Dolby Vision now possible through MP4 Mux.

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sofakng
Posts: 74
Joined: Fri Mar 19, 2010 12:51 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by sofakng » Mon Jul 25, 2022 5:51 pm

I don't want to change the subject, but can I ask a quick question?

Is it possible to convert a DV MEL UHD (dvhe.07.06) to DV 8.0 (or is it 8.1) without any loss of quality?

I'm trying to convert my rip of The Matrix (1999) which MediaInfo reports the following:

Code: Select all

Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU, Blu-ray compatible / SMPTE ST 2086, HDR10 compatible

dwalme
Posts: 28
Joined: Sat Dec 10, 2011 2:38 am

Re: Dolby Vision now possible through MP4 Mux.

Post by dwalme » Mon Jul 25, 2022 6:58 pm

sofakng wrote:
Mon Jul 25, 2022 5:51 pm
I don't want to change the subject, but can I ask a quick question?

Is it possible to convert a DV MEL UHD (dvhe.07.06) to DV 8.0 (or is it 8.1) without any loss of quality?

I'm trying to convert my rip of The Matrix (1999) which MediaInfo reports the following:

Code: Select all

Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU, Blu-ray compatible / SMPTE ST 2086, HDR10 compatible
Yes. Start with options 1 => 7 => 2 and then select the option that matches the type of audio processing you need.

RESET_9999
Posts: 2094
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Wed Jul 27, 2022 3:45 am

not sure if it's related but it seems the C2 internal player and Shield clip more with 1000nits DV content than the C8 internal player and x800m2. But with the 4000nits pattern and 1000nits HDR10, The C2 internal seems fine .

1000nits C2 DV vs HDR10 vs DV x800m2:
https://slow.pics/c/NUzspwhM
4000nits C2 DV vs C2 HDR10:
https://slow.pics/c/RG9UMJET
*don't judge the colors, I took those pictures with my phone. I didn't check the 4000nits pattern on my x800m2. I will tomorrow.

1000nits pattern:https://drive.google.com/file/d/1wYbmD8 ... sp=sharing
4000nits pattern:https://drive.google.com/file/d/1foRyXE ... sp=sharing

1000nits DV C8 (left) and C2(right) side by side:

Image



off topic...
did a couple of C8 vs C2 DV comparisons:

Spears and Munsil (10 000nits):https://drive.google.com/file/d/1JWtiLc ... sp=sharing
21 jump street (scene =500nits):https://drive.google.com/file/d/11QAedS ... sp=sharing
Doctor Strange (scene=1200nits):https://drive.google.com/file/d/1kWkKpM ... sp=sharing
Power rangers(scene =600nits):https://drive.google.com/file/d/1pM7rT5 ... sp=sharing
L1-L2 test:https://drive.google.com/file/d/1tSSr2W ... sp=sharing

deadchip12
Posts: 285
Joined: Thu May 02, 2019 2:49 am

Re: Dolby Vision now possible through MP4 Mux.

Post by deadchip12 » Wed Jul 27, 2022 4:10 am

RESET_9999 wrote:
Wed Jul 27, 2022 3:45 am
not sure if it's related but it seems the C2 internal player and Shield clip more with 1000nits DV content than the C8 internal player and x800m2. But with the 4000nits pattern and 1000nits HDR10, The C2 internal seems fine .

1000nits C2 DV vs HDR10 vs DV x800m2:
https://slow.pics/c/NUzspwhM
4000nits C2 DV vs C2 HDR10:
https://slow.pics/c/RG9UMJET
*don't judge the colors, I took those pictures with my phone. I didn't check the 4000nits pattern on my x800m2. I will tomorrow.

1000nits pattern:https://drive.google.com/file/d/1wYbmD8 ... sp=sharing
4000nits pattern:https://drive.google.com/file/d/1foRyXE ... sp=sharing

1000nits DV C8 (left) and C2(right) side by side:

Image



off topic...
did a couple of C8 vs C2 DV comparisons:

Spears and Munsil (10 000nits):https://drive.google.com/file/d/1JWtiLc ... sp=sharing
21 jump street (scene =500nits):https://drive.google.com/file/d/11QAedS ... sp=sharing
Doctor Strange (scene=1200nits):https://drive.google.com/file/d/1kWkKpM ... sp=sharing
Power rangers(scene =600nits):https://drive.google.com/file/d/1pM7rT5 ... sp=sharing
L1-L2 test:https://drive.google.com/file/d/1tSSr2W ... sp=sharing
So after all these testings is there a consensus on which player is the most accurate?

