[HN Gopher] HDMI Musings: YCbCr color subsampling, Dolby Vision ...
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       HDMI Musings: YCbCr color subsampling, Dolby Vision MEL/FEL, and
       and5V injection
        
       Author : colinprince
       Score  : 18 points
       Date   : 2025-03-27 19:49 UTC (3 hours ago)
        
 (HTM) web link (archimago.blogspot.com)
 (TXT) w3m dump (archimago.blogspot.com)
        
       | PaulHoule wrote:
       | Nice to see there's a good videophile blog in town -- the world
       | has really need one since audioholics got whiney.
       | 
       | 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'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.
       | 
       | 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'm disinvesting
       | from Xbox in favor of steam I'm sure there are still some PS4
       | exclusive games I'd like to play, though it is late enough in the
       | lifecycle that the PS5 doesn't seem crazy to me and it would be
       | future proof in terms of supporting a future high-end TV.
        
       | nimish wrote:
       | When is someone going to properly reverse engineer Dolby Vision
       | to make a DV to HDR10+ translator
        
       | CrossVR wrote:
       | 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.
        
       | ccday wrote:
       | > So how bright do we want/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' away.
       | 
       | The advantage of high peak brightness (eg > 1000 nits) is
       | brighter small regions such as specular highlights. 500 nits full
       | field is eye-searing.
        
         | kllrnohj wrote:
         | A proper light controlled, dark ambient room is a _lot_ more
         | impactful for highlights than a higher peak brightness is
        
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       (page generated 2025-03-27 23:01 UTC)