[Feature] Interlacing

[rgm89git]

The changes on the ntscQT system to use interlacing.

(Still not working, need to fix)

Uncaught exception: OpenCV(4.6.0) :-1: error: (-5:Bad argument) in function 'resize'
> Overload resolution failed:
>  - src is not a numerical tuple
>  - Expected Ptr<cv::UMat> for argument 'src'

[SergeyMC9730]

i think i know why JargeZ does not show any activity. The probable reason is very sad

[rgm89git]

I FINALLY FINISHED THE BASIC CORE OF INTERLACING

[JargeZ]

Hi @rgm89git
I was finally find time to see the result
The effect looks good

I only have some implementation tips.
To sum up, abstractions do not pass along the boundaries in the code that were intended.

First, this function must be switchable on/off
not everyone needs to change the default behavior to interlacing, and not everyone needs it

For example, about abstraction:
In the application itself, at a high level in NtscApp, there should be no knowledge about interlacing and division by two

I refactored to simplify the implementation and more correctly fit the new behavior.

Now your task is to add only the necessary logic and override the apply_main_effect method in the InterlacedRenderer render class

You also need to implement the next frame cache.

...
Okay, while I implemented the abstract functionality. I realized that interlacing can is implemented in a small number of lines
I updated your feature branch
Reveal at the simplified implementation and you can make improvements if you have ideas

FYI

• Affine transformations are very heavy in performance and I don’t understand why it is necessary, interlacing does not imply transformations other than frame N+1
• Also in your implementation, you removed the cached video reading, this also really affects performance a lot

[rgm89git]

Don't worry, i will add some fixes i did with the passing of days.

[rgm89git]

Also, about the FYI, THIS (below) is the reason i used an affine transformation.
Maybe exists an better way to fix that, i don't know.

(First line of field 2 is not processed by composite layer)