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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Peaks.js Demo Page</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="titles">
<h1>Peaks.js</h1>
<p>
Peaks.js is a JavaScript library that allows you to display and
interact with audio waveforms in the browser.
</p>
<h2>Demo pages</h2>
<p>
The following pages demonstrate various configuration options:
</p>
<p>
<a href="/index.html">Precomputed Waveform Data</a> |
<a href="/webaudio.html">Web Audio API</a> |
<a href="/zoomable-waveform.html">Single Zoomable Waveform</a> |
<a href="/overview-waveform.html">Single Fixed Waveform</a> |
<a href="/cue-events.html">Cue Events</a> |
<a href="/set-source.html">Changing the Media URL</a> |
<a href="/multi-channel.html">Multi-Channel Waveform</a> |
<a href="/custom-markers">Custom Point and Segment Markers</a> |
<a href="/overlay-segments.html">Overlay Segments</a> |
<a href="/external-player.html">External Audio Player</a> |
Scrollbar
</p>
<h2>Demo: Scrollbar</h2>
<p>
This demo shows how to configure Peaks.js with a scrollbar.
</p>
</div>
<div class="waveform-container">
<div id="zoomview-container"></div>
<div id="scrollbar-container"></div>
</div>
<div class="waveform-container">
<div id="overview-container"></div>
</div>
<div id="demo-controls">
<audio id="audio" controls="controls">
<source src="/TOL_6min_720p_download.mp3" type="audio/mpeg">
<source src="/TOL_6min_720p_download.ogg" type='audio/ogg; codecs="vorbis"'>
Your browser does not support the audio element.
</audio>
<div id="controls">
<div>
<button data-action="zoom-in">Zoom in</button>
<button data-action="zoom-out">Zoom out</button>
<input type="text" id="seek-time" value="0.0">
<button data-action="seek">Seek</button>
</div>
<div>
<label for="mousewheel-mode">Mousewheel mode:</label>
<select id="mousewheel-mode">
<option value="none">None</option>
<option value="scroll">Scroll</option>
</select>
<input type="checkbox" id="auto-scroll" checked>
<label for="auto-scroll">Auto-scroll</label>
</div>
<div>
<button data-action="resize-width">Resize width</button>
<button data-action="resize-height">Resize height</button>
</div>
</div>
</div>
<script src="/peaks.js"></script>
<script>
(function(Peaks) {
var options = {
zoomview: {
container: document.getElementById('zoomview-container'),
playheadClickTolerance: 3
},
overview: {
container: document.getElementById('overview-container')
},
scrollbar: {
container: document.getElementById('scrollbar-container'),
color: '#888',
minWidth: 100
},
mediaElement: document.getElementById('audio'),
dataUri: {
arraybuffer: '/TOL_6min_720p_download.dat',
json: '/TOL_6min_720p_download.json'
},
keyboard: true,
pointMarkerColor: '#006eb0',
showPlayheadTime: true,
waveformCache: true,
zoomLevels: [512, 1024, 2048, 4096]
};
Peaks.init(options, function(err, peaksInstance) {
if (err) {
console.error(err.message);
return;
}
console.log("Peaks instance ready");
document.querySelector('[data-action="zoom-in"]').addEventListener('click', function() {
peaksInstance.zoom.zoomIn();
});
document.querySelector('[data-action="zoom-out"]').addEventListener('click', function() {
peaksInstance.zoom.zoomOut();
});
document.querySelector('button[data-action="seek"]').addEventListener('click', function(event) {
var time = document.getElementById('seek-time').value;
var seconds = parseFloat(time);
if (!Number.isNaN(seconds)) {
peaksInstance.player.seek(seconds);
}
});
document.getElementById('mousewheel-mode').addEventListener('change', function(event) {
var mode = event.target.value;
var view = peaksInstance.views.getView('zoomview');
view.setWheelMode(mode);
});
document.getElementById('auto-scroll').addEventListener('change', function(event) {
var view = peaksInstance.views.getView('zoomview');
view.enableAutoScroll(event.target.checked);
});
document.querySelector('button[data-action="resize-width"]').addEventListener('click', function(event) {
document.querySelectorAll('.waveform-container').forEach(function(container) {
container.style.width = container.offsetWidth === 1000 ? "700px" : "1000px";
});
const zoomview = peaksInstance.views.getView('zoomview');
if (zoomview) {
zoomview.fitToContainer();
}
const scrollbar = peaksInstance.views.getScrollbar();
if (scrollbar) {
scrollbar.fitToContainer();
}
const overview = peaksInstance.views.getView('overview');
if (overview) {
overview.fitToContainer();
}
});
document.querySelector('button[data-action="resize-height"]').addEventListener('click', function(event) {
const zoomviewContainer = document.getElementById('zoomview-container');
const overviewContainer = document.getElementById('overview-container');
zoomviewContainer.style.height = zoomviewContainer.offsetHeight === 200 ? "300px" : "200px";
overviewContainer.style.height = overviewContainer.offsetHeight === 200 ? "85px" : "200px";
const zoomview = peaksInstance.views.getView('zoomview');
if (zoomview) {
zoomview.fitToContainer();
}
const overview = peaksInstance.views.getView('overview');
if (overview) {
overview.fitToContainer();
}
});
});
})(peaks);
</script>
</body>
</html>