanceMode(QCamera::WhiteBalanceMode mode) override; |
| 62 | void setColorTemperature(int temperature) override; |
| 63 | |
| 64 | QString v4l2Device() const { return m_v4l2Device; } |
| 65 | bool isV4L2Camera() const { return !m_v4l2Device.isEmpty(); } |
| 66 | |
| 67 | private: |
| 68 | QGstreamerCamera(QGstElement videotestsrc, QGstElement capsFilter, QGstElement videoconvert, |
| 69 | QGstElement videoscale, QCamera *camera); |
| 70 | |
| 71 | void updateCameraProperties(); |
| 72 | #if QT_CONFIG(linux_v4l) |
| 73 | void initV4L2Controls(); |
| 74 | int setV4L2ColorTemperature(int temperature); |
| 75 | bool setV4L2Parameter(quint32 id, qint32 value); |
| 76 | int getV4L2Parameter(quint32 id) const; |
| 77 | |
| 78 | bool v4l2AutoWhiteBalanceSupported = false; |
| 79 | bool v4l2ColorTemperatureSupported = false; |
| 80 | bool v4l2AutoExposureSupported = false; |
| 81 | bool v4l2ManualExposureSupported = false; |
| 82 | qint32 v4l2MinColorTemp = 5600; // Daylight... |
| 83 | qint32 v4l2MaxColorTemp = 5600; |
| 84 | qint32 v4l2MinExposure = 0; |
| 85 | qint32 v4l2MaxExposure = 0; |
| 86 | qint32 v4l2MinExposureAdjustment = 0; |
| 87 | qint32 v4l2MaxExposureAdjustment = 0; |
| 88 | int v4l2FileDescriptor = -1; |
| 89 | #endif |
| 90 | |
| 91 | QCameraDevice m_cameraDevice; |
| 92 | |
| 93 | QGstBin gstCameraBin; |
| 94 | QGstElement gstCamera; |
| 95 | QGstElement gstCapsFilter; |
| 96 | QGstElement gstDecode; |
| 97 | QGstElement gstVideoConvert; |
| 98 | QGstElement gstVideoScale; |
| 99 | |
| 100 | bool m_active = false; |
| 101 | QString m_v4l2Device; |
| 102 | }; |
| 103 | |
| 104 | QT_END_NAMESPACE |
| 105 | |
| 106 | #endif // QGSTREAMERCAMERACONTROL_H |
| 107 |