Add support to embed closed caption data in the stream (for Twitch, and others).
Either providing Speech to text natively, using a plugin, or allowing other (third-party) means to provide the data to embed.
This will enable the use of native closed captioning available on several streaming platforms such as Twitch and others.
For example Twitch supports the following:
CEA-708/EIA-608 embedded in the video elementary stream as described in ATSC A/72 (SEI user_data). This format is common among television broadcast encoders.
CEA-708/EIA-608 transmitted via RTMP onCaptionInfo script/AMF0 tag. This format is common among Internet broadcast encoders and media servers such as Elemental Technologies and Wowza.