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55 <H1>LZMA SDK (Software Development Kit)</H1>
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57 <P>The <B>LZMA SDK</B> provides the documentation, samples, header files, libraries,
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58 and tools you need to develop applications that use <B>LZMA</B> compression.</P>
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63 <TH class="Title" align="center" width=80>Link</TH>
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64 <TH class="Title" align="center" width=60>Size</TH>
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65 <TH class="Title" align="center" width=90>Date</TH>
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66 <TH class="Title" align="center" width=60>Version</TH>
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67 <TH class="Title" align="center">Description</TH>
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70 <TD class="Item" align="center"><A href="http://downloads.sourceforge.net/sevenzip/lzma920.tar.bz2">Download</A></TD>
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71 <TD class="Item" align="center">500 KB</TD>
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72 <TD class="Item" align="center">2010-11-18</TD>
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73 <TD class="Item" align="center">9.20</TD>
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74 <TD class="Item">LZMA SDK (C, C++, C#, Java)</TD>
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77 <TD class="Item" align="center"><A href="http://downloads.sourceforge.net/sevenzip/lzma922.tar.bz2">Download</A></TD>
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78 <TD class="Item" align="center">500 KB</TD>
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79 <TD class="Item" align="center">2011-04-19</TD>
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80 <TD class="Item" align="center">9.22 Beta</TD>
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81 <TD class="Item">LZMA SDK (C, C++, C#, Java)</TD>
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84 <TD class="Item" align="center"><A href="http://dl.7-zip.org/lzma-specification.zip">Download</A></TD>
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85 <TD class="Item" align="center">18 KB</TD>
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86 <TD class="Item" align="center">2013-07-28</TD>
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87 <TD class="Item" align="center"></TD>
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88 <TD class="Item">LZMA Specification (Draft)</TD>
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92 <P><B>What's new:</B>
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94 <LI><B>9.20:</B> New small SFX module for installers.</LI>
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95 <LI><B>9.11:</B> PPMd support.</LI>
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96 <LI><B>9.04:</B> LZMA2 and XZ support.</LI>
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97 <LI><B>4.62:</B> Some fixes. LZMA SDK is placed in the public domain.</LI>
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98 <LI><B>4.58:</B> Speed optimizations. New ANSI-C code for LZMA compression.</LI>
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99 <LI><B>4.57:</B> Speed optimizations. Some fixes.</LI>
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100 <LI><B>4.49:</B> .7z ANSI-C decoder was improved. C++ code for .7z archive handling was
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105 <P><B>LZMA</B> is the default and general compression method of <A href ="7z.html"><B>7z format</B></A>
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106 in the <B>7-Zip</B> program. <B>LZMA</B> provides a high compression ratio and
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107 very fast decompression, so it is very suitable for embedded applications.
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108 For example, it can be used for ROM (firmware) compressing.</P>
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110 <P><B>LZMA SDK</B> includes:</P>
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112 <LI><B>C++</B> source code of <B>LZMA</B> Encoder and Decoder</LI>
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113 <LI><B>C++</B> source code for <B>.7z</B> compression and decompression (reduced version)</LI>
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114 <LI><B>ANSI-C</B> compatible source code for <B>LZMA / LZMA2 / XZ</B> compression and decompression</LI>
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115 <LI><B>ANSI-C</B> compatible source code for <B>7z</B> decompression with example</LI>
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116 <LI><B>C#</B> source code for <B>LZMA</B> compression and decompression</LI>
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117 <LI><B>Java</B> source code for <B>LZMA</B> compression and decompression</LI>
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118 <LI><B>lzma.exe</B> for .lzma compression and decompression</LI>
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119 <LI><B>7zr.exe</B> to work with 7z archives (reduced version of 7z.exe from 7-Zip)</LI>
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122 <P><B>ANSI-C</B> and <B>C++</B> source code in LZMA SDK is subset of source code of 7-Zip.</P>
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124 <P><B>LZMA</B> features:</P>
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126 <LI>Compression speed: 2 MB/s on 2 GHz dual-core CPU.
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127 <LI>Decompression speed:
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129 <LI>20-30 MB/s on 2 GHz Intel Core2 or AMD Athlon 64.
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130 <LI>1-2 MB/s on 200 MHz ARM, MIPS, PowerPC or other simple RISC CPU.
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132 <LI>Small memory requirements for decompression: 8-32 KB + DictionarySize
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133 <LI>Small code size for decompression: 2-8 KB (depending on speed optimizations)
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136 <P>The <B>LZMA</B> decoder uses only CPU integer instructions and can be
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137 implemented for any modern 32-bit CPU (or, on a 16-bit CPU with some conditions).</P>
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141 <P><B>LZMA SDK</B> is placed in the <B>public domain.</B></P>
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143 <H2>LZMA Links</H2>
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145 <li><A href="http://en.wikipedia.org/wiki/LZMA">LZMA at Wikipedia</A></li>
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146 <li><A href="http://sourceforge.net/projects/p7zip/">Port of LZMA SDK for JAVA from independent developer</A></li>
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147 <li><A href="http://www.birtles.org.uk/programming/">Port of LZMA SDK to Pascal (Delphi, Kylix and Freepascal)</A></li>
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148 <li><a href="http://www.joachim-bauch.de/projects/python/pylzma/">PyLZMA: Python bindings for LZMA</a></li>
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149 <li><a href="http://tukaani.org/xz/">XZ Utils / LZMA utils</a></li>
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150 <li><a href="http://contrapunctus.net/league/haques/lzmajio/">LZMA Streams in Java</a></li>
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151 <li><a href="http://www.7-cpu.com/">LZMA Benchmark results for different CPUs</a></li>
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157 <P><SMALL>Copyright (C) 2013 Igor Pavlov.</SMALL></P>
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