How intercept comming frames from camera

jmimi

Hi
I capture video from webcam and record it using QMediaRecorder.
Which way existed that I can do 2 below actions ?

catch every frame comming from camera
manipulate that frame

One of usecases is that I wnat to do is, magnifying the video before saving on disk (and also show it when saving)
I use QVideoProbe but I'm not lucky.
In blow code, "ctrl" is null, so there is no signal from video probe.
@ bool res = videoProbe->setSource(mediRecorder);
QMediaObject *obj = mediaRecorder->mediaObject();
QMediaService *srv = obj->service();
QMediaControl ctrl = srv->requestControl<QMediaVideoProbeControl>();@

Best
Ebrahim

jmimi

The answer is that implementing a custom class of QAbstractVideoSurface

lygstate

Is there any demo code for that?

andreyc

take a look on examples/multimediawidgets/customvideowidget

lygstate

I am using it under Android, so the QWidget is not works, I want to use qml to capture each frame of the video that provided by the rear camera, how to do that.

lygstate

It's solved, refer to "The QCamera doesn’t works with QVideoProbe under Win32.
":http://qt-project.org/forums/viewthread/38472/#162925