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39
40
41#ifndef CAMERABINIMAGECAPTURECONTROL_H
42#define CAMERABINIMAGECAPTURECONTROL_H
43
44#include <qcameraimagecapturecontrol.h>
45#include "camerabinsession.h"
46
47#include <qvideosurfaceformat.h>
48
49#include <private/qgstreamerbufferprobe_p.h>
50
51#if GST_CHECK_VERSION(1,0,0)
52#include <gst/video/video.h>
53#endif
54
55QT_BEGIN_NAMESPACE
56
57class CameraBinImageCapture : public QCameraImageCaptureControl, public QGstreamerBusMessageFilter
58{
59 Q_OBJECT
60 Q_INTERFACES(QGstreamerBusMessageFilter)
61public:
62 CameraBinImageCapture(CameraBinSession *session);
63 virtual ~CameraBinImageCapture();
64
65 QCameraImageCapture::DriveMode driveMode() const override { return QCameraImageCapture::SingleImageCapture; }
66 void setDriveMode(QCameraImageCapture::DriveMode) override {}
67
68 bool isReadyForCapture() const override;
69 int capture(const QString &fileName) override;
70 void cancelCapture() override;
71
72 bool processBusMessage(const QGstreamerMessage &message) override;
73
74private slots:
75 void updateState();
76
77private:
78#if GST_CHECK_VERSION(1,0,0)
79 static GstPadProbeReturn encoderEventProbe(GstPad *, GstPadProbeInfo *info, gpointer user_data);
80#else
81 static gboolean encoderEventProbe(GstElement *, GstEvent *event, gpointer user_data);
82#endif
83
84 class EncoderProbe : public QGstreamerBufferProbe
85 {
86 public:
87 EncoderProbe(CameraBinImageCapture *capture) : capture(capture) {}
88 void probeCaps(GstCaps *caps) override;
89 bool probeBuffer(GstBuffer *buffer) override;
90
91 private:
92 CameraBinImageCapture * const capture;
93 } m_encoderProbe;
94
95 class MuxerProbe : public QGstreamerBufferProbe
96 {
97 public:
98 MuxerProbe(CameraBinImageCapture *capture) : capture(capture) {}
99 void probeCaps(GstCaps *caps) override;
100 bool probeBuffer(GstBuffer *buffer) override;
101
102 private:
103 CameraBinImageCapture * const capture;
104
105 } m_muxerProbe;
106
107 QVideoSurfaceFormat m_bufferFormat;
108 QSize m_jpegResolution;
109 CameraBinSession *m_session;
110 GstElement *m_jpegEncoderElement;
111 GstElement *m_metadataMuxerElement;
112#if GST_CHECK_VERSION(1,0,0)
113 GstVideoInfo m_videoInfo;
114#else
115 int m_bytesPerLine;
116#endif
117 int m_requestId;
118 bool m_ready;
119};
120
121QT_END_NAMESPACE
122
123#endif // CAMERABINCAPTURECORNTROL_H
124

source code of qtmultimedia/src/plugins/gstreamer/camerabin/camerabinimagecapture.h