RESET_9999
Posts: 2094
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Wed Jul 27, 2022 4:14 am

deadchip12 wrote:
Wed Jul 27, 2022 4:10 am
So after all these testings is there a consensus on which player is the most accurate?
oh boy I don't know and with those comparisons, I'm now more uncertain than ever lol

sw5163
Posts: 146
Joined: Sat Jun 25, 2022 7:28 am

Re: Dolby Vision now possible through MP4 Mux.

Post by sw5163 » Wed Jul 27, 2022 11:00 am

sw5163 wrote:
Sun Jul 24, 2022 11:18 pm
RESET_9999 wrote:
Sun Jul 24, 2022 5:41 pm
Have you guys ever tested convert those p8 to p7 MEL?
Although it’s highly unlikely, but please give p7 MEL a test to rule out some possibility.

Amused
Posts: 29
Joined: Wed Jul 27, 2022 1:00 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Amused » Wed Jul 27, 2022 1:17 pm

Hey guys,

I am newbie here and this is my first post on this forum.

I have the Sony x700 and the Zidoo Z1000 Pro. My tv is the Sony 77A80J OLED.

I am trying to play a Dolby Vision FEL encoded MKV file through the Sony X700, but it shows only Black screen and freezes up.

I then tried to convert the DoVi FEL MKV file to M2TS file via tsmuxer because I read somewhere that the Sony X700 can read DoVi FEL M2TS files, and then I tried to play that file on the X700. However it doesn’t play - black screen again. It works only if turn off Dolby Vision on the X700, but in that case I only get HDR10.

Is there a way to convert that MKV file to M2TS or some other type of file and then play it on the Sony X700 while utilizing the full fat DoVi format?
UHD players: Sony X700, Zidoo Z1000 Pro
Audio system: Sony HT-A9
TV: Sony 77A80J

rophel
Posts: 9
Joined: Fri Dec 18, 2020 1:06 am

Re: Dolby Vision now possible through MP4 Mux.

Post by rophel » Thu Jul 28, 2022 3:02 am

Assuming players are all Nvidia Shield, is there any benefit to converting P7 to P8?

The Shield discards the EL and plays back with RPU data when playing P7, which is nice. Does DoviScripts P7 to P8 conversion bring anything from the EL into the BL or is it discarded during conversion?

RESET_9999
Posts: 2094
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Thu Jul 28, 2022 3:12 am

rophel wrote:
Thu Jul 28, 2022 3:02 am
Assuming players are all Nvidia Shield, is there any benefit to converting P7 to P8?
The Shield discards the EL and plays back with RPU data when playing P7, which is nice. Does DoviScripts P7 to P8 conversion bring anything from the EL into the BL or is it discarded during conversion?
EL is discarded and P8 playback is much more reliable on the Shield.
Amused wrote:
Wed Jul 27, 2022 1:17 pm
Is there a way to convert that MKV file to M2TS or some other type of file and then play it on the Sony X700 while utilizing the full fat DoVi format?
you can use the script in my signature.
mux BL.hevc, EL.hevc and audio.THD+ac3 in tsmuxer and enjoy FEL DV on the x700.

Image

Amused
Posts: 29
Joined: Wed Jul 27, 2022 1:00 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Amused » Thu Jul 28, 2022 7:05 am

RESET_9999 wrote:
Thu Jul 28, 2022 3:12 am
Amused wrote:
Wed Jul 27, 2022 1:17 pm
Is there a way to convert that MKV file to M2TS or some other type of file and then play it on the Sony X700 while utilizing the full fat DoVi format?
you can use the script in my signature.
mux BL.hevc, EL.hevc and audio.THD+ac3 in tsmuxer and enjoy FEL DV on the x700.

Image
Thank you, will do so!

The .gif you posted says that the workflow expects the first file to be video and the second to be audio (the Atmos track I assume). In my MKV file the second file is not the Atmos track. If that is the case, should I first recomposition the files within the MKV container and, if yes, which program should I use to do that?

Many thanks
UHD players: Sony X700, Zidoo Z1000 Pro
Audio system: Sony HT-A9
TV: Sony 77A80J

RESET_9999
Posts: 2094
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Thu Jul 28, 2022 2:52 pm

Amused wrote:
Thu Jul 28, 2022 7:05 am
The .gif you posted says that the workflow expects the first file to be video and the second to be audio (the Atmos track I assume). In my MKV file the second file is not the Atmos track. If that is the case, should I first recomposition the files within the MKV container and, if yes, which program should I use to do that?
Many thanks
Well, in that case, you could just select a workflow that doesnt convert the audio and convert the audio separately with eac3to.
https://www.videohelp.com/software/eac3to

The best workflow is to use the original BD in the first place instead of a P7 MKV.

