Port Cube

tormento · Post by **tormento** » Fri Jun 16, 2023 6:24 pm

Rocky wrote: ↑
Fri Jun 16, 2023 5:24 pm
Have you tried DGPQtoHLG? I'm willing to address any issues you have with it.

Yes and the quality you can achieve with a LUT is another world. Plus you can customize the LUT according to your preferences or the effect you want to achieve.

Post by **Rocky** » Fri Jun 16, 2023 8:13 pm

PQ to HLG is a well-defined specification that we follow. All this "another world" stuff is nonsense.

Levi · Post by **Levi** » Sun Jun 18, 2023 6:52 pm

Post by **Sherman** » Tue Jun 20, 2023 12:22 pm

The malcontents should learn to code. It's so easy!

Curly · Post by **Curly** » Tue Jun 20, 2023 12:41 pm

Easy 4 u 2 say.

Post by **Baltasar** » Tue Jun 20, 2023 3:43 pm

This worked for me.

Post by **Rocky** » Wed Jun 21, 2023 3:46 pm

There are ample resources for learning CUDA. We published sample source code for a CUDA filter, and documented our full dialog with nVidia during the development of DGDecNV. Everything you need is in the nVidia SDKs, API documentation, and developer forum. Focus, persistence, and attention to detail!

The zimg/avsresize authors...maybe they'd be willing to work with us to port their stuff to CUDA. I'd be more than happy to help. I could add some CUDASynth magic to eliminate extra PCIe transfers, etc. Their filters can remain standalone and fully in their control. We'll help for free. That seems like the most likely path to reach the promised land.

Post by **Rocky** » Sun Jul 02, 2023 7:55 am

tormento wrote: ↑
Wed Aug 10, 2022 10:08 am
P.S: Will you add tetrahedral to AVSCube too?

sekrit-twc has added tetrahedral to timecube so after it is ported to AVS we can ditch DGCube and stop all the associated nonsense.

tormento · Post by **tormento** » Sun Jul 02, 2023 4:32 pm

Rocky wrote: ↑
Sun Jul 02, 2023 7:55 am
Then we can ditch DGCube and stop all the associated nonsense.

Not everybody has a 56 core CPU. Someone still relies on GPU. (me)

Post by **Rocky** » Sun Jul 02, 2023 4:34 pm

Oh OK. We'll keep it then.

tormento · Post by **tormento** » Tue Jul 04, 2023 3:52 am

Rocky wrote: ↑
Sun Jul 02, 2023 4:34 pm
Oh OK. We'll keep it then.

https://github.com/rigaya/NVEnc/blob/ma ... ram2value2

lut3d=<string>
Apply a 3D LUT to an input video. Currently supports .cube file only.

lut3d_interp=<string>
nearest, trilinear, tetrahedral, pyramid, prism

I think this could ease my pain.

I could use nvenc to encode to lossless intermediate and then proceed with x265.

Do you think is now feasible to use the source code to implement it in DGCube?

Post by **Rocky** » Tue Jul 04, 2023 7:42 am

tormento wrote: ↑
Tue Jul 04, 2023 3:52 am
Do you think is now feasible to use the source code to implement it in DGCube?

Implement what? Please be specific and precise.

And what is your pain exactly? You cannot implement some desired processing? Or you can but it doesn't run as fast as you'd like?

tormento · Post by **tormento** » Tue Jul 04, 2023 12:55 pm

Rocky wrote: ↑
Tue Jul 04, 2023 7:42 am
Implement what? Please be specific and precise.

Nothing, Rocky. I think I won't bug you again about DGCube.

I have eased my pains applying LUT with NVEnc to an intermediate lossless HEVC and then encoded it with standard x265. Easy peasy and unbelievably fast.

Thanks again for having implemented HEVC 4:4:4 decoding

Post by **Rocky** » Tue Jul 04, 2023 1:28 pm

tormento wrote: ↑
Tue Jul 04, 2023 12:55 pm
I have eased my pains...

Won't you have the grace to explain what your pains are after I explicitly asked and after all I've done for you over the years.

tormento · Post by **tormento** » Tue Jul 04, 2023 2:05 pm

Rocky wrote: ↑
Tue Jul 04, 2023 1:28 pm
Won't you have the grace to explain what your pains are after I explicitly asked and after all I've done for you over the years.

As I told many times, my CPU is too old and slow to comfortably apply zimg conversion and have a correct PQ to HLG transformation, using DGCube.

I have squeezed my brain to find a workaround and I am testing NVEnc to do all the job but the final encode.

It does everything in HW, fast and clean, tetrahedral included.

1080p SDR to HLG 160.65 fps
2160p PQ to HLG 42.90 fps

The only issue is storage requirements but I can cope with that.

Post by **Rocky** » Tue Jul 04, 2023 2:14 pm

It's not just storage, it's the time to write out massive lossless streams and then read them again. And having to encode twice. That's not fast and it's certainly not clean. Nevertheless I'm happy you have what you consider to be an adequate workaround for your pains.

As I told many times

That feels rude and unfriendly. And who knows what "comfortable" means for you?

my CPU is too old and slow

When you upgrade your HW for HEVC lossless, think too about upgrading your CPU.

Post by **Rocky** » Fri Jul 07, 2023 10:05 am

Hehe, I have successfully ported sekrit-twc's latest vscube to AVS+. Still have to fix up some loose ends but it's running fine with tetrahedral and all cpu modes. It took just less than 3 hours to port.

Post by **Rocky** » Sat Jul 08, 2023 12:36 pm

Here is a test release of the AVS+ support for sekrit-twc's latest vscube. Refer to the user manual for syntax and examples. Your test results will be greatly appreciated. My testing shows the AVS+ version with prefetch(6) to be faster than the Vapoursynth version.

https://rationalqm.us/cube/AVSCube_test.rar

Say thank you.

Post by **Sherman** » Sat Jul 08, 2023 12:59 pm

Rocky wrote: ↑
Fri Jul 07, 2023 10:05 am
It took just less than 3 hours to port.

You're slipping, Rocky. Do you need to get some young blood involved?

Post by **Natasha** » Sat Jul 08, 2023 1:00 pm

Sherman wrote: ↑
Sat Jul 08, 2023 12:59 pm
young blood

The best kind!

Post by **Rocky** » Tue Jul 11, 2023 10:05 am

The timecube+AVS support test build was relocated:

https://rationalqm.us/cube/

All the cube stuff is now together in directory cube.

Post by **Rocky** » Wed Jul 12, 2023 5:05 am

Here is an updated test build for AVS+ support for sekrit-twc's vscube. It includes sekrit-twc's bug fix for the AVX2 support of tetrahedral mode.

https://rationalqm.us/cube/AVSCube_test.rar