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Old 27th September 2020, 00:37   #41  |  Link
videoh
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Quote:
Originally Posted by VictorLS View Post
it's some strange...
Here's sample 20200926-153844_RTL UHD Austria.ts (232 MB) https://yadi.sk/d/_4Oo1_awZEQr4g
What is strange about it? It's HLG and so will play "OK" as SDR.

BTW, sorry to say but your English is borderline understandable. Try full sentences, each expressing a single coherent thought.
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Old 27th September 2020, 21:18   #42  |  Link
VictorLS
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Quote:
Originally Posted by videoh View Post
What is strange about it? It's HLG and so will play "OK" as SDR
You can just compare 20190511-152944_RTL UHD_flag.ts (67MB) https://yadi.sk/i/985DVw34OHQrrA I've uploaded in this thread before with present 20200926-153844_RTL UHD Austria.ts (232 MB) https://yadi.sk/d/_4Oo1_awZEQr4g (20190511-130113_ARENA HD_flag.ts (38MB) https://yadi.sk/i/HiuZ5Rb2RKkc0g SDR for control) with EVR (not EVR-CP to avoid any post-processing in renderer) in MPC-HC and if you have good monitor and eyes I believe you'll see difference as minimum in red color in top left corner
Btw today's F1 race translation fully prove I was right - in some seconds before adv someone was switching from non-HLG to HLG and vise versa - I hope to cut and upload an example(s) in days.
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Originally Posted by videoh View Post
BTW, sorry to say but your English is borderline understandable.
You're welcome but i.e. when I gave just link on this thread to a smart Russian guy Iron_Butterfly (I even didn't new he's shader writer that time) he fully understand me and at first correct not working MPC-VR's correction_hlg.hlsl shader (so modern versions of MPC-BE do HLGtoSDR with i.e. EVR-CP but red becomes some rose due to wrong and non-adjustable constants) and then wrote new working shader I successfully use in app SmartDVB or MPC-HC. Here's shader with my constant 1000.0&300.0 Convert HLG to SDR.hlsl (6 КБ) https://yadi.sk/d/4Ugay1550LPg1Q - in original was 1000.0&80.0
Even nevcairiel well understand I ask him but he implement in LAV Video Decoder useful thing (like NVIDIA CUVID h265 10bit decoding or switchable CUVID DXVA processing for playing "broken" streams in Win7x64 with hardware accelerations without artifacts on nVIDIA videocards) in years but not all frame decoding - I agree he calls simpler "skipping" (this function is in ffmpeg) he don't want to implement despite of it's very easy to do, proved by Aleksoid1978 and MPC Video Decoder.
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Originally Posted by videoh View Post
Try full sentences, each expressing a single coherent thought.
It's hard to write hard enough things with simple sentences
If you or someone can't understand whole sentence try to read without () and then in () and summarize them in your brains because I believe each word I write is important

Last edited by VictorLS; 19th December 2020 at 16:16.
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Old 28th September 2020, 00:32   #43  |  Link
videoh
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Originally Posted by VictorLS View Post
I believe each word I write is important.
That's reassuring. Thank you.
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Old 29th September 2020, 05:35   #44  |  Link
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Here's a sample I promised to upload 20200927-141013_RTL UHD Austria_.ts (108 MB) https://yadi.sk/i/FInnqG3BbHt5SQ - when watching with EVR (so without processing) between 5 and 6 seconds red Ferrari becomes some orange (so video beginning from 6th second becomes ordinary HLG so shader and i.e. EVR-CP become necessary to watch Ferrari in ~ normal color on SDR - so non-BT.2020 - monitor).
One more thing - rectangle STRECKENINFO GP VON RUSSLAND without shader is some orange too but see letters carefully - with EVR and in VLC they are looking well but with shader+EVR-CP and in mpv letters with visible artifacts.
PS. On my PC EVR-CP some times stutters while playing RTL UHD but VLC with OpenGL always fluent - can someone confirm that?

Last edited by VictorLS; 29th September 2020 at 05:40.
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Old 29th September 2020, 22:48   #45  |  Link
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Originally Posted by VictorLS View Post
Here's a sample I promised to upload
Here's one more vise versa sample 20200927-151917_RTL UHD Austria_.ts (58 MB) https://yadi.sk/i/n2vgJY5IZGg_Fg
without HLG processing at 8th second i.e. orange adv banner "Emirates FLY BETTER" becomes red.

