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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="a00079.html">IntraDCBandCodec</a>
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<h1>dirac::IntraDCBandCodec Class Reference</h1><!-- doxytag: class="dirac::IntraDCBandCodec" --><!-- doxytag: inherits="GenericIntraDCBandCodec< ArithCodec< CoeffArray > >" -->A class specially for coding the DC subband of Intra frames.
<a href="#_details">More...</a>
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<code>#include <<a class="el" href="a00163_source.html">band_codec.h</a>></code>
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Inheritance diagram for dirac::IntraDCBandCodec:</div>
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<p><center><img src="a00079.png" usemap="#dirac::IntraDCBandCodec_map" border="0" alt=""></center>
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<area href="a00075.html" alt="dirac::GenericIntraDCBandCodec< ArithCodec< CoeffArray > >" shape="rect" coords="0,168,377,192">
<area href="a00074.html" alt="dirac::GenericBandCodec< ArithCodec< CoeffArray > >" shape="rect" coords="0,112,377,136">
<area href="a00001.html" alt="dirac::ArithCodec< CoeffArray >" shape="rect" coords="0,56,377,80">
<area href="a00002.html" alt="dirac::ArithCodecBase" shape="rect" coords="0,0,377,24">
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<a href="a00282.html">List of all members.</a><h2>Public Member Functions</h2>
<ul>
<li><a class="el" href="a00079.html#8a8a8f34dcaf5b563f259194b5aaf99c">IntraDCBandCodec</a> (<a class="el" href="a00141.html">SubbandByteIO</a> *subband_byteio, size_t number_of_contexts, const <a class="el" href="a00142.html">SubbandList</a> &band_list)
<dl class="el"><dd class="mdescRight">Constructor. <a href="#8a8a8f34dcaf5b563f259194b5aaf99c"></a><br></dl></ul>
<h2>Private Member Functions</h2>
<ul>
<li>void <a class="el" href="a00079.html#f0fe3814042ee758a6988d7b5e997101">DoWorkCode</a> (<a class="el" href="a00021.html">CoeffArray</a> &in_data)
<dl class="el"><dd class="mdescRight">Initialize extra data required for error-feedback DC quantization. <a href="#f0fe3814042ee758a6988d7b5e997101"></a><br></dl><li>void <a class="el" href="a00079.html#310cf073898fe6f4c6ac46a88e87086b">DoWorkDecode</a> (<a class="el" href="a00021.html">CoeffArray</a> &out_data)
<dl class="el"><dd class="mdescRight">Ditto. <a href="#310cf073898fe6f4c6ac46a88e87086b"></a><br></dl><li>void <a class="el" href="a00079.html#4b8080dd9f86ca3552522310c774913f">CodeCoeff</a> (<a class="el" href="a00021.html">CoeffArray</a> &in_data, const int xpos, const int ypos)
<dl class="el"><dd class="mdescRight">Encode a single coefficient using error-feedback DC quantization. <a href="#4b8080dd9f86ca3552522310c774913f"></a><br></dl><li>void <a class="el" href="a00079.html#552d6119c66ae1b84264879bf850f0c5">DecodeCoeff</a> (<a class="el" href="a00021.html">CoeffArray</a> &out_data, const int xpos, const int ypos)
<dl class="el"><dd class="mdescRight">Decode a single coefficient using error-feedback DC quantization. <a href="#552d6119c66ae1b84264879bf850f0c5"></a><br></dl><li><a class="el" href="a00079.html#4df07cdedc193d7ec3d06e4f73b989aa">IntraDCBandCodec</a> (const <a class="el" href="a00079.html">IntraDCBandCodec</a> &cpy)
<dl class="el"><dd class="mdescRight">Private, bodyless copy constructor: class should not be copied. <a href="#4df07cdedc193d7ec3d06e4f73b989aa"></a><br></dl><li><a class="el" href="a00079.html">IntraDCBandCodec</a> & <a class="el" href="a00079.html#d5230de4cdb32f340cb043ebad68a855">operator=</a> (const <a class="el" href="a00079.html">IntraDCBandCodec</a> &rhs)
<dl class="el"><dd class="mdescRight">Private, bodyless copy operator=: class should not be assigned. <a href="#d5230de4cdb32f340cb043ebad68a855"></a><br></dl></ul>
<h2>Private Attributes</h2>
<ul>
<li><a class="el" href="a00021.html">CoeffArray</a> <a class="el" href="a00079.html#fcda0df3c3deb09fd8bf751d94c4eddf">m_dc_pred_res</a>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
A class specially for coding the DC subband of Intra frames, using intra-band prediction of coefficients. It uses the abstract <a class="el" href="a00001.html" title="Abstract binary arithmetic coding class.">ArithCodec</a> class <hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="8a8a8f34dcaf5b563f259194b5aaf99c"></a><!-- doxytag: member="dirac::IntraDCBandCodec::IntraDCBandCodec" ref="8a8a8f34dcaf5b563f259194b5aaf99c" args="(SubbandByteIO *subband_byteio, size_t number_of_contexts, const SubbandList &band_list)" -->
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<td class="memname">dirac::IntraDCBandCodec::IntraDCBandCodec </td>
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<td class="paramtype"><a class="el" href="a00141.html">SubbandByteIO</a> * </td>
<td class="paramname"> <em>subband_byteio</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">size_t </td>
<td class="paramname"> <em>number_of_contexts</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">const <a class="el" href="a00142.html">SubbandList</a> & </td>
<td class="paramname"> <em>band_list</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [inline]</code></td>
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Creates a <a class="el" href="a00079.html" title="A class specially for coding the DC subband of Intra frames.">IntraDCBandCodec</a> object to encode subband data, based on parameters <dl compact><dt><b>Parameters:</b></dt><dd>
