How to detect Dolby Vision in a videofile?

[Asmodian]

I have 4 or 5 Dolby Vision UHD blurays and would be happy to provide samples.

Would simply cutting the beginning of a m2ts file be good or is there another way a sample could be made? Most utilities seem to not understand exactly how Dolby Vision works and it may require more files in the bluray structure to work, like the playlist. Obviously I do not have any utilities to play Dolby Vision so I cannot tell if my sample preparation preserves Dolby Vision or not.

[easyfab]

there are 2 samples here : https://kodi.wiki/view/Samples

[rwill]

http://dashif.org/wp-content/uploads/2017/09/DASH-IF-IOP-v4.1-clean.pdf

http://www.etsi.org/deliver/etsi_gs/CCM/001_099/001/01.01.01_60/gs_ccm001v010101p.pdf

[d3rd3vil]

Holy moly lots of Dolby Vision information?! Well who can use that...probably no one.

Does anyone know where to get that dovi_proenc_ves_muxing_spec.pdf?

All the documents and apparently the most important one is missing :) Ofc

[d3rd3vil]

Most important document but no one has it? How can that be

[foxyshadis]

Most important document but no one has it? How can that be

Lots of people have it, but no one's broken the NDA yet. If anything changes, someone will post, so stop bumping this.

[d3rd3vil]

Its a package as far as I know. If people have the documents and they leaked a lot already...why not the most important one? Another big shame

[d3rd3vil]

Seems like lots of people are working hard on Dolby Vision. Thank you all for your hard work and determination :) See you in 2020 (or 2019? Is that possible?)

[d3rd3vil]

Ok so here we go apparently. The time was ripe. Apparently just have to leech that Dolby MP4 muxer and then mux the 2 files you gotta demux first (with TSMuxxer for example, 2 hevc streamfiles, the 4k video stream and the 1080p DV extra stream). Seems to work. Dolby Vision inside a mp4 container and the stuff is there!
Just need to roll up ones sleeves and done. No prob

It isnt single layer stuff though. Apparently :(

[imhh11]

yeah still dual layers DV but at least now we can watch DV remux in our TV via USB.

i tried and it works well but I haven't watched a complete movie yet.



only work with AC3 / E-AC-3 / AC-4 / AAC audio.

https://github.com/DolbyLaboratories/dlb_mp4base

mp4muxer --dv-profile 7 --input-file (baselayername.hevc1) --input-file (dvlayername.hevc2) --input-file (audio.ac3) --media-lang eng --output-file (nameofmovie).mp4

[kolak]

Ok so here we go apparently. The time was ripe. Apparently just have to leech that Dolby MP4 muxer and then mux the 2 files you gotta demux first (with TSMuxxer for example, 2 hevc streamfiles, the 4k video stream and the 1080p DV extra stream). Seems to work. Dolby Vision inside a mp4 container and the stuff is there!
Just need to roll up ones sleeves and done. No prob

It isnt single layer stuff though. Apparently :(

You can't just with re-muxing convert dual layer DV into single layer. This would need some DV engine (which is Dolby secret) to actually create final "image" and then re-encoding to new h265 file ( as far as I can tell).

[mariner]

yeah still dual layers DV but at least now we can watch DV remux in our TV via USB.

i tried and it works well but I haven't watched a complete movie yet.



only work with AC3 / E-AC-3 / AC-4 / AAC audio.

https://github.com/DolbyLaboratories/dlb_mp4base

mp4muxer --dv-profile 7 --input-file (baselayername.hevc1) --input-file (dvlayername.hevc2) --input-file (audio.ac3) --media-lang eng --output-file (nameofmovie).mp4

Thank you, imhh11.

[Grencola]

I made a simple winrar sfx file that dumps dolbymp4muxer and eac3to into your desired movie's folder, runs some scripts I wrote, then clears itself leaving just the original file and the new dv mp4.

it automatically demuxes the video tracks, converts the audio, and muxes an mp4 all in like one click. not that it was complicated before, but streamlining helps the masses :) a few features that actually makes it handy to have:

-original filename is kept and applied to the mp4 file as well
-scans the folder for either an m2ts or mkv file and runs the appropriate script or prompts and exits if neither was found
-checks for adequate disk space before proceeding
-checks the file for a DV track where if no dv was found it prompts and exits out properly instead of just mass errors.
-calculates the total time it takes for the procedure to finish

let me know what you think.

https://bit.ly/2WbHZR0

[SeeMoreDigital]

I made a simple winrar sfx file that dumps dolbymp4muxer and eac3to into your desired movie's folder, runs some scripts I wrote, then clears itself leaving just the original file and the new dv mp4. Hi @Grencola,

I have just used your little tool to re-mux my 4K UHD 'full disc' back-up of Forrest Gump to an .MP4 file. Although the whole process took a couple of hours to complete on my low powered Asus laptop, I'm happy to confirm that the .MP4 file played perfectly on my OPPO UDP-203 and LG television complete with Dolby Vision flag ;)