Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.


Go Back   Doom9's Forum > Video Encoding > New and alternative video codecs

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old 2nd February 2022, 07:11   #10  |  Link
Registered User
Join Date: Aug 2009
Posts: 241
Originally Posted by FranceBB View Post
Only by Sony cameras like the Sony A7 III as it's technically not compliant.
TL;DR you cannot go on air in 8bit in UHD.
I had a second look at HLG3 footage, and indeed it looks as flat as S-log, so most SDR viewers probably won't be able to stomach it if you were to feed it to a broadcast H.264 stream. So even if you could software-upgrade HDR TVs to recognise HLG3 somehow, it's still out of the question due to how bad it looks on SDR displays.

I guess most H.264 HD channels will do tone-mapped content (from HDR) and call it a day. Which means the handling of tone-mapped content will be a big differentiator for consumer HDR TVs for the years to come, much like the quality of upscaling and denoising of mpeg2 SD channels was a big differentiator for early consumer HD TVs (and still is in some countries like the UK, which has 12 HD channels and several dozen Mpeg2 SD ones, all of them at crappy bitrates).

Originally Posted by FranceBB View Post
There are already UHD channels in Europe.
For instance, at Sky we've been airing in UHD BT2020 SDR in H.265 4:2:0 25 Mbit/s 10bit planar since 2015 and in UHD BT2020 HDR HLG 4:2:0 25 Mbit/s 10bit planar since 2018. And not just Sports, but also Cinema (so movies).

The problem ain't UHD, the problem is the fact that Hotbird is overcrowded and bitrate is expensive as f...
Terrestrial is the big problem IMO. Many of us in the EU and UK live in rented apartments and cannot drill holes through walls and mount satellite dishes outside.

A terrestrial DVB-T2 mux can fit a grand total of 3 UHD channels. Indeed, any countries doing UHD trials are broadcasting just 2-3 UHD channels on one mux, and I doubt they will manage to free up more than one mux due to the 4G and 5G spectrum releases (and terminating H.264 is out of the question considering some countries are still facing resistance when trying to terminate mpeg2). So, I disagree, UHD bitrate requirements are very much a problem. The terrestrial broadcasting world should have waited for VVC so they can at least get 6 UHD channels per mux. If you though HD was a failure on terrestrial, wait and see how UHD will do.

Last edited by kurkosdr; 2nd February 2022 at 07:42.
kurkosdr is offline   Reply With Quote

vvc, x266

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +1. The time now is 09:53.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.