Dolby Vision now possible through MP4 Mux.

[HongyuS]

And I movie on the 11 produce a doblyvision
File slightly different from the original.
Produced an profile 8 id36 doblyvision hlg.
So I phone 11pro can encode dovi/rpu/bl
Which played in doblyvision on my dv devices.

Any iOS/iPadOS device later than iPhone 8 / iPad Pro 2017 should be able to encode and play DoVi (requires latest iOS and iMovie for iOS)
And yes, the file should be slightly different in size. Because iMovie re-encodes the base-layer and also re-calibrates the DoVi RPU.

And for further info, which @yusesope might also be interested in, iMovie re-encodes any HDR into Dolby Vision (HDR10, HLG, HLG+DoVi). I guess iMovie only generates new RPU. Old RPU data only used when decoding.

My second test is to use uhbd dual to single layer mp4 in I move to encode in doblyvision
My question is does any further minuplation needed to uhd mp4s so I movie can accept them.

You should use the latest yusesope's tool (both BETA and GAMMA should work), and when muxing to mp4, you should make these modifications to mp4muxer suggested by yusesope.

I simply forced the value of "sample_entry_name_flag" (setting it to 1) through the "p_usr_cfg_es" pointer.
Add the row

Code: Select all

p_usr_cfg_es->sample_entry_name_flag = 1;

on line 7012 of the mp4_muxer.c file.

For something more dynamic, you'd better add a switch (something like --force-hvc1 1) in the frontend (mp4_muxer_app.c).
I have not checked but I think it is possible by modifying the ema_mp4_mux_set_input function in such a way that it accepts the value of the new switch and with the latter set usr_cfg_es->sample_entry_name_flag

I’m also going to try on my MacBook Pro.

For now (before Apple releases macOS Big Sur), only iMovie for iOS can encode DoVi. I tried Mac version yesterday, didn't work.

[yusesope]

What wrong ? Pls help me

If you followed all the instructions, then there is a problem with the patcher ... in the next few days I will release a new version which, in case of error, generates a log file that you can post. Through the latter I can understand how to fix the problem and improve the patcher.
Be patient and hold on ...

It is a dual track, dual layer m2ts file from the original - see Image 1. How can I tell whether it is a profile 7 file?
Specifically: \BDMV\STREAM\00294.m2ts from the 1917 ISO [US]
.........................................
Indeed - see Image 2.
.........................................
I didn't use any switches other than the "-skip_hdr10plus" for my comparison.

If the m2ts file with those characteristics comes from a UHD-BD then it is a profile 7.

My question is: if you say you didn't use the "-mode 2" switch (which is used to generate files with profile 8 ) but only the one to discard HDR10+ metadata then why did you patch the file by assigning a profile 8?

The file cannot be patched multiple times - I recommend starting from scratch!

Use my GAMMA version and at the third and last step assign the correct profile as I explained in the previous post.

The characteristics of the final MKV file depend on the switches used in the first step.

1917 is a FEL movie so you can get:

• 1917 FEL profile 7
• 1917 MEL profile 7
• 1917 profile 8 (profile 8 has no enhancement layer)

All previous variants may or may not have HDR10+ (depends on whether you used or didn't use -skip_hdr10plus)

Check the MKV file with Mediainfo at the end.

[kws53]

Ran GAMMA on 1917...
With no additional switches and Profile 8:
SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible
With -skip_hdr10plus:
SMPTE ST 2086, HDR10 compatible

Speed was 10.5x (AMD Ryzen 9 3900x), so 11minutes20seconds. No idea how to determine whether FEL or MEL (no MakeMKV...). And BDInfo doesn't provide this info either. 3rd party app?

Most importantly - how do I get DolbyVision?

The input file must be a dual track dual layer profile 7 file (e.g. an m2ts file inside the decrypted folder of a UHD-BD)

The mkv file obtained after the program has finished is not recognized as a file with DoVi!
Needs to be patched!

Did you use the mkv patcher as indicated in the third step (HERE)?

I don't understand what you mean when you talk about FEL or MEL: if in the first command line you used "-mode 2" then, when the patcher asks you, type 8 otherwise your file (FEL or MEL, it doesn't matter) will be a profile 7 and you will have to type 7 when prompted by the patcher!

