v1.2.05, v1.2.05_G Beta version for Z9X 8K/Z30 PRO/Z3000 PRO/UHD8000

I don't know, Mark, why you have such a prejudice against hybrids... It's just metadata taken from another source. Having Z9X, I always downloaded these hybrids in profile 8 and never had any problems with them. They are very common in the segment of the Internet where I take content. And they are so common precisely because they do not cause problems for users

 

Oh ok! I agree on NVEnc encoding being much better now (since Nvidia 40xx series... before I could notice quite some difference in favor of x265 software encoding... but not anymore, specially nailing down settings with Starxrip). But I have to say I'm surprised, I would never have expected you doing re-encodings!

Great you coming to Rome... let me know if you want to grab a glass of wine!

 

@Markswift2003 is actually right! In general there should be no problem, but how can you be 100% sure the HDR grading is actually sourced from the same master? With Disney content things should be quite reliable...but with other label contents, such as DV metadata coming from a USA web-dl and HDR10 issued from another country disc (is that HDR grading actually approved or realized by a local authoring studio? Who knows?)...well things can get tricky: you're just playing poker with the actual HDR picture intent.

 

Can this cause stuttering?

 

No.

 

If there's a particular film I really like or want to keep in full quality, then I do, but for most, because this stuff is all transitory, I just find encoding works extremely well - If you analysed the signal with scopes then I'm sure you'd see a difference, but even at 9 foot across, I see no difference - and it helps with storage.

 

I couldn't put it better than @giangi76 - it's a lottery.

 

Mark, I don't understand what should happen if you lose the lottery? Color distortion? It's just that in our old conversation you claimed that the hybrid in profile 8 (additional metadata) is the cause of problems with playback (stuttering or file freezing)

 

Deliverables for streaming services don't necessarily come from the same grade as say a BluRay disc and also the streaming services bugger around with the encode themselves to fit their own encoding ladder.

The Dolby deliverable workflow starts with a Dolby Master (or mezzanine - a compressed version) and SDR, HLG, HDR10 and DV grades are pulled from that depending on customers' requirements.

However a lot of studios seem to be choosing HDR10 grading over the Dolby workflow these days - I'd like to think because they're realising what a cluster f*** Dolby Vision is - so mixing and matching at best does not follow intent from the post production process and at worst can lead to unexpected results.

It's entirely up to you at the end of the day, but personally I steer well clear - it just seems a bit pointless, particularly with Dolby Vision being such a mess at the best of times.

 

If you are interested in a good write up on the work-flow, I can recommend a couple of articles that explain how some of our customers work*:

• https://mixinglight.com/color-grading-tutorials/color-grading-avatar-colorist-tashi-trieu-part-1/
• https://mixinglight.com/color-grading-tutorials/color-grading-avatar-part-2/

* I work on software that is used by pretty much every studio and has been for the last 30 years.

 

So then I tried 'Daredevil - Born again - DV' at 24 fps. This time got repeated HDMI resync which now needs a reboot to fix. So yet again used Infuse. Sigh...

 

I may try turning off VS10 for DV - but not sure if it actually uses VS10 if its a DV file

 

I'm using LLDV as it is not as bad as TV Led. Ripped blurays are fine. It seems to be TV episodes. Both were profile 8.

 

Awesome - thank you - interesting indeed! I have friends and colleagues doing much the same thing here in the UK and my son works in post production & VFX.

Which software if you don't mind me asking? I assumed Resolve, but then that's not been around that long...

 

Are you baking the EL into the BL whit DoViTool?
(8-2-1)

 

No - way too much like hard work

 

It is heavy process My PC will explode with RTX 4080

 

I keep meaning to try it just out of curiosity, but I'm certainly not a FEL chaser and in fact I'm quite pleased that BD releases seem to be steering more towards HDR10 these days.

My workflow for encoding is quick and easy - probably takes 50 minutes in total. I just extract the RPU, convert it to Profile 8, encode the HDR10 layer with Staxrip/NVEnc and inject the Profile 8 RPU back into the encode - simple.

 

I tried it out of curiosity to see if there was a difference, but with a 5min sample.
I haven't baked a whole movie yet and I'm not sure how many hours it will take