262 lines
9.1 KiB
HTML
262 lines
9.1 KiB
HTML
<!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 | Timeline-Notches 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.timeline.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">Timeline Notches Feature 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 id="timeline"></div>
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<div class="controls">
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<div class="row">
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<div class="col-sm-7">
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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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<div class="col-sm-1">
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<i class="glyphicon glyphicon-zoom-in"></i>
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</div>
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<div class="col-sm-3">
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<input data-action="zoom" type="range" min="20" max="5000" value="0" style="width: 100%" />
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</div>
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<div class="col-sm-1">
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<i class="glyphicon glyphicon-zoom-out"></i>
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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="row marketing">
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<h3>How to Override Timeline Formatting</h3>
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<hr />
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<p>
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<pre><code>
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/**
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* Use formatTimeCallback to style the notch labels as you wish, such
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* as with more detail as the number of pixels per second increases.
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*
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* Here we format as M:SS.frac, with M suppressed for times < 1 minute,
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* and frac having 0, 1, or 2 digits as the zoom increases.
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*
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* Note that if you override the default function, you'll almost
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* certainly want to override timeInterval, primaryLabelInterval and/or
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* secondaryLabelInterval so they all work together.
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*
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* @param: seconds
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* @param: pxPerSec
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*/
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function formatTimeCallback(seconds, pxPerSec) {
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seconds = Number(seconds);
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var minutes = Math.floor(seconds / 60);
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seconds = seconds % 60;
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// fill up seconds with zeroes
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var secondsStr = Math.round(seconds).toString();
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if (pxPerSec >= 25 * 10) {
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secondsStr = seconds.toFixed(2);
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} else if (pxPerSec >= 25 * 1) {
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secondsStr = seconds.toFixed(1);
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}
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if (minutes > 0) {
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if (seconds < 10) {
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secondsStr = '0' + secondsStr;
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}
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return `${minutes}:${secondsStr}`;
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}
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return secondsStr;
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}
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/**
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* Use timeInterval to set the period between notches, in seconds,
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* adding notches as the number of pixels per second increases.
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*
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* Note that if you override the default function, you'll almost
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* certainly want to override formatTimeCallback, primaryLabelInterval
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* and/or secondaryLabelInterval so they all work together.
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*
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* @param: pxPerSec
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*/
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function timeInterval(pxPerSec) {
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var retval = 1;
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if (pxPerSec >= 25 * 100) {
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retval = 0.01;
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} else if (pxPerSec >= 25 * 40) {
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retval = 0.025;
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} else if (pxPerSec >= 25 * 10) {
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retval = 0.1;
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} else if (pxPerSec >= 25 * 4) {
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retval = 0.25;
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} else if (pxPerSec >= 25) {
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retval = 1;
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} else if (pxPerSec * 5 >= 25) {
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retval = 5;
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} else if (pxPerSec * 15 >= 25) {
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retval = 15;
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} else {
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retval = Math.ceil(0.5 / pxPerSec) * 60;
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}
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return retval;
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}
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/**
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* Return the cadence of notches that get labels in the primary color.
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* EG, return 2 if every 2nd notch should be labeled,
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* return 10 if every 10th notch should be labeled, etc.
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*
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* Note that if you override the default function, you'll almost
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* certainly want to override formatTimeCallback, primaryLabelInterval
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* and/or secondaryLabelInterval so they all work together.
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*
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* @param pxPerSec
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*/
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function primaryLabelInterval(pxPerSec) {
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var retval = 1;
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if (pxPerSec >= 25 * 100) {
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retval = 10;
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} else if (pxPerSec >= 25 * 40) {
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retval = 4;
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} else if (pxPerSec >= 25 * 10) {
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retval = 10;
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} else if (pxPerSec >= 25 * 4) {
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retval = 4;
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} else if (pxPerSec >= 25) {
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retval = 1;
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} else if (pxPerSec * 5 >= 25) {
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retval = 5;
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} else if (pxPerSec * 15 >= 25) {
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retval = 15;
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} else {
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retval = Math.ceil(0.5 / pxPerSec) * 60;
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}
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return retval;
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}
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/**
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* Return the cadence of notches to get labels in the secondary color.
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* EG, return 2 if every 2nd notch should be labeled,
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* return 10 if every 10th notch should be labeled, etc.
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*
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* Secondary labels are drawn after primary labels, so if
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* you want to have labels every 10 seconds and another color labels
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* every 60 seconds, the 60 second labels should be the secondaries.
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*
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* Note that if you override the default function, you'll almost
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* certainly want to override formatTimeCallback, primaryLabelInterval
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* and/or secondaryLabelInterval so they all work together.
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*
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* @param pxPerSec
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*/
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function secondaryLabelInterval(pxPerSec) {
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// draw one every 10s as an example
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return Math.floor(10 / timeInterval(pxPerSec));
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}
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var wavesurfer = WaveSurfer.create({
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// your other options here
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plugins: [
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WaveSurfer.timeline.create({
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container: '#timeline',
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formatTimeCallback: formatTimeCallback,
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timeInterval: timeInterval,
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primaryLabelInterval: primaryLabelInterval,
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secondaryLabelInterval: secondaryLabelInterval,
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primaryColor: 'blue',
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secondaryColor: 'red',
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primaryFontColor: 'blue',
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secondaryFontColor: 'red'
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})
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]
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})
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});
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wavesurfer.load('../media/demo.wav');
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</code></pre>
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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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