1// Copyright (C) 2021 The Qt Company
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 QGSTSUBTITLESINK_P_H
5#define QGSTSUBTITLESINK_P_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 <QtMultimedia/private/qtmultimediaglobal_p.h>
19
20#include <QtCore/qlist.h>
21#include <QtCore/qmutex.h>
22#include <QtCore/qqueue.h>
23#include <QtCore/qpointer.h>
24#include <QtCore/qwaitcondition.h>
25#include <qgst_p.h>
26#include <gst/base/gstbasesink.h>
27
28QT_BEGIN_NAMESPACE
29
30class QGstreamerVideoSink;
31
32class Q_MULTIMEDIA_EXPORT QGstSubtitleSink
33{
34public:
35 GstBaseSink parent;
36
37 static QGstSubtitleSink *createSink(QGstreamerVideoSink *sink);
38
39private:
40 static GType get_type();
41 static void class_init(gpointer g_class, gpointer class_data);
42 static void base_init(gpointer g_class);
43 static void instance_init(GTypeInstance *instance, gpointer g_class);
44
45 static void finalize(GObject *object);
46
47 static GstStateChangeReturn change_state(GstElement *element, GstStateChange transition);
48
49 static GstCaps *get_caps(GstBaseSink *sink, GstCaps *filter);
50 static gboolean set_caps(GstBaseSink *sink, GstCaps *caps);
51
52 static gboolean propose_allocation(GstBaseSink *sink, GstQuery *query);
53
54 static GstFlowReturn wait_event(GstBaseSink * sink, GstEvent * event);
55 static GstFlowReturn render(GstBaseSink *sink, GstBuffer *buffer);
56
57private:
58 QGstreamerVideoSink *sink = nullptr;
59};
60
61
62class QGstSubtitleSinkClass
63{
64public:
65 GstBaseSinkClass parent_class;
66};
67
68QT_END_NAMESPACE
69
70#endif
71

source code of qtmultimedia/src/plugins/multimedia/gstreamer/common/qgstsubtitlesink_p.h