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Victor_Dev's avatar
Victor_Dev
Channel Surfer
5 years ago
Solved

Roku 4K playback issue ( no video only Audio)

I am implementing 4K playback in the client application. I am able to play both SDR & HDR 4K content in my 

Roku - Premiere 4K Streaming(Model: 3920R) in TCL TV. But when the same code is tested in LG 43UM7300PUA 2160P SMART 4K and 4660X - Roku Ultra, No video only audio.

Any idea what's the issue?

Is this issue with the device?

Any suggestions are appreciated!

3 Replies

  • RokuJonathanD's avatar
    RokuJonathanD
    Community Moderator

    Hi Victor_Dev 

    Can you provide the code where you implementing video playback so we can try to help identify the issue?

    • Victor_Dev's avatar
      Victor_Dev
      Channel Surfer
      function setVODDataOnResponse() as void
        top = m.top
      
        if top.response.AvailableMedia <> invalid AND top.response.AvailableMedia.Count() > 0
      
          
          
          videoContent = createObject("RoSGNode", "ContentNode")
      
          mediaData = top.response.AvailableMedia[0]
      
          m.content = top.response
          ' ******************************************
          ' * parse:  DRM
          ' ******************************************
          ' get content url
          videoContent.url = mediaData.ContentUrl
          ' check DRM
          if mediaData.LicenseRequestToken <> invalid then
            videoContent.EncodingType = "PlayReadyLicenseAcquisitionAndChallenge"
             ' logic to get enckey and removed as shared outside
            videoContent.EncodingKey = encKey
          end if
      
          ' ******************************************
          ' * parse videoContent:  streamformat
          ' *   need to determine the type of steam because the Roku player is not smart enough to figure it out and will error
          ' ******************************************
          streamformat = determineStreamFormatFromUrl(videoContent.url)
          
          videoContent.streamformat = streamformat
          
          m.video.content = videoContent
      
          m.video.control = "play"
          m.timer.control = "start"
          m.progressUpdateTimer.control = "start"
          top.isBusy = true
      
          if m.top.response.mediaType = "preview"
            m.ffwd.speeds = [0, 5, 15, 30]
            m.ffwd.displayTag = ["", "2x", "4x", "8x"]
          end if
      
          if top.contentType = "vod"
            ' setup progressBar
            attachVodPlayerProgressBar()
            attachTrickPlayProgressBar()
            m.progressBar.model = top.response
            m.trickPlayBar.model = top.response
            ' setup player data
            '    end if
      
        end if
      end function

      RokuJonathanD  - here is the code I used. Both HD and SD content works on both devices. Only 4k content has issue in one as there is no image only audio.

      • Victor_Dev's avatar
        Victor_Dev
        Channel Surfer

        RokuJonathanD  - The issue is resolved after bunch of restarts, a factory re-boot, changed HDMI ports