Have HDR issues with darkness been resolved? Still seeing some issues

Help and Support Vero 4K / Vero 4K +
1

Good day team!
Noticed after watching a movie that was HDR seemed very dark and also had the same movie with no HDR and was quite different (brighter)
Same movie, similar file size (~30gb) one is HDR one is not. Both appear to be 10bit.

HDR file is very grey and flat, non-hdr file much more colorful and bright.,

I have a Sony XBR75X900E & Denon AVR-X2300W
Adjust Refresh rate is set to Always, and gui is at 1080p

I know in the last year there were a lot of improvements done with this on the Vero 4k, so if there are issues like this, are we thinking it might be due to poor encoding?

I have a bunch of comparison info i did on both files, as well as my equipment which is 4K and HDR compliant and new 2.0 hdmi cables.

/media$ cat /sys/class/amhdmitx/amhdmitx0/edid
Rx Brand Name: DON
Rx Product Name: DENON-AVR
Manufacture Week: 0
Manufacture Year: 2016
Physical size(cm): 166 x 93
EDID Version: 1.3
EDID block number: 0x1
blk0 chksum: 0x47
Source Physical Address[a.b.c.d]: 3.5.0.0
YCC support 0x03, VIC (native 255):
ColorDeepSupport 0xb8 10/12/16/Y444 1/1/0/1
97 96 93 94 95 98 31 16 20 5 19 4 32 34 60 62 18 22 3 7 17 21 2 6 1 101 102 14 35 15 36 95 94 93 98 353 352 357 358
Audio {format, channel, freq, cce}
{1, 7, 0x7f, 0x07}
{7, 5, 0x1e, 0x00}
{2, 5, 0x07, 0x00}
{11, 7, 0x7e, 0x03}
{10, 7, 0x06, 0x03}
{12, 7, 0x7e, 0x03}
{11, 7, 0x7e, 0x01}
Speaker Allocation: 0x5f
Vendor: 0x000c03
MaxTMDSClock1 300 MHz
Vendor2: 0xc45dd8
MaxTMDSClock2 600 MHz
Colorimetry: 0xdf
SCDC: 1
RR_Cap: 0
LTE_340M_Scramble: 0
HDR DeepColor
checkvalue: 0x477f0000

==================================
cat /sys/class/amhdmitx/amhdmitx0/disp_cap
480p60hz
576p50hz
720p50hz
720p60hz
1080p24hz
1080p30hz
1080i50hz
1080p50hz
1080i60hz
1080p60hz
2160p24hz
2160p25hz
2160p30hz
2160p50hz
2160p50hz420
2160p60hz
2160p60hz420
smpte24hz
smpte50hz
smpte50hz420
smpte60hz
smpte60hz420
===================================

HDR FILE
/media$ cat /sys/class/amhdmitx/amhdmitx0/config
AVIF VIC: 0
VIC: 93 3840x2160p24hz
Colour depth: 10-bit
Colourspace: YUV444
Colour range: limited
EOTF: HDR10
YCC colour range: limited
PLL clock: 0xc000029a, Vid clock div 0x000b0000
Aspect ratio: 16:9/full frame
Audio config: on
3D config: off

================================

Non HDR file - same movie
/media$ cat /sys/class/amhdmitx/amhdmitx0/config
AVIF VIC: 0
VIC: 93 3840x2160p24hz
Colour depth: 10-bit <–Curious that OSMC gui shows it as 8 bit, but this command reports 10
Colourspace: YUV444
Colour range: limited
EOTF: SDR
YCC colour range: limited
PLL clock: 0xc000029a, Vid clock div 0x000b0000
Aspect ratio: 16:9/full frame
Audio config: on
3D config: off

================================

NON HDR Mediainfo:
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5@High
Codec ID : V_MPEGH/ISO/HEVC
Duration : 3 h 1 min
Bit rate : 24.2 Mb/s
Width : 3 840 pixels
Height : 1 608 pixels
Original height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.163
Stream size : 30.7 GiB (95%)
Language : English
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

===================================

HDR file Mediainfo
Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Commercial name : HDR10
Format profile : Main 10@L5@High
Codec ID : V_MPEGH/ISO/HEVC
Duration : 3 h 1 min
Bit rate : 23.9 Mb/s
Width : 3 840 pixels
Height : 1 608 pixels
Original height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.162
Stream size : 30.4 GiB (95%)
Language : English
Default : Yes
Forced : No
Color range : Limited
Color primaries : BT.2020
Transfer characteristics : PQ
Matrix coefficients : BT.2020 non-constant
Mastering display color primaries : BT.2020
Mastering display luminance : min: 0.0020 cd/m2, max: 4000 cd/m2
Maximum Content Light Level : 1011 cd/m2
Maximum Frame-Average Light Level : 592 cd/m2

2

I can get this effect by sending an HDR signal to a non-HDR TV. Check your settings on the TV.

Where in the GUI are you reading 8 bits?

3

Could it be the encode?
Bit odd that the HDR/non-HDR version is the same size and the bitrate is lower than the non-HDR version…

4

Sony TV confirmed to be setup correctly and shows as receiving an HDR signal. Contrast and brightness also good.

When the movie is scraped into Kodi, when you click the movie and it shows the details at the bottom about Company, Aspect ratio, audio etc - the skin I’m using Aeon MQ8 shows if the file is SDR or HDR and 8 or 10bit.

And agreed that the 2 files are so similar in size, which gives me the feeling the encodes were rushed to be released and might be a bit wonky

5

Can you upload the MediaInfo?

6

There’s really no reason why an HDR file should be bigger than SDR if they are the same bit-depth.

@sam_nazarko Scroll up.

7

Maybe this is a title that would benefit from MaxFALL/MaxCLL passthrough

8

But the MaxCLLvalue isn’t unusual…

9

CLL is 1000 so our fallback would handle it well, yes.

10

In this particular case the problem seems to be the encoding of the HDR version this movie (one can take a good guess which one it is from the running time). I too was wondering why it looks so dull. Someone made an encoding error, or our Veros can not cope with it - but:
Newer (other) versions of the HDR-versions of this movie do not show this problem!

11

Yeah, there’s a few newer releases that I saw today and yesterday - will give one of those a try :slight_smile: Thanks.
'nuff said :wink:

If the new file with different source and HDR looks better, we’ll know it was file specific.

12

Buy the UHD BluRay, Rip and then test it. If it plays fine its the encode/file.

2 Likes
13

It’s not the encoding…it’s the source.

Something was wrong with the original source HDR, and that propagated through the encodes. I don’t know exactly what happened (bad rip, etc.), but it was on everything (full BD, remux, encodes) from that source.

14

Wich movie title are we talking about?

15

Endgame.

16

Try the bluray instead of this webrip, maybe it is better encoded.

17

UHD BluRay of endgame was fine (HDR etc).

18

A post was removed for violating forum rules.

19

Was the canadian bluray which is identical to the us bluray :slight_smile: