[Cin] The best strategy to render yuv (mpeg, limited range) from yuvj (jpeg, full range)?

[Tarantas]

On Wed, 28 Aug 2024 02:35:56 +0300
Andrew Randrianasulu <randrianasulu at gmail.com> wrote:

> >  - JPEG in "preferences";  
> 
> Unfortunately, this setting controls both input and output color range
> (swscaler, part of ffmpeg).

By the way, do "F_" video filters works with 32-float RGB?
It looks like they do, but I'm not sure.

> So I think you need to put some kind of filter either doing full-range
> -> limited range on input media,  
> or full range-> limited range for whole file on output ....

For now figured out this way:
 - in render options, "color_range=mpeg";
 - at the top of ready project - "F_colorspace" filter.
Interestingly enough the native "ColorSpace" filter doesn't work
properly and cuts the dynamic range not where it supposed to. I don't
know why. This deserve a bug report.

But this way with the extra filter sucks. You could forgot about it and
receive the result with an increased contrast. You could forgot about
it being enabled and wonder why your histogram tweaking doesn't work.

Wait, could I just type "vf=colorspace" into render settings?..