HEVC content working?

Discussion in 'General TV Discussions Forum' started by bobby2, Jun 28, 2015.

  1. bobby2

    bobby2
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    Has anyone got any HEVC content working on their panel?

    I have a 55EC930V that is specced to take HEVC encoded content, but so far, I have been unable play back via DNLA streaming, or USB playback. H264 works fine in both contexts of course.

    Is this simply a firmware issue, a particular encoding option ... ?

    The LG official specs indicate HEVC is supported (http://www.lg.com/uk/tvs/lg-55EC930V/technical-specifications#), but after downloading/creating some sample files, I get nothing.
     
  2. bobby2

    bobby2
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    Beginning to worry that nobody has ever had HEVC/x265 content working on their panel.
     
  3. oANUBISo

    oANUBISo
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    HEVC works on the Sony Android TV's
    In fact most my TV show are HEVC encoded.
     
  4. bobby2

    bobby2
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    Thanks for responding, but how are these delivered to the TV? USB, networked storage ....
     
  5. oANUBISo

    oANUBISo
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    USB HDD
     
  6. bobby2

    bobby2
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    So I have tried multiple downloaded 'x265/HEVC' files via USB, and never got any to play ... is there anything specific about the files you could tell me? Maybe do a 'mediainfo' on one that works?
     
  7. oANUBISo

    oANUBISo
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    As I said it maybe Kodi that can play them as the native player plays them slow
    It's definitely software related.
     
  8. bobby2

    bobby2
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    OK, some good news - after todays update the TV now copes with streamed (over DLNA) HEVC content. The working examples are the HEVC encoded 1080p/720p Big Buck Bunny streams downloaded and placed on my media server. Both are transport streams - effectively akin to 'broadcast' streams, but look perfect delivered over the network.

    Elecard Group | Download videos was where I got the sample videos.
     
    Last edited: Sep 22, 2015
  9. Z34

    Z34
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    Curious to see if you were able to play other hevc ts files . I also found the bunny video which works well but all others I've tried either slightly stuttered (in fact ts seems to stutter with h264 too) or had loads of macroblocking issues ?
     
  10. bobby2

    bobby2
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    I have managed to encode some of my own stuff that works wonderfully using handbrake and x265 encoding, this is the output from 'mediainfo' for the x265/264, note the bit rates, same quality (for me):
    ---- x265
    Complete name : 10min-x265.mkv
    Format : Matroska
    Format version : Version 2
    File size : 97.0 MiB
    Duration : 8mn 48s
    Overall bit rate : 1 540 Kbps
    Movie name : The Movie
    Encoded date : UTC 2015-11-10T19:03:18Z
    Writing application : HandBrake 20151110154413-598a40f-master 2015111001
    Writing library : Lavf56.1.0

    Video
    ID : 1
    Format : V_MPEGH/ISO/HEVC
    Codec ID : V_MPEGH/ISO/HEVC
    Duration : 8mn 48s
    Width : 1 280 pixels
    Height : 540 pixels
    Display aspect ratio : 2.35:1
    Frame rate mode : Constant
    Frame rate : 24.019 fps
    Default : Yes
    Forced : No

    --- x264
    Complete name : 10min-x264.mkv
    Format : Matroska
    Format version : Version 2
    File size : 173 MiB
    Duration : 8mn 48s
    Overall bit rate : 2 754 Kbps
    Movie name : The Movie
    Encoded date : UTC 2015-11-10T20:19:42Z
    Writing application : HandBrake 20151110154413-598a40f-master 2015111001
    Writing library : Lavf56.1.0

    Video
    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : [email protected]
    Format settings, CABAC : Yes
    Format settings, ReFrames : 4 frames
    Codec ID : V_MPEG4/ISO/AVC
    Duration : 8mn 48s
    Width : 1 280 pixels
    Height : 540 pixels
    Display aspect ratio : 2.35:1
    Original display aspect ratio : 2.40:1
    Frame rate mode : Constant
    Frame rate : 24.019 fps
     
  11. Z34

    Z34
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    Thank you - were you actually able to play the .mkv on your 55EC930V ? on mine, only the .TS files would play (poorly) with HEVC. I've otherwise used ffmpeg and mediacoder to encode HEVC as I have a GTX970 with hardware encoder which is so much faster (about 3x fps vs 0.7 ish with just CPU). I've used a number of tools (Elecard StreamEye, mediainfo and even some Transport stream analyzers) to understand why the bunny.ts HEVC file works well but not those encoded with ffmpeg or mediacoder... nothing particularly obvious... I'll give it a shot with x265
     
  12. bobby2

    bobby2
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    I basically use CLI Handbrake (was a nightly release I think, but latest does it fine). That uses ffmpeg, and I create an MKV, I havent been able to get any mkv-HEVC working, but I can convert to a TS file (ffmpeg again) and it streams fine over my network to the TV. The same file fails as an MKV.

    I suspect its getting treated like a broadcast stream - and then it may need a software update to decouple the streams for playback via mkv container.
     
  13. Z34

    Z34
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    I was able to encode with Handbrake / x265 - the file plays smoothly on my tv which is perfect. The encoding takes forever however, so I really need to make this work with nvenc now - via mediacoder or ffmpeg

    Interestingly, Mediacoder also has the x265 encoder (version 1.8xxx vs 1.5xxx for Handbrake) - initially the output didn't play well (stuters slightly) with default settings. I have managed to more or less align the parameters with the default ones in Handbrake and got it to work without stutter - not sure yet what exact parameter triggered the stuttering but will be testing further.

    Edit: x265 with Mediacoder works okay too.
     
    Last edited: Jan 29, 2016
  14. Z34

    Z34
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    eventually solved the problem - the stream generated did not include access unit delimiters in the hevc stream which apparently is needed for that tv to play hevc files correctly - see other forum here for resolution with ffmpeg
    which
    apparently
    apparently
     

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