1. LZMA2算法 LZMA2算法是一种基于LZ77算法的压缩算法,它使用字典匹配和动态编码来实现高效的压缩。在压缩数据时,LZMA2算法将输入数据分割成多个块,然后对每个块进行压缩。在解压数据时,它使用相同的字典来重建原始数据。 2. 快速压缩算法 快速压缩算法(Fast-LZMA2)是对LZMA2算法的简化和优化。它通过减少内存使用...
在这张表中,另外一个非常亮眼的,就是LZMA家族在如此高效率区间下,唯一存活的一种算法,同时也是LZMA家族当中最新版本fastLZMA2,因为吸收了zstd的一些先进经验,在压缩比减少不多的情况下,获得了能够和RAR相提并论的效率,特别是fastLZMA2压缩级别在五以下的时候,不仅压缩率高于RAR,而且效率还高于RAR的级别二,可以说,...
Fixed a bug in compression of very small files when using a high search depth. Added an incompressibility checker which processes high-entropy (e.g. encrypted or already compressed) data about twice as fast as before. License Fast LZMA2 is dual-licensed underBSDandGPLv2....
fast-lzma2.h fastpos_table.h fl2_common.c fl2_compress.c fl2_compress_internal.h fl2_decompress.c fl2_errors.h fl2_internal.h fl2_pool.c fl2_pool.h fl2_threading.c fl2_threading.h lzma2_dec.c lzma2_dec.h lzma2_enc.c ...
compression brotli p7zip archive zstd lz4 lzma 7zip lizard lzma2 lz5 lzham fastlzma2 Updated Jan 6, 2025 C Improve this page Add a description, image, and links to the fastlzma2 topic page so that developers can more easily learn about it. Curate this topic Add this topic to yo...
fast-lzma2 / xxhash.h xxhash.h12.48 KB 一键复制编辑原始数据按行查看历史 conor42提交于7年前.Initial commit /* xxHash - Extremely Fast Hash algorithm Header File Copyright (C) 2012-2016, Yann Collet. BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php) ...
7-Zip,支持Brotli,Fast-LZMA2,Lizard,LZ4,LZ5和Zstandard自述文件这是7-Zip ZS的Github页面,支持其他编解码器。 因此,可以在以下位置使用所使用的库:多线程库您可以通过两种方式安装它:在GUI中进行附加设置的完整安装程序,以及修改后的Explorer上下文菜单,仅用于现有7-Zip安装的编解码器插件(无需更改GUI,也无需进行...
手头上的AR9331核心板上使用的是8MB的dataflash,而标配的MR3220-V2路由是4MB,为此我们需要修改: trunk/tools/firmware-utils/src/mktplinkfw中MR3220-V2配置为8MB .id = "TL-MR3220v2", .hw_id = HWID_TL_MR3220_V2, .hw_rev = 1, .layout_id = "4Mlzma", //改为 8Mlzma ...
不过在ZSTD的compres level >12以后,压缩率和压缩速度就不如LZMA2了,在需要高压缩率的场景,使用LZMA2是最好的选择。 经典的LZMA2在多线程大字典的时候,没有几十个G的内存顶不住 受到ZSTD中并行缓冲基数匹配查找器的启发,conor42大佬对LZMA2进行了一次深度赋能,解决了LZMA2吃内存的痛点。就算把字典开到最大,内...
Fast LZMA2v1.0.1 is a LZMA2 compression algorithm, 20% to 100% faster than normal LZMA2 at levels 5 and above, but with a slightly lower compression ratio. It uses a parallel buffered radix matchfinder and some optimizations from Zstandard. The codec uses much less additional memory per ...