From: dosomder <dosomder@users.noreply.github.com>
Date: Sat, 12 Mar 2016 22:37:04 +0000 (+0100)
Subject: Use LZ4_loadDict
X-Git-Tag: v3.1.901a~9^2~10^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3724bdfefc5148c94b068d4f35f89863bfd72695;p=thirdparty%2Flibarchive.git

Use LZ4_loadDict

dict was saved but never loaded. Gave a minor compression improvement
with a 8868100 bytes test file and compression-level 1
---

diff --git a/libarchive/archive_write_add_filter_lz4.c b/libarchive/archive_write_add_filter_lz4.c
index 06ea71373..15a99b095 100644
--- a/libarchive/archive_write_add_filter_lz4.c
+++ b/libarchive/archive_write_add_filter_lz4.c
@@ -565,6 +565,8 @@ drive_compressor_dependence(struct archive_write_filter *f, const char *p,
 				return (ARCHIVE_FATAL);
 			}
 		}
+		else
+			LZ4_loadDictHC(data->lz4_stream, data->in_buffer_allocated, DICT_SIZE);
 
 #if LZ4_VERSION_MAJOR >= 1 && LZ4_VERSION_MINOR >= 7
 		outsize = LZ4_compress_HC_continue(
@@ -587,6 +589,8 @@ drive_compressor_dependence(struct archive_write_filter *f, const char *p,
 				return (ARCHIVE_FATAL);
 			}
 		}
+		else
+			LZ4_loadDict(data->lz4_stream, data->in_buffer_allocated, DICT_SIZE);
 
 #if LZ4_VERSION_MAJOR >= 1 && LZ4_VERSION_MINOR >= 7
 		outsize = LZ4_compress_fast_continue(