Dolby Vision now possible through MP4 Mux.
Re: Dolby Vision now possible through MP4 Mux.
hopefully Zidoo will get the firmware sorted with their new range of mediaplayers
ive got the Z9X and its a noticeable upgrade video wise on the older z9S
firmwares not quite there with mkv DV
but hdr10+ seems to be working fine,and theyve always been solid re Atmos etc
ie Alita full rip makemkv .53 to mkv file
HDR 10+ and full atmos works fine looks lovely
same file trying DV atm looks lovely but loses synch after 5 mins and audios out by 2 secs ...VERY early on in the firmware thou
Forced DV lldl works pretty well too
something really old like Space1999 epis from 1975ish come out looking much improved vs normal when using forced DV...ie grey starry backgrounds become inky black
Metals look like metals,and faded clothing gains lots of colours back ..... just as an example
ive got the Z9X and its a noticeable upgrade video wise on the older z9S
firmwares not quite there with mkv DV
but hdr10+ seems to be working fine,and theyve always been solid re Atmos etc
ie Alita full rip makemkv .53 to mkv file
HDR 10+ and full atmos works fine looks lovely
same file trying DV atm looks lovely but loses synch after 5 mins and audios out by 2 secs ...VERY early on in the firmware thou
Forced DV lldl works pretty well too
something really old like Space1999 epis from 1975ish come out looking much improved vs normal when using forced DV...ie grey starry backgrounds become inky black
Metals look like metals,and faded clothing gains lots of colours back ..... just as an example
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Re: Dolby Vision now possible through MP4 Mux.
It can’t play DV from MKV full stop, that is why these files are mp4.badrobot wrote: ↑Thu Oct 29, 2020 7:27 amLG internal player CAN NOT play any DV mkv with dolby truehd atmos sound track, right ?DaMacFunkin wrote: ↑Thu Oct 29, 2020 6:46 amHi, I think that is what Yuescope was thinking might happen, it seems direct play of Profile 7 on the CX might have been crippled.
There has been a North America firmware this week for the C9, it will be interesting to see if that can still play profile 7, it isn’t available in Europe yet so I can’t test it.
I am going to buy a CX model LG TV. Is there any way to handle DV mkv with dolby truehd atmos on CX model?
Only way is to get an external player.
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Re: Dolby Vision now possible through MP4 Mux.
I think even the Zidoo will need profile 8 for FEL titles, I just don’t see Dolby allowing a loophole that enables profile 7 FEL to be converted to single track dual layer AND play back correctly.cuculain wrote: ↑Thu Oct 29, 2020 7:36 amhopefully Zidoo will get the firmware sorted with their new range of mediaplayers
ive got the Z9X and its a noticeable upgrade video wise on the older z9S
firmwares not quite there with mkv DV
but hdr10+ seems to be working fine,and theyve always been solid re Atmos etc
ie Alita full rip makemkv .53 to mkv file
HDR 10+ and full atmos works fine looks lovely
same file trying DV atm looks lovely but loses synch after 5 mins and audios out by 2 secs ...VERY early on in the firmware thou
Forced DV lldl works pretty well too
something really old like Space1999 epis from 1975ish come out looking much improved vs normal when using forced DV...ie grey starry backgrounds become inky black
Metals look like metals,and faded clothing gains lots of colours back ..... just as an example
Re: Dolby Vision now possible through MP4 Mux.
@DaMacFunkinIt can’t play DV from MKV full stop, that is why these files are mp4.
Only way is to get an external player.
External player means APP like Plex?
Is Plex on LG CX model capable of playing DV mkv with Dolby truehd atmos ? thanks
I am not a native English speaker.
Sorry for my bad English.
Sorry for my bad English.
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Re: Dolby Vision now possible through MP4 Mux.
No, external player means external hardware.
Internal Plex app will only transport what the internal decoder determines valid, everything else will transcode or not play, including True-HD.
Re: Dolby Vision now possible through MP4 Mux.
For my LG OLED C6 65"yusesope wrote: ↑Wed Oct 28, 2020 7:36 pmAs promised, here are some test files for you to try on LG devices.
GAMMA should now be able to return MP4 files as well (in addition to MKV ones).
I say "should" because today was a looooooooooooooooong day and I'm really tired (so forgive any mistakes).
Find the test files HERE.
They were all obtained from an initial m2ts FEL profile 7 file (only video, no audio).
The main reason why GAMMA has to return MP4 files is related to the "whispers" circulating these days that see the LG OLED 2020 TVs unable to play DTDL MP4 files.
Owners of these TVs should make sure the "FEL_to_Profile81.mp4" file is played.
@quietvoid pointed out to me that LG OLED TVs <= 2019 can still play DTDL files: having a faster method to generate this type of file would therefore be advantageous.
I modified GAMMA to get this type of file.
