summaryrefslogtreecommitdiffstats
path: root/examples/video/qmlvideo/qml/qmlvideo/Content.qml
blob: 650eea1ef7308d1dd9f0fd24cfcd73bbc5962772 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 2.0

Rectangle {
    id: root
    border.color: "white"
    border.width: showBorder ? 1 : 0
    color: "transparent"
    property string contentType // "camera" or "video"
    property string source
    property real volume
    property bool dummy: false
    property bool autoStart: true
    property bool started: false
    property bool showFrameRate: false
    property bool showBorder: false

    signal initialized
    signal error
    signal videoFramePainted

    Loader {
        id: contentLoader
    }

    Connections {
        id: framePaintedConnection
        onFramePainted: {
            if (frameRateLoader.item)
                frameRateLoader.item.notify()
            root.videoFramePainted()
        }
        ignoreUnknownSignals: true
    }

    Connections {
        id: errorConnection
        onFatalError: {
            console.log("[qmlvideo] Content.onFatalError")
            stop()
            root.error()
        }
        ignoreUnknownSignals: true
    }

    Loader {
        id: frameRateLoader
        source: root.showFrameRate ? "../frequencymonitor/FrequencyItem.qml" : ""
        onLoaded: {
            item.parent = root
            item.anchors.top = root.top
            item.anchors.right = root.right
            item.anchors.margins = 10
        }
    }

    onWidthChanged: {
        if (contentItem())
            contentItem().width = width
    }

    onHeightChanged: {
        if (contentItem())
            contentItem().height = height
    }

    function initialize() {
        console.log("[qmlvideo] Content.initialize: contentType " + contentType)
        if ("video" == contentType) {
            console.log("[qmlvideo] Content.initialize: loading VideoItem.qml")
            contentLoader.source = "VideoItem.qml"
            if (Loader.Error == contentLoader.status) {
                console.log("[qmlvideo] Content.initialize: loading VideoDummy.qml")
                contentLoader.source = "VideoDummy.qml"
                dummy = true
            }
            contentLoader.item.volume = volume
        } else if ("camera" == contentType) {
            console.log("[qmlvideo] Content.initialize: loading CameraItem.qml")
            contentLoader.source = "CameraItem.qml"
            if (Loader.Error == contentLoader.status) {
                console.log("[qmlvideo] Content.initialize: loading CameraDummy.qml")
                contentLoader.source = "CameraDummy.qml"
                dummy = true
            }
        } else {
            console.log("[qmlvideo] Content.initialize: error: invalid contentType")
        }
        if (contentLoader.item) {
            contentLoader.item.sizeChanged.connect(updateRootSize)
            contentLoader.item.parent = root
            contentLoader.item.width = root.width
            framePaintedConnection.target = contentLoader.item
            errorConnection.target = contentLoader.item
            if (root.autoStart)
                root.start()
        }
        console.log("[qmlvideo] Content.initialize: complete")
        root.initialized()
    }

    function start() {
        console.log("[qmlvideo] Content.start")
        if (contentLoader.item) {
            if (root.contentType == "video")
                contentLoader.item.mediaSource = root.source
            contentLoader.item.start()
            root.started = true
        }
    }

    function stop() {
        console.log("[qmlvideo] Content.stop")
        if (contentLoader.item) {
            contentLoader.item.stop()
            if (root.contentType == "video")
                contentLoader.item.mediaSource = ""
            root.started = false
        }
    }

    function contentItem() { return contentLoader.item }
    function updateRootSize() { root.height = contentItem().height }
}