Handle subtitles, when non-zero tfdt with mediafilesegmenter

[cchafer]

I'm trying to read a video encoded with ffmpeg and segmented with mediafilesegmenter.
Everything works great on any video player I tried, except videoJS. When I read my video, subtitles are displayed with a 10 seconds shift.

The reason is that mediafilesegmenter sets the start time in the video streams at about 10 seconds and this can't be changed.
It can be confirmed with a simple ffprobe on the segments.
This seems to be "a feature", as stated by Apple (Is there a reason mediafilesegment… | Apple Developer Forums).

I looked in the documentation, but didn't find any option that could be turn on/off or set, to handle this specific case.
Is there any solution ?

Thank you !