Update LZMS compressor

[wimlib] / include / wimlib.h

diff --git a/include/wimlib.h b/include/wimlib.h
index c0aaf13bf2f46bb103976c7a0d2c2adb08e5b1dd..372bb760af96f9ad73beb09b8e60a8bffca2f680 100644 (file)
--- a/include/wimlib.h
+++ b/include/wimlib.h
@@ -4061,6 +4061,42 @@ struct wimlib_lzx_compressor_params {
        } alg_params;
 };
 
+/** LZMS compression parameters that can optionally be passed to
+ * wimlib_create_compressor() with the compression type
+ * ::WIMLIB_COMPRESSION_TYPE_LZMS.  */
+struct wimlib_lzms_compressor_params {
+       /** hdr.size Must be set to the size of this structure, in bytes.  */
+       struct wimlib_compressor_params_header hdr;
+
+       /** Minimum match length to output.  This must be at least 2.  Suggested
+        * value: 2  */
+       uint32_t min_match_length;
+
+       /** Maximum match length to output.  This must be at least @p
+        * min_match_length.  Suggested value: @p UINT32_MAX.  */
+       uint32_t max_match_length;
+
+       /** Matches with length (in bytes) greater than or equal to this value
+        * are immediately taken without spending time on minimum-cost
+        * measurements.  The minimum of @p max_match_length and @p
+        * nice_match_length may not exceed 65536.  Suggested value: 32.  */
+       uint32_t nice_match_length;
+
+       /** Maximum depth to search for matches at each position.  Suggested
+        * value: 50.  */
+       uint32_t max_search_depth;
+
+       /** Maximum number of potentially good matches to consider at each
+        * position.  Suggested value: 3.  */
+       uint32_t max_matches_per_pos;
+
+       /** Length of the array for the near-optimal LZ parsing algorithm.  This
+        * must be at least 1.  Suggested value: 1024.  */
+       uint32_t optim_array_length;
+
+       uint64_t reserved2[4];
+};
+
 /** Opaque compressor handle.  */
 struct wimlib_compressor;