HDR transcoding without Tone Mapping

[Flest 8]

if the device supports hdr, why does the server use tone mapping?

 

source - 4k hdr

android can play h265 with hdr but the server  uses h264 for transcoding...

is this a bug?
server should use h264 with tone mapping for devices without h265 support
I'm right?

Edited February 11, 2023 by Flest

[GrimReaper 4749]

Have you explored Stats for Nerds to see reason for transcoding? You can observe same in server Dashboard. And you can also post ffmpeg log created, as transcoding reasons can be various. 

[ebr 16187]

Hi.  Transcoding to HDR is not currently possible.  We can investigate why your item is transcoding with the information requested above.  Thanks.

 how to report a media playback issue.

[Flest 8]

1 hour ago, ebr said:

Hi.  Transcoding to HDR is not currently possible. 

but why?

doesn't nvenc support hdr encoding?

1 hour ago, ebr said:

 We can investigate why your item is transcoding with the information requested above.  Thanks.

because I chose transcoding)
for local playback i use direct playback or kodi, but when i'm not at home i use transcoding.

and i would like to be able to transcode to h265 (almost all devices support h265)
why does it encode in h264 if the device supports h265? 

[GrimReaper 4749]

1 minute ago, Flest said:

and i would like to be able to transcode to h265 (almost all devices support h265)

There is no transcoding to H.265 in Emby, only conversions can be done using it. You can lend your support here:

 

 

[Flest 8]

5 minutes ago, GrimReaper said:

There is no transcoding to H.265 in Emby, only conversions can be done using it. You can lend your support here:

 

 

I can't open this picture, link opens the topic

[GrimReaper 4749]

It IS a link to a Feature Request topic with the title "Transcode in H265". 

[Flest 8]

8 minutes ago, GrimReaper said:

It IS a link to a Feature Request topic with the title "Transcode in H265". 

I don't see an answer in this topic, off topic
seems like the requests is dead  ((( first post from 2017

Edited February 11, 2023 by Flest

[GrimReaper 4749]

7 minutes ago, GrimReaper said:

It IS a link to a Feature Request topic with the title "Transcode in H265". 

Meaning same has been requested and the topic is still open as it is not yet implemented, I don't know of any other way to explain it to you. You can support it by up voting first post. 

[Flest 8]

5 minutes ago, GrimReaper said:

Meaning same has been requested and the topic is still open as it is not yet implemented, I don't know of any other way to explain it to you. You can support it by up voting first post. 

I understand that the request is open

But it's been 5.5 years...
something tells me that voting will not change the situation (((

it is unlikely that they will ever do this, it is more likely that n265 will become obsolete sooner

at such a speed of implementation, it is necessary to start implementing av1

[GrimReaper 4749]

2 minutes ago, Flest said:

at such a speed of implementation, it is necessary to start implementing av1

You can support that one as well:

 

[Luke 42083]

Actually it's not related to either of those. When transcoding, the HDR info is lost, so it has to be tonemapped.

[softworkz 5073]

9 hours ago, Flest said:

at such a speed of implementation, it is necessary to start implementing av1

Now tell me - assuming we would be able to transcode HEVC/HDR to AV1/HDR - how does the transcoded video get transferred to the client (streaming protocol) and which clients would be able to play this reliably?

[Flest 8]

5 hours ago, Luke said:

Actually it's not related to either of those. When transcoding, the HDR info is lost, so it has to be tonemapped.

no...

nvidia nvenc doesn't support hdr encoding?
cpu supports

its my rip 4k hdr -> 1080 hdr