From 37a8d49eaa4156431ac6103f6ef7783072c7619e Mon Sep 17 00:00:00 2001
From: Edward Hervey <edward@centricular.com>
Date: Mon, 6 Jan 2025 09:10:08 +0100
Subject: [PATCH] siren: Cast shift mask to unsigned value

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8229>
---
 subprojects/gst-plugins-bad/gst/siren/encoder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/subprojects/gst-plugins-bad/gst/siren/encoder.c b/subprojects/gst-plugins-bad/gst/siren/encoder.c
index 8bb340f647..8db808aeb9 100644
--- a/subprojects/gst-plugins-bad/gst/siren/encoder.c
+++ b/subprojects/gst-plugins-bad/gst/siren/encoder.c
@@ -210,7 +210,7 @@ Siren7_EncodeFrame (SirenEncoder encoder, unsigned char *DataIn,
   }
 
   if (checksum_bits > 0) {
-    BufferOut[idx - 1] &= (-1 << checksum_bits);
+    BufferOut[idx - 1] &= (((unsigned short) -1) << checksum_bits);
     sum = 0;
     idx = 0;
     do {