150 lines
6.0 KiB
HTML
150 lines
6.0 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>wavesurfer.js | Media Element Example</title>
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<link href="data:image/gif;" rel="icon" type="image/x-icon" />
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<!-- Bootstrap -->
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<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet">
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<link rel="stylesheet" href="../css/style.css" />
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<link rel="stylesheet" href="../css/ribbon.css" />
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<link rel="screenshot" itemprop="screenshot" href="https://katspaugh.github.io/wavesurfer.js/example/screenshot.png" />
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<!-- wavesurfer.js -->
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<script src="../../dist/wavesurfer.js"></script>
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<script src="../../dist/plugin/wavesurfer.regions.js"></script>
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<!-- Demo -->
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<script src="main.js"></script>
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<!-- highlight.js for syntax highlighting in this example -->
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<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/default.min.css">
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<script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
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<script>hljs.initHighlightingOnLoad();</script>
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</head>
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<body itemscope itemtype="http://schema.org/WebApplication">
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<div class="container">
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<div class="header">
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<ul class="nav nav-pills pull-right">
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<li><a href="/"><i class="glyphicon glyphicon-home"></i></a></li>
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</ul>
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<h1 itemprop="name">Existing Media Element Example</h1>
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</div>
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<div id="demo">
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<div id="waveform">
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<!-- Here be the waveform -->
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</div>
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<div class="controls">
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<button class="btn btn-primary" data-action="play">
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<i class="glyphicon glyphicon-play"></i>
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Play
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/
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<i class="glyphicon glyphicon-pause"></i>
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Pause
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</button>
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</div>
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<video src="../media/demo_video.mp4" type="video/mpeg"></video>
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</div>
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<div class="row marketing">
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<h3>How to Enable the Fallback</h3>
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<hr />
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<p>
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You can choose to use an existing
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HTML5 audio or video element manually. Simply set the <code>backend</code>
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option to <code>"MediaElement"</code> and pass the media element as the first
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argument to wavesurfer.load(). Include an array of peaks as the second
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argument, the Web Audio API will not be used to render the peaks.
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</p>
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<p>
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<pre><code>var wavesurfer = WaveSurfer.create({
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container: document.querySelector('#waveform'),
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waveColor: '#A8DBA8',
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progressColor: '#3B8686',
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backend: 'MediaElement'
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});
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// Load audio from existing media element
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var mediaElt = document.querySelector('video');
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wavesurfer.load(mediaElt);</code></pre>
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</p>
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<h3>Pre-rendered Peaks</h3>
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<p>
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If you have pre-rendered peaks (on your server),
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you can pass them into the <code>load</code>
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function. This is optional–if you don't provide
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any peaks,
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<strong>wavesurfer.js</strong> will first draw a
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thin line instead of a waveform, then attempt to
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download the audio file via Ajax and decode it
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with Web Audio if available.
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</p>
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<p>
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<pre><code>
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// init with an array of peak data.
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wavesurfer.load(mediaElt, [0.0218, 0.0183, 0.0165, 0.0198, 0.2137]);
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</code></pre>
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</p>
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<p>
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Press this button to see the same demo with pre-decoded peaks:
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<button class="btn btn-warning" data-action="peaks">
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Load with pre-rendered peaks
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</button>
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</p>
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</div>
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<div class="footer row">
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<div class="col-sm-12">
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<a rel="license" href="https://opensource.org/licenses/BSD-3-Clause"><img alt="BSD-3-Clause License" style="border-width:0" src="https://img.shields.io/badge/License-BSD%203--Clause-blue.svg" /></a>
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</div>
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<div class="col-sm-7">
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<span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">wavesurfer.js</span> by <a href="https://github.com/katspaugh/wavesurfer.js">katspaugh</a> is licensed under a <a style="white-space: nowrap" rel="license" href="https://opensource.org/licenses/BSD-3-Clause">BSD-3-Clause License</a>.
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</div>
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<div class="col-sm-5">
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<div class="pull-right">
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<noindex>
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The audio file is from <a rel="nofollow" href="http://spokencorpora.ru/">spokencorpora.ru</a>, used with permission.
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</noindex>
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</div>
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</div>
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</div>
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</div>
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<div class="github-fork-ribbon-wrapper right">
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<div class="github-fork-ribbon">
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<a itemprop="isBasedOnUrl" href="https://github.com/katspaugh/wavesurfer.js">Fork me on GitHub</a>
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</div>
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</div>
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<script>
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(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
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(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
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m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
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})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
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ga('create', 'UA-50026819-1', 'wavesurfer.fm');
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ga('send', 'pageview');
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</script>
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</body>
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</html>
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