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Dirac - A Video Codec
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Created by the <a href="http://www.bbc.co.uk">British Broadcasting Corporation</a>.
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<div class="navpath"><a class="el" href="a00234.html">dirac</a>::<a class="el" href="a00010.html">BlockDiffEighthPel</a>
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<h1>dirac::BlockDiffEighthPel Class Reference</h1><!-- doxytag: class="dirac::BlockDiffEighthPel" --><!-- doxytag: inherits="dirac::BlockDiffUp" -->A class for doing differences with eighth-pixel accurate vectors.
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<code>#include <<a class="el" href="a00196_source.html">me_utils.h</a>></code>
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Inheritance diagram for dirac::BlockDiffEighthPel:</div>
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<p><center><img src="a00010.png" usemap="#dirac::BlockDiffEighthPel_map" border="0" alt=""></center>
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<area href="a00009.html" alt="dirac::BlockDiff" shape="rect" coords="0,0,151,24">
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<a href="a00378.html">List of all members.</a><h2>Public Member Functions</h2>
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<li><a class="el" href="a00010.html#a93616ce94dce78cde424546f8f2aeb3">BlockDiffEighthPel</a> (const <a class="el" href="a00107.html">PicArray</a> &ref, const <a class="el" href="a00107.html">PicArray</a> &pic)
<dl class="el"><dd class="mdescRight">Constructor, initialising the reference and picture data. <a href="#a93616ce94dce78cde424546f8f2aeb3"></a><br></dl><li><a class="el" href="a00010.html#b86c5ee793cf64d61916cc6a124e5ad8">~BlockDiffEighthPel</a> ()
<dl class="el"><dd class="mdescRight">Destructor. <a href="#b86c5ee793cf64d61916cc6a124e5ad8"></a><br></dl><li>float <a class="el" href="a00010.html#09b13a8ac46f5c5a540edb66165c3de7">Diff</a> (const <a class="el" href="a00012.html">BlockDiffParams</a> &dparams, const <a class="el" href="a00091.html">MVector</a> &mv)
<dl class="el"><dd class="mdescRight">Do the difference, returning SAD. <a href="#09b13a8ac46f5c5a540edb66165c3de7"></a><br></dl><li>void <a class="el" href="a00010.html#339330879fd4cdec31cd1b7dbf1406fd">Diff</a> (const <a class="el" href="a00012.html">BlockDiffParams</a> &dparams, const <a class="el" href="a00091.html">MVector</a> &mv, const float mvcost, const float lambda, <a class="el" href="a00092.html">MvCostData</a> &best_costs, <a class="el" href="a00091.html">MVector</a> &best_mv)
<dl class="el"><dd class="mdescRight">Do the actual difference, overwriting the best MV so far if appropriate. <a href="#339330879fd4cdec31cd1b7dbf1406fd"></a><br></dl></ul>
<h2>Private Member Functions</h2>
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<li><a class="el" href="a00010.html#b01d01ad310d9b434ae3c528dc02e7ab">BlockDiffEighthPel</a> (const <a class="el" href="a00010.html">BlockDiffEighthPel</a> &cpy)
<dl class="el"><dd class="mdescRight">Private, bodyless copy-constructor: class should not be copied. <a href="#b01d01ad310d9b434ae3c528dc02e7ab"></a><br></dl><li><a class="el" href="a00010.html">BlockDiffEighthPel</a> & <a class="el" href="a00010.html#5fdbe050d2fd7f727381238ef791fbca">operator=</a> (const <a class="el" href="a00010.html">BlockDiffEighthPel</a> &rhs)
<dl class="el"><dd class="mdescRight">Private, bodyless assignment=: class should not be assigned. <a href="#5fdbe050d2fd7f727381238ef791fbca"></a><br></dl></ul>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a93616ce94dce78cde424546f8f2aeb3"></a><!-- doxytag: member="dirac::BlockDiffEighthPel::BlockDiffEighthPel" ref="a93616ce94dce78cde424546f8f2aeb3" args="(const PicArray &ref, const PicArray &pic)" -->
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<td class="memname">dirac::BlockDiffEighthPel::BlockDiffEighthPel </td>
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<td class="paramtype">const <a class="el" href="a00107.html">PicArray</a> & </td>
<td class="paramname"> <em>ref</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="a00107.html">PicArray</a> & </td>
<td class="paramname"> <em>pic</em></td><td> </td>
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<td>)</td>
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<a class="anchor" name="b86c5ee793cf64d61916cc6a124e5ad8"></a><!-- doxytag: member="dirac::BlockDiffEighthPel::~BlockDiffEighthPel" ref="b86c5ee793cf64d61916cc6a124e5ad8" args="()" -->
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<td class="memname">dirac::BlockDiffEighthPel::~BlockDiffEighthPel </td>
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<td class="paramname"> </td>
<td> ) </td>
<td><code> [inline]</code></td>