Yusesope - After re-reading your original response, I may have not been clear in my original post. (also see my follow-up post earlier). NOTE: all mkv files were checked with MediaInfo (results are shown)
1) GAMMA ran flawlessly. ALL operations including the PATCH. NOTE: each file was run independently of the other - no patches on patches...
2) Since I didn't know whether I was dealing with an FEL or MEL file, and didn't know whether I needed profile 7 or profile 8, I ran multiple trials:

1. NO additional switches, profile 7, strictly default settings and then patch. Result was HDR+ file (SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible)
2. Adding the <-skip_hdr10plus> switch and then patch. As expected, the result was HDR file (SMPTE ST 2086, HDR10 compatible)
3. <-mode 2> switch, profile 8, and then patch. Result was HDR+ file (SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible)

The original M2TS is indeed Dual Layer DolbyVision (see attachment below). BUT I cannot determine if the ORIGINAL M2TS has MEL or FEL. What software will determine that?

Showing Dual Layer DolbyVision

Dual Layer.png (10.85 KiB) Viewed 30227 times

NEW INFORMATION: I dropped the original M2TS file into MediaInfo and found that it did not show DolbyVision, but HDR+, yet EAC3TO indicates otherwise. (again, see above)

[kws53]

If the m2ts file with those characteristics comes from a UHD-BD then it is a profile 7.

My question is: if you say you didn't use the "-mode 2" switch (which is used to generate files with profile 8 ) but only the one to discard HDR10+ metadata then why did you patch the file by assigning a profile 8?

The file cannot be patched multiple times - I recommend starting from scratch!

Use my GAMMA version and at the third and last step assign the correct profile as I explained in the previous post.

The characteristics of the final MKV file depend on the switches used in the first step.

1917 is a FEL movie so you can get:

• 1917 FEL profile 7
• 1917 MEL profile 7
• 1917 profile 8 (profile 8 has no enhancement layer)

All previous variants may or may not have HDR10+ (depends on whether you used or didn't use -skip_hdr10plus)

Check the MKV file with Mediainfo at the end.

My response and yours crossed paths. (see my post immediately above).
To your questions:

• I did use -mode 2 when producing profile 8
• I never patched multiple times
• I assigned correct profile depending on the switch and Title length (everything worked...)
• I check all of the MKV files with MediaInfo - hence I was able to provide you with the results

My issue right now is that I can produce an HDR+ profile 7 or profile 8 version. I can't produce a DolbyVideo profile version at all. Am I confusing HDR+ and DolbyVision, because EAC3TO says DolbyVision on the original video, but MediaInfo says HDR+ on the original M2TS file.

[koolkunz]

How does it work.
Given as input a Dual Track Dual Layer DoVi file (for now use the m2ts files present in the decrypted folders of your UHD-BDs), the tool should return a Single Track Dual Layer MKV file ready to be played on your devices.

python-3.7.6.amd64\python.exe src\app.py -mux -exp \path\to\your\original\file.m2ts

As written, this command line will generate a FEL or MEL file.
If you have a FEL file and want a MEL file, add the -fel_to_mel switch before the -mux one.
If you have a FEL or MEL file and want an 8.1 profile file add the -mode 2 switch before the -mux one.

I have a couple of questions that might sound dumb (please bear with me I got my first Dolby Vision TV-Sony X900H last week only)

1) When we are converting FEL file to MEL we are losing the advantages FEL has over MEL right?

2) When we are converting FEL file to 8.1, does the FEL data get retained?

Also I see your exoplayer being reffered a lot in your previous posts but I couldnt find it please link it.

And can anyone guide me to what is the difference between the various dolby vision profiles?

MY final goal is to be able to play FEL dolby vision mkvs/mp4s/ts through Plex or Kodi on my Sony X900H (Android TV). MEL/8.1 profile MKVs/MP4s play correctly already.

[yusesope]

My second test is to use uhbd dual to single layer mp4 in I move to encode in doblyvision

Any iOS/iPadOS device later than iPhone 8 / iPad Pro 2017 should be able to encode and play DoVi (requires latest iOS and iMovie for iOS)
And yes, the file should be slightly different in size. Because iMovie re-encodes the base-layer and also re-calibrates the DoVi RPU.

And for further info, which @yusesope might also be interested in, iMovie re-encodes any HDR into Dolby Vision (HDR10, HLG, HLG+DoVi). I guess iMovie only generates new RPU. Old RPU data only used when decoding.