So, from a FEL m2ts file (profile 7) you can get the following MP4:
- DTDL_FEL.mp4
- DTDL_FEL_to_MEL.mp4
- STDL_FEL.mp4
- STDL_FEL_to_MEL.mp4
- FEL_to_Profile81.mp4
Try the files and let me know!
**
DTDL = Dual Track Dual Layer
STDL = Single Track Dual Layer
Out of all the test files it played only the
Code: Select all
FEL_to_Profile81.mp4.
Re: Dolby Vision now possible through MP4 Mux.
Thanks, on my CX, as others have already stated, the only file that would play was ‘FEL_to_Profile81.mp4’. All the others came up with ‘video unsupported’ error message. The 8.1 file triggered Dolby vision though, so that’s good right?yusesope wrote: ↑Wed Oct 28, 2020 7:36 pmAs promised, here are some test files for you to try on LG devices.
GAMMA should now be able to return MP4 files as well (in addition to MKV ones).
I say "should" because today was a looooooooooooooooong day and I'm really tired (so forgive any mistakes).
Find the test files HERE.
They were all obtained from an initial m2ts FEL profile 7 file (only video, no audio).
The main reason why GAMMA has to return MP4 files is related to the "whispers" circulating these days that see the LG OLED 2020 TVs unable to play DTDL MP4 files.
Owners of these TVs should make sure the "FEL_to_Profile81.mp4" file is played.
@quietvoid pointed out to me that LG OLED TVs <= 2019 can still play DTDL files: having a faster method to generate this type of file would therefore be advantageous.
I modified GAMMA to get this type of file.
So, from a FEL m2ts file (profile 7) you can get the following MP4:
- DTDL_FEL.mp4
- DTDL_FEL_to_MEL.mp4
- STDL_FEL.mp4
- STDL_FEL_to_MEL.mp4
- FEL_to_Profile81.mp4
Try the files and let me know!
**
DTDL = Dual Track Dual Layer
STDL = Single Track Dual Layer
On a side note: I find it interesting that while the video player will refuse to play any of the other files, it has no trouble creating the thumbnails for them. Just makes me think something else is stopping it even trying to play them - I.e the firmware update

Re: Dolby Vision now possible through MP4 Mux.
The new exoplayer that we mention here, that can play dolby vision mkv files, is there a way to zoom/remove black bars in it?
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Re: Dolby Vision now possible through MP4 Mux.
Thanks for this tip - nothing I created with the more recent mp4muxer worked on my LG C7, but switching to this older version allowed me to create both profile 4 and profile 7 DTDL MP4s that worked both directly, over DLNA and over a Mac mini Plex server, which is ultimately what I'm looking for (I don't have a setup that supports TrueHD anyway).quietvoid wrote: ↑Wed Oct 28, 2020 11:13 pmBoth DTDL files do not playback on the C8 internal player, the STDL ones trigger Dolby Vision but stutter.
Are you using the latest mp4muxer code from Github? It causes these issues on the C8 at least, while the first version posted in 2018 works perfectly. From this tree: https://github.com/DolbyLaboratories/dl ... 0d7ca4eabd
BTW, this is the only post I've seen mention the CX thing: https://www.makemkv.com/forum/viewtopic ... 477#p98477
So FWIW, still don't know how true it is.
Now I just have to hope that a firmware update doesn't hose support for profile 4 or 7!
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Re: Dolby Vision now possible through MP4 Mux.
On my UK LGC9 (Last firmware June) none of the DTDL play.PlatypusW wrote: ↑Thu Oct 29, 2020 11:32 amThanks, on my CX, as others have already stated, the only file that would play was ‘FEL_to_Profile81.mp4’. All the others came up with ‘video unsupported’ error message. The 8.1 file triggered Dolby vision though, so that’s good right?yusesope wrote: ↑Wed Oct 28, 2020 7:36 pmAs promised, here are some test files for you to try on LG devices.
GAMMA should now be able to return MP4 files as well (in addition to MKV ones).
I say "should" because today was a looooooooooooooooong day and I'm really tired (so forgive any mistakes).
Find the test files HERE.
They were all obtained from an initial m2ts FEL profile 7 file (only video, no audio).
The main reason why GAMMA has to return MP4 files is related to the "whispers" circulating these days that see the LG OLED 2020 TVs unable to play DTDL MP4 files.
Owners of these TVs should make sure the "FEL_to_Profile81.mp4" file is played.
@quietvoid pointed out to me that LG OLED TVs <= 2019 can still play DTDL files: having a faster method to generate this type of file would therefore be advantageous.
I modified GAMMA to get this type of file.
So, from a FEL m2ts file (profile 7) you can get the following MP4:
- DTDL_FEL.mp4
- DTDL_FEL_to_MEL.mp4
- STDL_FEL.mp4
- STDL_FEL_to_MEL.mp4
- FEL_to_Profile81.mp4
Try the files and let me know!
