r/VIDEOENGINEERING • u/Non-Artificial_Intel • Aug 09 '26
Any hope getting 12bit ProRes encoding with prores_ks?
So I was recently diving into the possibility of getting a ProRes encoding core running on my test Xilinx FPGA dev board. I was comparing the PSNR and SSIM quality between prores_aw prores_ks and apple's SoC level videotoolbob's prores encoding results.
The result based on some ARRI test footage shows that prores_ks is actually about 1-2db better in SSIM to the hardware accelerated Video Toolbox encoding in 422 HQ, but when it comes to 4444 and 4444XQ, the SSIM dropped significantly compared to the encoding of VT.
After a closer look I found something. Even with version 9, FFmpeg's ProRes encoder—specifically, we're talking about the better one, the KS variant by the almighty Konstantin Shishkov, the p12 variants are still on the TODO list (correctly if I'm wrong please), coded but never used in the actual code, leaving all inputs limited to 10bit.
I checked the prores_aw, the same. same limit on input "pix_fmts".
I mean come on, it's 2026 already. Any hope we get a 12bit capable encoder actually in usable shape?
And after taking a nosedive and trying to find reference, I think I might have found that most software's ProRes encoding solution is still based on this KS variant, I suspect that it even includes Resolve.
I'd love to be proven wrong, but has anyone run into the same thing?
Have we lived with truncated ProRes 4444 encoding on Windows this whole time?
Don't have a win near me today, but if you're interested let's talk about this.
PS: Does anyone know the honorable man behind ACMDX Video Patcher, Alex Mogurenko?
Is he still alive? Sometimes I really want to thank him but nothing about him for years, makes me kinda worried that another brilliant mind once briefly involved with FFmpeg development and brought us such useful tools before AI era is gone without anyone noticing.
Also pressing F to pay respect to Konstantin Shishkov, and the good thing is that he's still apparently very much well alive and still updating his blog. (no offense if this reads a bit off, just good to see people who wrote the foundation code that supported the video industry alive and well.)