Subforge

Appearance

TTML, DFXP, SMPTE-TT ​

TTML is the W3C timed text standard. Subforge supports TTML and its profiles DFXP and SMPTE-TT.

Timing ​

  • Clock time (HH:MM:SS.mmm) and offset time are supported

Styling and layout ​

  • Parses <styling> and <layout> sections
  • Supports style references and region placement
  • Region references are stored on event.region

Parsing ​

ts
import { parseTTML, toTTML, parseDFXP, toDFXP, parseSMPTETT, toSMPTETT } from 'subforge/ttml'
import { unwrap } from 'subforge/core'

const doc = unwrap(parseTTML(ttmlText))

Serialization options ​

ts
import { toTTML } from 'subforge/ttml'

const ttml = toTTML(doc, {
  xmlns: true,
  includeHead: true,
  format: 'clock'
})