Amazon MediaConvert · Schema

HlsCaptionSegmentLengthControl

Set Caption segment length control (CaptionSegmentLengthControl) to Match video (MATCH_VIDEO) to create caption segments that align with the video segments from the first video output in this output group. For example, if the video segments are 2 seconds long, your WebVTT segments will also be 2 seconds long. Keep the default setting, Large segments (LARGE_SEGMENTS) to create caption segments that are 300 seconds long.

BroadcastingMedia ProcessingMedia

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-mediaconvert/refs/heads/main/json-schema/mediaconvert-api-hls-caption-segment-length-control-schema.json",
  "title": "HlsCaptionSegmentLengthControl",
  "description": "Set Caption segment length control (CaptionSegmentLengthControl) to Match video (MATCH_VIDEO) to create caption segments that align with the video segments from the first video output in this output group. For example, if the video segments are 2 seconds long, your WebVTT segments will also be 2 seconds long. Keep the default setting, Large segments (LARGE_SEGMENTS) to create caption segments that are 300 seconds long.",
  "type": "string",
  "enum": [
    "LARGE_SEGMENTS",
    "MATCH_VIDEO"
  ]
}