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41 <H1>LZMA SDK (Software Development Kit)</H1>
43 <P>The <B>LZMA SDK</B> provides the documentation, samples, header files, libraries,
44 and tools you need to develop applications that use <B>LZMA</B> compression.</P>
47 <TABLE cellspacing ="1" cellpadding ="6" border = "0">
49 <TH class="Title" align="center" width=80>Link</TH>
50 <TH class="Title" align="center" width=60>Size</TH>
51 <TH class="Title" align="center" width=90>Date</TH>
52 <TH class="Title" align="center" width=60>Version</TH>
53 <TH class="Title" align="center">Description</TH>
56 <TD class="Item" align="center"><A href="http://downloads.sourceforge.net/sevenzip/lzma457.tar.bz2">Download</A></TD>
57 <TD class="Item" align="center">292 KB</TD>
58 <TD class="Item" align="center">2007-12-12</TD>
59 <TD class="Item" align="center">4.57</TD>
60 <TD class="Item" rowspan=2>LZMA SDK (C, C++, C#, Java)</TD>
63 <TD class="Item" align="center"><A href="http://downloads.sourceforge.net/sevenzip/lzma461.tar.bz2">Download</A></TD>
64 <TD class="Item" align="center">282 KB</TD>
65 <TD class="Item" align="center">2008-11-23</TD>
66 <TD class="Item" align="center">4.61 beta</TD>
72 <LI><B>4.61 beta:</B> Some fixes. LZMA SDK is placed in the public domain.</LI>
73 <LI><B>4.60 beta:</B> Some fixes.</LI>
74 <LI><B>4.59 beta:</B> Some fixes.</LI>
75 <LI><B>4.58 beta:</B> Speed optimizations. New ANSI-C code for LZMA compression.</LI>
76 <LI><B>4.57:</B> Speed optimizations. Some fixes.</LI>
77 <LI><B>4.49:</B> .7z ANSI-C decoder was improved. C++ code for .7z archive handling was
79 <LI><B>4.43:</B> Small changes for more compatibility with some C/C++ compilers.</LI>
80 <LI><B>4.42:</B> Small changes in .h files in ANSI-C version.</LI>
81 <LI><B>4.39:</B> Some fixes in C++ code for latest beta versions.</LI>
82 <LI><B>4.37:</B> Some fixes in C++ code.</LI>
83 <LI><B>4.35:</B> Some fixes in C++ version of LZMA Decoder.</LI>
84 <LI><B>4.34:</B> Compression speed and memory requirements for compression were increased.</LI>
85 <LI><B>4.32:</B> Java version of LZMA SDK was included.</LI>
89 <P><B>LZMA</B> is the default and general compression method of <A href ="7z.html"><B>7z format</B></A>
90 in the <B>7-Zip</B> program. <B>LZMA</B> provides a high compression ratio and
91 very fast decompression, so it is very suitable for embedded applications.
92 For example, it can be used for ROM (firmware) compressing.</P>
94 <P><B>LZMA SDK</B> includes:</P>
96 <LI><B>C++</B> source code of <B>LZMA</B> Encoder and Decoder</LI>
97 <LI><B>ANSI-C</B> compatible source code for <B>LZMA</B> decompression with example</LI>
98 <LI><B>C#</B> source code for <B>LZMA</B> compression and decompression</LI>
99 <LI><B>Java</B> source code for <B>LZMA</B> compression and decompression</LI>
100 <LI>Compiled file->file <B>LZMA</B> compression/decompression program for the Windows operating system</LI>
103 <P><B>ANSI-C LZMA</B> decompression code is ported from the original C++ sources to C.
104 Also, it has been simplified and optimized for code size. But it is fully compatible
105 with <B>LZMA</B> from <B>7-Zip</B>.</P>
107 <P><B>LZMA</B> features:</P>
109 <LI>Compression speed: 500 KB/s on 1 GHz CPU
110 <LI>Decompression speed:
112 <LI>8-12 MB/s on 1 GHz Intel Pentium 3 or AMD Athlon.
