Cineform RAW UHD for testing

Here is UHD Cineform RAW file for testing specially for those with poor CPU and eGPU (ignore its look):

https://drive.google.com/open?id=1qYQD1 ... dq9kII8lLJ

Assuming your GPU can cope with debayering (there is no setting for Cineform debayering atm., so it can't be set to 1/2 resolution) you should see how easy it's for CPU. Proxy modes 1/2, 1/4 do not work for CF RAW files (only for "normal" Cf files), but you most likely won't even need it. If one day we had Cineform RAW in camera+ full support in Resolve with all settings we could edit 8K RAW on laptops.

This was converted from ARRI LF RAW source and CF RAW needed fairly low bitrate for it (because it's clean/good quality?), even if I used FilmScan2 setting. I've done quick test with PSNR and on actual RAW data and it was about 57dB, so very high (even if frames are by average about 2MBytes only).

Eh... you shoot against red Cruz
I have a cineform premium license, raw4pro license, I know how is good, fast, easy to use cineform raw, but seem that the world prefer to forget it. The world prefer to believe to miracle of prores raw which offer 1% of what cineformraw offer 10 years ago....
debayering real-time, proxymode realtime, Lut and active metadata color application and more... stereo flux on single file, alignment and color correction database driven, raw development on every software, ability to convert every raw in cineform, easy to edit on dual core, and many other features...
Thanks a lot go pro to kill real cineform power


Inviato dal mio iPhone utilizzando Tapatalk

Here is UHD Cineform RAW file for testing specially for those with poor CPU and eGPU (ignore its look):

https://drive.google.com/open?id=1qYQD1 ... dq9kII8lLJ

I get a 'Not Found - Error 404' with that link Andrew.

Fixed:

https://drive.google.com/open?id=1qYQD1 ... dq9kII8lLJ

Wow, plays back smooth at 24fps with Resolve restricted to only 2 cores/2 threads. That's pretty unbelievable.

Yep, beauty of good codec. Yet we are forced to buy expensive machines, so we can decode CinemaDNG

Is your GPU stressed doing debayering?
Also- what is your machine?

I'm using a Threadripper 1950X at 3.7GHz, with 2x 1080 Ti. When looping the clip on the color page, first GPU is about 33%, second GPU 20%, and CPU about 15%.

Ok. On close to 4GHz machine probably even 1 core can deal with 24p playback.

I assume GPU load is higher than playing "normal" UHD file (DNxHR, ProRes) as Resolve does its own GPU debayerign for RAW CF files (opposite to "built-in CF codec" simple CPU debayering).

You can export this file to Cineform RGB and then play this. Check how your CPU will go down with proxy 1/2, 1/4 setting (you have to be in edit page, not media) For RAW CF files this is not supported yet.

I would guess with i7-8700k it would work fine on one core, with the higher clock and better IPC.

I tested with an UHD ProRes XQ clip, and GPU usage was only slightly less on the color page.

Exported to Cineform RGB to try proxy settings, it didn't seem to make a difference in CPU usage.

You need R15b7, be in edit/color page, have Performance Mode enabled (and have its setting to auto or all ticked manually in main preferences). CPU should drop 2x for 1/2 and 4x for 1/4.

Hitfilm (9) gets a performance benefit with Half/Quarter resolution with this Cineform RAW file. Hitfilm has no support for any RAW of any kind so we are just getting the default raw conversion of the Cineform decoder.

~45% CPU and 14% GPU with full res.
~20% CPU and 7% GPU with half res.
8-bit timeline. 16-bit float timeline almost doubles.

Hitfilm is slow/inefficient with timeline playback performance relative to apps like Resolve with any media. I'm only posting this here to list that something out there does/can support partial res decode with Cineform RAW.

I think because Resolve does its own debayering for CF RAW (which is good as CF internal one is rather simple) there is no support for fractional decoding although it doesn't mean it can't be done. Should be easy to implement.
I really would like to see tab for Cineform RAW like for other RAW formats with at least setting for debayering resolution. Or it can be simply linked to proxy setting- half decode/half debayer etc.

You need R15b7, be in edit/color page, have Performance Mode enabled (and have its setting to auto or all ticked manually in main preferences). CPU should drop 2x for 1/2 and 4x for 1/4.

Ah, that did it. I don't use performance mode normally. CPU usage is lower in proxy mode, not by that much, but dropped around 50% for 1/4 mode. GPU usage dropped around 10% on each card.

CF is decoded at smaller resolution, so much less data goes to GPU.
On your CPU proxy mode isn't really needed
On my Mac CPU usage scales linear, 1/2 resolution=2x less CPU usage.