1*e47783fdSXin LiZopfli Compression Algorithm is a compression library programmed in C to perform 2*e47783fdSXin Livery good, but slow, deflate or zlib compression. 3*e47783fdSXin Li 4*e47783fdSXin LiThe basic function to compress data is ZopfliCompress in zopfli.h. Use the 5*e47783fdSXin LiZopfliOptions object to set parameters that affect the speed and compression. 6*e47783fdSXin LiUse the ZopfliInitOptions function to place the default values in the 7*e47783fdSXin LiZopfliOptions first. 8*e47783fdSXin Li 9*e47783fdSXin LiZopfliCompress supports deflate, gzip and zlib output format with a parameter. 10*e47783fdSXin LiTo support only one individual format, you can instead use ZopfliDeflate in 11*e47783fdSXin Lideflate.h, ZopfliZlibCompress in zlib_container.h or ZopfliGzipCompress in 12*e47783fdSXin Ligzip_container.h. 13*e47783fdSXin Li 14*e47783fdSXin LiZopfliDeflate creates a valid deflate stream in memory, see: 15*e47783fdSXin Lihttp://www.ietf.org/rfc/rfc1951.txt 16*e47783fdSXin LiZopfliZlibCompress creates a valid zlib stream in memory, see: 17*e47783fdSXin Lihttp://www.ietf.org/rfc/rfc1950.txt 18*e47783fdSXin LiZopfliGzipCompress creates a valid gzip stream in memory, see: 19*e47783fdSXin Lihttp://www.ietf.org/rfc/rfc1952.txt 20*e47783fdSXin Li 21*e47783fdSXin LiThis library can only compress, not decompress. Existing zlib or deflate 22*e47783fdSXin Lilibraries can decompress the data. 23*e47783fdSXin Li 24*e47783fdSXin Lizopfli_bin.c is separate from the library and contains an example program to 25*e47783fdSXin Licreate very well compressed gzip files. Currently the makefile builds this 26*e47783fdSXin Liprogram with the library statically linked in. 27*e47783fdSXin Li 28*e47783fdSXin LiThe source code of Zopfli is under src/zopfli. Build instructions: 29*e47783fdSXin Li 30*e47783fdSXin LiTo build zopfli, compile all .c source files under src/zopfli to a single binary 31*e47783fdSXin Liwith C, and link to the standard C math library, e.g.: 32*e47783fdSXin Ligcc src/zopfli/*.c -O2 -W -Wall -Wextra -Wno-unused-function -ansi -pedantic -lm -o zopfli 33*e47783fdSXin Li 34*e47783fdSXin LiA makefile is provided as well, but only for linux. Use "make" to build the 35*e47783fdSXin Libinary, "make libzopfli" to build it as a shared library. For other platforms, 36*e47783fdSXin Liplease use the build instructions above instead. 37*e47783fdSXin Li 38*e47783fdSXin LiZopfli Compression Algorithm was created by Lode Vandevenne and Jyrki 39*e47783fdSXin LiAlakuijala, based on an algorithm by Jyrki Alakuijala. 40