113 <LI>500-1000 KB/s on 100 MHz ARM, MIPS, PowerPC or other simple RISC CPU.
115 <LI>Small memory requirements for decompression: 8-32 KB + DictionarySize
116 <LI>Small code size for decompression: 2-8 KB (depending on speed optimizations)
119 <P>The <B>LZMA</B> decoder uses only CPU integer instructions and can be
120 implemented for any modern 32-bit CPU (or, on a 16-bit CPU with some conditions).</P>
124 <P><B>LZMA SDK 4.61 beta</B> is placed in the <B>public domain.</B></P>
126 <P><B>LZMA SDK 4.57</B> is available under any of the following licenses:</P>
129 <LI>GNU Lesser General Public License
130 (<A href="http://www.gnu.org/copyleft/lesser.html"><B>GNU LGPL</B></A>)</LI>
131 <LI>Common Public License
132 (<A href="http://www.eclipse.org/legal/cpl-v10.html"><B>CPL</B></A>)</LI>
133 <LI>Simplified license for unmodified code (read <B>SPECIAL EXCEPTION</B>)</LI>
136 <P>This means that you can select one of these options and follow rules of that license.</P>
138 <P><B>SPECIAL EXCEPTION:</B>
139 Igor Pavlov, as the author of this code, expressly permit you
140 statically or dynamically to link your code (or bind by name)
141 to the files from <B>LZMA SDK</B> without subjecting your linked
142 code to the terms of the CPL or GNU LGPL.
143 Any modification or addition to any file in the <B>LZMA SDK</B>, however,
144 is subject to the GNU LGPL or CPL terms.</P>
146 <P>This SPECIAL EXCEPTION allows you to use <B>LZMA SDK</B> in applications
147 with proprietary code, provided you keep the <B>LZMA SDK</B> code unmodified.</P>
149 <P><B>SPECIAL EXCEPTION #2:</B> Igor Pavlov, as the author of
150 this code, expressly permits you to use <B>LZMA SDK 4.57</B> and <B>LZMA SDK 4.60 beta</B>
151 under the same terms and conditions contained in the License
152 Agreement you have for any previous version of <B>LZMA SDK</B>
153 developed by Igor Pavlov.</P>
155 <P>SPECIAL EXCEPTION #2 allows holders of proprietary licenses to use latest
156 version of <B>LZMA SDK</B> as update for previous versions.</P>
158 <P><B>GNU LGPL</B> and <B>CPL</B> are pretty similar and both these licenses are
159 classified as <B>free software licenses</B> at
160 <A href="http://www.gnu.org/">http://www.gnu.org/</A>
161 and <B>OSI-approved</B> at
162 <A href="http://www.opensource.org/">http://www.opensource.org/</A>.
165 <P>The source code of <B>7-Zip</B> is released under the terms of the GNU LGPL.
166 You can download the source code of <B>7-Zip</B> at
167 <A href="http://sourceforge.net/projects/sevenzip/">7-Zip's Source Forge Page</A></P>
171 <li><A href="http://en.wikipedia.org/wiki/LZMA">LZMA at Wikipedia</A></li>
172 <li><A href="http://sourceforge.net/projects/p7zip/">Port of LZMA SDK for JAVA from independent developer</A></li>
173 <li><A href="http://www.birtles.org.uk/programming/">Port of LZMA SDK to Pascal (Delphi, Kylix and Freepascal)</A></li>
174 <li><a href="http://www.joachim-bauch.de/projects/python/pylzma/">PyLZMA: Python bindings for LZMA</a></li>
175 <li><a href="http://tukaani.org/lzma/">LZMA utils</a></li>
176 <li><a href="http://contrapunctus.net/league/haques/lzmajio/">LZMA Streams in Java</a></li>
180 <HR><P><SMALL>Copyright (C) 2008 Igor Pavlov.</SMALL></P>
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