Dolby Vision now possible through MP4 Mux.

[chrisdm]

damn this is so strange... So 4000nits content works but not 1000nits.

Hey mate, question. Can your script inject DV metadata from a DV release into an HDR10+ release, is that possible? Or does HDR10+ have to be converted to DV?

[RESET_9999]

Hey mate, question. Can your script inject DV metadata from a DV release into an HDR10+ release, is that possible?

yes sure.
The script can also be configured to remove HDR10plus while injecting in case someone use a device that don't like when the video has two dynamic metadata..

[Big-rome]

Reset, after baking the BL and EL (with DoViBaker, I presume), what are the steps to get the original RPU converted to P8?

Did you succeed with the conversion to P8?

[RESET_9999]

RESET_9999
I'd like to notice that "RPU p8.1 L1.L2_cmv29.Edited.3696" test triggers picture adjustments for all trims except probably ms_weight on ShieldTV+Bravia in LLDV mode.
Not sure what ms_weight should change and where to look.
Other versions of L1.L2_cmv29 doesn't work on ShieldTV in LLDv properly.

L11 remains the same, without adjustments.

Finally tested LLDV on the Shield(developer mode) + C2 and got some interesting results...

LLDV (player-led)
L2/L1 works fine
even L2 chroma weight works!!!!
CMV 4.0 (L8) no longer works(L2 works) but only for profile 8.1... strangely p8.4 works...
Multi-pattern performs much better in the colorspace conversion and clipping but blue still has banding (as noted before)
red push: no change, as bad as TV-LED

TV-LED
L1/L2 works fine except L2 chroma weight which has no effect
CMV4.0 works fine
Multi pattern has a lot of colorspace conversion/clipping issues.


So I think it's actually better to force LLDV on the Shield.

[dom61]

@RESET_9999
Sorry for the stupid question.
When I perform clip or file analysis in DaVinci, which color space do I choose P3 or BT 2020?
Having set the color space:





Thanks

[RESET_9999]

Everything you need is in the tutorial video and BTW, that is not how your resolve project should be set.

or just import my resolve DV preset:
https://drive.google.com/file/d/10lYNFS ... share_link

[dom61]

Thank you

[aboulfad]

Multi-pattern performs much better in the colorspace conversion and clipping but blue still has banding (as noted before)

Can you please explain what Multi.Pattern.1000nits P8 DV HDR10-newTVs.mp4 color space conversion box is supposed to show ?

Using ATV4k->Infuse (P8 to P5)->LG OLED E7, I see 2 rows green and red, with flashing squares inside that don't extend to the end, and the red row has a solid red patch roughly 1/3 the row size on the right. Is there an overall description of that test pattern somewhere ? Merci : )

[RESET_9999]

Multi-pattern performs much better in the colorspace conversion and clipping but blue still has banding (as noted before)

Can you please explain what Multi.Pattern.1000nits P8 DV HDR10-newTVs.mp4 color space conversion box is supposed to show ?

Using ATV4k->Infuse (P8 to P5)->LG OLED E7, I see 2 rows green and red, with flashing squares inside that don't extend to the end, and the red row has a solid red patch roughly 1/3 the row size on the right. Is there an overall description of that test pattern somewhere ? Merci : )

explanation: https://spearsandmunsil.com/portfolio-i ... r-space-3/
how it looks on multiple devices: https://slow.pics/c/BgatG8CS

[aboulfad]

explanation: https://spearsandmunsil.com/portfolio-i ... r-space-3/
how it looks on multiple devices: https://slow.pics/c/BgatG8CS

wowsa, merci beaucoup ; ) I guess buying the UHD4K S&M disc once it's available is a must. I will read the super long page and learn. I take it out of the 6 images, the x800 should be the reference ? is the x800 a camera shot of the C2 or C8 ?

[RESET_9999]

x800, Chromecast and C8 images are the only devices that don't show any issue with this pattern. Your oppo should look the same, curious about ATV...

All the image are from a device connected to the C2
C8 pic is from plex internal player. (C8 is no longer calibrated and probably over track)

[aboulfad]

Took me forever to get some ok (not fully representative of what I see) shots with my old iPhoneX (RAW -> JPG):
https://slow.pics/c/7Nmrryfs
- atv22-inf752-E7.JPG: Using Infuse 7.5.2 (auto), ATV4K 2022 with LG OLED E7
- oppo-E7.JPG: Oppo player accessing pattern file over SMB, LG OLED E7 (nice to know it supports P8)

I think that Infuse and/or ATV processing lacks proper colour space conversion between P8 and P5 (expected), initial quick observations without reading yet the S&M page. A thorough analysis requires reading & understanding that link as well checking the on screen image not the camera shots.

- Top row edge rectangle different circle colours
- Surrounding rectangles different colours
- Colour space conversion, red row has a solid 1/3 patch in red
- 3rd row of rectangles different colours
- Y Low, Cr low clipped

PS: the S&M pdf says no DoVi test patterns, how did that multi pattern become DoVi P8 ?

[RESET_9999]

interesting, thanks man.
crazy how every device behaves differently, even in TV-LED when the TV is supposed to do everything.

[aboulfad]

^^^ I wouldn’t call my camera shots anything worth much until I have a better capture device, learn the test pattern and check everything with my Oppo, which as we know can set to either player or TV led. That brings me to an earlier Q I had, what “device” do you use to capture screenshots in your media chain ?

I wonder how do any of those color space conversion and other differences contribute to when watching a converted UHD rip P7 (Mel) to P8 (dovi_tool) to Infuse (ATV P5 or P8). I did process few scenes from two movies, it’s hard subjectively to find anything that stands out unless one can take screenshots or quickly switch between Oppo & ATV (which is like 15s…)

[RESET_9999]

what “device” do you use to capture screenshots in your media chain ?

with a DLSR camera, you can lock the auto-exposure and all the other settings.

did a bunch of comparisons this way on my youtube channel.