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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
/****************************************************************************
**
** 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 "avfcameradebug_p.h"
#include "avfcameracontrol_p.h"
#include "avfcamerasession_p.h"
#include "avfcameraservice_p.h"
#include "avfcamerautility_p.h"
#include "avfcamerarenderercontrol_p.h"
#include "avfcameraexposurecontrol_p.h"
#include "avfcamerafocuscontrol_p.h"
#include "qabstractvideosurface.h"
QT_USE_NAMESPACE
AVFCameraControl::AVFCameraControl(AVFCameraService *service, QObject *parent)
: QCameraControl(parent)
, m_session(service->session())
, m_service(service)
, m_state(QCamera::UnloadedState)
, m_lastStatus(QCamera::UnloadedStatus)
, m_captureMode(QCamera::CaptureStillImage)
{
Q_UNUSED(service);
connect(m_session, SIGNAL(stateChanged(QCamera::State)), SLOT(updateStatus()));
connect(this, &AVFCameraControl::captureModeChanged, m_session, &AVFCameraSession::onCaptureModeChanged);
}
AVFCameraControl::~AVFCameraControl()
{
}
QCamera::State AVFCameraControl::state() const
{
return m_state;
}
void AVFCameraControl::setState(QCamera::State state)
{
if (m_state == state)
return;
m_state = state;
m_session->setState(state);
Q_EMIT stateChanged(m_state);
updateStatus();
}
QCamera::Status AVFCameraControl::status() const
{
static QCamera::Status statusTable[3][3] = {
{ QCamera::UnloadedStatus, QCamera::UnloadingStatus, QCamera::StoppingStatus }, //Unloaded state
{ QCamera::LoadingStatus, QCamera::LoadedStatus, QCamera::StoppingStatus }, //Loaded state
{ QCamera::LoadingStatus, QCamera::StartingStatus, QCamera::ActiveStatus } //ActiveState
};
return statusTable[m_state][m_session->state()];
}
void AVFCameraControl::setCamera(const QCameraInfo &camera)
{
m_session->setActiveCamera(camera);
}
void AVFCameraControl::updateStatus()
{
QCamera::Status newStatus = status();
if (m_lastStatus != newStatus) {
qDebugCamera() << "Camera status changed: " << m_lastStatus << " -> " << newStatus;
m_lastStatus = newStatus;
Q_EMIT statusChanged(m_lastStatus);
}
}
QCamera::CaptureModes AVFCameraControl::captureMode() const
{
return m_captureMode;
}
void AVFCameraControl::setCaptureMode(QCamera::CaptureModes mode)
{
if (m_captureMode == mode)
return;
m_captureMode = mode;
Q_EMIT captureModeChanged(mode);
}
bool AVFCameraControl::isCaptureModeSupported(QCamera::CaptureModes /*mode*/) const
{
return true;
}
void AVFCameraControl::setVideoSurface(QAbstractVideoSurface *surface)
{
m_session->setVideoSurface(surface);
}
bool AVFCameraControl::canChangeProperty(QCameraControl::PropertyChangeType changeType, QCamera::Status status) const
{
Q_UNUSED(changeType);
Q_UNUSED(status);
return true;
}
QVideoFrame::PixelFormat AVFCameraControl::QtPixelFormatFromCVFormat(unsigned avPixelFormat)
{
// BGRA <-> ARGB "swap" is intentional:
// to work correctly with GL_RGBA, color swap shaders
// (in QSG node renderer etc.).
switch (avPixelFormat) {
case kCVPixelFormatType_32ARGB:
return QVideoFrame::Format_BGRA32;
case kCVPixelFormatType_32BGRA:
return QVideoFrame::Format_ARGB32;
case kCVPixelFormatType_24RGB:
return QVideoFrame::Format_RGB24;
case kCVPixelFormatType_24BGR:
return QVideoFrame::Format_BGR24;
case kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange:
case kCVPixelFormatType_420YpCbCr8BiPlanarFullRange:
return QVideoFrame::Format_NV12;
case kCVPixelFormatType_422YpCbCr8:
return QVideoFrame::Format_UYVY;
case kCVPixelFormatType_422YpCbCr8_yuvs:
return QVideoFrame::Format_YUYV;
case kCMVideoCodecType_JPEG:
case kCMVideoCodecType_JPEG_OpenDML:
return QVideoFrame::Format_Jpeg;
default:
return QVideoFrame::Format_Invalid;
}
}
bool AVFCameraControl::CVPixelFormatFromQtFormat(QVideoFrame::PixelFormat qtFormat, unsigned &conv)
{
// BGRA <-> ARGB "swap" is intentional:
// to work correctly with GL_RGBA, color swap shaders
// (in QSG node renderer etc.).
switch (qtFormat) {
case QVideoFrame::Format_ARGB32:
conv = kCVPixelFormatType_32BGRA;
break;
case QVideoFrame::Format_BGRA32:
conv = kCVPixelFormatType_32ARGB;
break;
case QVideoFrame::Format_NV12:
conv = kCVPixelFormatType_420YpCbCr8BiPlanarFullRange;
break;
case QVideoFrame::Format_UYVY:
conv = kCVPixelFormatType_422YpCbCr8;
break;
case QVideoFrame::Format_YUYV:
conv = kCVPixelFormatType_422YpCbCr8_yuvs;
break;
// These two formats below are not supported
// by QSGVideoNodeFactory_RGB, so for now I have to
// disable them.
/*
case QVideoFrame::Format_RGB24:
conv = kCVPixelFormatType_24RGB;
break;
case QVideoFrame::Format_BGR24:
conv = kCVPixelFormatType_24BGR;
break;
*/
default:
return false;
}
return true;
}
AVCaptureConnection *AVFCameraControl::videoConnection() const
{
if (!m_session->videoOutput() || !m_session->videoOutput()->videoDataOutput())
return nil;
return [m_session->videoOutput()->videoDataOutput() connectionWithMediaType:AVMediaTypeVideo];
}
QCameraFocusControl *AVFCameraControl::focusControl()
{
return m_service->cameraFocusControl();
}
QCameraExposureControl *AVFCameraControl::exposureControl()
{
return m_service->cameraExposureControl();
}
QCameraImageProcessingControl *AVFCameraControl::imageProcessingControl()
{
return nullptr;
}
#include "moc_avfcameracontrol_p.cpp"
|
