Blackmagic Forum

with the new version of screen player from videovillage i can play the 12K BRAW files on my old macpro ; -)

https://videovillage.co/screen/



c'mon blackmagic do it for resolve!


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after moving to the resolve area, this unfortunately goes down here :- (

I have found the performance of 12K decode at about half or a bit less of 8K, so Blackmagic Raw Speed test for 8K gives a hint of theoretical max speed. Real speed depends on a lot of things, player architecture being one major factor. Problem with full 12K in Resolve is humongous gpu ram need, while decoder itself needs currently around 1.5GB of vram at minimum for 12K full res decode (when doing cpu decode).

it is only about the fact that 12k files are usable at all in BRAW player or resolve
without the programs immediately crashing with it on an, in many studios still used, old macpro.

If it crashes it is a bug, there isn't anything in braw decoder afaik that would completely exclude these kind or older machines. Only thing is the under the hood gpu use which Captain Hook can maybe comment from technical side can prevent you from using the decoder (hardware limitation of compute capability). Whether the host software decides to crash is purely host's problem. When braw sdk 2.x gets out of beta they hopefully remove the gpu necessity, then it should work on anything that supports at least I believe SSE4.1 instruction set, available widely from somewhere around 2008.

also UAD should have removed the AVX requirement from LUNA
and thus LUNA should now run on cMP 5.1 with titan ridge TB3 card!

Hendrik Proosa wrote:If it crashes it is a bug, there isn't anything in braw decoder afaik that would completely exclude these kind or older machines. Only thing is the under the hood gpu use which Captain Hook can maybe comment from technical side can prevent you from using the decoder (hardware limitation of compute capability). Whether the host software decides to crash is purely host's problem. When braw sdk 2.x gets out of beta they hopefully remove the gpu necessity, then it should work on anything that supports at least I believe SSE4.1 instruction set, available widely from somewhere around 2008.

only according to BMD AVX is currently required for BRAW 2.x

Mark Foster wrote:only according to BMD AVX is currently required for BRAW 2.x

Accoding to v2.0 beta sdk docs I can set instruction set to SSE4.1 and I can’t find it saying about it not being supported with 12K files. Can you point somewhere where it is stated as such, I have missed it I think?

12K BRAW playback currently doesn't work on older 4,1/5,1 MacPros, due to insufficient CPU instruction set support.

This may possibly be addressed in the future, but also may not be.

Dwaine Maggart wrote:12K BRAW playback currently doesn't work on older 4,1/5,1 MacPros, due to insufficient CPU instruction set support.

This may possibly be addressed in the future, but also may not be.

And this needed minimum instruction set is... if it isn't SSE4.1?
It would be great if CaptainHook could elaborate on this topic a bit.

Dwaine Maggart wrote:12K BRAW playback currently doesn't work on older 4,1/5,1 MacPros, due to insufficient CPU instruction set support.

This may possibly be addressed in the future, but also may not be.

hi dwaine

but it play now with the screen player on my 5,1 macpro
and also UAD change their LUNA software to working now at the old macpro.

and i am still convinced that there are a lot of 5.1 macpros in many studios and freelance workers.

especially since most, like me, are waiting for a better workstation with apple silicon
in the next 2 years and want to continue to work with this 10 year old workhorse until the time comes.

Hendrik Proosa wrote:And this needed minimum instruction set is... if it isn't SSE4.1?
It would be great if CaptainHook could elaborate on this topic a bit.

it isn't SSE4.1 - it is AVX

Mark Foster wrote:it isn't SSE4.1 - it is AVX

And I ask again, where do you get this information that minimum is AVX? Because I'm unable to find it.

here in the readme:



and i think the "or" is wrong in this document

You'll note that SSE 4.1 support does work up through 6K BRAW files.

It's only 12K files that don't work.

Again, the BRAW team is aware, and might be able to fix that in the future.

Dwaine Maggart wrote:You'll note that SSE 4.1 support does work up through 6K BRAW files.

It's only 12K files that don't work.

Again, the BRAW team is aware, and might be able to fix that in the future.

THANX dwaine!

My suggestion would be to state it in release notes, currently it doesn’t say that, whichever way you look at it.

The just released Resolve 17.1 version should allow MacPro 5,1 systems to now decode BRAW 12K files.

Wow, you really care for those old workhorses!

Dwaine Maggart wrote:The just released Resolve 17.1 version should allow MacPro 5,1 systems to now decode BRAW 12K files.

YEEEAAAHHHH ; -)


thanx



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