DeveloperSpace
Converts elex data (to vtt or plain text) to be integrated into live video HTML5 text track, with video js or similar for live streaming, for instance with video js captions plugin for roll-on mode
Golang library to convert SRT subtitle into WebVTT
teletext closed captioning decoder (produces subtitles in SRT format from transport stream)
Closed captioning sample app
Builder for captions and subtitles in WebVTT format