QVideoSink Class
The QVideoSink class represents a generic sink for video data. More...
| Header: | #include <QVideoSink> |
| CMake: | find_package(Qt6 COMPONENTS Multimedia REQUIRED) target_link_libraries(mytarget PRIVATE Qt6::Multimedia) |
| qmake: | QT += multimedia |
| Inherits: | QObject |
Public Functions
| QVideoSink(QObject *parent = nullptr) | |
| virtual | ~QVideoSink() |
| void | setSubtitleText(const QString &subtitle) |
| void | setVideoFrame(const QVideoFrame &frame) |
| QString | subtitleText() const |
| QVideoFrame | videoFrame() const |
| QSize | videoSize() const |
Detailed Description
The QVideoSink class can be used to retrieve video data on a frame by frame basis from Qt Multimedia.
QVideoSink will provide individual video frames to the application developer through the videoFrameChanged() signal.
The video frame can then be used to read out the data of those frames and handle them further. When using QPainter, the QVideoFrame can be drawing using the paint() method in QVideoSink.
QVideoFrame objects can consume a significant amount of memory or system resources and should thus not be held for longer than required by the application.
See also QMediaPlayer and QMediaCaptureSession.
Member Function Documentation
QVideoSink::QVideoSink(QObject *parent = nullptr)
Constructs a new QVideoSink object with parent.
[virtual] QVideoSink::~QVideoSink()
Destroys the object.
void QVideoSink::setSubtitleText(const QString &subtitle)
Sets the current subtitle text.
See also subtitleText().
void QVideoSink::setVideoFrame(const QVideoFrame &frame)
Sets the current video frame.
See also videoFrame().
QString QVideoSink::subtitleText() const
Returns the current subtitle text.
See also setSubtitleText().
QVideoFrame QVideoSink::videoFrame() const
Returns the current video frame.
See also setVideoFrame().
QSize QVideoSink::videoSize() const
Returns the size of the video currently being played back. If no video is being played, this method returns an invalid size.
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