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<title>Camstream: CamStream API documentation</title>
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<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div>
<h1>AdaptiveHuffman.h</h1><a href="_adaptive_huffman_8h.html">Go to the documentation of this file.</a><pre class="fragment"><div>00001 <span class="preprocessor">#ifndef ADAPTIVEHUFFMAN_HPP</span>
00002 <span class="preprocessor"></span><span class="preprocessor">#define ADAPTIVEHUFFMAN_HPP</span>
00003 <span class="preprocessor"></span>
00004 <span class="keyword">struct </span><a class="code" href="struct_huff_node.html">HuffNode</a>;
00005 <span class="keyword">struct </span>HuffBlocks;
00006
<a name="l00007"></a><a class="code" href="class_c_adaptive_huffman.html">00007</a> <span class="keyword">class </span><a class="code" href="class_c_adaptive_huffman.html">CAdaptiveHuffman</a>
00008 {
00009 <span class="keyword">private</span>:
00010 <span class="comment">// Global stuff</span>
00011 <span class="keywordtype">int</span> MaxValue;
00012 <span class="keywordtype">int</span> LogValue;
00013 <span class="keywordtype">char</span> Compressor;
00014 <span class="keywordtype">char</span> UseMarks;
00015
00016 <span class="comment">// Stuff for Huffman tree</span>
00017 <a class="code" href="struct_huff_node.html">HuffNode</a> **Values;
00018 <a class="code" href="struct_huff_node.html">HuffNode</a> *Root, *Zero;
00019 <span class="keywordtype">int</span> Count;
00020 <a class="code" href="struct_huff_node.html">HuffNode</a> **Array;
00021
00022 <span class="comment">// Compressor stuff</span>
00023 <span class="keywordtype">char</span> *Buffer;
00024 <span class="keywordtype">int</span> BufferSize; <span class="comment">// buffer size in bits!</span>
00025 <span class="keywordtype">int</span> BitPos, MarkedBitPos; <span class="comment">// bit-position in buffer</span>
00026
00027 <span class="comment">// Decompressor state</span>
00028 <a class="code" href="struct_huff_node.html">HuffNode</a> *Walk;
00029 <span class="keyword">const</span> <span class="keywordtype">char</span> *BufP;
00030 <span class="keywordtype">char</span> BufC;
00031 <span class="keywordtype">int</span> State, BitShift;
00032
00033 <span class="keywordtype">void</span> Allocate();
00034 <span class="keywordtype">void</span> CleanUp();
00035
00036 <span class="keywordtype">bool</span> Stuff(<span class="keywordtype">int</span> code, <span class="keywordtype">int</span> length); <span class="comment">// Stuff bits in buffer</span>
00037
00038 <span class="keyword">public</span>:
00039 <span class="keyword">enum</span> {
00040 <a class="code" href="class_c_adaptive_huffman.html#w3w0">ValueOutOfBounds</a> = -1,
00041 <a class="code" href="class_c_adaptive_huffman.html#w3w1">BufferFull</a> = -2,
00042 <a class="code" href="class_c_adaptive_huffman.html#w3w2">EndOfFile</a> = -3,
00043 };
00044
00045 <a class="code" href="class_c_adaptive_huffman.html">CAdaptiveHuffman</a>(<span class="keywordtype">int</span> max_value);
00046 <a class="code" href="class_c_adaptive_huffman.html#a1">~CAdaptiveHuffman</a>();
00047
00048 <span class="keywordtype">void</span> <a class="code" href="class_c_adaptive_huffman.html#a2">InitCompressor</a>(<span class="keywordtype">int</span> buffer_size, <span class="keywordtype">char</span> use_marks);
00049 <span class="keywordtype">int</span> <a class="code" href="class_c_adaptive_huffman.html#a3">AddValue</a>(<span class="keywordtype">int</span> v);
00050 <span class="keywordtype">void</span> <a class="code" href="class_c_adaptive_huffman.html#a4">Mark</a>();
00051 <span class="keywordtype">int</span> <a class="code" href="class_c_adaptive_huffman.html#a5">GetBits</a>() <span class="keyword">const</span>;
00052 <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="class_c_adaptive_huffman.html#a6">GetBuffer</a>() <span class="keyword">const</span>;
00053
00054 <span class="keywordtype">void</span> <a class="code" href="class_c_adaptive_huffman.html#a7">InitDecompressor</a>(<span class="keywordtype">int</span> bits, <span class="keyword">const</span> <span class="keywordtype">char</span> *buffer);
00055 <span class="keywordtype">int</span> <a class="code" href="class_c_adaptive_huffman.html#a8">GetValue</a>();
00056
00057 <span class="keywordtype">void</span> <a class="code" href="class_c_adaptive_huffman.html#a9">PrintTree</a>();
00058 <span class="keywordtype">void</span> <a class="code" href="class_c_adaptive_huffman.html#a10">PrintAncestors</a>();
00059 };
00060
00061 <span class="preprocessor">#endif</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Wed Dec 13 23:38:46 2006 for CamStream by
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