Video.js Crop Plugin

The Video.js Crop Plugin enhances video playback by adding visual cropping functionality. It enables users to interactively select a specific crop area within the video by dragging a visual overlay.

Compatibility

This plugin version is compatible with Video.js v8.x.

Getting Started

Prerequisites

Make sure you have Video.js installed in your project before using this plugin.

Installation

Include the Video.js library and the videojs-crop files in your HTML file:

<!-- Video.js library -->
<link href="https://vjs.zencdn.net/8.6.1/video-js.css" rel="stylesheet"/>
<script src="https://vjs.zencdn.net/8.6.1/video.min.js"></script>

<!-- Video.js Crop plugin -->
<link href="https://cdn.jsdelivr.net/gh/Teyuto/videojs-crop@main/src/videojs-crop.min.css" rel="stylesheet"/>
<script src="https://cdn.jsdelivr.net/gh/Teyuto/videojs-crop@main/src/videojs-crop.min.js"></script>

Usage

Initialize Video.js as you normally would and add the Video.js Crop Plugin:

// Create a video player
var player = videojs('my-video');

// Activate the Video JS Crop plugin
player.cropPlugin({
    aspectRatios: ['9:16', '16:9', '3:4', '1:1'],
    defaultAspectRatio: '9:16',
    onCropChange: (cropParams) => {
        console.log('Crop Parameters:', cropParams);
    }
});

// Optional: Handle event to monitor crop changes
onCropChange: (cropParams) => {
    console.log('Crop Parameters:', cropParams);
}

Make sure to replace 'my-video' with your actual video player ID.

Recommended Video Formats

It is recommended to use video/mp4 format for the cropping functionality to ensure compatibility and performance. However, if you wish to use different formats such as HLS, ensure that you select the maximum version of the video or one that matches the encoding settings you will be using.

Options

Configuration Options

Option	Type	Description
aspectRatios	Array	Array of aspect ratios available for cropping.
defaultAspectRatio	String	The default aspect ratio to be selected on load.
onCropChange	Function	Callback function triggered on crop change.

Crop Parameters Explained

The onCropChange callback provides an object containing the following parameters:

Parameter	Description
aspectRatio.real	The real aspect ratio of the selected crop (e.g., 1.77 for 16:9).
aspectRatio.string	The selected aspect ratio as a string (e.g., "16:9").
position.player	The dimensions and position of the crop in the player’s coordinate system.
position.player.w	Width of the crop overlay in the player.
position.player.h	Height of the crop overlay in the player.
position.player.x	X position of the crop overlay in the player.
position.player.y	Y position of the crop overlay in the player.
position.video	The dimensions and position of the crop in the video’s coordinate system.
position.video.w	Width of the crop overlay in the video.
position.video.h	Height of the crop overlay in the video.
position.video.x	X position of the crop overlay in the video.
position.video.y	Y position of the crop overlay in the video.

Use the cordinates of the video and not the player to make the crop for example with ffmpeg.

Example

Check the provided HTML examples/index.html file for a working example.

License

This project is licensed under the MIT License - see the LICENSE.md file for details.

---