TE
TechEcho
Home24h TopNewestBestAskShowJobs
GitHubTwitter
Home

TechEcho

A tech news platform built with Next.js, providing global tech news and discussions.

GitHubTwitter

Home

HomeNewestBestAskShowJobs

Resources

HackerNews APIOriginal HackerNewsNext.js

© 2025 TechEcho. All rights reserved.

HDMI Musings: YCbCr color subsampling, Dolby Vision MEL/FEL, and and5V injection

39 pointsby colinprinceabout 2 months ago

4 comments

PaulHouleabout 2 months ago
Nice to see there&#x27;s a good videophile blog in town -- the world has really need one since audioholics got whiney.<p>I have one of those Shields connected to a trash TV and have a low level of satisfaction with it compared to an XBOX ONE on the other TV now that I&#x27;m running Plex. It just has so many little annoyances like the controller seems to discharge itself between uses every time, an Android interface that almost makes sense, etc. It sits next to a used Blu-Ray player so I can play discs.<p>I am thinking about replacing it with a used PS4 or maybe a PS5 so I can get a great Plex client that also plays discs, the used PS4 costs less than a new Shield -- even though I&#x27;m disinvesting from Xbox in favor of steam I&#x27;m sure there are still some PS4 exclusive games I&#x27;d like to play, though it is late enough in the lifecycle that the PS5 doesn&#x27;t seem crazy to me and it would be future proof in terms of supporting a future high-end TV.
ccdayabout 2 months ago
&gt; So how bright do we want&#x2F;need our displays to be? How many bits? For me, even a 500 nits TV in a dark room is enough viewing from about 10&#x27; away.<p>The advantage of high peak brightness (eg &gt; 1000 nits) is brighter small regions such as specular highlights. 500 nits full field is eye-searing.
评论 #43501435 未加载
评论 #43499190 未加载
nimishabout 2 months ago
When is someone going to properly reverse engineer Dolby Vision to make a DV to HDR10+ translator
评论 #43502284 未加载
CrossVRabout 2 months ago
One note missing from the YCbCr color space explanation is that, while HDMI does support YCbCr, the spec requires all video sources to also offer an RGB stream. Thus it is not possible to use HDMI for a device that can only output YCbCr.
评论 #43500169 未加载