Last edited by VictorLS; 29th September 2020 at 23:15.
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Old 5th October 2020, 08:17   #46  |  Link
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I've watched 20200927-141013_RTL UHD Austria_.ts and 20200927-151917_RTL UHD Austria_.ts on Samsung QLED 43" supported even AV1 4K 60fps playing and it shows wrong overcontrasted and oversaturated video while non-HLG in that files and normal video when HLG in same videos.
PS. Letters on STRECKENINFO GP VON RUSSLAND looks like in VLC so good enough (but not ideal).
Quote:
Originally Posted by VictorLS View Post
Here's two shaders with my constants 1000.0&300.0 and 150.0&0.5 https://transfiles.ru/l99ql - in original was 1000.0&80.0 and 100.0&0.5
Btw I've reupload that two shaders to more permanent place Shaders.7z (2 KB) https://yadi.sk/d/-DUfaqlY6LfxtA

Last edited by VictorLS; 5th October 2020 at 08:32.
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Old 16th December 2020, 23:16   #47  |  Link
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MPC Video Renderer (MPC-VR) v0.4.10.1542 https://yadi.sk/d/X0EVMKP4TcmnHQ/Old/0.4.10 (0.4.10.1542 is last version let turn HLG processing off in MPC-VR and well use HLGtoSDR shader instead) shows HLG on SDR even better than shaders on my own.
With MPC Video Renderer colors are less saturated but nearer to SDR.

Last edited by VictorLS; 5th February 2021 at 19:37.
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Old 6th January 2021, 09:31   #48  |  Link
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New shader from smart Russian guy Iron_Butterfly HLG-BT2100toSRGB.hlsl (3 KB) https://yadi.sk/d/ExnEkJR-sgms1g
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Old 8th March 2021, 23:44   #49  |  Link
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Just tried Daum PotPlayer 210127 https://daumpotplayer.com/download/ and it can show HLG such as HLG-BT2100toSRGB.hlsl in MPC-HC with internal in PotPlayer Direct3D9 Video Renderer
With Default.dsf skin HLG processing can be easily switched on/off by pressing HDR in a bottom while playing HLG file like 20190526-164153_RTL UHD.ts (687 MB) https://yadi.sk/d/6_vZCglWkP1xxw

Last edited by VictorLS; 8th March 2021 at 23:47.
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Old 20th June 2021, 09:55   #50  |  Link
kasper93
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Quote:
Originally Posted by VictorLS View Post
Due to huhn's "madVR doesn't support HLG"
HLGw/oProcessing (undersaturated and undercontrasted):
Regardless of HLG it looks like you are using madVR wrong. Desaturation comes form BT.2020, not HLG. I figured I will clear one thing for all of you guys.

madVR does not convert gamut to your display if you do not ask it to. You have to specify you display "calibration" parameters. Even if it is not calibrated, BT.709@2.2 is probably very close to your display Or better use 3DLUT...

And this apply to all non bt.709 content, not only HLG. Here is comparison with correct and incorrect configuration.



This board is not a best example, but you can clearly see the difference when BT.2020 is converted to BT.709... With EURO2020 HLG content looks ok, as it was designed to looks reasonably well on SDR devices.

Last edited by kasper93; 20th June 2021 at 10:03.
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Old 20th June 2021, 18:35   #51  |  Link
VictorLS
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Originally Posted by kasper93 View Post
madVR does not convert gamut to your display if you do not ask it to. You have to specify you display "calibration" parameters. Even if it is not calibrated, BT.709@2.2 is probably very close to your display Or better use 3DLUT...
Because I haven't alternative of madVR (it permanently some stutters on my old and slow computer, EVR and MPC-VR shows same files fluently) I began to search 3DLUT for ~ correct HLGtoSDR conversion but didn't find it that time - your research is great.
Quote:
Originally Posted by kasper93 View Post
This board is not a best example, but you can clearly see the difference when BT.2020 is converted to BT.709... With EURO2020 HLG content looks ok, as it was designed to looks reasonably well on SDR devices.
If you read (you can translate if don't understand Russian language) and download files I've uploaded from there https://forum.ixbt.com/topic.cgi?id=73:5256:3663#3663 until now you'll see 20210611-232433_TRT 4K.ts isn't HLG and don't need any color conversion (but it's 25 Hz, so SVP is appreciated), 20210612-164807_TRT 4K.ts without HLGtoSDR conversion (in i.e. MPC-VR 0.4.10.1542) looks washed out on SDR monitor, 20210613-161108_TRT 4K.ts without HLGtoSDR conversion looks better than 20210612-164807_TRT 4K.ts but with HLGtoSDR conversion looks better than without one - then I've done some screenshots madVRvsMPC-VRcomparison.7z (18 MB) https://disk.yandex.ru/d/ur54NnTmgdFzKA where MPC-VR's HLGtoSDR conversion is much more accurate than madVR and latest MPC-VR5 without conversion (~ the same result) I guess mean showing SDR layer of HLG video on SDR monitor.
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