<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>Dirac Video Codec</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
</head><body bgcolor="#ffffff">
<h1 align="center" color="#606080">
Dirac - A Video Codec
</h1>
<p align="center">
Created by the <a href="http://www.bbc.co.uk">British Broadcasting Corporation</a>.
</p>
<hr>
<!-- Generated by Doxygen 1.5.4 -->
<div class="nav">
<a class="el" href="a00226.html">dirac</a>::<a class="el" href="a00142.html">WaveletTransform</a>::<a class="el" href="a00152.html">VHFilterDD9_7</a></div>
<h1>dirac::WaveletTransform::VHFilterDD9_7 Class Reference</h1><!-- doxytag: class="dirac::WaveletTransform::VHFilterDD9_7" --><!-- doxytag: inherits="dirac::WaveletTransform::VHFilter" -->A short filter that's actually close to Daubechies (9,7) but with just two lifting steps.
<a href="#_details"></a>
<p>
<div class="dynheader">
Inheritance diagram for dirac::WaveletTransform::VHFilterDD9_7:</div>
<div class="dynsection">
<p><center><img src="a00152.png" usemap="#dirac::WaveletTransform::VHFilterDD9_7_map" border="0" alt=""></center>
<map name="dirac::WaveletTransform::VHFilterDD9_7_map">
<area href="a00149.html" alt="dirac::WaveletTransform::VHFilter" shape="rect" coords="0,0,241,24">
</map>
</div>
<p>
<a href="a00405.html">List of all members.</a><h2>Public Member Functions</h2>
<ul>
<li>void <a class="el" href="a00152.html#ae3b8ccf60e158a74fbfbc7867c76869">Split</a> (const int xp, const int yp, const int xl, const int yl, <a class="el" href="a00023.html">CoeffArray</a> &coeff_data)
<dl class="el"><dd class="mdescRight">Split a subband into 4. <a href="#ae3b8ccf60e158a74fbfbc7867c76869"></a><br></dl><li>void <a class="el" href="a00152.html#f829ff82d301666f5d43e9b99a911cfd">Synth</a> (const int xp, const int yp, const int xl, const int yl, <a class="el" href="a00023.html">CoeffArray</a> &coeff_data)
<dl class="el"><dd class="mdescRight">Create a single band from 4 quadrant bands. <a href="#f829ff82d301666f5d43e9b99a911cfd"></a><br></dl><li>double <a class="el" href="a00152.html#bb7c987fd5ec6f84e2e5a89d8ec17730">GetLowFactor</a> () const
<dl class="el"><dd class="mdescRight">Return a correction factor to compensate for non-unity power gain of low-pass filter. <a href="#bb7c987fd5ec6f84e2e5a89d8ec17730"></a><br></dl><li>double <a class="el" href="a00152.html#095e7b90e39382aab629a11cca28c32c">GetHighFactor</a> () const
<dl class="el"><dd class="mdescRight">Return a correction factor to compensate for non-unity power gain of high-pass filter. <a href="#095e7b90e39382aab629a11cca28c32c"></a><br></dl><li>int <a class="el" href="a00152.html#6350731803cb5a12b2d53d54d117deb0">GetShift</a> () const
<dl class="el"><dd class="mdescRight">Return the value of the additional bitshift. <a href="#6350731803cb5a12b2d53d54d117deb0"></a><br></dl></ul>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="ae3b8ccf60e158a74fbfbc7867c76869"></a><!-- doxytag: member="dirac::WaveletTransform::VHFilterDD9_7::Split" ref="ae3b8ccf60e158a74fbfbc7867c76869" args="(const int xp, const int yp, const int xl, const int yl, CoeffArray &coeff_data)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void dirac::WaveletTransform::VHFilterDD9_7::Split </td>
<td>(</td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>xp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>yp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>xl</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>yl</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a00023.html">CoeffArray</a> & </td>
<td class="paramname"> <em>coeff_data</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Implements <a class="el" href="a00149.html#94034dc756c8bc8735a278022b2553aa">dirac::WaveletTransform::VHFilter</a>.</p>
</div>
</div><p>
<a class="anchor" name="f829ff82d301666f5d43e9b99a911cfd"></a><!-- doxytag: member="dirac::WaveletTransform::VHFilterDD9_7::Synth" ref="f829ff82d301666f5d43e9b99a911cfd" args="(const int xp, const int yp, const int xl, const int yl, CoeffArray &coeff_data)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void dirac::WaveletTransform::VHFilterDD9_7::Synth </td>
<td>(</td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>xp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>yp</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>xl</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int </td>
<td class="paramname"> <em>yl</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a00023.html">CoeffArray</a> & </td>
<td class="paramname"> <em>coeff_data</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Implements <a class="el" href="a00149.html#f9ad18f60ef3dd281ddc51f70f9f4fc5">dirac::WaveletTransform::VHFilter</a>.</p>
</div>
</div><p>
<a class="anchor" name="bb7c987fd5ec6f84e2e5a89d8ec17730"></a><!-- doxytag: member="dirac::WaveletTransform::VHFilterDD9_7::GetLowFactor" ref="bb7c987fd5ec6f84e2e5a89d8ec17730" args="() const " -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double dirac::WaveletTransform::VHFilterDD9_7::GetLowFactor </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"> const<code> [inline, virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Implements <a class="el" href="a00149.html#0e4a60f03204bd572cf25dd48fbedfd5">dirac::WaveletTransform::VHFilter</a>.</p>
</div>
</div><p>
<a class="anchor" name="095e7b90e39382aab629a11cca28c32c"></a><!-- doxytag: member="dirac::WaveletTransform::VHFilterDD9_7::GetHighFactor" ref="095e7b90e39382aab629a11cca28c32c" args="() const " -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double dirac::WaveletTransform::VHFilterDD9_7::GetHighFactor </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"> const<code> [inline, virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Implements <a class="el" href="a00149.html#f5b4fc1f66e1583d61f33ba2626135fb">dirac::WaveletTransform::VHFilter</a>.</p>
</div>
</div><p>
<a class="anchor" name="6350731803cb5a12b2d53d54d117deb0"></a><!-- doxytag: member="dirac::WaveletTransform::VHFilterDD9_7::GetShift" ref="6350731803cb5a12b2d53d54d117deb0" args="() const " -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int dirac::WaveletTransform::VHFilterDD9_7::GetShift </td>
<td>(</td>
<td class="paramname"> </td>
<td> ) </td>
<td width="100%"> const<code> [inline, virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
<p>Implements <a class="el" href="a00149.html#e8072d9db721d9b7f7e12ad04f43a048">dirac::WaveletTransform::VHFilter</a>.</p>
</div>
</div><p>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="a00298.html">wavelet_utils.h</a></ul>
<hr>
<p align="center"><small>
© 2004 British Broadcasting Corporation.
Dirac code licensed under the <a href="http://www.mozilla.org/MPL/">Mozilla Public License (MPL) Version 1.1</a>.<br>
HTML documentation generated by Dimitri van Heesch's
excellent <a href="http://www.doxygen.org">Doxygen</a> tool.
</small></p>
</body>
</html>
distrib
>
Mandriva
>
2008.1
>
x86_64
>
media
>
main-release
>
by-pkgid
>
b91608bcc8cdfae85c75f04c03683d58
>
files
>
239
