From fcdf9a8a5632dcdd6bac3068e7eb2098d9e13246 Mon Sep 17 00:00:00 2001
From: Kostya Shishkov <kostya.shishkov@gmail.com>
Date: Sat, 11 Nov 2023 12:06:13 +0100
Subject: [PATCH] gifdec: fix transparent frame decoding

---
 nihav-commonfmt/src/codecs/gif.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/nihav-commonfmt/src/codecs/gif.rs b/nihav-commonfmt/src/codecs/gif.rs
index ccc21c6..a5b91d3 100644
--- a/nihav-commonfmt/src/codecs/gif.rs
+++ b/nihav-commonfmt/src/codecs/gif.rs
@@ -249,10 +249,9 @@ impl NADecoder for GIFDecoder {
                     .zip(self.dbuf.chunks_exact(width)) {
                 for (dst, &src) in dline[left..][..width].iter_mut().zip(sline.iter()) {
                     if src != tpix {
-                        *dst = tpix;
+                        *dst = src;
                     }
                 }
-                dline[left..][..width].copy_from_slice(sline);
             }
         } else {
             for (dline, sline) in self.frame.chunks_exact_mut(self.width).skip(top)
-- 
2.30.2