VTT Test File

Here is a bunch of .vtt file in the vtt files/ folder

All of .vtt file follow this specification: WebVTT: The Web Video Text Tracks Format

Purpose

Testing

Who can benefit from this?

Developer
Developer who needs to write a program to deal with .vtt file.

What kind of benefit?

Save time

How to use this?

If you are writing a program that parse .vtt file. and you want to test if the program can handle all kind of variation of vtt file. Just grab vtt file from the vtt files/ folder and use them for testing.

Why I created this

I built a Desktop app called Tern - Subtitle File Translator It can read .srt .ass .vtt and translate them into another language. (For example, French to English) It's like a Google Translator Toolkit replacement

I have to parse .vtt file. To make sure my program works with all kind of .vtt file. I create/collected these.

I open-source it so everyone can save time.

Package: node-webvtt

I did a quick test on npm package: node-webvtt You can run test with

git clone https://github.com/1c7/vtt-test-file.git
cd vtt-test-file/
npm install

node test-node-webvtt.js

Side note

If you are using youtube-dl, for example:

youtube-dl https://www.youtube.com/watch?v=T7Rv4tGRlfc --skip-download --sub-format vtt --write-sub

You would get a vtt file The Future of Artificial Intelligence - Crash Course AI #20-T7Rv4tGRlfc.en.vtt

Which contain these text

WEBVTT
Kind: captions
Language: en

00:00:00.240 --> 00:00:05.410
Hey everyone, Im Jabril and welcome to
the final episode of Crash Course AI.

Let's focus on this part

Kind: captions
Language: en

This Kind: and Language: Is not in the WebVTT standard (I am pretty sure about that, but if I am wrong, let me know) I ask about that on youtube-dl Issue

Clearly it's from Youtube. Youtube is not following WebVTT standard