help request: upscale any content to 4k + add HDR

[tylertronn]

Hi! I've just come across this tool and I find it really awesome - being able to use nvidia video effects like RTX HDR/VSR is really cool, and I'm currently attempting to use it to upgrade some of my old TV show collections to 4K/HDR; as they were never released in that quality.

I have some questions;

• I am using NVEncC64.exe -i "input.mkv" --vpp-resize algo=ngx-vsr,vsr-quality=4 --vpp-ngx-truehdr --colormatrix bt2020nc --colorprim bt2020 --transfer smpte2084 --output-res 3840x2160 -o "output.mkv" --log-level error,core_progress=info - do you have any recommendations on tweaks? I'd generally like a catch all command that can take any input video file and upgrade it to HDR 4K. From what I understand, this command will take an input file, upscale it using the maximum quality via Nvidia's VSR; add HDR using Nvidia's TrueHDR, and then output output.mkv. Is that correct?

• I see that --vpp-nvvfx-artifact-reduction is an option; but it specifies up to a max of 1080p. What would happen if I wanted to use it on something that isn't 1080p? Also; does that mean 1080p input or output?

• do you know what the different vsr-quality settings do? Is it just "better" upscaling? I presume it respects the output resolution no matter what. Is there much point in using a higher value?

Thank you so so much for the awesome library.

[fzold]

Forget to transfer old tv shows to HDR. Sharp BT709 is good enough.
And for upscaling with AI and GOOD results use Topaz Video AI. But this software is slow and very expensive.
If it were that easy, every new TV could do it.

I started to convert old dvds to 1080p, but ngx-vsr did no good job.

[rigaya]

--vpp-ngx-truehdr

Might want to add --master-display "G(13250,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(10000000,1)" --max-cll "1000,300" for HDR10 metadata.

I see that --vpp-nvvfx-artifact-reduction is an option; but it specifies up to a max of 1080p. What would happen if I wanted to use it on something that isn't 1080p? Also; does that mean 1080p input or output?

It will cause error if the resolution is over 1080p. As it comes before resizing, it is the input resolution which depends.

Do you know what the different vsr-quality settings do? Is it just "better" upscaling?

Unfortunately not, I don't know the details. It should be just better (but slower).