From b61733f61ff2f61b1208fb661e278f704680d6a6 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Sat, 23 Sep 2023 22:46:09 +0200
Subject: [PATCH] avcodec/notchlc: make variables that can be negative as
 signed

---
 libavcodec/notchlc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/libavcodec/notchlc.c b/libavcodec/notchlc.c
index d973c83ac7..0feb0918f0 100644
--- a/libavcodec/notchlc.c
+++ b/libavcodec/notchlc.c
@@ -76,12 +76,13 @@ static int lz4_decompress(AVCodecContext *avctx,
                           GetByteContext *gb,
                           PutByteContext *pb)
 {
-    unsigned reference_pos, match_length, delta, pos = 0;
+    unsigned reference_pos, delta, pos = 0;
     uint8_t history[64 * 1024];
+    int match_length;
 
     while (bytestream2_get_bytes_left(gb) > 0) {
         uint8_t token = bytestream2_get_byte(gb);
-        unsigned num_literals = token >> 4;
+        int num_literals = token >> 4;
 
         if (num_literals == 15) {
             unsigned char current;