QVideoProbe

The QVideoProbe class allows you to monitor video frames being played or recorded. More

Inheritance diagram of PySide2.QtMultimedia.QVideoProbe

Synopsis

Functions

Signals

Detailed Description

QMediaPlayer *player = new QMediaPlayer();
QVideoProbe *probe = new QVideoProbe;

connect(probe, SIGNAL(videoFrameProbed(QVideoFrame)), this, SLOT(processFrame(QVideoFrame)));

probe->setSource(player); // Returns true, hopefully.

player->setVideoOutput(myVideoSurface);
player->setMedia(QUrl::fromLocalFile("observation.mp4"));
player->play(); // Start receiving frames as they get presented to myVideoSurface

This same approach works with the QCamera object as well, to receive viewfinder or video frames as they are captured.

class PySide2.QtMultimedia.QVideoProbe([parent=None])
param parent

PySide2.QtCore.QObject

Creates a new QVideoProbe class with parent . After setting the source to monitor with setSource() , the videoFrameProbed() signal will be emitted when video frames are flowing in the source media object.

PySide2.QtMultimedia.QVideoProbe.flush()
PySide2.QtMultimedia.QVideoProbe.isActive()
Return type

bool

Returns true if this probe is monitoring something, or false otherwise.

The source being monitored does not need to be active.

PySide2.QtMultimedia.QVideoProbe.setSource(source)
Parameters

sourcePySide2.QtMultimedia.QMediaObject

Return type

bool

Sets the media object to monitor to source .

If source is zero, this probe will be deactivated and this function wil return true.

If the media object does not support monitoring video, this function will return false.

Any previously monitored objects will no longer be monitored. Passing in the same object will be ignored, but monitoring will continue.

PySide2.QtMultimedia.QVideoProbe.setSource(source)
Parameters

sourcePySide2.QtMultimedia.QMediaRecorder

Return type

bool

Starts monitoring the given mediaRecorder .

If there is no mediaObject associated with mediaRecorder , or if it is zero, this probe will be deactivated and this function wil return true.

If the media recorder instance does not support monitoring video, this function will return false.

Any previously monitored objects will no longer be monitored. Passing in the same object will be ignored, but monitoring will continue.

PySide2.QtMultimedia.QVideoProbe.videoFrameProbed(frame)
Parameters

framePySide2.QtMultimedia.QVideoFrame