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<tr><td valign="top"></td><td valign="top"><em>subband_byteio</em> </td><td>input/output for the encoded bits </td></tr>
<tr><td valign="top"></td><td valign="top"><em>number_of_contexts</em> </td><td>the number of contexts used in the encoding process </td></tr>
<tr><td valign="top"></td><td valign="top"><em>band_list</em> </td><td>the set of all the subbands </td></tr>
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<a class="anchor" name="4df07cdedc193d7ec3d06e4f73b989aa"></a><!-- doxytag: member="dirac::IntraDCBandCodec::IntraDCBandCodec" ref="4df07cdedc193d7ec3d06e4f73b989aa" args="(const IntraDCBandCodec &cpy)" -->
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<td class="memname">dirac::IntraDCBandCodec::IntraDCBandCodec </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="a00079.html">IntraDCBandCodec</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="4b8080dd9f86ca3552522310c774913f"></a><!-- doxytag: member="dirac::IntraDCBandCodec::CodeCoeff" ref="4b8080dd9f86ca3552522310c774913f" args="(CoeffArray &in_data, const int xpos, const int ypos)" -->
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<td class="memname">void dirac::IntraDCBandCodec::CodeCoeff </td>
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<td class="paramtype"><a class="el" href="a00021.html">CoeffArray</a> & </td>
<td class="paramname"> <em>in_data</em>, </td>
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<td class="paramtype">const int </td>
<td class="paramname"> <em>xpos</em>, </td>
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<td class="paramtype">const int </td>
<td class="paramname"> <em>ypos</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [private, virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a00074.html#e563efd53d42e61b4613bd6f5999e662">dirac::GenericBandCodec< ArithCodec< CoeffArray > ></a>.</p>
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<a class="anchor" name="552d6119c66ae1b84264879bf850f0c5"></a><!-- doxytag: member="dirac::IntraDCBandCodec::DecodeCoeff" ref="552d6119c66ae1b84264879bf850f0c5" args="(CoeffArray &out_data, const int xpos, const int ypos)" -->
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<td class="memname">void dirac::IntraDCBandCodec::DecodeCoeff </td>
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<td class="paramtype"><a class="el" href="a00021.html">CoeffArray</a> & </td>
<td class="paramname"> <em>out_data</em>, </td>
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<td class="paramtype">const int </td>
<td class="paramname"> <em>xpos</em>, </td>
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<td class="paramtype">const int </td>
<td class="paramname"> <em>ypos</em></td><td> </td>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [private, virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a00074.html#9d930a4e0c1fad0e2f16227ec24bbf19">dirac::GenericBandCodec< ArithCodec< CoeffArray > ></a>.</p>
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<a class="anchor" name="f0fe3814042ee758a6988d7b5e997101"></a><!-- doxytag: member="dirac::IntraDCBandCodec::DoWorkCode" ref="f0fe3814042ee758a6988d7b5e997101" args="(CoeffArray &in_data)" -->
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<td class="memname">void dirac::IntraDCBandCodec::DoWorkCode </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a00021.html">CoeffArray</a> & </td>
<td class="paramname"> <em>in_data</em> </td>
<td> ) </td>
<td><code> [private, virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a00074.html#fbe9e6a13374a7b030ae28397b84395f">dirac::GenericBandCodec< ArithCodec< CoeffArray > ></a>.</p>
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<a class="anchor" name="310cf073898fe6f4c6ac46a88e87086b"></a><!-- doxytag: member="dirac::IntraDCBandCodec::DoWorkDecode" ref="310cf073898fe6f4c6ac46a88e87086b" args="(CoeffArray &out_data)" -->
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<td class="memname">void dirac::IntraDCBandCodec::DoWorkDecode </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a00021.html">CoeffArray</a> & </td>
<td class="paramname"> <em>out_data</em> </td>
<td> ) </td>
<td><code> [private, virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a00074.html#2db4a20896bde64fcae2c6fe35583078">dirac::GenericBandCodec< ArithCodec< CoeffArray > ></a>.</p>
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<a class="anchor" name="d5230de4cdb32f340cb043ebad68a855"></a><!-- doxytag: member="dirac::IntraDCBandCodec::operator=" ref="d5230de4cdb32f340cb043ebad68a855" args="(const IntraDCBandCodec &rhs)" -->
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<td class="memname"><a class="el" href="a00079.html">IntraDCBandCodec</a>& dirac::IntraDCBandCodec::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="a00079.html">IntraDCBandCodec</a> & </td>
<td class="paramname"> <em>rhs</em> </td>
<td> ) </td>
<td><code> [private]</code></td>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="fcda0df3c3deb09fd8bf751d94c4eddf"></a><!-- doxytag: member="dirac::IntraDCBandCodec::m_dc_pred_res" ref="fcda0df3c3deb09fd8bf751d94c4eddf" args="" -->
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<td class="memname"><a class="el" href="a00021.html">CoeffArray</a> <a class="el" href="a00079.html#fcda0df3c3deb09fd8bf751d94c4eddf">dirac::IntraDCBandCodec::m_dc_pred_res</a><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="a00163_source.html">band_codec.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
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