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
165
166
167
168
169
170
171
172
173
174
175
176
|
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "avfvideowidget.h"
#include <QtCore/QDebug>
#include <AVFoundation/AVFoundation.h>
#include <QtGui/QResizeEvent>
#include <QtGui/QPaintEvent>
#include <QtGui/QPainter>
QT_USE_NAMESPACE
AVFVideoWidget::AVFVideoWidget(QWidget *parent)
: QWidget(parent)
, m_aspectRatioMode(Qt::KeepAspectRatio)
, m_playerLayer(0)
, m_nativeView(0)
{
setAutoFillBackground(false);
}
AVFVideoWidget::~AVFVideoWidget()
{
#ifdef QT_DEBUG_AVF
qDebug() << Q_FUNC_INFO;
#endif
if (m_playerLayer) {
[m_playerLayer removeFromSuperlayer];
[m_playerLayer release];
}
}
QSize AVFVideoWidget::sizeHint() const
{
return m_nativeSize;
}
Qt::AspectRatioMode AVFVideoWidget::aspectRatioMode() const
{
return m_aspectRatioMode;
}
void AVFVideoWidget::setAspectRatioMode(Qt::AspectRatioMode mode)
{
if (m_aspectRatioMode != mode) {
m_aspectRatioMode = mode;
updateAspectRatio();
}
}
void AVFVideoWidget::setPlayerLayer(AVPlayerLayer *layer)
{
if (m_playerLayer == layer)
return;
if (!m_nativeView) {
//make video widget a native window
#if defined(Q_OS_OSX)
m_nativeView = (NSView*)this->winId();
[m_nativeView setWantsLayer:YES];
#else
m_nativeView = (UIView*)this->winId();
#endif
}
if (m_playerLayer) {
[m_playerLayer removeFromSuperlayer];
[m_playerLayer release];
}
m_playerLayer = layer;
CALayer *nativeLayer = [m_nativeView layer];
if (layer) {
[layer retain];
m_nativeSize = QSize(m_playerLayer.bounds.size.width,
m_playerLayer.bounds.size.height);
updateAspectRatio();
[nativeLayer addSublayer:m_playerLayer];
updatePlayerLayerBounds(this->size());
}
#ifdef QT_DEBUG_AVF
NSArray *sublayers = [nativeLayer sublayers];
qDebug() << "playerlayer: " << "at z:" << [m_playerLayer zPosition]
<< " frame: " << m_playerLayer.frame.size.width << "x" << m_playerLayer.frame.size.height;
qDebug() << "superlayer: " << "at z:" << [nativeLayer zPosition]
<< " frame: " << nativeLayer.frame.size.width << "x" << nativeLayer.frame.size.height;
int i = 0;
for (CALayer *layer in sublayers) {
qDebug() << "layer " << i << ": at z:" << [layer zPosition]
<< " frame: " << layer.frame.size.width << "x" << layer.frame.size.height;
i++;
}
#endif
}
void AVFVideoWidget::resizeEvent(QResizeEvent *event)
{
updatePlayerLayerBounds(event->size());
QWidget::resizeEvent(event);
}
void AVFVideoWidget::paintEvent(QPaintEvent *event)
{
QPainter painter(this);
painter.fillRect(rect(), Qt::black);
QWidget::paintEvent(event);
}
void AVFVideoWidget::updateAspectRatio()
{
if (m_playerLayer) {
switch (m_aspectRatioMode) {
case Qt::IgnoreAspectRatio:
[m_playerLayer setVideoGravity:AVLayerVideoGravityResize];
break;
case Qt::KeepAspectRatio:
[m_playerLayer setVideoGravity:AVLayerVideoGravityResizeAspect];
break;
case Qt::KeepAspectRatioByExpanding:
[m_playerLayer setVideoGravity:AVLayerVideoGravityResizeAspectFill];
break;
default:
break;
}
}
}
void AVFVideoWidget::updatePlayerLayerBounds(const QSize &size)
{
m_playerLayer.bounds = CGRectMake(0.0f, 0.0f, (float)size.width(), (float)size.height());
}
|
