Dolby Vision now possible through MP4 Mux.

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Buzzie
Posts: 9
Joined: Tue Oct 20, 2020 8:01 am

Re: Dolby Vision now possible through MP4 Mux.

Post by Buzzie » Thu Oct 22, 2020 7:41 am

shawnc22 wrote:
Wed Oct 21, 2020 10:14 pm
Buzzie wrote:
Wed Oct 21, 2020 8:01 pm
lexyz wrote:
Wed Oct 21, 2020 2:49 pm

Check Plex player and Plex Server versions.
Does Plex Server detect DoVi data? Check file info in Plex server.
Thanks for the reply.
I checked the versions
Plex Player is latest version : 8.7.2.20952
Plex server is also latest version : 1.20.3.3437
After re-anilysing the file it showed the DoVi data. But playing the file was still in HDR :(
You need the latest 8.8 version of plex. If you weren’t on the beta, i think the public releases just came out today.
Thanks....gonna download that one tonight and see if it works.

EDIT: Update Plex app to 8.8 and worked indeed. Thanks!!
Last edited by Buzzie on Thu Oct 22, 2020 7:05 pm, edited 1 time in total.

Buzzie
Posts: 9
Joined: Tue Oct 20, 2020 8:01 am

Re: Dolby Vision now possible through MP4 Mux.

Post by Buzzie » Thu Oct 22, 2020 12:33 pm

I have another question.

Later i am gonna update my Plex to version 8.8 on my shield to see if the MKV files are gonna play in DV instead of HDR.

In the meantime i have another question

Has anybody here converted other movie files (TS of MP4) to MKV with Dolby Vision remaining as well as HD audio ?

I am trying for instance the following :
General
ID : 1 (0x1)
Complete name : V:\Movie\Movie.ts
Format : MPEG-TS
File size : 52.9 GiB
Duration : 1 h 38 min
Overall bit rate mode : Variable
Overall bit rate : 76.5 Mb/s
Maximum Overall bit rate : 35.5 Mb/s

Video
ID : 4117 (0x1015)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : Dolby Vision, Version 1.0, dvhe.06.06, BL+EL+RPU, HDR10 compatible / SMPTE ST 2086
Codec ID : 6
Duration : 1 h 38 min
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0001 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 906 cd/m2
Maximum Frame-Average Light Level : 824 cd/m2

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : DTS XLL X
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Muxing mode : Stream extension
Codec ID : 134
Duration : 1 h 38 min
Bit rate mode : Variable
Channel(s) : Object Based
Channel layout : Object Based
Delay relative to video : -500 ms
Language : English
But no matter what i try, ffmpeg, makemkv or mkvtoolnix i keep getting a non Dolby Vision file according to Mediainfo.

Any Ideas?

yusesope
Posts: 221
Joined: Sun Jul 28, 2019 3:34 am

Re: Dolby Vision now possible through MP4 Mux.

Post by yusesope » Thu Oct 22, 2020 1:42 pm

ragico wrote:
Mon Oct 19, 2020 9:58 pm
@Yusesope
I did other tests and got your MKV_Patcher to work finally.
........................
This file plays as HDR in firestick and as DV in Ugoos/shield.
Out of curiosity, what was the problem with the patcher?
It should also work on Fire Stick.
When you have time, try the files you find at the bottom of this post.
Let me know!

jlpsvk wrote:
Tue Oct 20, 2020 7:39 pm
i just realised....

when i mux hevc file from ys's tool with mkvtoolnix, makemkv recognizes this as dvhe.07.00, BL+RPU, but created mkv is dvhe.07.00, EL+RPU in mediainfo... this is known thing...

