<html> <head> <title>Camstream: CamStream API documentation</title> <link rel="stylesheet" href="../../tech.css" type="text/css"> </head> <body> <!-- Generated by Doxygen 1.2.6 --> <center> <a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center> <hr><h1>AdaptiveHuffman.h</h1><a href="adaptivehuffman_h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="preprocessor">#ifndef ADAPTIVEHUFFMAN_HPP</font> 00002 <font class="preprocessor"></font><font class="preprocessor">#define ADAPTIVEHUFFMAN_HPP</font> 00003 <font class="preprocessor"></font> 00004 <font class="keyword">struct </font><a class="code" href="struct_huffnode.html">HuffNode</a>; 00005 <font class="keyword">struct </font>HuffBlocks; 00006 00007 <font class="keyword">class </font><a class="code" href="class_cadaptivehuffman.html">CAdaptiveHuffman</a> 00008 { 00009 <font class="keyword">private</font>: 00010 <font class="comment">// Global stuff</font> 00011 <font class="keywordtype">int</font> MaxValue; 00012 <font class="keywordtype">int</font> LogValue; 00013 <font class="keywordtype">char</font> Compressor; 00014 <font class="keywordtype">char</font> UseMarks; 00015 00016 <font class="comment">// Stuff for Huffman tree</font> 00017 <a class="code" href="struct_huffnode.html">HuffNode</a> **Values; 00018 <a class="code" href="struct_huffnode.html">HuffNode</a> *Root, *Zero; 00019 <font class="keywordtype">int</font> Count; 00020 <a class="code" href="struct_huffnode.html">HuffNode</a> **Array; 00021 00022 <font class="comment">// Compressor stuff</font> 00023 <font class="keywordtype">char</font> *Buffer; 00024 <font class="keywordtype">int</font> BufferSize; <font class="comment">// buffer size in bits!</font> 00025 <font class="keywordtype">int</font> BitPos, MarkedBitPos; <font class="comment">// bit-position in buffer</font> 00026 00027 <font class="comment">// Decompressor state</font> 00028 <a class="code" href="struct_huffnode.html">HuffNode</a> *Walk; 00029 <font class="keyword">const</font> <font class="keywordtype">char</font> *BufP; 00030 <font class="keywordtype">char</font> BufC; 00031 <font class="keywordtype">int</font> State, BitShift; 00032 00033 <font class="keywordtype">void</font> Allocate(); 00034 <font class="keywordtype">void</font> CleanUp(); 00035 00036 <font class="keywordtype">bool</font> Stuff(<font class="keywordtype">int</font> code, <font class="keywordtype">int</font> length); <font class="comment">// Stuff bits in buffer</font> 00037 00038 <font class="keyword">public</font>: 00039 <font class="keyword">enum</font> { 00040 ValueOutOfBounds = -1, 00041 BufferFull = -2, 00042 EndOfFile = -3, 00043 }; 00044 00045 <a class="code" href="class_cadaptivehuffman.html#a0">CAdaptiveHuffman</a>(<font class="keywordtype">int</font> max_value); 00046 <a class="code" href="class_cadaptivehuffman.html#a1">~CAdaptiveHuffman</a>(); 00047 00048 <font class="keywordtype">void</font> <a class="code" href="class_cadaptivehuffman.html#a2">InitCompressor</a>(<font class="keywordtype">int</font> buffer_size, <font class="keywordtype">char</font> use_marks); 00049 <font class="keywordtype">int</font> <a class="code" href="class_cadaptivehuffman.html#a3">AddValue</a>(<font class="keywordtype">int</font> v); 00050 <font class="keywordtype">void</font> <a class="code" href="class_cadaptivehuffman.html#a4">Mark</a>(); 00051 <font class="keywordtype">int</font> <a class="code" href="class_cadaptivehuffman.html#a5">GetBits</a>() <font class="keyword">const</font>; 00052 <font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="class_cadaptivehuffman.html#a6">GetBuffer</a>() <font class="keyword">const</font>; 00053 00054 <font class="keywordtype">void</font> <a class="code" href="class_cadaptivehuffman.html#a7">InitDecompressor</a>(<font class="keywordtype">int</font> bits, <font class="keyword">const</font> <font class="keywordtype">char</font> *buffer); 00055 <font class="keywordtype">int</font> <a class="code" href="class_cadaptivehuffman.html#a8">GetValue</a>(); 00056 00057 <font class="keywordtype">void</font> <a class="code" href="class_cadaptivehuffman.html#a9">PrintTree</a>(); 00058 <font class="keywordtype">void</font> <a class="code" href="class_cadaptivehuffman.html#a10">PrintAncestors</a>(); 00059 }; 00060 00061 <font class="preprocessor">#endif</font> </font></pre></div><hr><address><small>Generated at Sat May 18 02:56:55 2002 for Camstream by <a href="http://www.doxygen.org/index.html"> <img src="doxygen.gif" alt="doxygen" align="middle" border=0 width=110 height=53></a>1.2.6 written by <a href="mailto:dimitri@stack.nl">Dimitri van Heesch</a>, © 1997-2001</small></address> </body> </html>