From 93a422ac4847bcdc4bf97496bb5eeffb14da6c54 Mon Sep 17 00:00:00 2001
From: Francesc Alted <francesc@blosc.org>
Date: Thu, 21 Mar 2024 10:50:14 +0100
Subject: [PATCH] Do not try to catch too far matches for clevel 1

---
 blosc/blosclz.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/blosc/blosclz.c b/blosc/blosclz.c
index 00eda33b0..f0c6e38c6 100644
--- a/blosc/blosclz.c
+++ b/blosc/blosclz.c
@@ -438,7 +438,7 @@ int blosclz_compress(const int clevel, const void* input, int length,
   // Minimum lengths for encoding (normally it is good to match the shift value)
   unsigned minlen = 3;
 
-  uint8_t hashlog_[10] = {0, HASH_LOG - 1, HASH_LOG - 1, HASH_LOG, HASH_LOG,
+  uint8_t hashlog_[10] = {0, HASH_LOG - 2, HASH_LOG - 1, HASH_LOG, HASH_LOG,
                           HASH_LOG, HASH_LOG, HASH_LOG, HASH_LOG, HASH_LOG};
   uint8_t hashlog = hashlog_[clevel];