Unfortunately, Qt commercial license support folks are confirming that,
currently (as of Qt 5.6), there is no way to get a sequence of
programmatically generated QImages (e.g. renders from an application
QWidget) into the QMediaRecorder class. ("There is no API for that").
Related -- they
Well your QImages are going to display device optimized, your video needs to be YUV (or some other video format) There exists a multitude of utlities that can take images and use them as frames. FFMPeg is one. GraphicsMagick (Like ImageMagick but MIT licensed) is another. Availible as exe or
Relative to this topic, "*Video file generation from Qt application,*
other than FFmpeg" (on this "interest" e-mail list, in the wrong place,
and also thread:
https://forum.qt.io/topic/63105/video-file-generation-from-qt-application-other-than-ffmpeg)
there's been suggestions in related Qt
