Dolby Vision now possible through MP4 Mux.

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deadchip12
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Re: Dolby Vision now possible through MP4 Mux.

#10096 Post by deadchip12 » Tue Jun 25, 2024 5:55 am

RESET_9999 wrote:
Tue Jun 25, 2024 12:49 am
You can't skip it, this workflow was designed to always fix incorrect L5.
Just edit it to 0,0,0,0
Besides missing L5, when and how do we know L5 is incorrect and needs to be fixed?

RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

#10097 Post by RESET_9999 » Tue Jun 25, 2024 10:51 am

you measure the black bars. See the P8 hybrid tutorial
Sorry for my English.
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deadchip12
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Re: Dolby Vision now possible through MP4 Mux.

#10098 Post by deadchip12 » Tue Jun 25, 2024 11:46 am

I just downloaded two web releases of John Wick 4 in order to test the rpu transfer and both are cmv2.9. Sigh. This takes too much time.

RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

#10099 Post by RESET_9999 » Tue Jun 25, 2024 12:04 pm

just check the RPU L1 plot on my googledrive link
Sorry for my English.
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deadchip12
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Re: Dolby Vision now possible through MP4 Mux.

#10100 Post by deadchip12 » Tue Jun 25, 2024 12:20 pm

RESET_9999 wrote:
Tue Jun 25, 2024 12:04 pm
just check the RPU L1 plot on my googledrive link
Ah ok. It's confirmed to be cmv2.9. No point doing the transfer then. Will try a different movie that is not on your spreadsheet.

Btw, I'm measuring the black bars for Dune 2 to see if I need to edit L5. Checking the bluray version and the top and bottom are both 276. For the stream version, there's no black bar (L5 missing). So I thought I would need to put in 276 for top and bottom when editing L5 in workflow 1-1. However, when I drag RPU_CMV4.0_L3L8L9_transfered.bin into workflow 1-1, the top and bottom are already 276 there. So does it mean I won't need to edit L5? Why is that?
Last edited by deadchip12 on Tue Jun 25, 2024 12:25 pm, edited 1 time in total.

RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

#10101 Post by RESET_9999 » Tue Jun 25, 2024 12:25 pm

the L5 on the P5/P8 web-dl has nothing to do with the one on the bluray P7 rpu when you transfer cmv4.0 and L5 is almost always correct on bluray. It's just Apple and MA that are stupid.
Sorry for my English.
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deadchip12
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Re: Dolby Vision now possible through MP4 Mux.

#10102 Post by deadchip12 » Tue Jun 25, 2024 12:27 pm

RESET_9999 wrote:
Tue Jun 25, 2024 12:25 pm
the L5 on the P5/P8 web-dl has nothing to do with the one on the bluray P7 rpu when you transfer cmv4.0
Hmm ok. So for all the cmv4.0 transfers just type in 0,0,0,0 (i.e. pressing enter)?

RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

#10103 Post by RESET_9999 » Tue Jun 25, 2024 12:36 pm

No, and the script will force you to edit L5 only when its missing.... Watch the P8 hybrid tuto, I show how to measure the black bars of the BL and edit L5 when necessary
Sorry for my English.
G5 / AM6B+ / Denon 7.2.4
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deadchip12
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Re: Dolby Vision now possible through MP4 Mux.

#10104 Post by deadchip12 » Tue Jun 25, 2024 1:07 pm

RESET_9999 wrote:
Tue Jun 25, 2024 12:36 pm
No, and the script will force you to edit L5 only when its missing.... Watch the P8 hybrid tuto, I show how to measure the black bars of the BL and edit L5 when necessary
I watched that tutorial. Below is my 1-1 workflow. I measured the black bars of the BL beforehand and they were 276 for top and bottom, which match what I'm seeing here. So I can skip editing the L5?
Image

RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

#10105 Post by RESET_9999 » Tue Jun 25, 2024 1:26 pm

yes, when it's already the right values, you skip. As I said, L5 is rarely incorrect on Bluray.
Sorry for my English.
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deadchip12
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Re: Dolby Vision now possible through MP4 Mux.

#10106 Post by deadchip12 » Tue Jun 25, 2024 1:40 pm

RESET_9999 wrote:
Tue Jun 25, 2024 1:26 pm
yes, when it's already the right values, you skip. As I said, L5 is rarely incorrect on Bluray.
I just checked Blue Beetle in aviSynth and it crops at 277 for top and 277 for bottom, while it reports 276 for top and 277 for bottom in dovi scripts. I guess we have to edit L5 for this one...
What happens if I don't edit L5? Like if I don't do any of this stuff and just watch the original bluray with the wrong L5, will I notice something wrong with the picture?

RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

#10107 Post by RESET_9999 » Tue Jun 25, 2024 2:21 pm

L5 tells the TV the part of the image(active area) to display/tonemap but all the hdmi devices ignore L5 so it doesn't matter to them. Only your TV internal player uses it.
there are L5 test files on my GD, try them and see what it does: https://drive.google.com/drive/u/1/fold ... fx6vRYDEfs

so with 0-0-277-277 L5 with a 16/9 video, the TV will display/tonemap: 3840x1606 pixels (it will exclude 554pixels row top/bottom)
276/277 will be 3840x1607 pixels meaning 1 row of pixels that are black bars will get tone mapping. A 1 pixel row is not enough to cause any visible defect though.
Sorry for my English.
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deadchip12
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Re: Dolby Vision now possible through MP4 Mux.

#10108 Post by deadchip12 » Tue Jun 25, 2024 2:57 pm

RESET_9999 wrote:
Tue Jun 25, 2024 2:21 pm
but all the hdmi devices ignore L5 so it doesn't matter to them. Only your TV internal player uses it.
Huh? So if I'm using the Ugoos AM6B+ it won't matter if L5 is correct or not, or am I misunderstanding sth here?

RESET_9999
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Re: Dolby Vision now possible through MP4 Mux.

#10109 Post by RESET_9999 » Tue Jun 25, 2024 3:08 pm

yes, L5 doesnt matter for all the devices except:
1- TV internal player
2- Windows Energy Player
Sorry for my English.
G5 / AM6B+ / Denon 7.2.4
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deadchip12
Posts: 379
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Re: Dolby Vision now possible through MP4 Mux.

#10110 Post by deadchip12 » Tue Jun 25, 2024 3:24 pm

RESET_9999 wrote:
Tue Jun 25, 2024 3:08 pm
yes, L5 doesnt matter for all the devices except:
1- TV internal player
2- Windows Energy Player
Ok nice. I can save time by skipping editing L5 then.

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