format

The format you specify determines whether Elastic Transcoder generates an embedded or sidecar caption for this output.

• Valid Embedded Caption Formats:

• for FLAC: None

• For MP3: None

• For MP4: mov-text

• For MPEG-TS: None

• For ogg: None

• For webm: None

• Valid Sidecar Caption Formats: Elastic Transcoder supports dfxp (first div element only), scc, srt, and webvtt. If you want ttml or smpte-tt compatible captions, specify dfxp as your output format.

• For FMP4: dfxp

• Non-FMP4 outputs: All sidecar types fmp4 captions have an extension of .ismt