Plex DVR strips "Teletext Subtitles" from ts

Server: Debian Linux 9.6, plexmediaserver_1.14.1.5488
DVR: HDHomeRun HDHR5-2DT (Australia version)

I’ve done a bit of searching in the forums on this, but I haven’t found anyone posting the specific issue I’m facing.

It seems subtitles on most Australian broadcasts are in “Teletext Subtitle” format. To show this, I extracted 30 seconds of TV (from channel #13, 10HD) wget http://hdhomerun:5004/auto/v13?duration=30 and ran it through mediainfo. As well as the Video and Audio, mediainfo shows the following stream:

Text
ID                                       : 575 (0x23F)-801
Menu ID                                  : 1572 (0x624)
Format                                   : Teletext Subtitle
Language                                 : English

However, when I record a show through Plex, or watch it live via the DVR, the subtitles are unavailable. mediainfo shows no Text component in the .ts file saved for a recording.

The DVR setting “CONVERT VIDEO WHILE RECORDING” is set to “Off”, however I note that even though this is the case, I can see a Plex Transcoder process running when I watch live TV or record a broadcast. So it seems it is doing some transcoding, even if just a stream copy.

Tautulli says the following is happening:
STREAM Transcode (Speed: 1.2)
CONTAINER Transcode (MPEGTS MP4)
VIDEO Transcode (H264 1080p H264 1080p)
AUDIO Transcode (AC3 5.1 AAC Stereo)
SUBTITLE None

Does plex support “Teletext Subtitles” format for Closed Captioning?

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.