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gmarty/DVD.js

Playing DVD in JavaScript for the sake of interoperability
Source code at GitHub http://gmarty.github.io/jsconf-2014-talk-play-dvd-in-js/
gmarty/DVD.js.json
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  "createdAt": "2014-01-14T13:33:16Z",
  "defaultBranch": "converter",
  "description": "Playing DVD in JavaScript for the sake of interoperability",
  "fullName": "gmarty/DVD.js",
  "homepage": "http://gmarty.github.io/jsconf-2014-talk-play-dvd-in-js/",
  "language": "TypeScript",
  "name": "DVD.js",
  "pushedAt": "2018-01-24T22:30:30Z",
  "stargazersCount": 167,
  "topics": [],
  "updatedAt": "2025-11-25T14:34:26Z",
  "url": "https://github.com/gmarty/DVD.js"
}

DVD.js

Section titled “DVD.js”

Playing DVD in JavaScript for the sake of interoperability

Talk

Section titled “Talk”

For more details on this project, have a look at the video of the talk I gave at JS Conf 2014.

The slide deck is also available.

Approach

Section titled “Approach”

This branch, named converter, contains an encoder of DVD to web format. For the attempt to play DVD on-the-fly, look into the master branch.

I ported libdvdread and libdvdnav to JavaScript. Several passes are applied to the content of a DVD to make it playable on a browser using native features:

  1. IFO files are parsed to JSON
  2. Chapters are generated as WebVTT
  3. NAV packets are extracted to JSON
  4. The buttons size/position are saved to CSS
  5. The menu still frames are saved to PNG (to be done)
  6. VM commands are compiled into JavaScript
  7. The video is encoded to Webm

Install

Section titled “Install”

Clone the repo locally and install the dependencies with:

Terminal window
$ npm install
$ bower install
$ grunt install

You’ll need to install the latest version of ffmpeg.

Then, compile the TS files to JavaScript with:

Terminal window
$ grunt

If you see a message saying ‘Done, without errors’ then the compilation to JavaScript was successful.

Create the folder that will hold your DVD, e.g.:

Terminal window
$ cd /home/user/
$ mkdir dvd
$ pwd
/home/user/dvd

Then update the dvdPath property of the config file in config/app.json to match the path to the folder created above.

Copy an unprotected DVD into a subfolder of dvd/ (e.g. in /home/user/dvd/Sita Sings the Blues/)

To convert the DVD, do:

Terminal window
$ node bin/convert /home/user/dvd/Sita Sings the Blues/

Wait for a while (reencoding video takes a loooooong time).

Start the web server:

Terminal window
node bin/http-server

Finally, point your browser to:

http://localhost:3000/

… and enjoy your DVD from your browser!

Support

Section titled “Support”

All browsers supporting the following features:

  • <video> tag
  • <track> tag and WebVTT.

FAQ

Section titled “FAQ”

Do you need help?

Section titled “Do you need help?”

Yes, please, use it, open issues and send pull requests.

Why doing that?

Section titled “Why doing that?”

There are several reasons:

  • I am frustrated with the current VOD offer and I don’t want to buy movies or TV series to watch on my mobile if I already own the DVD.
  • I noticed I’m listening to my CD more often now that I’m using Google Play Music and am looking for a similar solution for my DVD.

Why don’t you just convert the video for the web?

Section titled “Why don’t you just convert the video for the web?”

There’s more in DVD than the video. You can select audio track, subtitles, navigate through the menu, play interactive game or browse a gallery of still images.

Why not using Emscripten?

Section titled “Why not using Emscripten?”

I wanted to understand the logic in the JavaScript.

Also I don’t do C and wasn’t even able to compile the programs coming with libdvdread and libdvdnav on my PC… ^^;