1 files changed, 109 insertions, 0 deletions
diff --git a/src/plugins/multimedia/gstreamer/mediacapture/qgstreamerimagecapture_p.h b/src/plugins/multimedia/gstreamer/mediacapture/qgstreamerimagecapture_p.h
new file mode 100644
index 000000000..04a7c00b4
--- /dev/null
+++ b/src/plugins/multimedia/gstreamer/mediacapture/qgstreamerimagecapture_p.h
@@ -0,0 +1,109 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QGSTREAMERIMAGECAPTURECONTROL_H
+#define QGSTREAMERIMAGECAPTURECONTROL_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtMultimedia/private/qplatformimagecapture_p.h>
+#include <QtMultimedia/private/qmultimediautils_p.h>
+
+#include <QtCore/qmutex.h>
+#include <QtCore/qqueue.h>
+#include <QtConcurrent/QtConcurrentRun>
+
+#include <common/qgst_p.h>
+#include <common/qgstreamerbufferprobe_p.h>
+#include <mediacapture/qgstreamermediacapture_p.h>
+#include <gst/video/video.h>
+
+QT_BEGIN_NAMESPACE
+
+class QGstreamerImageCapture : public QPlatformImageCapture, private QGstreamerBufferProbe
+{
+    Q_OBJECT
+
+public:
+    static QMaybe<QPlatformImageCapture *> create(QImageCapture *parent);
+    virtual ~QGstreamerImageCapture();
+
+    bool isReadyForCapture() const override;
+    int capture(const QString &fileName) override;
+    int captureToBuffer() override;
+
+    QImageEncoderSettings imageSettings() const override;
+    void setImageSettings(const QImageEncoderSettings &settings) override;
+
+    bool probeBuffer(GstBuffer *buffer) override;
+
+    void setCaptureSession(QPlatformMediaCaptureSession *session);
+
+    QGstElement gstElement() const { return bin; }
+
+    void setMetaData(const QMediaMetaData &m) override;
+
+public Q_SLOTS:
+    void cameraActiveChanged(bool active);
+    void onCameraChanged();
+
+private:
+    QGstreamerImageCapture(QImageCapture *parent);
+
+    void setResolution(const QSize &resolution);
+    int doCapture(const QString &fileName);
+    static gboolean saveImageFilter(GstElement *element, GstBuffer *buffer, GstPad *pad,
+                                    QGstreamerImageCapture *capture);
+
+    void saveBufferToImage(GstBuffer *buffer);
+
+    mutable QRecursiveMutex
+            m_mutex; // guard all elements accessed from probeBuffer/saveBufferToImage
+    QGstreamerMediaCapture *m_session = nullptr;
+    int m_lastId = 0;
+    QImageEncoderSettings m_settings;
+
+    struct PendingImage {
+        int id;
+        QString filename;
+        QMediaMetaData metaData;
+    };
+
+    QQueue<PendingImage> pendingImages;
+
+    QGstBin bin;
+    QGstElement queue;
+    QGstElement filter;
+    QGstElement videoConvert;
+    QGstElement encoder;
+    QGstElement muxer;
+    QGstElement sink;
+    QGstPad videoSrcPad;
+
+    bool passImage = false;
+    bool cameraActive = false;
+
+    QGObjectHandlerScopedConnection m_handoffConnection;
+
+    QMap<int, QFuture<void>> m_pendingFutures;
+    int futureIDAllocator = 0;
+
+    template <typename Functor>
+    void invokeDeferred(Functor &&fn)
+    {
+        QMetaObject::invokeMethod(this, std::forward<decltype(fn)>(fn), Qt::QueuedConnection);
+    };
+};
+
+QT_END_NAMESPACE
+
+#endif // QGSTREAMERCAPTURECORNTROL_H