Caption formatting not being preserved

tvdownloader

For Discovery+ (this may be the case for other sites too) selecting “Extract original format” on subtitles does not save the original subtitle file. It seems like StreamFab processes or converts the original files which removes all formatting.

Settings used:

I used inspect element to find the original .vtt subtitle file given from Discovery+:
https://akm.dplus.us.prd.media.max.com/gcs/9506492f-8743-45cd-9806-5bc0c6feec33/t/593665/t0/1.vtt

Example “.ttml” file as downloaded from StreamFab, the exact same How It’s Made episode:

As you can see, StreamFab removes color and position information from the subtitles, which I would like to preserve.
I’m also specifically interested in the “X-TIMESTAMP-MAP=LOCAL” lines in the subtitles because those indicate when commercials should be inserted, which is useful for my own purposes.

Tested with How It’s Made: https://play.discoveryplus.com/show/ef833c95-bddf-4204-8e34-bc231327ec4a

Thank you!

Stan001

Unless someone else comes along who has DiscoveryPlus, I doubt there is much a user can do.
Good to report here anyway, but also report to SF so they can have developer look into it.
https://streamfab.com/contact.htm

In a real-world situation, it should save it as it is. It looks like, for some reason, they run it through something like a subtitle editor or similar and thus remove formatting.

ADDED: There is a subtitle_processor.dll in the StreamFab program folder.

tvdownloader

Thank you. I’ve submitted a ticket directly to StreamFab about this too.

Stan001

Fix: A problem that VTT subtitle format is not preserved when downloading the original subtitle format from Discovery+.