Pass over HDR10+ and Dolby Vision information?

[SeeMoreDigital]

Originally Posted by Nico8583

Thank you both. Is there a BD movie with DoVi and HDR10+ ? Or it's not possible ?
It should be a good thing to get a public algorithm to convert DoVi to HDR10+, I'm trying to find some informations.

Yes there are...

The Blu-ray Forum has a constantly updated list of HDR10+ movies (there are currently only around 50). If you click on a movie cover you'll be able to find out which movies are also encoded with Dolby Vision.

Here's a few to get you started: -

1917 [With FEL Dolby Vision]
Birds of Prey (And The Fantabulous Emancipation of One Harley Quinn) [With MEL Dolby Vision]
Jaws [With FEL Dolby Vision]
The Shining [With MEL Dolby Vision]
The Wizard Of Oz [With MEL Dolby Vision]

I bought 'Birds Of Prey' a few weeks ago, which offers MEL Dolby Vision and HDR10+. But there are some FEL Dolby Vision and HDR10+ releases too


Cheers

[Nico8583]

Thank you, I'll look to buy one of them

[ShortKatz]

Wow, thanks to all of you for all suggestions. I will give this a try. On the long run it seems it is planned that HandBrake simply passthru all mastering display / content light / dynamic metadata.

[RanmaCanada]

Originally Posted by ShortKatz

Wow, thanks to all of you for all suggestions. I will give this a try. On the long run it seems it is planned that HandBrake simply passthru all mastering display / content light / dynamic metadata.

If it does, that would be fantastic.

[ShortKatz]

Originally Posted by RanmaCanada

If it does, that would be fantastic.

At least for mastering display / content light metadata there is a PR. I've tested it and it works nicely for me.

[Stacey Spears]

Originally Posted by Nico8583

Thank you both. Is there a BD movie with DoVi and HDR10+ ? Or it's not possible ?
It should be a good thing to get a public algorithm to convert DoVi to HDR10+, I'm trying to find some informations.

Yes, 2018 Robin hood has both. When you put both into the same encoded file, then you may not have a choice which version you see. I think one defaults to HDR10+.

I have both on my disc, but in separate encodes. My next disc will also have SL-HDR2 (Advanced HDR by Technicolor).

[SeeMoreDigital]

Originally Posted by Stacey Spears

Yes, 2018 Robin hood has both. When you put both into the same encoded file, then you may not have a choice which version you see. I think one defaults to HDR10+.

Robin Hood!!! That's a terrible movie. And yes it does default to HDR10+ when played in an OPPO coupled with an HDR10+ and Dolby Vision capable television, such as the 2020/21 Panasonic or Philips models


Cheers

[ShortKatz]

By the way, if somebody is interested to give this a try. The latest HandBrake snapshot build now supports 10bit HDR10 (if all filters are disabled and the output codec is 10bit) and passthru of all mastering display / content light metadata. I used it to encode my Wonder Woman UHD Blu-ray for a test.

[Lollaskates]

Originally Posted by quietvoid

For HDR10+ you can extract to JSON using https://github.com/quietvoid/hdr10plus_parser
And then feed the JSON to x265: https://x265.readthedocs.io/en/maste...on-dhdr10-info

For Dolby Vision, same principle: https://github.com/quietvoid/dovi_tool#extract-rpu
Feed to x265 with: https://x265.readthedocs.io/en/maste...lby-vision-rpu
Also have to specify the profile.

You'll need to figure out what profile your devices are compatible with, most likely converting to profile 8.1 is fine for most cases.
However this does not support cropped Dolby Vision encodes out of the box just yet, a modification to the code is necessary to override the metadata.

Sorry, new to handling DV - Ive got a DV profile 7 MKV , (BL+EL+RPU) that i'm trying to encode with x265. In your instructions above, you mention extracting the RPU and then feeding it to x265.

Am I extracting the RPU as-is and then feeding it to x265 and specifying profile 8.1? or am I using that same tool to convert the RPU from profile 7 to profile 8.1 and then feeding it to x265 while specifying profile 8.1?

Thanks

[quietvoid]

You would have to convert the RPU to profile 8, and "crop" if necessary for your encode.
The command would look like this:

dovi_tool -m 2 -c extract-rpu

If not cropping AND downscaling, then it gets more complicated since you have to edit the RPU itself..

[Lollaskates]

Originally Posted by quietvoid

You would have to convert the RPU to profile 8, and "crop" if necessary for your encode.
The command would look like this:

dovi_tool -m 2 -c extract-rpu

If not cropping AND downscaling, then it gets more complicated since you have to edit the RPU itself..

Thanks! For me just encoding it as-is, no cropping or downscaling.

Cheers

[LazyNcoder]

Originally Posted by quietvoid

You would have to convert the RPU to profile 8, and "crop" if necessary for your encode.
The command would look like this:

dovi_tool -m 2 -c extract-rpu

If not cropping AND downscaling, then it gets more complicated since you have to edit the RPU itself..

Let me get this straight. If there is no cropping, should we still use the crop switch?

I want to encode a bluray which has both HDR10+ and DV

for the HDR10+ part, I did it with hdr10plus_parser.exe
Since I heard you cannot crop the video on HDR10+, I didn't crop it.

Now, I want to include both HDR10+ and DV just like the source

Should I use the crop switch?


My plan is to feed both json and rpu to x265
Is this the correct way?

I'd be thankful if any one can help me with this.

Also, does -m 2 convert the profile to 8.1 or 8.2??

What switches should I enable for the DV on x265?

