Jellyfin: Jellyfin transcodes/burns in subtitles unnecessarily

Created on 28 Dec 2019 · 3Comments · Source: jellyfin/jellyfin

Media Info of the file
.mkv container, h264 video, ac3 audio, ASS subtitles

Jellyfin recognizes TV with the "LG Smart TV" profile. The TV can handle .mkv, h264 video stream and ac3 audio stream, but not with ASS subtitles. SRT style subs are supported (and even listed in the Jellyfin profile). When playing via DLNA, Jellyfin insists on burning in the subtitles (transcoding video). This isn't necessary as a much, much speedier option exists to simply convert only the ASS subs to SRT subs:

ffmpeg -i in.mkv -c copy -c:s srt out.mkv

Server System (please complete the following information):

OS: Docker
Jellyfin Version: 10.4.3
Hardware settings & device: VAAPI Synology DS218+
Reverse proxy: no
Other hardware notes: none

Client System (please complete the following information):

Device: LG OLED65C7P
OS: webOS
Client: webOS

media playback stale

Source

maemigh

Most helpful comment

Well ASS->SRT is a lossy conversion. So that is why it's not done.

EraYaN on 1 Jan 2020

👍3

All 3 comments

Well ASS->SRT is a lossy conversion. So that is why it's not done.

EraYaN on 1 Jan 2020

👍3

Note that ASS is now supported in master (most likely would be available in 10.5 when it hits), but there were reports of it crashing WebOS browser.

What WebOS version do you have btw?

JustAMan on 13 Jan 2020

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