Skip to content


Flussonic Media Server can recognize DVB subtitles, read teletext and closed captions in MPEG-TS and pass them in the format WebVTT for HLS and TTML for DASH.

For DASH, the output subtitles formats are WebVTT and TTML, for HLS — WebVTT only.

Flussonic also passes the TTML subtitles in MSS streams - output MSS streams will have subtitles in the TTML format if the input stream has them.

Flussonic supports teletext for analog video — it can both receive teletext from VBI (vertical blanking interval) and broadcast teletext within VBI. This feature allows you to obtain teletext from streams captured from an SDI card or send teletext with streams pushed to an SDI card.

In this section: