From a3611513d2bf465fd282d9dc45b3f72c79c232ad Mon Sep 17 00:00:00 2001
From: Vincent Rabaud <vrabaud@google.com>
Date: Tue, 14 Jun 2016 21:42:45 +0200
Subject: [PATCH] Revert an LZ77 boundary constant.

This is getting back to the old behavior which is actually better for
compression and speed with the latest patches.

Change-Id: I35884bab02589297c25d6e1e66dc5f13e05f7aa7
---
 src/enc/backward_references.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/enc/backward_references.c b/src/enc/backward_references.c
index 27886f30..de75611c 100644
--- a/src/enc/backward_references.c
+++ b/src/enc/backward_references.c
@@ -437,8 +437,7 @@ static int BackwardReferencesLz77(int xsize, int ysize,
     int len = 0;
     int j;
     HashChainFindCopy(hash_chain, i, &offset, &len);
-    // MIN_LENGTH+1 is empirically better than MIN_LENGTH.
-    if (len > MIN_LENGTH + 1) {
+    if (len > MIN_LENGTH) {
       const int len_ini = len;
       int max_reach = 0;
       assert(i + len < pix_count);