Dolby Vision now possible through MP4 Mux.

[RESET_9999]

The only problem I see with this method is that the static MDL metadata seems messed up now.

What's that? Will that cause a problem in DV play? If it doesn't affect final image, I wouldn't bother to change it.

Mastering display luminance : min: 19.6608 cd/m2, max: 4000 cd/m2
MasteringDisplay_Luminance_Original : min: 0.0050 cd/m2, max: 4000 cd/m2

Use hdr=none when muxing.

Unfortunately, "hdr=none" cause the LPCM audio to play as stereo so I guess Apple users will have to live with the messed-up static MDL.
the ATV is REALLY picky!!!

[RESET_9999]

I think I found a huge bug on the x700/ x800m2 / C2, even worse than the red push or the lack of FEL support
The L1 brightness changes are totally different than the C2 internal plex and the Shield(which have newer DV engine) but L2 looks exactly the same on all the devices.
By different I mean they are much much less noticeable on the x700/ x800m2 . like 400% difference, no exaggeration. Even less noticeable than Windows 10 HDR10 P8 playback lol.

If you take the out-of-sync version of the Spears and Munsil clip, because the trim passes are active with L1 at the same time, you can barely see a difference between all the devices.
But if you strip out the trims by generating new metadata with madVR (just L1), then again a big difference in the L1 brightness changes.
Tried MP4 / TS, and it makes no difference.cmv2.9, cmv4.0, old mp4muxer, new mp4muxer.

maybe the newer DV engine of the C2/shield vs the older one from x700/x800m2 cause the issue?
I guess I have to connect my old C8 to find out...

pattern to reproduce:
quietvoid's rpu test: https://drive.google.com/file/d/1hAv4eJ ... sp=sharing
SM clip out of sync original: https://drive.google.com/file/d/1BxsK7- ... sp=sharing
SM clip out of sync no L2 (madvr): https://drive.google.com/file/d/1CuWlHK ... sp=sharing

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EDIT: no issue on the C8 + x700/x800m2 vs internal player, L1 changes as pronounced as on the C2/shield.
so it looks like there's something going on when using a CMv2.9 HDMI device to a CMv4.0 TV... Or maybe just something with my C2, I hope people with C1,CX will do the same test
I guess I just lost fel and lossless audio support

bug confirmed on:
LG C2 + x700 + x800m2
LG G2 + oppo: viewtopic.php?p=124746#p124746
LG C1 + x800m2: viewtopic.php?p=124868#p124868
LG C9 + x700: viewtopic.php?p=124959#p124959
Sony X900H + x800m2 https://www.avsforum.com/threads/offici ... t-61832553


videos showing the L1 issue on LG C2:
https://www.youtube.com/watch?v=TJtwu1bwlug

[sofakng]

This stuff is incredibly confusing...

If you can explain the test I can test using both an LG CX and LG C1.

Regardless ... does this mean the "chinoppo"/oppo are pretty much the best players?

[RESET_9999]

I dont know about the oppo but we're about to find out. please try quietvoid's rpu test file and compare the L1 reaction with your oppo and TVs internal player. If it's as different as my C2, you cant miss it.

mp4 version: https://drive.google.com/file/d/1HMU790 ... sp=sharing
ts version: https://drive.google.com/file/d/1hAv4eJ ... sp=sharing

[sofakng]

Oh, sorry... I don't have the oppo player yet. (I've order the chinoppo m9201 but it hasn't shipped)

[RESET_9999]

Oh, sorry... I don't have the oppo player yet. (I've order the chinoppo m9201 but it hasn't shipped)

if it's not just an issue related to the C2 only, I expect the same issue because I think the oppo and the x700 have the same SOC.

[sofakng]

ok - thanks ... I'll give it a test tomorrow on my CX and C1.

By the way, do you prefer the x800m2 instead of the oppo 203 (or clone) ?

[quietvoid]

The L1 brightness changes are totally different than the C2 internal plex and the Shield but L2 looks exactly the same on all the devices.