At the moment it seems to be the only correct way to encode a UHD-BD with DoVi (we should then evaluate the quality of the file obtained ... I expressed my personal opinion HERE)
Keep experimenting and if you find anything unusual, post it here.

GAMMA ran flawlessly. ALL operations including the PATCH

1. NO additional switches, profile 7, strictly default settings and then patch. Result was HDR+ file (SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible)
2. Adding the <-skip_hdr10plus> switch and then patch. As expected, the result was HDR file (SMPTE ST 2086, HDR10 compatible)
3. <-mode 2> switch, profile 8, and then patch. Result was HDR+ file (SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible)

I can't produce a DolbyVideo profile version at all

Only the latest version of Mediainfo (Version 20.09, 2020-10-09) is capable of detecting DV in a MKV container.
I sincerely hope your version of Mediainfo is up to date...
otherwise...
I will look for you, I will find you, and I will patch you...

If the problem is not Mediainfo, then I kindly ask you to upload a 10 second sample of one of your MKV files obtained using GAMMA.
Use this command:

src\FFmpeg\ffmpeg_win_x64.exe -ss 0 -t 10 -i \path\to\GAMMA\output\file.mkv -c copy \path\to\file_cut_10_sec.mkv

TO THE COMMUNITY:
Have any of you bought the new Chromecast with Google TV?
If so, have you tried any files with DV?
On the audio side, how does it behave?
Thank you.


I think I've found a way to create MP4 files as well. GAMMA could then generate MP4 files with DV, keeping in mind the limitations of the container (ATMOS/TrueHD -> PCM 7.1 and not PGS subtitles. All other codecs, up to DTS:X, would be supported instead).
LG CX 2020 owners, for example, may be interested - they could take advantage of GAMMA's speed to generate MP4 files with DV (profile 8.1) and with custom audio and subtitles.
Is anyone interested or am I wasting my time?

[Manixx2020beyound]

I also have the google chromecast 4K dv
Its like the Xbox-1 only does LLDV no rgb8 capable dv. But as a consumer’s u would never know that without a vertex.
Plays well/ better frame rate matching than firestick,
Colors are a diff story, ( more testing needed).
Audio I can let u guys know later today.
Any clips I can test??
Audio wise??

[yusesope]

I also have the google chromecast 4K dv

Is that the one with the remote? The latest one?

EDIT:
Ok, the image clear up any doubts!

Its like the Xbox-1 only does LLDV no rgb8 capable dv. But as a consumer’s u would never know that without a vertex.
Plays well/ better frame rate matching than firestick,
Colors are a diff story, ( more testing needed).

Interesting, keep us updated!

Audio I can let u guys know later today.
Any clips I can test??

You can use these samples to test both Dolby and DTS.
Thank you.

[DaMacFunkin]

I also have the google chromecast 4K dv
Its like the Xbox-1 only does LLDV no rgb8 capable dv. But as a consumer’s u would never know that without a vertex.
Plays well/ better frame rate matching than firestick,
Colors are a diff story, ( more testing needed).
Audio I can let u guys know later today.
Any clips I can test??
Audio wise??

Hi, I have Chromecast with Google TV and frame rate switching is not supported, also there is no HD audio support and Plex app is outputting AAC 5.1 / 7.1 as PCM 2.0.
All these limitations are currently being discussed on Kodi and Plex forums.

[PlatypusW]

LG CX 2020 owners, for example, may be interested - they could take advantage of GAMMA's speed to generate MP4 files with DV (profile 8.1) and with custom audio and subtitles.
Is anyone interested or am I wasting my time?

I have an LG CX so happy to test. I’m not sure if it would gain anything over the fire stick though? But would be great for comparisons and it might even end up being better if some of the hdmi vs internal apps DV ‘settings’ queries turn out to be true. I’d love to try getting 7.1 pcm out of it as well, I didn’t know mp4 could contain that.

[quietvoid]

I have an LG CX so happy to test. I’m not sure if it would gain anything over the fire stick though? But would be great for comparisons and it might even end up being better if some of the hdmi vs internal apps DV ‘settings’ queries turn out to be true. I’d love to try getting 7.1 pcm out of it as well, I didn’t know mp4 could contain that.

The firestick doesn't play FEL so yes, a more convenient and faster way to create mp4s would be good for use in the LG internal player.

