rPi4+LE9.1.501 washed out colors during 4K HDR10+ play

    as the title says, while playing some HEVC HDR10+ (based on MediaInfo data) the colors looked washed out (if I pause the movie, the fanart picture that pops up in the bottom left along with other controls has proper colors)

    I downloaded as a separate test a free 4K sample (1m of Elysium) that MediaInfo doesn't show as being HDR and that one plays fine

    the TV is an LG OLED E8, I tried both enabling or disabling the HDMI UHD deep colors from the TV settings, no improvement

    I've read in a separate thread a few others complained about similar (?) issues a few months ago but no complains recently so I'm hoping there's a fix to my issue

    Hi,


    no fix yet. The RPI4(Hardware) supports HDR, but the Software(Kodi, libreelec) wont support it, atm. We all have to wait for a LE release based on a a 5.X Kernel.

    A Quick Solution is to buy a FTV Stick, sideload kodi and enjoy HDR Movies

    Sorry for reviving this topic..

    i just installed LibreElec 10.0.1 on my RPi4 and it seems that HDR10 media still plays with washed-out colors..

    i found this thread on the Kodi forums that seems to indicate the Rpi4 will never be able to (properly) play HDR10 content:

    pi 4 HEVC grey overlay and faded color.

    is that right?

    Thank you!!

    Edited 2 times, last by petersphilo: Forgot to include the link ;-) (November 7, 2021 at 12:12 PM).

    Quote from popcornmix

    HDR10 encoded media played on a HDR10 capable display is supported.

    HDR10 encoded media played on a non-HDR10 capable display will not have correct colours.

    interestingly enough, a HDR10 encoded media played on a non-HDR10 capable display on Firetv stick plays okay. so it’s RPi4 limitation?

    Quote from makima

    interestingly enough, a HDR10 encoded media played on a non-HDR10 capable display on Firetv stick plays okay. so it’s RPi4 limitation?

    The HDR colour space is much larger than SDR, so there's no perfect way to do this, but tonemapping is an algorithm that squashes the range down in a way that looks okay. I suspect the Firetv stick has hardware support for this, but the Pi doesn't.

    Thank you for the info!

    Indeed, my display is not HDR-capable..

    I'll stick to SDR content..

    i'm also exploring the idea, when no other solution is available, of transcoding content using Handbake's BT.709 Colorspace filter..

    My understanding is that using the BT.709 Colorspace filter is basically turning content into SDR..

    i know it's a less than ideal solution, but most 4k content is HDR by default

    Thank you again for the answers!!

    You are my heroes!!