From d82767b3f5ece5176efd13d1b9918c9cd8f67961 Mon Sep 17 00:00:00 2001
From: WyattBlue <wyattblue@auto-editor.com>
Date: Wed, 21 Jan 2026 16:43:06 -0500
Subject: [PATCH] Avoid using strncpy

---
 av/filter/loudnorm_impl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/av/filter/loudnorm_impl.c b/av/filter/loudnorm_impl.c
index f6e22e4ce..c4e182981 100644
--- a/av/filter/loudnorm_impl.c
+++ b/av/filter/loudnorm_impl.c
@@ -36,7 +36,9 @@ static void logging_callback(void *ptr, int level, const char *fmt, va_list vl)
         pthread_mutex_lock(&json_mutex);
         #endif
 
-        strncpy(json_buffer, json_start, sizeof(json_buffer) - 1);
+        size_t len = strnlen(json_start, sizeof(json_buffer) - 1);
+        memcpy(json_buffer, json_start, len);
+        json_buffer[len] = '\0';
         json_captured = 1;
 
         #ifdef _WIN32