The Z_RLE compression strategy in zlib
Z_RLE is implemented in zlib-220.127.116.11!
The original Z_RLE proposal
(including comparison tests)
The Z_RLE implementation
Non Z_RLE -related patches
The following applications are updated for testing Z_RLE under
This program was adapted for Z_RLE. This strategy is enabled via
the user option
zip23cos.zip for testing the new deflate.
This is a modified version of
that allows the user to select the zlib strategy and memory level
from the command line.
There are two additional user parameters in this zip:
-Z to select the zlib strategy
-M to select the zlib memory level (
The build flag
USE_ZLIB must be enabled.
Please do not send to Info-ZIP bug reports related to this version!
unzip-5.5 for testing the new inflate.
There is no need for a special, modified unzip to test the new inflate.
It is enough to build the original
with the build flag
Z_RLE appears to be about 2-10% slower than Z_HUFFMAN_ONLY;
this is probably a fair performance.
Last updated: 27 Feb 2004 by Cosmin Truta.