[PlatypusW]

I have an LG CX so happy to test. I’m not sure if it would gain anything over the fire stick though? But would be great for comparisons and it might even end up being better if some of the hdmi vs internal apps DV ‘settings’ queries turn out to be true. I’d love to try getting 7.1 pcm out of it as well, I didn’t know mp4 could contain that.

The firestick doesn't play FEL so yes, a more convenient and faster way to create mp4s would be good for use in the LG internal player.

This is true, if there is a faster way to create a playable file then I'm all for it. Definetely willing to do some tests to see what files will playback on the CX. My last attempt didn't work out so well though

[koolkunz]

I have a couple of questions that might sound dumb (please bear with me I got my first Dolby Vision TV-Sony X900H last week only)

1) When we are converting FEL file to MEL we are losing the advantages FEL has over MEL right?

2) When we are converting FEL file to 8.1, does the FEL data get retained?

Also I see your exoplayer being reffered a lot in your previous posts but I couldnt find it please link it.

And can anyone guide me to what is the difference between the various dolby vision profiles?

MY final goal is to be able to play FEL dolby vision mkvs/mp4s/ts through Plex or Kodi on my Sony X900H (Android TV). MEL/8.1 profile MKVs/MP4s play correctly already.

Anyone who can answer these questions please?

[yusesope]

1) When we are converting FEL file to MEL we are losing the advantages FEL has over MEL right?
2) When we are converting FEL file to 8.1, does the FEL data get retained?
Also I see your exoplayer being reffered a lot in your previous posts but I couldnt find it please link it.
And can anyone guide me to what is the difference between the various dolby vision profiles?
MY final goal is to be able to play FEL dolby vision mkvs/mp4s/ts through Plex or Kodi on my Sony X900H (Android TV). MEL/8.1 profile MKVs/MP4s play correctly already.

Correct. It is normal to have to give up something with this type of conversion (FEL->MEL) but the "losses" may not be as severe. Read THIS post and check out @RESET_9999 comparisons

Profile 8.1, by its nature, does not include any Enhancement Layer.
Read the official documentation to get an idea of ​​the various profiles (Chapter 2)

You can find my player HERE (to be used in conjunction with a DLNA server). Anyway, you better try the latest beta of PLEX.

To get an idea of ​​the capabilities of your TV then use @PapitaHD samples

Plex app is outputting AAC 5.1 / 7.1 as PCM 2.0.
All these limitations are currently being discussed on Kodi and Plex forums.

Perfect for 1995 ...

I have an LG CX so happy to test. I’m not sure if it would gain anything over the fire stick though? But would be great for comparisons and it might even end up being better if some of the hdmi vs internal apps DV ‘settings’ queries turn out to be true.

The firestick doesn't play FEL so yes, a more convenient and faster way to create mp4s would be good for use in the LG internal player.

From what I remember, owners of LG TVs have always had problems with my Single Track Dual Layer profile 7 files.
LGs were famous for their ability to play Dual Track Dual Layer profile 7 mp4 files.
Now that this functionality seems to have been inhibited, maybe my files (profile 8.1) can partially make up for the loss.
I don't have much hope in profile 7 (FEL/MEL) but the new LGs may be able to reproduce them (I am referring to the STDL files) ... only by trying will we find out.

I’d love to try getting 7.1 pcm out of it as well, I didn’t know mp4 could contain that.

Technically I have the possibility to store also an ATMOS/TrueHD audio track inside an MP4 container.
The problem is the device that has to play it. For example, I don't think your LG is capable of playing a multichannel PCM track or an ATMOS/TrueHD track in an mp4 file.

I remember I was unpleasantly surprised by the eARC implementation on the 2019 LG OLEDs (especially when using the internal player). I hope things have improved.

[quietvoid]

From what I remember, owners of LG TVs have always had problems with my Single Track Dual Layer profile 7 files.
LGs were famous for their ability to play Dual Track Dual Layer profile 7 mp4 files.
Now that this functionality seems to have been inhibited, maybe my files (profile 8.1) can partially make up for the loss.
I don't have much hope in profile 7 (FEL/MEL) but the new LGs may be able to reproduce them (I am referring to the STDL files) ... only by trying will we find out.

Oh, I thought you were referring to dual track mp4 as well. Those are pretty much the only reason I'd convert to mp4, because the C8 still supports them as profile 7 FEL.
8.1 being the only option kinda kills the idea for me, I'd just remux to MKV and play on the Firestick.
I think I've read that the 2020 models had an update that made them unable to play the dual track files.