[Interest] What's the best of way of making a video processing pipeline in Qt?

[Nuno Santos]

Hi,

I’m looking to create a pipeline of video processing with C++ only.

I want for instance to create render a video, then an apply a blur effect, followed by a tilt effect, followed by hue shift effect, and so on. 

I also want to be able to switch the order of the effects.

I know this is possible to make using Qml but I want to have more low level and dynamic control and be able to do this from C++. Is this even possible using Qt only?

I believe a single QQuickItem is able to render source but in order to process is I need to be able to pass the output of that quick item to another quick item which will apply the effect on it.

This was the strategy used in a higher level from the Qml side using the multi effect source. Isn’t that correct? But is this possible to do with Qt 6 and C++ only? Is there any API I should be aware of?

Please advise.

Thanks in advance.

With my best regards,

Nuno