HLG HDR problems

If I play this file

General
Unique ID                                : 323273015953064809030415745985817427845 (0xF3341E3FF8E0D61C62C6EBD746C93F85)
Complete name                            : E:\S2022E93.mkv
Format                                   : Matroska
Format version                           : Version 4
File size                                : 13.5 GiB
Duration                                 : 1 h 33 min
Overall bit rate                         : 20.7 Mb/s
Encoded date                             : UTC 2022-10-09 12:08:55
Writing application                      : mkvmerge v71.0.0 ('Altitude') 64-bit
Writing library                          : libebml v1.4.4 + libmatroska v1.7.1

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L5.1@Main
Codec ID                                 : V_MPEGH/ISO/HEVC
Duration                                 : 1 h 33 min
Bit rate                                 : 19.9 Mb/s
Width                                    : 3 840 pixels
Height                                   : 2 160 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 50.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Bits/(Pixel*Frame)                       : 0.048
Stream size                              : 13.0 GiB (96%)
Default                                  : Yes
Forced                                   : No
Color range                              : Limited
Color primaries                          : BT.2020
Transfer characteristics                 : HLG / BT.2020 (10-bit)
Matrix coefficients                      : BT.2020 non-constant

Audio #1
ID                                       : 2
Format                                   : E-AC-3 JOC
Format/Info                              : Enhanced AC-3 with Joint Object Coding
Commercial name                          : Dolby Digital Plus with Dolby Atmos
Codec ID                                 : A_EAC3
Duration                                 : 1 h 33 min
Bit rate mode                            : Constant
Bit rate                                 : 640 kb/s
Channel(s)                               : 6 channels
Channel layout                           : L R C LFE Ls Rs
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 330 ms
Stream size                              : 428 MiB (3%)
Title                                    : Deutsch Dolby Digital Plus Atmos 5.1 (UHDTV)
Language                                 : German
Service kind                             : Complete Main
Default                                  : Yes
Forced                                   : No
Complexity index                         : 13
Number of dynamic objects                : 5
Bed channel count                        : 8 channels
Bed channel configuration                : L R C LFE Ls Rs Lb Rb

Audio #2
ID                                       : 3
Format                                   : E-AC-3
Format/Info                              : Enhanced AC-3
Commercial name                          : Dolby Digital Plus
Codec ID                                 : A_EAC3
Duration                                 : 1 h 33 min
Bit rate mode                            : Constant
Bit rate                                 : 96.0 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 31.250 FPS (1536 SPF)
Compression mode                         : Lossy
Delay relative to video                  : 507 ms
Stream size                              : 64.2 MiB (0%)
Title                                    : Deutsch Dolby Digital Plus 2.0 (UHDTV)
Language                                 : German
Service kind                             : Complete Main
Default                                  : No
Forced                                   : No

on my 4K+, HLG HDR is not triggered on my TV (LG C9).

Playing this file directly on the TV by plugging in the HDD into the TV does trigger HLG HDR.

The “Dolby Vision w/embedded HLG HEVC 60fps” Kodi sample does trigger HLG HDR when playing on the 4K+.

So I wonder why the first file does not trigger HLG HDR when being played on the 4K+.

Logs

I know what this is. Thanks for the report. Does your TV indicate ‘BT2020’ at all? (without HLG).

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It does indeed indicate BT.2020


Screenshot_20221015-150948

Do you have an ETA for a potential fix. Yeah I know, there will be a fix when a fix is ready. Just wanted to know if it will rather be days or maybe weeks/months?

I’ve pushed a fix to our source code. I don’t know when the next update will be published.

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Does this mean this is available via staging?

Not yet. It will have to be built first.

It will be in the next update.

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This should now be fixed and in today’s update.

Cheers

Sam

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Alright, will try this when the hotfix for the HEVC playback issue is live.

The fix for HEVC playback has been made available

Sam

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HLG HDR is now triggered with the aforementioned file. Thanks a lot.

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Great – thanks for confirming.

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