From 84357c09eff91397a9429fe0a29c105d1a278557 Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Mon, 15 Sep 2025 22:18:52 -0300
Subject: [PATCH] avcodec/x86/pngdsp: add missing emms at the end of
 add_png_paeth_prediction

Fixes unpredictable behavior with floats.

Signed-off-by: James Almer <jamrial@gmail.com>
(cherry picked from commit 57a29f2e7dd2374a1df27316c6cf7c0225e86758)
---
 libavcodec/x86/pngdsp.asm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/x86/pngdsp.asm b/libavcodec/x86/pngdsp.asm
index 50e4255dec..726e6bc712 100644
--- a/libavcodec/x86/pngdsp.asm
+++ b/libavcodec/x86/pngdsp.asm
@@ -163,6 +163,7 @@ cglobal add_png_paeth_prediction, 5, 7, %1, dst, src, top, w, bpp, end, cntr
     dec              cntrq
     jge .bpp_loop
     POP               dstq
+    emms
     RET
 %endmacro