but when i ran THAT mkv through makemkv again, makemkv recognise the mkv correctly, as dvhe.07.06, BL+FEL+RPU, and outputted MKV is also correct... dvhe.07.06, BL+EL+RPU in mediainfo. so mkv_patcher is "not needed"... but requires more space and time.
If I were you, to be 100% sure, I'd pass the file to MakeMKV 15 more times ... you never know :lol: !
The main point is to save time and space ... that's what the patcher is for!
jlpsvk wrote:
Wed Oct 21, 2020 12:35 am
@yusesope
i was wondering more... :)

would it be possible to extract RPU metadata from the secondary HEVC stream on BD? that can be then used directly with x265 to encode directly to profile 5 or 8.1
I had already answered this question in the past (HERE).


blenky wrote:
Fri Oct 16, 2020 7:02 pm
@yusesope I followed your steps in the post above to the letter.
.........................................
However the resultant files play back in HDR10 on my Zidoo Z9X.
I have updated the POST of the 0.0.4 GAMMA version.
I think I have made some steps forward.
THESE samples were obtained with the latter version.
Do they trigger DV on your devices?
The files contain an ATMOS audio track that could create some incompatibility with those devices without decoder, e.g. LG TVs.

DaMacFunkin
Posts: 205
Joined: Tue Oct 30, 2018 4:17 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by DaMacFunkin » Thu Oct 22, 2020 3:35 pm

Buzzie wrote:
Thu Oct 22, 2020 12:33 pm
I have another question.

Later i am gonna update my Plex to version 8.8 on my shield to see if the MKV files are gonna play in DV instead of HDR.

In the meantime i have another question

Has anybody here converted other movie files (TS of MP4) to MKV with Dolby Vision remaining as well as HD audio ?

I am trying for instance the following :
General
ID : 1 (0x1)
Complete name : V:\Movie\Movie.ts
Format : MPEG-TS
File size : 52.9 GiB
Duration : 1 h 38 min
Overall bit rate mode : Variable
Overall bit rate : 76.5 Mb/s
Maximum Overall bit rate : 35.5 Mb/s

Video
ID : 4117 (0x1015)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : Dolby Vision, Version 1.0, dvhe.06.06, BL+EL+RPU, HDR10 compatible / SMPTE ST 2086
Codec ID : 6
Duration : 1 h 38 min
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0001 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 906 cd/m2
Maximum Frame-Average Light Level : 824 cd/m2

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : DTS XLL X
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Muxing mode : Stream extension
Codec ID : 134
Duration : 1 h 38 min
Bit rate mode : Variable
Channel(s) : Object Based
Channel layout : Object Based
Delay relative to video : -500 ms
Language : English
But no matter what i try, ffmpeg, makemkv or mkvtoolnix i keep getting a non Dolby Vision file according to Mediainfo.

Any Ideas?
Drop your TS file into Tsmuxer, select output as ISO and mux.
Re-rip new ISO with latest Makemkv.

badrobot
Posts: 21
Joined: Wed Mar 25, 2020 4:14 am

Re: Dolby Vision now possible through MP4 Mux.

Post by badrobot » Thu Oct 22, 2020 4:09 pm

HongyuS wrote:
Thu Oct 22, 2020 7:07 am
badrobot wrote:
Thu Oct 22, 2020 1:20 am
The iPhone 12 review from Verge says DoVi type 8.4

Could you plz upload the sample video file to mega.nz or google drive, I want to test it on shield tv 2019.
Thanks a lot for the info!
Looks like this profile is pretty new, not even specified in the Dolby Vision profiles/levels doc (which updated last year).

Here is a link of the original file:
https://drive.google.com/file/d/1JsFd_K ... sp=sharing

The video is not shot by me. I got it from another group on Bilibili (see "BV1rv411k7GL").
badrobot wrote:
Thu Oct 22, 2020 1:20 am
One more thing, are you Chinese? Mr Hong? I am from Mainland of China.
Yes, I'm also from mainland China.
Good News, this video sample can be recognized by Plex Media Server, and trigger Dolby Vision on Shield TV 2019.
截屏2020-10-22 下午11.56.00.png
截屏2020-10-22 下午11.56.00.png (197.58 KiB) Viewed 892 times
I am not a native English speaker.
Sorry for my bad English.

yusesope
Posts: 221
Joined: Sun Jul 28, 2019 3:34 am

Re: Dolby Vision now possible through MP4 Mux.