FYI, audio conversion is only needed when TrueHD is in an MKV container.
So when your input has DTS-HD or if the input is an original BD, no audio conversion is required

ChuckDV
Posts: 2
Joined: Thu Jul 28, 2022 4:52 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by ChuckDV » Thu Jul 28, 2022 5:12 pm

Hello,
I've just ripped Westworld S01 UHDs and have several questions about it.
Judging by DV EL bitrate (120 kb/s) it looks like a P7 MEL release, but seems to be encoded as a P7 FEL (reported by MakeMKV and DoVi Scripts_1.4.7/dovitool). I'm not an expert in the DV metadata info and just demuxed the S01E01 track into BL+RPU+EL. RPU is 18mb and EL is 58mb. When converted to MKV and played back, the EL-only track seems to look like a standard MEL - just plain grey image for the whole duration of the file. I've uploaded EL and RPU https://www.dropbox.com/sh/154396onvqld ... mG1Ja?dl=0. Would appreciate it very much, if somebody more knowledgeable could take a look what's really going on in these DV layers and if it's safe to just convert it to P8 without loosing anything (for archival purposes). Thanks a lot!

Amused
Posts: 29
Joined: Wed Jul 27, 2022 1:00 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by Amused » Thu Jul 28, 2022 6:18 pm

RESET_9999 wrote:
Thu Jul 28, 2022 2:52 pm
Amused wrote:
Thu Jul 28, 2022 7:05 am
The .gif you posted says that the workflow expects the first file to be video and the second to be audio (the Atmos track I assume). In my MKV file the second file is not the Atmos track. If that is the case, should I first recomposition the files within the MKV container and, if yes, which program should I use to do that?
Many thanks
Well, in that case, you could just select a workflow that doesnt convert the audio and convert the audio separately with eac3to.
https://www.videohelp.com/software/eac3to

The best workflow is to use the original BD in the first place instead of a P7 MKV.
Which workflow do you recommend in that case?

I couldn’t find version 1.4.8 of your script on the link in you signature, where can it be downloaded?

Many thanks
UHD players: Sony X700, Zidoo Z1000 Pro
Audio system: Sony HT-A9
TV: Sony 77A80J

RESET_9999
Posts: 2094
Joined: Mon Aug 05, 2019 7:12 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by RESET_9999 » Thu Jul 28, 2022 8:34 pm

Amused wrote:
Thu Jul 28, 2022 6:18 pm
Which workflow do you recommend in that case?
I couldn’t find version 1.4.8 of your script on the link in you signature, where can it be downloaded?
Many thanks
in each mode, there's always one workflow that doesnt touch the audio at all.
1.4.7 is the right version. I'm always one version ahead.

Image

staknhalo
Posts: 161
Joined: Sun Oct 11, 2020 12:05 am

Re: Dolby Vision now possible through MP4 Mux.

Post by staknhalo » Thu Jul 28, 2022 10:48 pm

ChuckDV wrote:
Thu Jul 28, 2022 5:12 pm
Hello,
I've just ripped Westworld S01 UHDs and have several questions about it.
Judging by DV EL bitrate (120 kb/s) it looks like a P7 MEL release, but seems to be encoded as a P7 FEL (reported by MakeMKV and DoVi Scripts_1.4.7/dovitool). I'm not an expert in the DV metadata info and just demuxed the S01E01 track into BL+RPU+EL. RPU is 18mb and EL is 58mb. When converted to MKV and played back, the EL-only track seems to look like a standard MEL - just plain grey image for the whole duration of the file. I've uploaded EL and RPU https://www.dropbox.com/sh/154396onvqld ... mG1Ja?dl=0. Would appreciate it very much, if somebody more knowledgeable could take a look what's really going on in these DV layers and if it's safe to just convert it to P8 without loosing anything (for archival purposes). Thanks a lot!

Westworld is MEL

Extract only the EL HEVC stream off any p7 UHD and put it into an mkv container and play it, if it's all green on playback it's MEL, if it's grey/white and you see motion artifacts (usually reddish and greenish squares here and there) it's FEL, as you did.

All p7 is FEL technically IIRC, it's the UHD DV delivery profile/package, MEL is a sub type of FEL between 'real' FEL and MEL, so to speak

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