Dolby Vision now possible through MP4 Mux.

[kazuma]

do we get a single-layer or a double-layer DV MP4-file with the tool of grencola?

My tool just uses dolbymp4muxer which just takes a dual layer m2ts / mkv and makes it mp4. it doesn't combine the layers like dvdfab does, that's proprietary tech which hasn't been reversed engineered yet. but I did notice dvdfab.exe works from a command line.. so potentially, provided you have an activated dvdfab license on your pc and I packed in all the required programs, I could make a fully automated one-click tool again where you just pick one of your uhd bd backups, and it makes you a single layer dv mp4 with the full original hd-audio retained.

i play DV-files with my LG C9 player, i'm good with only dts-sound. there is in my situation no need to use dvdfab i suppose?

[extranet]

OK this is a very long thread. I've looked through, tried a couple of things with DVDfab but it's just HDR. So my simple question is how do I get make DV rips/copies of my discs that I can then play on my 2019 Shield with HDR+DV?

If you mean a file that is HDR10 and DV you can’t, the Shield only supports Single layer DV files, the resulting file will not then playback in a player that only supports HDR10.
When you add a UHD full rip to DVDfab you then need to click the little spanner icon to change the setting to single layer, it defaults to double layer, that is why you are only getting HDR.
Regards.

Thanks. So does the manual solution now enable the single layer approach to work with object oriented audio? Sorry I'm sure this is somewhere in the thread. It would make sense to have a header post on page one summarising what is possible with links to appropriate pages for more info. Failing that a summary post anywhere in this thread.

[box4m]

I cant figure out why i cant play my dv single layer mp4s in MXPlayer on 2019 Shield, if i only use dvdfab and copy sound and nothing more, they work, but not if i merge them with mp4box (dts+chapters+dvdfab video)

Does it work for others?
And how can i achieve this yusesoplayer? Do i then sideload it somehow?

[Grencola]

I cant figure out why i cant play my dv single layer mp4s in MXPlayer on 2019 Shield, if i only use dvdfab and copy sound and nothing more, they work, but not if i merge them with mp4box (dts+chapters+dvdfab video)

Does it work for others?
And how can i achieve this yusesoplayer? Do i then sideload it somehow?

mx player doesn't officially support dts and dolby digital audio, so you need to load a custom codec. see here for explanation: https://www.guidingtech.com/37749/mx-player-no-audio/ there's also an xda link to the codec file, the mx_tegra3.zip should be the one for the shield I'd imagine.

[box4m]

I cant figure out why i cant play my dv single layer mp4s in MXPlayer on 2019 Shield, if i only use dvdfab and copy sound and nothing more, they work, but not if i merge them with mp4box (dts+chapters+dvdfab video)

Does it work for others?
And how can i achieve this yusesoplayer? Do i then sideload it somehow?

mx player doesn't officially support dts and dolby digital audio, so you need to load a custom codec. see here for explanation: https://www.guidingtech.com/37749/mx-player-no-audio/ there's also an xda link to the codec file, the mx_tegra3.zip should be the one for the shield I'd imagine.

I installed codecpack and got the whole "restart to install" process, i get sound but a black image and triggers HDR10

[box4m]

Does anyone know for sure what architecture the 2019 shield is? x86,x86_64,tegra2,tegra3,neon,neon64/ARMv8 ?

[Grencola]

Does anyone know for sure what architecture the 2019 shield is? x86,x86_64,tegra2,tegra3,neon,neon64/ARMv8 ?

it says right on the site I linked:

To know which platform codecs your device will support, open the MX Player Settings and navigate to the option Decoder. Here, navigate to the bottom of the page and you will find an option that says Custom Codec. You can find the type of codec you must download and use here. If you don’t want to go through all this trouble, there’s an all-in-one pack as well.

[technoobmaster]

Does anyone know for sure what architecture the 2019 shield is? x86,x86_64,tegra2,tegra3,neon,neon64/ARMv8 ?

it says right on the site I linked:

To know which platform codecs your device will support, open the MX Player Settings and navigate to the option Decoder. Here, navigate to the bottom of the page and you will find an option that says Custom Codec. You can find the type of codec you must download and use here. If you don’t want to go through all this trouble, there’s an all-in-one pack as well.

Earlier you said that playing a single layer dolby vision mp4 with atmos using yuseoplayer seems to be stuck on 60FPS, but it seems if I run the same file with mx player and the codecs yuseo provided it runs at 24fps on my shield. Is this correct or am I missing something?

[Grencola]

Earlier you said that playing a single layer dolby vision mp4 with atmos using yuseoplayer seems to be stuck on 60FPS, but it seems if I run the same file with mx player and the codecs yuseo provided it runs at 24fps on my shield. Is this correct or am I missing something?

whoa really? that's cool. I don't have a new shield to test it, but mx player on the fire tv stick 4k didn't do frame switching. I doubt the codec makes a difference but I'll try yusesopes with it and see.

[technoobmaster]

It doesnt show atmos on my AVR but it def plays sound and atmos is the only audio track

[DaMacFunkin]

It doesnt show atmos on my AVR but it def plays sound and atmos is the only audio track

Mmm that’s interesting, I’ve demuxed Atmos sound with FFmpeg as per the guide a few pages back, I’ve always thought something isn’t right as Mediainfo can’t correctly identify the stream as TrueHD/Atmos, just MBLA.
Subsequently when muxed back in with MP4box the stream is still not identified as THD.

[kazuma]

is there a difference between DV-mp4 and original DV with the eye? has anyone tested yet?

[DaMacFunkin]

is there a difference between DV-mp4 and original DV with the eye? has anyone tested yet?

I’ve tested Single layer and double layer from the same movie on the same LG C7 and 65” C9 and there is no difference, obvs both are mp4, mp4 is just a transport for the streams.
I think people are getting overly hung up over this, dual layer is interleaved into a single watchable item inside the TV, where in a single layer the the enhancement layer is already interleaved. One requires hardware (double layer) one can be done in pure processing power(single layer)

If Single layer was inferior LG would be lording it over all those Sony’s TVs that only accept single layer wouldn’t they?

[daddy]

In profile 5 (single layer) there is no enhancement layer.
In profile 7 (dual layer) there is an enhancement layer that is 1/4 the size of the main UHD layer.



So, a profile 5 DV file have the DV already applied to the video. This mean that if you read this video on a hdr10 system, the color are false.
In profile 5 you lost the hdr10 compatibility.

One requires hardware (double layer) one can be done in pure processing power(single layer)

This is false. Do you need a specific hardware for decoding dts-hd or truehd ?? no, this can be done in software.
For dual layer DV we just need a video player capable of reading 2 hevc streams at the same time.

There is already a project of plugin started by dolbylaboratories : https://github.com/DolbyLaboratories/do ... der_plugin

Dual layer stream support is not implemented. This example may be a good base for adding this feature, however.

[superfans124]

is there a difference between DV-mp4 and original DV with the eye? has anyone tested yet?

I actually just found a "blemish" in my Hannibal mp4, in 2 scenes I've noticed blow out highlights: extremely artificial-looking blocks of pixels, and all on light reflection off of character faces in interior scenes, not talking about sci-fi high intensity laser blasts...

I only "noticed" them because they jumped out at me, didn't "notice" them playing the disc (fairly certain they weren't there). it's gonna be quite a work out if I were to try to hunt these specific scenes down to capture on camera for demo.

but does it mean anything? IDK. of all the components in the entire ecosystem of ripping/converting/playing/displaying the file, somewhere a "glitch" happened? can't say, or this is just a one-off event? IDK.