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39
40#include "qvideosurfaces_p.h"
41
42QT_BEGIN_NAMESPACE
43
44QVideoSurfaces::QVideoSurfaces(const QVector<QAbstractVideoSurface *> &s, QObject *parent)
45 : QAbstractVideoSurface(parent)
46 , m_surfaces(s)
47{
48 for (auto a : s) {
49 connect(sender: a, signal: &QAbstractVideoSurface::supportedFormatsChanged, context: this, slot: [this, a] {
50 auto context = property(name: "GLContext").value<QObject *>();
51 if (!context)
52 setProperty(name: "GLContext", value: a->property(name: "GLContext"));
53
54 emit supportedFormatsChanged();
55 });
56 }
57}
58
59QVideoSurfaces::~QVideoSurfaces()
60{
61}
62
63QList<QVideoFrame::PixelFormat> QVideoSurfaces::supportedPixelFormats(QAbstractVideoBuffer::HandleType type) const
64{
65 QList<QVideoFrame::PixelFormat> result;
66 QMap<QVideoFrame::PixelFormat, int> formats;
67 for (auto &s : m_surfaces) {
68 for (auto &p : s->supportedPixelFormats(type)) {
69 if (++formats[p] == m_surfaces.size())
70 result << p;
71 }
72 }
73
74 return result;
75}
76
77bool QVideoSurfaces::start(const QVideoSurfaceFormat &format)
78{
79 bool result = true;
80 for (auto &s : m_surfaces)
81 result &= s->start(format);
82
83 return result && QAbstractVideoSurface::start(format);
84}
85
86void QVideoSurfaces::stop()
87{
88 for (auto &s : m_surfaces)
89 s->stop();
90
91 QAbstractVideoSurface::stop();
92}
93
94bool QVideoSurfaces::present(const QVideoFrame &frame)
95{
96 bool result = true;
97 for (auto &s : m_surfaces)
98 result &= s->present(frame);
99
100 return result;
101}
102
103QT_END_NAMESPACE
104

source code of qtmultimedia/src/multimedia/video/qvideosurfaces.cpp