Post by yusesope » Thu Oct 22, 2020 4:59 pm

HongyuS wrote:
Thu Oct 22, 2020 7:07 am
Here is a link of the original file:
https://drive.google.com/file/d/1JsFd_K ... sp=sharing
I took a look at the iPhone 12 video: the RPUs are structurally identical to the ones my algorithm (-mode 2) produces when choosing UHD-BD -> profile 8.1 conversion.

It doesn't mean they're perfect but I'm happy with the insight I got :mrgreen: !

This could be important for two categories of devices:
  • for the new LG CX which, according to various forums around the world, seems to have abandoned (with the new firmware) support for Dual Track Dual Layer MP4 profile 7 files.
  • for ATV4K. I assume (I hope) that the Cupertino people will update the current ATV4Ks so that they can play the latest iPhone videos (although Apple is always full of surprises).

HongyuS wrote:
Thu Oct 22, 2020 7:07 am
badrobot wrote:
Thu Oct 22, 2020 4:09 pm
OT:
Do you guys use a VPN to be able to write here or upload files to Gdrive?

ragico
Posts: 168
Joined: Fri Feb 15, 2019 1:09 am

Re: Dolby Vision now possible through MP4 Mux.

Post by ragico » Thu Oct 22, 2020 5:10 pm

@Yusesope

Tried your latest samples and all play in DV in shield/Ugoos
The Fel_to_Mel and Fel_to_8.1 play DV in Firestick with audio disabled (firestick do not support Atmos).
Also tried Fel_to_8.1 in ATV 4k and plays in HDR but, a quick conversion to profile 5 and it plays in DV.

Yusesope I have tried to use yr latest tool, but I am not brave enough.
I need yr instructions with a pratical example, for instance:

python-3.7.6.amd64\python.exe src\app.py -mux -exp \path\to\your\original\file.m2ts
can I write down D:\000125.m2ts? Is this example correct?

And Then:

src\Gpac\gpac.exe -i pipe://video:ext=hevc:audelim=true -o stdout:ext=ts:pes_pack=none | src\FFmpeg\ffmpeg_win_x64.exe -hide_banner -y -i - -i \path\to\your\original\file.m2ts -map 0:0 -map 1:2 -c copy -bsf:v hevc_metadata=aud=insert -metadata title="Movie Title_________________________________________________________________________" \path\to\your\output\file.mkv

Same as above? And I need "" for Movie Title?
Last edited by ragico on Thu Oct 22, 2020 7:42 pm, edited 2 times in total.

codeXRes
Posts: 15
Joined: Mon Jan 20, 2020 1:10 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by codeXRes » Thu Oct 22, 2020 5:18 pm

DaMacFunkin wrote:
Thu Oct 22, 2020 3:35 pm
Buzzie wrote:
Thu Oct 22, 2020 12:33 pm
I have another question.

Later i am gonna update my Plex to version 8.8 on my shield to see if the MKV files are gonna play in DV instead of HDR.

In the meantime i have another question

Has anybody here converted other movie files (TS of MP4) to MKV with Dolby Vision remaining as well as HD audio ?

I am trying for instance the following :
General
ID : 1 (0x1)
Complete name : V:\Movie\Movie.ts
Format : MPEG-TS
File size : 52.9 GiB
Duration : 1 h 38 min
Overall bit rate mode : Variable
Overall bit rate : 76.5 Mb/s
Maximum Overall bit rate : 35.5 Mb/s

Video
ID : 4117 (0x1015)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : Dolby Vision, Version 1.0, dvhe.06.06, BL+EL+RPU, HDR10 compatible / SMPTE ST 2086
Codec ID : 6
Duration : 1 h 38 min
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0001 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 906 cd/m2
Maximum Frame-Average Light Level : 824 cd/m2

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : DTS XLL X
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Muxing mode : Stream extension
Codec ID : 134
Duration : 1 h 38 min
Bit rate mode : Variable
Channel(s) : Object Based
Channel layout : Object Based
Delay relative to video : -500 ms
Language : English
But no matter what i try, ffmpeg, makemkv or mkvtoolnix i keep getting a non Dolby Vision file according to Mediainfo.

