This tutorial shows how to create a JavaScript application that uses the VideoViewer
to perform playback of a video file.
Overview | |
---|---|
Summary | This tutorial covers how to play a video file in a HTML5 JavaScript application. |
Completion Time | 15 minutes |
Visual Studio Project | Download tutorial project (1 KB) |
Platform | JS Web Application |
IDE | Visual Studio Code - Client |
Development License | Download LEADTOOLS |
Try it in another language |
|
The JS LEADTOOLS Multimedia Video Viewer Control contains many advanced features that simplify decoding, processing and playing back media from different sources such as files and network streams by passing them as URI to the player.
Before working on the Playback a Video File - HTML5 JavaScript tutorial, get familiar with the basic steps of creating a project by reviewing the Add References and Set a License - HTML5 JavaScript tutorial.
This tutorial makes use of http-server
, a console command for running a static file server. To install http-server
first install Node.js
and then install http-server
.
Create a project folder that contains the following:
index.html
fileapp.js
filelib
folderLEADTOOLS
folderThe references needed depend upon the purpose of the project. This tutorial requires the following JS files:
They can be found here: <INSTALL_DIR>\LEADTOOLS21\Bin\JS
Leadtools.js
Leadtools.Multimedia.js
Make sure to copy both files to the lib
folder and to import them in the index.html
file.
The License unlocks the features needed for the project. It must be set before any toolkit function is called. For details including tutorials for different platforms, refer to Setting a Runtime License.
There are two types of runtime licenses:
Note
Adding LEADTOOLS references and setting a license are covered in more detail in the Add References and Set a License - HTML5 JavaScript tutorial.
Open your project's index.html
file. Add the below code to import the LEADTOOLS dependencies, LEADTOOLS logic, and set the container for the VideoViewer
:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Playback a Video File</title>
<!--Import LEADTOOLS Dependencies-->
<script type="text/javascript" src="./lib/Leadtools.js"></script>
<script type="text/javascript" src="./lib/Leadtools.Multimedia.js"></script>
<!--Import Project Dependencies-->
<script type="text/javascript" src="./app.js"></script>
<!--Configure Style for Video Viewer Container-->
<style>
.container {
height: 600px;
width: 600px;
border: 4px solid black;
margin-top: 10px;
}
</style>
</head>
<body>
<!-- DIV with button to load video from URI -->
<div>
<button id="loadButton">Load Video</button>
</div>
<!-- DIV to use as the container for the LEADTOOLS video viewer -->
<div class="container" id="root">
</body>
</html>
Open your app.js
file. Input the code below to create the VideoViewer
and playback a sample MP4
file using its URI:
window.onload = function () {
// Set License
var licenseUrl = "./LEADTOOLS/LEADTOOLS.lic.txt";
var developerKey = "REPLACE_WITH_KEY_CONTENTS";
lt.RasterSupport.setLicenseUri(licenseUrl, developerKey, function (
setLicenseResult
) {
// Check the status of the license
if (setLicenseResult.result) {
console.log("LEADTOOLS client license set successfully");
} else {
var msg = "LEADTOOLS License is missing, invalid or expired\nError:\n";
console.log(msg);
alert(msg);
}
});
// Create a video viewer control in the root Div element
this.videoViewer = new lt.Multimedia.VideoViewer({ root: document.getElementById("root") });
// Load a video from URI sample
document.getElementById('loadButton').onclick = () => {
this.videoViewer.setVideo('http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4');
}
};
Open the command line console, then cd into the root of the project. Use the following command to run a static file server: http-server
The server should start and run on http:localhost:8080
. A message should appear in the console indicating all the ports that the server is available on.
Open your browser and navigate to: http://localhost:8080/index.html
This tutorial showed how to playback a video file using the VideoViewer
object.