Plex for Tivo update for 1080p

Discussion in 'TiVo Home Media Features & TiVoToGo' started by jcthorne, Sep 27, 2015.

  1. jcthorne

    jcthorne Well-Known Member

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    This was posted today by Plex:

    Sept 25, 2.4.25
    This release is only for TiVo devices.
    Support TiVo Roamio OTA device.

    Direct playback of MKV+H264 is supported up to 1080p and MP4+HEVC is supported up to 2160p.
    Supports HTTPS communication with Plex Media Servers
    We've reported issues to TiVo regarding sluggish navigation performance and troubles seeking/resuming MP4+HEVC videos.



    I am not at home today to test this but will be tomorrow. Others try it? 2160p? Is this really Tivo Bolt?
     
  2. moyekj

    moyekj Well-Known Member

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    I verified version 2.4.25 on my TiVo Roamio Pro and played a 1080p/24 movie and my TV does say its playing as 1080p/24 when I initiate playback via Plex.

    Video format is mp4 container with 1080p/24 H.264 level 4.1 video and 6 channel AC3 audio and is transcoded by Plex server even though I did change to allow H.264 level 4.1 via TiVo Plex client settings. So I still don't like it that TiVo compatible formats get transcoded. The transcoding quality is pretty good but means unnecessary load on Plex server.

    EDIT: I'll try remuxing the above to mkv to see if it makes any difference.

    EDIT: No difference. Remuxed above to mkv container and still gets transcoded. So still not much interest in using Plex for me because of this.
     
    Last edited: Sep 27, 2015
  3. jcthorne

    jcthorne Well-Known Member

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    I cannot get it to send 1080 video. The settings in the Tivo client for video still max out at 4mbps and 720p. Plex server will transcode anything above those settings.

    Where did you set up for 1080 video on the tivo plex?
     
  4. moyekj

    moyekj Well-Known Member

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    For TiVo client, what do have for Settings--Video? I have:
    Allow Direct Play = enabled
    Allow Direct Stream = enabled
    Maximum H.264 Level = 4.1
     
  5. jcthorne

    jcthorne Well-Known Member

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    Yes, I have those set but right above those are settings for 'Local Quality, Remote Quality and Online Quality and all three max out at 4 Mbps 720p. No option for 1080i or 1080p and higher bitrates. What are you seeing for these settings?
     
  6. moyekj

    moyekj Well-Known Member

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    I'm seeing the same as you for those. My TV states it's getting 1080p/24 when I play above video, however when I look at Task Manager on Plex server I do see a transcoding running with minw=1280, minh=720, crf=18, so it would appear that it's only 1280x720 @24 fps. So perhaps what's happening is the TiVo is getting 24 fps video and upscaling to 1920x1080 (even though it's only supposed to pass through 24 fps video)? For TiVo video settings I have only 1080p/60 and 1080p/24 pass through selected as valid outputs, so most of the time my TV is receiving upscaled 1080p/60 from the Roamio Pro.
     
  7. jcthorne

    jcthorne Well-Known Member

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    Where is Task Manager in Plex server? I cannot see the transcode details but what you are describing seems to indicate it is indeed sending 720p video after transcoding with the tivo upscaling for some reason.

    I submitted a question on the plex forums on how to use the new feature to get 1080 on tivo. What I suspect is that this is a new version for Bolt, not Roamio as it references 2160p which we know the Roamio hardware will never support.
     
  8. moyekj

    moyekj Well-Known Member

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    I'm running Plex server on Windows. So I just bring up Windows Task Manager while playing a show from Plex client and then look at the Transcoder detailed arguments under "Processes" tab ("Command Line" column in Task Manager) to see what it's doing. There probably is a Plex log file somewhere too, but easier just to look at Windows task manager. If you don't already have "Command Line" column enabled in Task Manager you should turn it on using View--Select columns...
     
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  9. jcthorne

    jcthorne Well-Known Member

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    Thanks. I am seeing exactly the same as you. Appreciate the help. Will post up if anything comes back from Plex.
     
  10. siratfus

    siratfus Member

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    Their community is not too helpful. The people who know stuff over there seems stingy with giving out info. I get more Plex answers here.
     
  11. jcthorne

    jcthorne Well-Known Member

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    So true but hope springs eternal....
     
  12. jcthorne

    jcthorne Well-Known Member

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    Just following up on this subject with the new Tivo Bolt.

    Plex on the Bolt supports full bitrate 1080p H.264 level 4.1 video, DD 5.1 audio in an mp4 container. Streamed to the Bolt without transcoding.

    And the menus are MUCH snappier.
     
  13. pritch55

    pritch55 New Member

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    What is the max Mbps for 1080p on the Bolt?

    Thanks,
    -Brandon
     
  14. jcthorne

    jcthorne Well-Known Member

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    Plex does not show an upper limit. The setting is 'original' but you are limited to the Mbps numbers allowed by a level 4.1 h.264 stream.

    Now that I think about it, we really don't know if 4.1 is an upper limit for Bolt, it was for Roamio. Bolt may go higher.

    We need to do some testing to find the new upper limits. So far Plex has been able to direct stream anything I could push to the Roamio via pytivo.
     
  15. sirfergy

    sirfergy Member

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    I also got transcoding with Plex on my Mini and Roamio. I guess it doesn't really support 1080p yet?
     
  16. jcthorne

    jcthorne Well-Known Member

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    On mini and Roamio the upper limit is 720p and 4Mbps. If the stream is higher res or higher bitrate, it will transcode. Only Bolt supports the higher resolutions due to memory restrictions in the Opera browser.
     
  17. portishead

    portishead New Member

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    I tried streaming a couple films on my Bolt. Some transcoded some didn't. I want to figure out the requirements for direct play. It does work very well though but not a fan of transcoding.
     
  18. jcthorne

    jcthorne Well-Known Member

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    If you will post the mediainfo for a file that transcoded, I can try and point out the problem. It could be plex settings or the elements in the file.
     
  19. portishead

    portishead New Member

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    I realized you can login into the Plex server, and it will tell you right there what is transcoding. It seems almost every file will direct play, or direct stream which is fine since no loss in quality. AC3 will direct play, but DTS will transcode. Not really a big deal to me, I am satisfied with that. I'll look into some of the files that will not play, or that Plex is transcoding.

    Also I set the Plex settings on the Bolt to L5.1, and was able to direct play L5.1 files. I played several files up to 20 Mbps no problem.
     
    Last edited: Oct 10, 2015
  20. SlickVik

    SlickVik New Member

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    Plex does not seem to direct play HEVC at the moment - I even tried this particular 4K HEVC file in a MP4 container - it direct streams the audio portion but transcodes video to H264 which stutters. According to the Plex release notes it should be able to direct stream this:

    mega.nz/#!5FNDybgY!u0IARmwnTJXGeSVoTEECrPPkjnsrtEfAelvptQVGLHY
     

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