Any Ideas?
Drop your TS file into Tsmuxer, select output as ISO and mux.
Re-rip new ISO with latest Makemkv.
Just to add to this, the output mkv file you get might be detected as dvhe.07.00, BL+RPU by Mediainfo. If that happens, open the mkv file in MakeMKV and just create a new file without any settings changes. The resulting mkv will be properly recognised as dvhe.07.06, BL+EL+RPU. I have no idea why this is happening though. Good luck.

yusesope
Posts: 221
Joined: Sun Jul 28, 2019 3:34 am

Re: Dolby Vision now possible through MP4 Mux.

Post by yusesope » Thu Oct 22, 2020 5:31 pm

ragico wrote:
Thu Oct 22, 2020 5:10 pm
python-3.7.6.amd64\python.exe src\app.py -mux -exp \path\to\your\original\file.m2ts
can I write down D:\000125.m2ts? Is this example correct?
If the file is located in D:\000125.m2ts then you must write D:\000125.m2ts instead of \path\to\your\original\file.m2ts.
Are you sure the correct address is not D:\BDMV\STREAM\000125.m2ts?
A little trick: while copying the command line, stop at -exp, leave a space, and then drag and drop the m2ts file into the Command Prompt window you are using. Windows will automatically fill in the correct address of your file.
ragico wrote:
Thu Oct 22, 2020 5:10 pm
And Then:
src\Gpac\gpac.exe -i pipe://video:ext=hevc:audelim=true -o stdout:ext=ts:pes_pack=none | src\FFmpeg\ffmpeg_win_x64.exe -hide_banner -y -i - -i \path\to\your\original\file.m2ts -map 0:0 -map 1:2 -c copy -bsf:v hevc_metadata=aud=insert -metadata title="Movie Title_________________________________________________________________________" \path\to\your\output\file.mkv
Same as above? And I need "" for Movie Title?
The same applies to all "\path\to\your\......" strings marked in blue (the above trick works the same way).
And yes, you need the quotes ("") when setting the title metadata

Buzzie
Posts: 9
Joined: Tue Oct 20, 2020 8:01 am

Re: Dolby Vision now possible through MP4 Mux.

Post by Buzzie » Thu Oct 22, 2020 6:39 pm

DaMacFunkin wrote:
Thu Oct 22, 2020 3:35 pm
Buzzie wrote:
Thu Oct 22, 2020 12:33 pm
I have another question.

Later i am gonna update my Plex to version 8.8 on my shield to see if the MKV files are gonna play in DV instead of HDR.

In the meantime i have another question

Has anybody here converted other movie files (TS of MP4) to MKV with Dolby Vision remaining as well as HD audio ?

I am trying for instance the following :
General
ID : 1 (0x1)
Complete name : V:\Movie\Movie.ts
Format : MPEG-TS
File size : 52.9 GiB
Duration : 1 h 38 min
Overall bit rate mode : Variable
Overall bit rate : 76.5 Mb/s
Maximum Overall bit rate : 35.5 Mb/s

Video
ID : 4117 (0x1015)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
HDR format : Dolby Vision, Version 1.0, dvhe.06.06, BL+EL+RPU, HDR10 compatible / SMPTE ST 2086
Codec ID : 6
Duration : 1 h 38 min
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0001 cd/m2, max: 1000 cd/m2
Maximum Content Light Level : 906 cd/m2
Maximum Frame-Average Light Level : 824 cd/m2

Audio
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : DTS XLL X
Format/Info : Digital Theater Systems
Commercial name : DTS-HD Master Audio
Muxing mode : Stream extension
Codec ID : 134
Duration : 1 h 38 min
Bit rate mode : Variable
Channel(s) : Object Based
Channel layout : Object Based
Delay relative to video : -500 ms
Language : English
But no matter what i try, ffmpeg, makemkv or mkvtoolnix i keep getting a non Dolby Vision file according to Mediainfo.

