lzx_compress.c: adjust parameters for slightly stronger compression
authorEric Biggers <ebiggers3@gmail.com>
Sat, 19 Sep 2015 21:29:38 +0000 (16:29 -0500)
committerEric Biggers <ebiggers3@gmail.com>
Sun, 27 Sep 2015 14:41:30 +0000 (09:41 -0500)
src/lzx_compress.c

index f0edddd33aab3d706826b8db4f85fa7d07918133..47d8bf0be9714e7fe1a9a1f846d6f1cf9f92cff7 100644 (file)
@@ -2257,8 +2257,8 @@ lzx_create_compressor(size_t max_bufsize, unsigned compression_level,
                        c->impl = lzx_compress_lazy_16;
                else
                        c->impl = lzx_compress_lazy_32;
-               c->max_search_depth = (36 * compression_level) / 20;
-               c->nice_match_length = (72 * compression_level) / 20;
+               c->max_search_depth = (60 * compression_level) / 20;
+               c->nice_match_length = (80 * compression_level) / 20;
 
                /* lzx_compress_lazy() needs max_search_depth >= 2 because it
                 * halves the max_search_depth when attempting a lazy match, and
@@ -2277,7 +2277,7 @@ lzx_create_compressor(size_t max_bufsize, unsigned compression_level,
                /* Scale nice_match_length and max_search_depth with the
                 * compression level.  */
                c->max_search_depth = (24 * compression_level) / 50;
-               c->nice_match_length = (32 * compression_level) / 50;
+               c->nice_match_length = (48 * compression_level) / 50;
 
                /* Set a number of optimization passes appropriate for the
                 * compression level.  */