win7 cannot play hevc files

Discussion in 'Home Theater PCs' started by luv2liv, Dec 18, 2017.

  1. luv2liv

    luv2liv Diamond Member

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    i have a 4k video file encoded with HEVC. my win7 simply refuses to play it.
    i got the latest VLC, even k-lite mega pack as seen in this video https://www.youtube.com/watch?v=X69kG8yxyoA. after that mega pack, i tried using media player classic and win media player and still nothing. the video would look like garbled up distortion. i tried using Handbrake to convert to something else but the result is a bigger file size with same distortion.
    the strange thing is....my 1.5 years old Samsung 4k TV has no problem playing the video file! wow.

    pc spec:
    nvidia gtx 960 4gig ram
    16 gig ram
    i7 6800k cpu
     
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  3. sdifox

    sdifox No Lifer

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    What does codec info in vlc say it is?
     
  4. luv2liv

    luv2liv Diamond Member

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    stream 2
    type: video
    codec: mpeg-h part2/hevc (h.265) (hevc)
    language: english
    resolution: 3840x2176
    display resolution: 3840x2160
    frame rate: 30.000300
    decoded format: planar 4:2:0 YUV 10-bit LE
     
  5. sdifox

    sdifox No Lifer

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    are you playing local or over wifi?
     
  6. luv2liv

    luv2liv Diamond Member

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    playing local, direct from int sata hard drive, VLC just shows distortion.
    at first, i thought the file was corrupt.
    so i copied the file over to usb. inserted into TV and it works fine.
     
  7. sdifox

    sdifox No Lifer

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    As far as I can tell, VLC doesn't use external codec at all. I'll try it on my win7 machine once I get home and put a 4k mkv on usb drive and test.
     
  8. Elixer

    Elixer Lifer

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    Yeah, VLC don't use external decoders, it is all baked in.

    Once you have the file opened in VLC, go to the menu option "Tools" then "Codec information" and see what it tells you there. If possible, post a screenshot of that dialog.
     
  9. sdifox

    sdifox No Lifer

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    see post #3

    looks ordinary enough for me
     
  10. luv2liv

    luv2liv Diamond Member

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    did you get a chance to see if your VLC can play HEVC encoded 4k movies in win7?
     
  11. sdifox

    sdifox No Lifer

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    sorry, didn't get to. will try tonight
     
  12. JeffMD

    JeffMD Golden Member

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    You are asking the wrong question, your VLC "IS" decoding hevc, otherwise you would get NO video window. Sounds more like the video output selected is incompatible (video driver is probably telling VLC it is a valid video mode but is infact broken).
     
  13. sdifox

    sdifox No Lifer

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    I tried it and the message window is saying my machine is too slow to decode hevc 4k without lag. hevc is cpu intensive.
    tried on two systems.
     
    #12 sdifox, Dec 20, 2017
    Last edited: Jan 2, 2018
  14. luv2liv

    luv2liv Diamond Member

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    well, im happy to say i encode a 1080p HEVC file and VLC was able to play it without any issues.
    guess the problem was with those 4k HEVC files :(