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154 lines
4.5 KiB
Markdown
154 lines
4.5 KiB
Markdown
# Silvermine VideoJS Quality/Resolution Selector
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[](https://travis-ci.org/silvermine/videojs-quality-selector)
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[](https://coveralls.io/github/silvermine/videojs-quality-selector?branch=master)
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[](https://david-dm.org/silvermine/videojs-quality-selector)
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[](https://david-dm.org/silvermine/videojs-quality-selector?type=dev)
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## What is it?
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A plugin for [videojs](http://videojs.com/) versions 6+ that adds a button to the control
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bar which will allow the user to choose from available video qualities or resolutions.
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## How do I use it?
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There are three primary steps to use this plug-in: [(1) including](#includingrequiring),
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[(2) providing sources](#providing-video-sources), and [(3) adding the component the to
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`controlBar`](#adding-to-the-player). Please see the following for information on each
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step.
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### Including/Requiring
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#### Using `<script>` tag
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The minified JS file can come from a downloaded copy or a CDN. When including
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it, make sure that the `<script>` tag for the plugin appears _after_ the
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include for [video.js](http://videojs.com/) (note that this plugin will look
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for `videojs` at `window.videojs`).
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There is an example of this in
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[`docs/demo/index.html`](./docs/demo/index.html).
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##### From local file
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```js
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<script src="./path/to/video.min.js"></script>
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<script src="./path/to/silvermine-videojs-quality-selector.min.js"></script>
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```
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##### From [`unpkg`](https://unpkg.com/@silvermine/videojs-quality-selector/)
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```js
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<link href="https://unpkg.com/@silvermine/videojs-quality-selector/dist/css/quality-selector.css" rel="stylesheet">
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<script src="./path/to/video.min.js"></script>
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<script src="https://unpkg.com/@silvermine/videojs-quality-selector/dist/js/silvermine-videojs-quality-selector.min.js"></script>
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```
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#### Using `require`
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When using NPM/Browserify, first install the plugin.
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```bash
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npm install --save @silvermine/videojs-quality-selector
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```
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For `videojs` to use the plug-in, the plugin needs to register itself with the instance of
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`videojs`. This can be accomplished by:
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```js
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var videojs = require('videojs');
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// The following registers the plugin with `videojs`
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require('@silvermine/videojs-quality-selector')(videojs);
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```
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Remember to also add the CSS to your build. With most bundlers you can:
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```js
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require('@silvermine/videojs-quality-selector/dist/css/quality-selector.css')
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```
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### Providing video sources
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Sources can be provided with either the `<source>` tag or via the `src` function on the
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instance of a `video.js` player.
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#### Using `<source>`
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```html
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<video id="video_1" class="video-js vjs-default-skin" controls preload="auto" width="640" height="268">
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<source src="https://example.com/video_720.mp4" type="video/mp4" label="720P">
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<source src="https://example.com/video_480.mp4" type="video/mp4" label="480P" selected="true">
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<source src="https://example.com/video_360.mp4" type="video/mp4" label="360P">
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</video>
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```
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#### Using `player.src()`
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```js
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player.src([
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{
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src: 'https://example.com/video_720.mp4',
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type: 'video/mp4',
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label: '720P',
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},
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{
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src: 'https://example.com/video_480.mp4',
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type: 'video/mp4',
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label: '480P',
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selected: true,
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},
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{
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src: 'https://example.com/video_360.mp4',
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type: 'video/mp4',
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label: '360P',
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},
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]);
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```
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### Adding to the player
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There are at least two ways to add the quality selector control to the player's control
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bar. The first is directly adding it via `addChild`. For example:
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```js
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videojs('video_1', {}, function() {
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var player = this;
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player.controlBar.addChild('QualitySelector');
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});
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```
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The second option is to add the control via the player's options, for instance:
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```js
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var options, player;
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options = {
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controlBar: {
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children: [
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'playToggle',
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'progressControl',
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'volumePanel',
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'qualitySelector',
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'fullscreenToggle',
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],
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},
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};
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player = videojs('video_1', options);
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```
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## How do I contribute?
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We genuinely appreciate external contributions. See [our extensive
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documentation](https://github.com/silvermine/silvermine-info#contributing) on how to
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contribute.
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## License
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This software is released under the MIT license. See [the license file](LICENSE) for more
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details.
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