[Feature Request] Snap an selecting area to 16 pixels grid

[Korb]

Is your feature request related to a problem? Please describe.
I suggest considering the possibility of giving the user the ability to specify the size of the area for video capture, the size of which will be a multiple of 16 × 16 pixels.

Describe the solution you'd like
For all video encoding formats, there are recommendations for the frame size multiple. Previously, it was only 16 (e.g. 640 × 480, 704 × 528, 768 × 576, 832 × 624, 896 × 672, 960 × 720... in the case of a 3:2 ratio). Modern video codecs allow you to effectively optimize video with frames that are multiples of 8 and even 4 pixels (e.g. HEVC). Otherwise, there is a high probability of inefficient encoding, artifacts, and unwanted growth of the file size.

Describe alternatives you've considered
Manual cropping before exporting or using formats that do not make such recommendations.