Any Ideas?
Drop your TS file into Tsmuxer, select output as ISO and mux.
Re-rip new ISO with latest Makemkv.
Thanks !! Muxing to ISO now and rerip after.
codeXRes wrote:
Thu Oct 22, 2020 5:18 pm
DaMacFunkin wrote:
Thu Oct 22, 2020 3:35 pm
Buzzie wrote:
Thu Oct 22, 2020 12:33 pm
skip
Drop your TS file into Tsmuxer, select output as ISO and mux.
Re-rip new ISO with latest Makemkv.
Just to add to this, the output mkv file you get might be detected as dvhe.07.00, BL+RPU by Mediainfo. If that happens, open the mkv file in MakeMKV and just create a new file without any settings changes. The resulting mkv will be properly recognised as dvhe.07.06, BL+EL+RPU. I have no idea why this is happening though. Good luck.
Thanks for the heads up !!
dont know the difference but i will look at the files.
Thanks

ragico
Posts: 168
Joined: Fri Feb 15, 2019 1:09 am

Re: Dolby Vision now possible through MP4 Mux.

Post by ragico » Thu Oct 22, 2020 10:55 pm

yusesope wrote:
Thu Oct 22, 2020 5:31 pm
ragico wrote:
Thu Oct 22, 2020 5:10 pm
python-3.7.6.amd64\python.exe src\app.py -mux -exp \path\to\your\original\file.m2ts
can I write down D:\000125.m2ts? Is this example correct?
If the file is located in D:\000125.m2ts then you must write D:\000125.m2ts instead of \path\to\your\original\file.m2ts.
Are you sure the correct address is not D:\BDMV\STREAM\000125.m2ts?
A little trick: while copying the command line, stop at -exp, leave a space, and then drag and drop the m2ts file into the Command Prompt window you are using. Windows will automatically fill in the correct address of your file.
ragico wrote:
Thu Oct 22, 2020 5:10 pm
And Then:
src\Gpac\gpac.exe -i pipe://video:ext=hevc:audelim=true -o stdout:ext=ts:pes_pack=none | src\FFmpeg\ffmpeg_win_x64.exe -hide_banner -y -i - -i \path\to\your\original\file.m2ts -map 0:0 -map 1:2 -c copy -bsf:v hevc_metadata=aud=insert -metadata title="Movie Title_________________________________________________________________________" \path\to\your\output\file.mkv
Same as above? And I need "" for Movie Title?
The same applies to all "\path\to\your\......" strings marked in blue (the above trick works the same way).
And yes, you need the quotes ("") when setting the title metadata
These are the commands that I applied.
1) python-3.7.6.amd64\python.exe src\app.py -mode 2 -mux -exp I:\BDMV\STREAM\00018.m2ts

2) src\Gpac\gpac.exe -i pipe://video:ext=hevc:audelim=true -o stdout:ext=ts:pes_pack=none | src\FFmpeg\ffmpeg_win_x64.exe -hide_banner -y -i - -i I:\BDMV\STREAM\00018.m2ts -map 0:0 -map 1:2 -c copy -bsf:v hevc_metadata=aud=insert -metadata title=
"Transformers_____________________________________"
D:\Transformers.mkv

And this is what I get:
test2.jpg
test2.jpg (70.34 KiB) Viewed 773 times
Where is my fault?

HongyuS
Posts: 8
Joined: Sat Sep 05, 2020 6:27 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HongyuS » Thu Oct 22, 2020 11:55 pm

yusesope wrote:
Thu Oct 22, 2020 4:59 pm
I took a look at the iPhone 12 video: the RPUs are structurally identical to the ones my algorithm (-mode 2) produces when choosing UHD-BD -> profile 8.1 conversion.

