Формат субтитров VTT

Файл

WEBVTT

intro
00:00:01.000 --> 00:00:04.000
Hello there.

00:00:04.500 --> 00:00:08.000 align:start position:10%
Second line with <i>italics</i>.

Что в нём

2 cues, 2 lines of text

  00:00:01.000 → 00:00:04.000
    Hello there.
  00:00:04.500 → 00:00:08.000
    Second line with italics.   [italic ×1]
    [settings align:start position:10%]

Outside the cues:
  header     "WEBVTT"

Файл

WEBVTT - boundary sample

NOTE a comment
spanning two lines

STYLE
::cue { color: red }

REGION
id:fred
width:40%

00:01.000 --> 00:03.000
Hours-less timecode with <b>bold</b> and <v Roger>a voice tag.

00:05.000 --> 00:04.000
End before start.

NOTE between cues

00:07.000 --> 00:09.000
&nbsp; entities stay literal.

00:10.000 --> oops
Unreadable end time.

NOTE trailing

Что в нём

3 cues, 3 lines of text

  00:00:01.000 → 00:00:03.000
    Hours-less timecode with bold and <v Roger>a voice tag.   [bold ×1]
  00:00:05.000 → 00:00:05.001
    End before start.
  00:00:07.000 → 00:00:09.000
    &nbsp; entities stay literal.

Outside the cues:
  header     "WEBVTT - boundary sample"
  blocks     NOTE ×3, STYLE, REGION

Reported while reading — repaired or skipped, never silently:
  1 × blocks that were neither a cue nor a NOTE/STYLE/REGION block (they were skipped)
  1 × cues whose end time was not after their start time (they were given a 1ms duration)