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An Extremely Fast Compression Algorithm.

C 100.00%

rle fast compression-algorithm c

xrle's Introduction

xrle - eXtreme Run Length Encoding

xrle is a compression algorithm inspired by RLE64 and lrrle. Compared to RLE64 and lrrle 64 bit variant,xrle is faster while having better compression ratio.

Benchmark

police.bmp

Compressor	Compressed size	Ratio	Encoding speed	Decoding speed
xrle	3827870	x40.059	7652 MB/s	5171 MB/s
RLE64	5007102	x30.624	2354 MB/s	2424 MB/s
lrrle,64	5007102	x30.624	4894 MB/s	5151 MB/s
lrrle,256	12097294	x12.676	9194 MB/s	5023 MB/s
memcpy	153339294	x 1.000	5333 MB/s	-

Compile

gcc -c -O3 xrle.c -o xrle.o

For some reason clang produces unoptimized executable.See here.

License

BSD 2-Clause

xrle's People

Stargazers

Watchers

Forkers

vzool deltabeard lilili-lilili01 toryder

xrle's Issues

[Feature Request]: Example Required

Hi, can you provide us with an example of compress and decompress a file or a text?

Thanks

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