It doesn't mean they're perfect but I'm happy with the insight I got :mrgreen: !
I just tried -mode 2 on my iPad Pro (latest iOS 14 Beta), contrast ratio looks wrong. But can confirm it was a bug of Apple, cuz profile 8.1 sample from MBox have the same issue. (Due to copyright limitations, I cannot share the samples with anyone, but you can download them from MysteryBox's website)

However, sample made by yusesope's "-mode 2" triggers crash on macOS Big Sur, while encoding sample from MBox does not. So there are still room for improvements.
yusesope wrote:
Thu Oct 22, 2020 4:59 pm
OT:
Do you guys use a VPN to be able to write here or upload files to Gdrive?
Yes. VPN is essential to access "real" internet in China :D

HongyuS
Posts: 8
Joined: Sat Sep 05, 2020 6:27 pm

Re: Dolby Vision now possible through MP4 Mux.

Post by HongyuS » Fri Oct 23, 2020 2:14 am

yusesope wrote:
Thu Oct 22, 2020 4:59 pm
I took a look at the iPhone 12 video: the RPUs are structurally identical to the ones my algorithm (-mode 2) produces when choosing UHD-BD -> profile 8.1 conversion.

It doesn't mean they're perfect but I'm happy with the insight I got :mrgreen: !
I’m also wondering that - is it possible to extract the RPU data which can be used by the x265 encoder?

Since all streaming services are using profile 5, it would be much more convenient if we can re-encode the video to profile 5. Looks like profile 5 have the best cross-platform capability by now.

dapope
Posts: 3
Joined: Fri Oct 09, 2020 4:54 am

Re: Dolby Vision now possible through MP4 Mux.

Post by dapope » Fri Oct 23, 2020 2:35 am

EDIT: Seems to be some sort of glitch with Tsmuxer. Using Tsmuxer to remux the file as .m2ts and not .ts works and is recognised by the LG.

-

I'm having an audio problem in my quest for Dolby Vision on my LG CX internal player. I use headphones so I've been converting the DTS-HD MA track to a stereo WAV. Put simply I demux using Tsmuxer, merge HEVC files using 8.1.bat, convert the audio using eac3to and then remux using Tsmuxer. I have the Back to the Future 4K set. The first movie worked fine using this process. However movies 2 and 3 fail to recognise the LPCM audio track. Mediainfo displays that the track is there and all the attributes are identical to the first movie which works perfectly. I really have no idea what could be going wrong or how to fix it!
Last edited by dapope on Sat Oct 24, 2020 1:45 am, edited 1 time in total.

badrobot
Posts: 21
Joined: Wed Mar 25, 2020 4:14 am

Re: Dolby Vision now possible through MP4 Mux.

Post by badrobot » Fri Oct 23, 2020 2:52 am

HongyuS wrote:
Thu Oct 22, 2020 11:55 pm
yusesope wrote:
Thu Oct 22, 2020 4:59 pm
I took a look at the iPhone 12 video: the RPUs are structurally identical to the ones my algorithm (-mode 2) produces when choosing UHD-BD -> profile 8.1 conversion.

It doesn't mean they're perfect but I'm happy with the insight I got :mrgreen: !
I just tried -mode 2 on my iPad Pro (latest iOS 14 Beta), contrast ratio looks wrong. But can confirm it was a bug of Apple, cuz profile 8.1 sample from MBox have the same issue. (Due to copyright limitations, I cannot share the samples with anyone, but you can download them from MysteryBox's website)

However, sample made by yusesope's "-mode 2" triggers crash on macOS Big Sur, while encoding sample from MBox does not. So there are still room for improvements.
yusesope wrote:
Thu Oct 22, 2020 4:59 pm
OT:
Do you guys use a VPN to be able to write here or upload files to Gdrive?
Yes. VPN is essential to access "real" internet in China :D
I have tried MBOX demo video files on my iPad Pro, it seems that P5 can be identified as DoVi by infuse 6, but P8.1 can not.
Result:P5 play as DoVi, P8.1 play as HDR, I have uploaded these screenshots.

https://screenshotcomparison.com/comparison/7316
I am not a native English speaker.
Sorry for my bad English.

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