Do you have an example of this behaviour? Are the changes just subtle instead?

The only thing I noticed is that the C2 internal player clipped white brighter than external HDMI devices.

[RESET_9999]

By the way, do you prefer the x800m2 instead of the oppo 203 (or clone) ?

I never owned an oppo (or clone). But if I had to choose I would go for the x800m2 because of DT-DL TS support without any bug.
And I'm not a fan of BDMV folders or ISO storage (not practical) but that's just my opinion and if it turns out the oppo doesnt have the bug described in these videos, I will get one for sure.

The L1 brightness changes are totally different than the C2 internal plex and the Shield but L2 looks exactly the same on all the devices.

Do you have an example of this behaviour? Are the changes just subtle instead?

The only thing I noticed is that the C2 internal player clipped white brighter than external HDMI devices.

sure, here are videos showing exactly what I'm talking about. There's clearly something wrong.
I'm curious about your firestick...

LG C2 plex:
https://www.youtube.com/watch?v=HjK6JbcwsZg

Sony X800m2 (so dim that you almost can't see it for L1):
https://www.youtube.com/watch?v=2tsJhxHl2W8

Nvidia Shield:
https://www.youtube.com/watch?v=j64ZsY8yhfw

[sw5163]

Unfortunately, "hdr=none" cause the LPCM audio to play as stereo

That is so weird, but Apple is stupid so it's hard to tell.

[chros]

Oh, sorry... I don't have the oppo player yet. (I've order the chinoppo m9201 but it hasn't shipped)

if it's not just an issue related to the C2 only, I expect the same issue because I think the oppo and the x700 have the same SOC.

Good spot, yes, same with Oppo (set to TV-led) and G2 (different than internal Plex).
You also mentioned FEL, what about it? I guess you mean internal players, just checked the Spartacus-Gladiator mix FEL on the Oppo and it works fine.

[Mithrandir]

I never owned an oppo (or clone). But if I had to choose I would go for the x800m2 because of DT-DL TS support without any bug.
And I'm not a fan of BDMV folders or ISO storage (not practical) but that's just my opinion and if it turns out the oppo doesnt have the bug described in these videos, I will get one for sure.

You know they overcomplicated the spec when there is no single player which plays all DV profiles in all containers without bugs.

[ragico]

@RESET_9999
Tested the mp4 version:
On CX it works perfectly
On x700 L2 trim_offset does not work.

L1 works well in CX
Much less well in x700 (you can barely see the changes).
Same results in x800m2

[RESET_9999]

You also mentioned FEL, what about it? I guess you mean internal players, just checked the Spartacus-Gladiator mix FEL on the Oppo and it works fine.

Fel works but I meant I can't use my x800m2 anymore now that I know about this bug. L1 has a much bigger impact on the picture quality than FEL.
So for me, it will be the internal plex player of my C2 for everything. I thought maybe I can live with the red push so I gave a try to the Shield and checked the Dr. Sleep little girl scene and Oh boy, because the colors are a lot more saturated on the C2 than the C8, the red push is even more noticeable and it looked horrible.

[chros]

@RESET_9999
Tested the mp4 version:
On C1 it works perfectly
On x700 L2 trim_offset does not work.

Thanks for testing, but does the L1 works on Sony+C1?

You also mentioned FEL, what about it? I guess you mean internal players, just checked the Spartacus-Gladiator mix FEL on the Oppo and it works fine.

Fel works but I meant I can't use my x800m2 anymore now that I know about this bug. L1 has a much bigger impact on the picture quality than FEL.
So for me, it will be the internal plex player of my C2 for everything. I thought maybe I can live with the red push so I gave a try to the Shield and checked the Dr. Sleep little girl scene and Oh boy, because the colors are a lot more saturated on the C2 than the C8, the red push is even more noticeable and it looked horrible.

Hmm, I'm not happy either about L1. Do you know if it is used frequently on UHD BD discs?
And yes, Shiled is only usable with profile 5 mkv, nothing else.