**
DTDL = Dual Track Dual Layer
STDL = Single Track Dual Layer
On a side note: I find it interesting that while the video player will refuse to play any of the other files, it has no trouble creating the thumbnails for them. Just makes me think something else is stopping it even trying to play them - I.e the firmware update![]()
STDL play and trigger DV but very jerky as though is is plating some bytes from one layer then some bytes from the other.
8.1 plays and triggers DV fine.
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Re: Dolby Vision now possible through MP4 Mux.
So I finally tried these sample files, none trigger DoVi on Zidoo Z9X only HDR10.yusesope wrote: ↑Thu Oct 22, 2020 1:42 pmI 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.
On the Shield 2019 pro with Latest Plex Beta and Latest Plex Beta server all 3 - FEL, FEL to MEL and FEL to Profile 8.1 all trigger Dolby Vision... err wow...
Just for fun I tried them on Oppo 203, all 3 play in HDR10 only.
Re: Dolby Vision now possible through MP4 Mux.
Hi-Res wrote: ↑Thu Oct 29, 2020 11:01 amFor my LG OLED C6 65"
Out of all the test files it played only theWhich only triggered HDR+10 not Dolby Vision.Code: Select all
FEL_to_Profile81.mp4.
Ok. Your tests show that LG TVs (and Panasonic z1000) are still able to read a DV STDL profile 8.1 file (except for the LG C6...although the feedback seems strange to me since the file does not contain an HDR10+ track).DaMacFunkin wrote: ↑Thu Oct 29, 2020 3:31 pmOn my UK LGC9 (Last firmware June)
.....................
8.1 plays and triggers DV fine.
This is good news ...
The second good news is that these files were obtained without using Dolby's mp4muxer. The creation process is therefore much faster.
DaMacFunkin wrote: ↑Thu Oct 29, 2020 3:31 pmOn my UK LGC9 (Last firmware June) none of the DTDL play.
STDL play and trigger DV but very jerky as though is is plating some bytes from one layer then some bytes from the other.
I wish I could also create working DTDL files.
I have generated four other FEL DTDL variants.
Each of them has small changes and the degree of complexity increases from file n1 to file n4.
These files can only be played using the INTERNAL PLAYER of LG TVs (via DLNA, USB).
If you want to try, you can find them HERE.
In your feedback please specify the TV model and the file that worked (if any of these will ever work

Are you referring to MKV files?DaMacFunkin wrote: ↑Thu Oct 29, 2020 4:37 pmSo I finally tried these sample files, none trigger DoVi on Zidoo Z9X only HDR10.
On the Shield 2019 pro with Latest Plex Beta and Latest Plex Beta server all 3 - FEL, FEL to MEL and FEL to Profile 8.1 all trigger Dolby Vision... err wow...
Just for fun I tried them on Oppo 203, all 3 play in HDR10 only.
Nope!
Re: Dolby Vision now possible through MP4 Mux.
Thanks, result below.yusesope wrote: ↑Thu Oct 29, 2020 5:24 pm
I wish I could also create working DTDL files.
I have generated four other FEL DTDL variants.
Each of them has small changes and the degree of complexity increases from file n1 to file n4.
These files can only be played using the INTERNAL PLAYER of LG TVs (via DLNA, USB).
If you want to try, you can find them HERE.
In your feedback please specify the TV model and the file that worked (if any of these will ever work).
CX48 - Played via USB using the internal player:
DTDL_FEL_1: "This file cannot be recognised. Do you want to play the next file?"
DTDL_FEL_2: "This file cannot be recognised. Do you want to play the next file?"
DTDL_FEL_3: "This file cannot be recognised. Do you want to play the next file?"
DTDL_FEL_4: "This file cannot be recognised. Do you want to play the next file?"
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Re: Dolby Vision now possible through MP4 Mux.
On this particular post I am referring to MKV samples as discussed and linked to in the quoted text.DaMacFunkin wrote: ↑Thu Oct 29, 2020 4:37 pmSo I finally tried these sample files, none trigger DoVi on Zidoo Z9X only HDR10.yusesope wrote: ↑Thu Oct 22, 2020 1:42 pmI 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.
On the Shield 2019 pro with Latest Plex Beta and Latest Plex Beta server all 3 - FEL, FEL to MEL and FEL to Profile 8.1 all trigger Dolby Vision... err wow...
Just for fun I tried them on Oppo 203, all 3 play in HDR10 only.
Re: Dolby Vision now possible through MP4 Mux.
On my LG C8, via DLNA, they all show the endless spinning wheel and never start playing back.yusesope wrote: ↑Thu Oct 29, 2020 5:24 pmI have generated four other FEL DTDL variants.
Each of them has small changes and the degree of complexity increases from file n1 to file n4.
These files can only be played using the INTERNAL PLAYER of LG TVs (via DLNA, USB).
If you want to try, you can find them HERE.
In your feedback please specify the TV model and the file that worked (if any of these will ever work).
Same behavior as the latest mp4muxer when creating dual track mp4s.
I thought you took inspiration from that code though. Maybe you could find a significant difference between 2018 and now's code.