mod_brotli: Comment on the default choice (0) for BROTLI_PARAM_LGBLOCK.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1790860 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/modules/filters/mod_brotli.c b/modules/filters/mod_brotli.c
index dedcdf367ba4840c1f0dea7e2b64af7fba5a52c9..b2ab8c6bd06881191cff0a84b392940ecde25fa0 100644 (file)
--- a/modules/filters/mod_brotli.c
+++ b/modules/filters/mod_brotli.c
@@ -53,6 +53,10 @@ static void *create_server_config(apr_pool_t *p, server_rec *s)
      */
     conf->quality = 5;
     conf->lgwin = 18;
+    /* Zero is a special value for BROTLI_PARAM_LGBLOCK that allows
+     * Brotli to automatically select the optimal input block size based
+     * on other encoder parameters.  See enc/quality.h: ComputeLgBlock().
+     */
     conf->lgblock = 0;
     conf->etag_mode = ETAG_MODE_ADDSUFFIX;