moving LRM parameters out of experimental section

into "normal" range,
start pinned at 160.

diff --git a/lib/zstd.h b/lib/zstd.h
index 3ea049eb6db4e087cd84ff26fd686235f42ab72a..4b1b92c18d2e324e165bc494efafedcdd9a72a08 100644 (file)
--- a/lib/zstd.h
+++ b/lib/zstd.h
@@ -990,6 +990,40 @@ typedef enum {
                               * resulting in stronger and slower compression.
                               * Special: value 0 means "do not change strategy". */
 
+    ZSTD_p_enableLongDistanceMatching=160, /* Enable long distance matching.
+                                         * This parameter is designed to improve the compression
+                                         * ratio for large inputs with long distance matches.
+                                         * This increases the memory usage as well as window size.
+                                         * Note: setting this parameter sets all the LDM parameters
+                                         * as well as ZSTD_p_windowLog. It should be set after
+                                         * ZSTD_p_compressionLevel and before ZSTD_p_windowLog and
+                                         * other LDM parameters. Setting the compression level
+                                         * after this parameter overrides the window log, though LDM
+                                         * will remain enabled until explicitly disabled. */
+    ZSTD_p_ldmHashLog,       /* Size of the table for long distance matching, as a power of 2.
+                              * Larger values increase memory usage and compression ratio, but decrease
+                              * compression speed.
+                              * Must be clamped between ZSTD_HASHLOG_MIN and ZSTD_HASHLOG_MAX
+                              * (default: windowlog - 7).
+                              * Special: value 0 means "do not change ldmHashLog". */
+    ZSTD_p_ldmMinMatch,      /* Minimum size of searched matches for long distance matcher.
+                              * Larger/too small values usually decrease compression ratio.
+                              * Must be clamped between ZSTD_LDM_MINMATCH_MIN
+                              * and ZSTD_LDM_MINMATCH_MAX (default: 64).
+                              * Special: value 0 means "do not change ldmMinMatch". */
+    ZSTD_p_ldmBucketSizeLog, /* Log size of each bucket in the LDM hash table for collision resolution.
+                              * Larger values usually improve collision resolution but may decrease
+                              * compression speed.
+                              * The maximum value is ZSTD_LDM_BUCKETSIZELOG_MAX (default: 3).
+                              * note : 0 is a valid value */
+    ZSTD_p_ldmHashEveryLog,  /* Frequency of inserting/looking up entries in the LDM hash table.
+                              * The default is MAX(0, (windowLog - ldmHashLog)) to
+                              * optimize hash table usage.
+                              * Larger values improve compression speed. Deviating far from the
+                              * default value will likely result in a decrease in compression ratio.
+                              * Must be clamped between 0 and ZSTD_WINDOWLOG_MAX - ZSTD_HASHLOG_MIN.
+                              * note : 0 is a valid value */
+
     /* frame parameters */
     ZSTD_p_contentSizeFlag=200, /* Content size will be written into frame header _whenever known_ (default:1)
                               * Content size must be known at the beginning of compression,
@@ -1026,39 +1060,6 @@ typedef enum {
     ZSTD_p_forceMaxWindow=1100, /* Force back-reference distances to remain < windowSize,
                               * even when referencing into Dictionary content (default:0) */
 
-    ZSTD_p_enableLongDistanceMatching=1200, /* Enable long distance matching.
-                                         * This parameter is designed to improve the compression
-                                         * ratio for large inputs with long distance matches.
-                                         * This increases the memory usage as well as window size.
-                                         * Note: setting this parameter sets all the LDM parameters
-                                         * as well as ZSTD_p_windowLog. It should be set after
-                                         * ZSTD_p_compressionLevel and before ZSTD_p_windowLog and
-                                         * other LDM parameters. Setting the compression level
-                                         * after this parameter overrides the window log, though LDM
-                                         * will remain enabled until explicitly disabled. */
-    ZSTD_p_ldmHashLog,       /* Size of the table for long distance matching, as a power of 2.
-                              * Larger values increase memory usage and compression ratio, but decrease
-                              * compression speed.
-                              * Must be clamped between ZSTD_HASHLOG_MIN and ZSTD_HASHLOG_MAX
-                              * (default: windowlog - 7).
-                              * Special: value 0 means "do not change ldmHashLog". */
-    ZSTD_p_ldmMinMatch,      /* Minimum size of searched matches for long distance matcher.
-                              * Larger/too small values usually decrease compression ratio.
-                              * Must be clamped between ZSTD_LDM_MINMATCH_MIN
-                              * and ZSTD_LDM_MINMATCH_MAX (default: 64).
-                              * Special: value 0 means "do not change ldmMinMatch". */
-    ZSTD_p_ldmBucketSizeLog, /* Log size of each bucket in the LDM hash table for collision resolution.
-                              * Larger values usually improve collision resolution but may decrease
-                              * compression speed.
-                              * The maximum value is ZSTD_LDM_BUCKETSIZELOG_MAX (default: 3).
-                              * note : 0 is a valid value */
-    ZSTD_p_ldmHashEveryLog,  /* Frequency of inserting/looking up entries in the LDM hash table.
-                              * The default is MAX(0, (windowLog - ldmHashLog)) to
-                              * optimize hash table usage.
-                              * Larger values improve compression speed. Deviating far from the
-                              * default value will likely result in a decrease in compression ratio.
-                              * Must be clamped between 0 and ZSTD_WINDOWLOG_MAX - ZSTD_HASHLOG_MIN.
-                              * note : 0 is a valid value */
 
 } ZSTD_cParameter;