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<a class="anchor" name="b01d01ad310d9b434ae3c528dc02e7ab"></a><!-- doxytag: member="dirac::BlockDiffEighthPel::BlockDiffEighthPel" ref="b01d01ad310d9b434ae3c528dc02e7ab" args="(const BlockDiffEighthPel &cpy)" -->
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<td class="memname">dirac::BlockDiffEighthPel::BlockDiffEighthPel </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="a00010.html">BlockDiffEighthPel</a> & </td>
<td class="paramname"> <em>cpy</em> </td>
<td> ) </td>
<td><code> [private]</code></td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="339330879fd4cdec31cd1b7dbf1406fd"></a><!-- doxytag: member="dirac::BlockDiffEighthPel::Diff" ref="339330879fd4cdec31cd1b7dbf1406fd" args="(const BlockDiffParams &dparams, const MVector &mv, const float mvcost, const float lambda, MvCostData &best_costs, MVector &best_mv)" -->
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<td class="memname">void dirac::BlockDiffEighthPel::Diff </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="a00012.html">BlockDiffParams</a> & </td>
<td class="paramname"> <em>dparams</em>, </td>
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<td class="paramtype">const <a class="el" href="a00091.html">MVector</a> & </td>
<td class="paramname"> <em>mv</em>, </td>
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<td class="paramtype">const float </td>
<td class="paramname"> <em>mvcost</em>, </td>
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<td class="paramtype">const float </td>
<td class="paramname"> <em>lambda</em>, </td>
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<td class="paramtype"><a class="el" href="a00092.html">MvCostData</a> & </td>
<td class="paramname"> <em>best_costs</em>, </td>
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<td class="paramtype"><a class="el" href="a00091.html">MVector</a> & </td>
<td class="paramname"> <em>best_mv</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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Do the actual difference, overwriting the best MV so far if appropriate, and bailing out if we do worse <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dparams</em> </td><td>block parameters </td></tr>
<tr><td valign="top"></td><td valign="top"><em>mv</em> </td><td>the motion vector being used </td></tr>
<tr><td valign="top"></td><td valign="top"><em>mvcost</em> </td><td>the (prediction) cost of the motion vector mv </td></tr>
<tr><td valign="top"></td><td valign="top"><em>lambda</em> </td><td>the weighting to be given to mvcost </td></tr>
<tr><td valign="top"></td><td valign="top"><em>best_costs</em> </td><td>the best Lagrangian costs obtained yet </td></tr>
<tr><td valign="top"></td><td valign="top"><em>best_mv</em> </td><td>the MV giving the best Lagrangian costs so far </td></tr>
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<p>Implements <a class="el" href="a00014.html#9f39290b437ec2ee1ccc7cc5c2a7a384">dirac::BlockDiffUp</a>.</p>
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<a class="anchor" name="09b13a8ac46f5c5a540edb66165c3de7"></a><!-- doxytag: member="dirac::BlockDiffEighthPel::Diff" ref="09b13a8ac46f5c5a540edb66165c3de7" args="(const BlockDiffParams &dparams, const MVector &mv)" -->
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<td class="memname">float dirac::BlockDiffEighthPel::Diff </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="a00012.html">BlockDiffParams</a> & </td>
<td class="paramname"> <em>dparams</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="a00091.html">MVector</a> & </td>
<td class="paramname"> <em>mv</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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Do the difference, returning SAD <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>dparams</em> </td><td>block parameters </td></tr>
<tr><td valign="top"></td><td valign="top"><em>mv</em> </td><td>the motion vector being used </td></tr>
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<p>Implements <a class="el" href="a00014.html#c37ea269dc71e0bd0802a4ead1b11f48">dirac::BlockDiffUp</a>.</p>
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<a class="anchor" name="5fdbe050d2fd7f727381238ef791fbca"></a><!-- doxytag: member="dirac::BlockDiffEighthPel::operator=" ref="5fdbe050d2fd7f727381238ef791fbca" args="(const BlockDiffEighthPel &rhs)" -->
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<td class="memname"><a class="el" href="a00010.html">BlockDiffEighthPel</a>& dirac::BlockDiffEighthPel::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="a00010.html">BlockDiffEighthPel</a> & </td>
<td class="paramname"> <em>rhs</em> </td>
<td> ) </td>
<td><code> [private]</code></td>
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<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="a00196_source.html">me_utils.h</a></ul>
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<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.
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