Dolby Vision Tonemapping for Emby

[yocker 242]

4 hours ago, raudraido said:

why is that Jellyfin is able to tonemap DOVI content to SDR, but Emby isn't?

Licensing.

Emby is commercial software and has to pay a license for such things or might end up getting sued.
Jellyfin is opensource made by all kinds of volunteers so hard to go after any one.

In the end it doesn't really matter, videos without HDR fallback are rather rare as most TVs out there doesn't actually support Dolby Vision.

[BuzStringer 33]

Hi, are we any closer on this?

[Freddy 1]

Checking in on this yet again, It looks like Emby and Plex still do not support DV5 Tonemapping, what a bummer. I have to keep Jellyfin around just for this one feature. Bummer, I will get Emby Premier the same day this is supported. It's rather odd that it is not as it's just a script that calls FFMPEG w/ the appropriate settings. 

[Freddy 1]

On 10/17/2024 at 9:52 AM, yocker said:

Licensing.

Emby is commercial software and has to pay a license for such things or might end up getting sued.
Jellyfin is opensource made by all kinds of volunteers so hard to go after any one.

In the end it doesn't really matter, videos without HDR fallback are rather rare as most TVs out there doesn't actually support Dolby Vision.

Only Samsung does not support DV. And DV5 is by far the most popular format.  As I posted below, it's just a script that Emby needs to _allow_ to be called to run FFMPEG. No licensing issues whatsoever.

 

[yocker 242]

3 hours ago, Freddy said:

Only Samsung does not support DV. And DV5 is by far the most popular format.  As I posted below, it's just a script that Emby needs to _allow_ to be called to run FFMPEG. No licensing issues whatsoever.

 

Personally i find it rare to find a Dolby Vision video without HDR fallback and if i do there are always alternative to choose from.

It's not a question about what Emby needs to run, it's a question about what the law says.
I can easily sell alcohol any where i want but without a license to do so i am not allowed to do it.

[raudraido 44]

1 hour ago, yocker said:

Personally i find it rare to find a Dolby Vision video without HDR fallback and if i do there are always alternative to choose from.

It's not a question about what Emby needs to run, it's a question about what the law says.
I can easily sell alcohol any where i want but without a license to do so i am not allowed to do it.

So, you know this or just assume? You know what the say about assuming..

[yocker 242]

36 minutes ago, raudraido said:

So, you know this or just assume? You know what the say about assuming..

Careful, you seem to assume things as well.
It was discussed some time ago in another thread.

It isn't the biggest problem anyway, Samsung in their infinite wisdom doesn't support it, LG only support it in MP4 containers that are becoming increasingly rare every day and it's equally rare for videos not to have HDR fallback (in my experience).

[Freddy 1]

On 12/16/2024 at 12:46 AM, yocker said:

Careful, you seem to assume things as well.
It was discussed some time ago in another thread.

It isn't the biggest problem anyway, Samsung in their infinite wisdom doesn't support it, LG only support it in MP4 containers that are becoming increasingly rare every day and it's equally rare for videos not to have HDR fallback (in my experience).

I do agree that recently I am seeing DV/HDR versions of what were DV only.. I have even started the process of fetching some of these but it seems like such a waste of time.  But I do think it is legal to allow scripting and let the user/owner of the Emby SW run scripts that call 3rd party tools to help out in playing videos, same as HW acceleration, except this is SW acceleration via FFMPEG. No difference in a legal since, and certainly not Illegal! I dont even need Emby to write the scripts, I could just grab the command line to run FFMPEG from JellyFin but enjoy the user experience of Plex.

So that's where we disagree, this can be done legally. There is no copyright law forbidding Emby to allow me to run a 3rd party helper tool.

Edited December 20, 2024 by Freddy
Wrote Plex in place of Emby

[Freddy 1]

4 minutes ago, Freddy said:

I do agree that recently I am seeing DV/HDR versions of what were DV only.. I have even started the process of fetching some of these but it seems like such a waste of time.  But I do think it is legal to allow scripting and let the user/owner of the Emby SW run scripts that call 3rd party tools to help out in playing videos, same as HW acceleration, except this is SW acceleration via FFMPEG. No difference in a legal since, and certainly not Illegal! I dont even need Emby to write the scripts, I could just grab the command line to run FFMPEG from JellyFin but enjoy the user experience of Plex.

So that's where we disagree, this can be done legally. There is no copyright law forbidding Emby to allow me to run a 3rd party helper tool.

As you can see by my Edit correcting Plex/Emby, I am part of this same discussion on Plex and they use the same excuse for not implementing it, almost verbatim.

[yocker 242]

42 minutes ago, Freddy said:

I do agree that recently I am seeing DV/HDR versions of what were DV only.. I have even started the process of fetching some of these but it seems like such a waste of time.  But I do think it is legal to allow scripting and let the user/owner of the Emby SW run scripts that call 3rd party tools to help out in playing videos, same as HW acceleration, except this is SW acceleration via FFMPEG. No difference in a legal since, and certainly not Illegal! I dont even need Emby to write the scripts, I could just grab the command line to run FFMPEG from JellyFin but enjoy the user experience of Plex.

So that's where we disagree, this can be done legally. There is no copyright law forbidding Emby to allow me to run a 3rd party helper tool.

Dolby Vision is owned by Dolby, you can't just support it in ways you want without paying a fee to Dolby.
Sadly doesn't matter how easy it is to add support when you require a license to make it legal.

Jellyfin having support for Dolby Vision transcoding is not legal as i highly doubt they pay any form of license for it, they can get away with it because they are open source, it has no real owner and any body (more or less) can add to the code.
At some point they will be forced to remove it but it might return again because some one else then just adds support for it.

No, there is no law against making support for plugins and if you have the knowledge to make Dolby Vision transcoding support for >YOUR< Emby server then go for it. Just know that it's still illegal to do so without a license.