srt2vtt

Encoding-aware .srt (SubRip Text) to .vtt (WebVTT) converter.

Handles CP1252 and UTF8/16/16LE/32/32LE.

Quick Example

var fs = require('fs');
var srt2vtt = require('srt2vtt');

var srtData = fs.readFileSync('captions.srt');
srt2vtt(srtData, function(err, vttData) {
  if (err) throw new Error(err);
  fs.writeFileSync('captions.vtt', vttData);
});

For Node.js, use npm:

npm install srt2vtt

Documentation

It assumes input srtBuffer has the default CP1252 encoding, unless a UTF8, UTF16, UTF16LE, UTF32, or UTF32LE BOM is found at the start.

If the defaultCodepageOverride is given, that codepage is used instead of CP1252.

Callback is assumed to be a function(error, vttBuffer).

Arguments

• srtBuffer - Buffer containing the .srt file.
• defaultCodepageOverride (optional) - int number of codepage to use instead of CP1252 when no UTF BOM is found. This must be a numeric value, so e.g. give 1256 for codepage CP1256 (Arabic).
• callback - function(error, vttBuffer), in which error will be null if the conversion were successful, or an error message if not successful. vttBuffer is a UTF8-encoded buffer containing the converted WEBVTT file data.

A command-line utility that expects a .srt file in stdin, will transform it to .vtt, and send it to stdout.

Example

$ node bin/convert.js < mighty_jack.srt > mighty_jack.vtt