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WebVTT to TX3G

Register name used to load filter: vtt2tx3g
This filter may be automatically loaded during graph resolution.

This filter rewrites unframed WebVTT to TX3G / QT Timed Text (binary format)

Unframed WebVTT packets consist in single cues:

  • cue payload as packet payload
  • prefix as packet string property vtt_pre
  • cue ID as packet string property vtt_cueid
  • cue settings as packet string property vtt_settings
  • packet timing contains the cue timing (start and duration)

Options

fontname (str): default font

fontsize (uint, default: 18): default font size

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