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RPi + Other Software 4K HDR and WASHOUT FIXING

Discussion in 'Hardware Support' started by Claudio Branco, 8 August 2019.

?

Are you able to obtain correct lighting with HDR content ?

  1. No

  2. Yes

  3. Yes, with HDFury products.

  4. Yes, with another workaround

Results are only viewable after voting.
  1. Claudio Branco

    Claudio Branco Cranco

    Messages:
    80
    Hardware:
    RPi3
    Hey guys !

    This issue gives me headaches..

    What are the solutions for HDR content? Which for me currently results in incorrect colors and washed out image.

    I can currently watch 4k without problems.

    What are the current solutions available for stripping the HDR signal ? Is it only the HDFury products ?

    Thanks!
     
  2. vinnikkk

    vinnikkk New Member

    Messages:
    3
    Hardware:
    RPi2
    I'd love to get a solution for it also! Maybe some software tuning?
     
  3. Claudio Branco

    Claudio Branco Cranco

    Messages:
    80
    Hardware:
    RPi3
    For the time being, unfortunately, only with HDFury products...
    I've been saving over the last few months and should be receiving mine in the following days!
    Happy days!
     
  4. thebatfink

    thebatfink New Member

    Messages:
    26
    Hardware:
    RPi1/Zero, +Arduino
    Hi. Did you receive the HDFury device? Does it really work with everything you can throw at it with hyperion?

    Thanks
     
  5. mpsamuels

    mpsamuels New Member

    Messages:
    3
    It's not quite perfect but at a fraction of the price of the HDFury boxes I've settled for this HDMI splitter https://www.amazon.co.uk/XOLORspace...y-supports/dp/B07MFL4M94?tag=hyperionpro02-21

    I've got 4k and HDR10 from a Virgin Media set top box working fine.

    What doesn't work is Dolby Vision or HLG so I find that, for example,the Netflix and Prime Video Apps on the set top box default to HDR10 for their HDR content instead of offering Dolby Vision and any HLG channels (BT Sport Ultimate and Virgin TV Ultra HD are the only ones I have access to) show on my TV in 4k but without HDR. For me, for now, that's a decent enough compromise as HLG content is in short supply in the UK and I'm willing to use HDR10 instead of Dolby Vision if it means my ambilight setup 'just works' and gets the wife's approval rather than having to mess on with different settings on a regular basis.

    If I ever particularly want to watch something using HLG or use Dolby Vision rather than HDR10 there's meant to be a button on the splitter I can push to stop the output to my RPi which then allows HLG or Dolby Vision to my TV but removing the HDMI cable going to the RPi works too.
     
  6. Claudio Branco

    Claudio Branco Cranco

    Messages:
    80
    Hardware:
    RPi3
    Greetings

    Are you sure that the splitter is removing HDR data ? Have you seen the image that you're feeding Hyperion?

    I ask because I purchased one (2nd splitter I bought ) and it didn't remove HDR data.

    I do have the DIVA
    And it's worth it
    Had I known and would've naught it first
    It's my 4 splitter and the only one that does what it says
     
  7. Claudio Branco

    Claudio Branco Cranco

    Messages:
    80
    Hardware:
    RPi3
    HDR blows all budgets out the window

    But I was already so deeply in ...
    A year later and still can't consider my ambilight finished
     
  8. chonka

    chonka New Member

    Messages:
    4
    Hardware:
    RPi3
    I'm not totally aware of how HDR metadata works, but if a source device is outputting in HDR only, how does an HD Fury or some other device reinterpret that data as SDR?
     
  9. jochenf

    jochenf Active Member

    Messages:
    142
    hi,

    take a look in the german area of the forum, there is at least a workaround for the pale colors. ;)

    https://hyperion-project.org/threads/hyperion-hdr-sdr-grabber-problematik.3690/#post-16172

    v4l2-ctl allows you to adjust the color saturation of the captured image in real time.

    Code:
    v4l2-ctl --list-ctrls
    shows the options that the capture driver offers.

    with
    Code:
    v4l2-ctl --set-ctrl saturation=255
    for instance, the color saturation can be increased. now the led's shows correct colors for the desaturated hdr image.

    regards

    Michael
     
    • Like Like x 1
  10. chonka

    chonka New Member

    Messages:
    4
    Hardware:
    RPi3
    Thanks! That seemed to have have really changed the HDR without having to oversaturate the SDR.