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39
40#ifndef QGSTAPPSRC_H
41#define QGSTAPPSRC_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <private/qgsttools_global_p.h>
55#include <QtCore/qobject.h>
56#include <QtCore/qiodevice.h>
57
58#include <gst/gst.h>
59#include <gst/app/gstappsrc.h>
60
61#if GST_VERSION_MAJOR < 1
62#include <gst/app/gstappbuffer.h>
63#endif
64
65QT_BEGIN_NAMESPACE
66
67class Q_GSTTOOLS_EXPORT QGstAppSrc : public QObject
68{
69 Q_OBJECT
70public:
71 QGstAppSrc(QObject *parent = 0);
72 ~QGstAppSrc();
73
74 bool setup(GstElement *);
75
76 void setStream(QIODevice *);
77 QIODevice *stream() const;
78
79 GstAppSrc *element();
80
81 qint64 queueSize() const { return m_maxBytes; }
82
83 bool& enoughData() { return m_enoughData; }
84 bool& dataRequested() { return m_dataRequested; }
85 unsigned int& dataRequestSize() { return m_dataRequestSize; }
86
87 bool isStreamValid() const
88 {
89 return m_stream != 0 &&
90 m_stream->isOpen();
91 }
92
93private slots:
94 void pushDataToAppSrc();
95 bool doSeek(qint64);
96 void onDataReady();
97
98 void streamDestroyed();
99private:
100 static gboolean on_seek_data(GstAppSrc *element, guint64 arg0, gpointer userdata);
101 static void on_enough_data(GstAppSrc *element, gpointer userdata);
102 static void on_need_data(GstAppSrc *element, uint arg0, gpointer userdata);
103 static void destroy_notify(gpointer data);
104
105 void sendEOS();
106
107 QIODevice *m_stream = nullptr;
108 GstAppSrc *m_appSrc = nullptr;
109 bool m_sequential = false;
110 GstAppStreamType m_streamType = GST_APP_STREAM_TYPE_RANDOM_ACCESS;
111 GstAppSrcCallbacks m_callbacks;
112 qint64 m_maxBytes = 0;
113 unsigned int m_dataRequestSize = ~0;
114 bool m_dataRequested = false;
115 bool m_enoughData = false;
116 bool m_forceData = false;
117};
118
119QT_END_NAMESPACE
120
121#endif
122

source code of qtmultimedia/src/gsttools/qgstappsrc_p.h