Package Exports
- videojs-record
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Readme
Video.js Record
A Video.js plugin for recording audio/video/image files.
Installation
Use bower (bower install videojs-record
) or
npm (npm install videojs-record
) to install
the plugin or download and include the dependencies manually.
Dependencies
The plugin has the following mandatory dependency:
- Video.js - HTML5 media player that provides the user interface.
When recording audio and/or video you also need:
- RecordRTC.js - Adds support for audio/video recording.
And when recording audio-only, the following dependencies are also required:
- wavesurfer.js - Provides a navigable waveform for audio files. Comes with a microphone plugin used for realtime visualization of the microphone audio signal.
- videojs-wavesurfer - Transforms Video.js into an audio-player.
Usage
Start by including the video.js stylesheet and library:
<link href="http://cdnjs.cloudflare.com/ajax/libs/video.js/4.12.5/video-js.css" rel="stylesheet">
<script src="http://cdnjs.cloudflare.com/ajax/libs/video.js/4.12.5/video.js"></script>
If you're going to record audio and/or video you need to include RecordRTC as well:
<script src="http://cdn.WebRTC-Experiment.com/RecordRTC.js"></script>
The videojs-record plugin automatically registers itself when the script is included on the page:
<script src="videojs.record.js"></script>
Add the extra stylesheet for the plugin that includes a custom font with additional icons:
<link href="videojs.record.css" rel="stylesheet">
Audio/video/image
When recording both audio/video, video-only or an image, include a
video
element:
<video id="myVideo" class="video-js vjs-default-skin"></video>
Check out the full audio/video, the image or the video-only examples.
Note that recording both audio and video in a single WebM file is currently only supported in Mozilla Firefox >= 29. On other browsers the resulting file only contains video data.
Audio-only
When recording audio-only, also include the wavesurfer.js library and
the videojs-wavesurfer and microphone plugins. Make sure to place this before
the videojs.record.js
script.
<script src="http://wavesurfer.fm/dist/wavesurfer.min.js"></script>
<script src="http://wavesurfer.fm/dist/plugin/wavesurfer.microphone.min.js"></script>
<script src="videojs.wavesurfer.js"></script>
And define an audio
element:
<audio id="myAudio" class="video-js vjs-default-skin"></audio>
Check out the full audio-only example.
Options
Configure the player using the video.js
options,
and enable the plugin by adding a record
configuration to plugins
. For
example:
var player = videojs("myVideo",
{
controls: true,
loop: false,
width: 320,
height: 240,
plugins: {
record: {
image: false,
audio: false,
video: true,
maxLength: 5
}
}
});
The available options for this plugin are:
Option | Type | Default | Description |
---|---|---|---|
image |
boolean | false |
Create a snapshot image. |
audio |
boolean | false |
Include audio in the recorded clip. |
video |
boolean | false |
Include video in the recorded clip. |
maxLength |
float | 10 |
Maximum length of the recorded clip. |
audioBufferSize |
float | 4096 |
The size of the audio buffer (in sample-frames per second). Legal values: 256, 512, 1024, 2048, 4096, 8192 and 16384. |
audioSampleRate |
float | 22050 |
The audio sample rate (in sample-frames per second) at which the AudioContext handles audio. Legal values are in the range of 22050 to 96000. |
debug |
boolean | false |
Enables console logging for debugging purposes. |
Methods
Methods for this plugin:
Method | Description |
---|---|
isRecording |
Returns a boolean indicating whether recording is active or not. |
getRecordType |
Get recorder type as string, either image_only , audio_only , video_only or audio_video . |
destroy |
Destroys the recorder instance and children. |
Events
Plugin events that are available on the video.js player instance:
Event | Description |
---|---|
deviceReady |
The webcam or microphone is ready to use. |
deviceError |
User doesn't allow the browser to access the webcam and/or microphone. Check player.deviceErrorCode for the specific error code. |
startRecord |
User pressed the record or camera button to start recording. |
stopRecord |
User pressed the stop button to stop recording. |
finishRecord |
The recorded stream or image is available. Check player.recordedData for the Blob data of the recording. |
Get recorded data
Listen for the finishRecord
event and obtain the recorded data from the
player.recordedData
attribute for further processing:
// user completed recording and stream is available
player.on('finishRecord', function()
{
// the recordedData object contains the stream data that
// can be downloaded by the user, stored on server etc.
console.log('finished recording: ', player.recordedData);
});
Customizing controls
To disable and hide specific controls, use the video.js children
option:
children: {
controlBar: {
children: {
// hide fullscreen control
fullscreenToggle: false
}
}
},
Localization
This plugin supports multiple languages. Each language has it's own file
(found in the lang
directory) that contains the translated text.
Using a different language, for example Dutch (nl
), is done by including
the Video.js language file and the plugin's language file:
<script src="videojs-record/dist/lang/nl.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/video.js/4.12.5/lang/nl.js"></script>
And setting the Video.js player's language
option:
language: "nl"
Adding support
for an additional language is done by adding a new file with a filename that
consists of the countrycode and the .json
extension, eg. fr.json
. The
build script compiles the JSON into a usable language file,
eg. fr.js
. Check the Video.js wiki for a
list of supported countrycodes.
Pull requests to add more languages to this plugin are always welcome!
More features using other plugins
The Video.js community created
lots of plugins
that can be used to enhance the player's functionality. Plugins actually
tested with videojs-record
:
- videojs-persistvolume -
Saves user's volume setting using
localStorage
, but falls back to cookies if necessary.
Development
Install grunt-cli
:
sudo npm install -g grunt-cli
Install dependencies using npm:
npm install
Or using bower:
bower install
Build a minified version:
grunt
Generated files are placed in the dist
directory.
License
This work is licensed under the MIT License.