#98 Sony Bravia JPEG 4:4:4 subsampling support

open
5
2016-01-06
2013-05-11
nona99
No

Sony Bravia TV's (like my KDL-46EX725) only support JPEG images with YCbCr 4:2:2 or 4:2:0 chroma subsampling. JPEG YCbCr 4:4:4 is not supported If you edit pictures with Photoshop or PaintShop and save them with 4:4:4 chroma subsampling (which is the default in most cases) the pictures will not render on the Bravia TV's.

Attached is a hack which solves the issue by transcoding the images. Additionally the images are resized to the screen resolution (the resizing of the Bravia sucks!)

Discussion

  • shuthichi

    shuthichi - 2015-12-21

    How can i use this hack in my raspberry pi?

     
  • Shrimpkin

    Shrimpkin - 2015-12-25

    'man patch' for more info.

    patch < minidlna_bravia_jpeg_444_hack.patch
    
     
  • shuthichi

    shuthichi - 2015-12-29

    Sorry, I'm not a developer. I have used the raspberry pi package. Is it possible to use the patch here? Or do i have to use the patch first, then compile everything and bring it to the raspberry?

     
  • Shrimpkin

    Shrimpkin - 2016-01-06

    No need to develop, just compile. Check on how to compile software for your distro and platform, then apply patch.

     

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