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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
<link rel="find" href="http://developer.apple.com/search/">
<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
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<!-- BEGIN TITLE -->
<title>QTCoreVideo101</title>
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<script language="JavaScript">
function JumpToNewPage() {
window.location=document.scpopupmenu.gotop.value;
return true;
}
</script>
</head>
<!-- BEGIN BODY OPEN -->
<body><a name="//apple_ref/doc/uid/DTS10003690" title="QTCoreVideo101"></a>
<!--END BODY OPEN -->
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<center>
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<div id="breadcrumb">
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
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<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/Cocoa/index.html">Cocoa</a> > <a href="../../samplecode/Cocoa/idxQuickTime-date.html">QuickTime</a> >
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<!-- START MAIN CONTENT -->
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<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">QTCoreVideo101</div></h1></td>
</tr>
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<td id="scdetails">
<p><strong>Version:</strong> 1.0.1</p>
<p><strong>Posted:</strong> 2008-04-24</p>
<p><strong>Build Requirements:</strong> Xcode 2.0+</p>
<p><strong>Runtime Requirements:</strong> Mac OS X 10.3.9, Mac OS X 10.4+, QuickTime 7+</p>
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<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/main.m</option>
<option value="listing2.html">/MyController.h</option>
<option value="listing3.html">/MyController.m</option>
<option value="listing4.html">/MyOpenGLView.h</option>
<option value="listing5.html">/MyOpenGLView.m</option></select>
</p>
</form>
<p><strong><a href="QTCoreVideo101.zip">Download Sample</a></strong> (“QTCoreVideo101.zip”, 173.1K)<BR>
<strong><a href="QTCoreVideo101.dmg">Download Sample</a></strong> (“QTCoreVideo101.dmg”, 211.1K)</p>
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<td scope="row"><img width="680" height="10" src="images/1dot.gif" alt=""><br>
<img height="1" width="680" src="images/1dot_919699.gif" alt=""><br>
<img width="680" height="20" src="images/1dot.gif" alt=""></td>
</tr>
<tr>
<td scope="row">
<h2>Description</h2>
<p>QTCoreVideo101 is a cocoa application demonstrating (in the least amount of code possible) how to render a QuickTime Movie using OpenGL and the new video pipeline. It is a good place to start for developers looking at OpenGL, Core Video and Visual Contexts for the very first time.</p><p>In this sample we're using the following framework APIs:</p><p>QTKit is used to play back a QuickTime Movie.</p><p>QuickTime Visual Context is used as the drawing destination for the QuickTime Movie.</p><p>NSOpenGLView is used as our view, this is where we draw a video frame on a teapot or quad.</p><p>Core Video pipeline:</p><p>Movie -> Visual context -> OpenGL transforms -> OpenGL rendering ----> Hardware</p><p>What is Core Video:</p><p>Core Video delivers a modern foundation for video services providing a bridge between QuickTime and the GPU for hardware-accelerated video processing. This highly optimized pipeline for video presentation increases performance and reduces CPU load, freeing up resources for other operations.</p>
<h2>Document Revision History</h2>
<table cellspacing="0" class="graybox" width="680">
<tr>
<th width="100">Date</th>
<th width="580">Notes</th>
</tr>
<tr><td scope="row">2008-04-24</td><td>added automatic texture coordinate generation for teapot video</td></tr>
<tr><td scope="row">2005-07-19</td><td>Updated to produce a universal binary. No code changes were required.</td></tr>
<tr><td scope="row">2005-07-15</td><td>now calling QTVisualContextTask while owning lock
overide and add lock around update method
added clean-up code</td></tr>
<tr><td scope="row">2005-06-06</td><td>Demonstrates (with very little code) how to render a QuickTime Movie using CoreVideo and OpenGL.</td></tr>
</table>
</td>
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</table>
<!-- END WIDE COLUMN -->
<!-- END MAIN CONTENT -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
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<td><div style="width: 100%; height: 1px; background-color: #919699; margin-top: 5px; margin-bottom: 15px"></div></td>
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<td align="center"><br/>
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<th>Did this document help you?</th>
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<td>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/QTCoreVideo101/index.html%3Fid%3DDTS10003690-1.1&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
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<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/QTCoreVideo101/index.html%3Fid%3DDTS10003690-1.1&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
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