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Help/Watching and the player/Formats and compatibility

Subtitle formats mtivi reads

Text and image subtitles, where each comes from, and which ones can be translated or restyled.

1 min readUpdated 20 Sep 2026

Subtitles reach the player from three places: your service’s own tracks, tracks inside the file, and files you supply.

Text subtitles

Format Notes
SRT The most common. Loads as a separate file or from inside a video
WebVTT Standard on HLS streams
ASS and SSA Styled subtitles, common on anime and fan releases
TTML Used by some services and broadcast sources

Text subtitles can be restyled, nudged in time, and translated.

Image subtitles

PGS, VobSub and DVB subtitles are pictures, not words. They display correctly, and that is all they can do: they cannot be resized, recolored or translated, because there is no text in them to work with.

When a stream carries nothing at all, mtivi can create subtitles from the audio on the device, live channels included, and then translate those. See Create subtitles when a stream has none.

Tracks that are listed but grayed out

mtivi checks each track before offering it and grays out the ones that turn out to be empty or broken, rather than letting you pick one that shows nothing.

See also Add your own subtitle file and Change how subtitles look.

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