[quietvoid]

Originally Posted by LazyNcoder

Let me get this straight. If there is no cropping, should we still use the crop switch?

I want to encode a bluray which has both HDR10+ and DV

for the HDR10+ part, I did it with hdr10plus_parser.exe
Since I heard you cannot crop the video on HDR10+, I didn't crop it.

Now, I want to include both HDR10+ and DV just like the source

Should I use the crop switch?


My plan is to feed both json and rpu to x265
Is this the correct way?

I'd be thankful if any one can help me with this.

Also, does -m 2 convert the profile to 8.1 or 8.2??

What switches should I enable for the DV on x265?

You can absolutely crop with HDR10+, and resizing the image as well.

In summary for Dolby Vision...

Source video 2160p with letterbox bars:
encoded as 2160p with letterbox bars: don't use crop.
encoded as 2160p and cropped (no more letterbox bars): use crop.

encoded as 1080p with letterbox bars: you need to edit the active area to set the final letterbox bars size as offsets, see documentation.
encoded as 1080p and cropped: use crop.


If you encode HDR10 video (from a HDR10 profile 7 source, such as UHD BD), you should convert to profile 8.1 (which is Dolby Vision w/ HDR10 backwards compatibility)
So that would be mode 2.

In x265, you would add these for Dolby Vision: --dolby-vision-profile 8.1 --dolby-vision-rpu RPU.bin
However if you're not setting VBV rates, x265 will warn you.

And for HDR10+, it's recommended to only add: --dhdr10-info metadata.json

Hopefully this clears up some confusion.

[LazyNcoder]

Originally Posted by quietvoid

You can absolutely crop with HDR10+, and resizing the image as well.

In summary for Dolby Vision...

Source video 2160p with letterbox bars:
encoded as 2160p with letterbox bars: don't use crop.
encoded as 2160p and cropped (no more letterbox bars): use crop.

encoded as 1080p with letterbox bars: you need to edit the active area to set the final letterbox bars size as offsets, see documentation.
encoded as 1080p and cropped: use crop.


If you encode HDR10 video (from a HDR10 profile 7 source, such as UHD BD), you should convert to profile 8.1 (which is Dolby Vision w/ HDR10 backwards compatibility)
So that would be mode 2.

In x265, you would add these for Dolby Vision: --dolby-vision-profile 8.1 --dolby-vision-rpu RPU.bin
However if you're not setting VBV rates, x265 will warn you.

And for HDR10+, it's recommended to only add: --dhdr10-info metadata.json

Hopefully this clears up some confusion.

First of all, thank you for being so humble. Couldn't have more respect for someone like you.

So, is there anything needed when we crop a HDR10+ video? something like -c switch with DV? Nothing? Just crop it like a regular video and it's fine?

I did everything you said but I get this error everytime:
Error: fwrite() call failed when writing frame: 3, plane: 1, errno: 32
Output 45 frames in 38.79 seconds (1.16 fps)

Video encoding using x265 failed with exit code: -1073741819 (0xC0000005)

-----------

I figured out this is about empty VBV parameteres.

After adding --vbv-bufsize 20000 --vbv-maxrate 20000 to the command like, the problem goes away but the results has missing DV in it. It's just a HDR10+ video as media info states.

The source is:
"Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU, Blu-ray compatible / SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible"

The result(with --dolby-vision-profile 8.1 --dolby-vision-rpu "E:\1.bin"
"SMPTE ST 2094 App 4, Version 1, HDR10+ Profile B compatible"

Any suggestions?

[quietvoid]

There's nothing to do for the HDR10+ metadata, it's supposed to be compatible for any resolution.

For MediaInfo to detect Dolby Vision, you need to mux the video to a compatible container.
MKVToolNix version 58 and newer supports this.

Does the x265 log mention if it worked successfully?
It should say this: VES muxing with Dolby Vision RPU file successful in x265

[LazyNcoder]

Originally Posted by quietvoid

There's nothing to do for the HDR10+ metadata, it's supposed to be compatible for any resolution.

For MediaInfo to detect Dolby Vision, you need to mux the video to a compatible container.
MKVToolNix version 58 and newer supports this.

Does the x265 log mention if it worked successfully?
It should say this: VES muxing with Dolby Vision RPU file successful in x265

Thank you very much. I checked the hevc before muxing to MKV. After muxing it, mediainfo shows the DV.

But there is one other thing. I noticed the info on the source:
Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU

But on the encoded file it's:
Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU

Is this OK? I mean the "EL" is missing on the encoded file. I don't know what that is anyways

Again, thank you

[quietvoid]

Originally Posted by LazyNcoder

But there is one other thing. I noticed the info on the source:
Dolby Vision, Version 1.0, dvhe.07.06, BL+EL+RPU

But on the encoded file it's:
Dolby Vision, Version 1.0, dvhe.08.06, BL+RPU

Is this OK? I mean the "EL" is missing on the encoded file. I don't know what that is anyways

Yes it's normal, only profile 7 requires the EL (enhancement layer), which is a separate video track.

[Boulder]

So is it possible to downscale the normal video to 1440p or 1080p and then combine it with the DV data when encoding?

[quietvoid]

Originally Posted by Boulder

So is it possible to downscale the normal video to 1440p or 1080p and then combine it with the DV data when encoding?

It should work fine, there's only more steps involved if there are still letterbox bars in the content.

[Boulder]

Originally Posted by quietvoid

It should work fine, there's only more steps involved if there are still letterbox bars in the content.

I never leave the black bars there, I always crop them before denoising and downscaling. So this would be just a case of running dovi_tool -m 2 -c extract-rpu to get the RPU file for the x265 encoding part?