Commit 49000e729 for imagemagick.org

commit 49000e7298fbfdd759ac2c46f740f40c2e9b7452
Author: Cristy <urban-warrior@imagemagick.org>
Date:   Sun Feb 8 12:24:55 2026 -0500

    https://github.com/ImageMagick/ImageMagick/issues/8563

diff --git a/coders/yuv.c b/coders/yuv.c
index 580c69849..3bc1a37da 100644
--- a/coders/yuv.c
+++ b/coders/yuv.c
@@ -767,7 +767,7 @@ static MagickBooleanType WriteYUVImage(const ImageInfo *image_info,Image *image,
                   GetPixelRed(yuv_image,p)));
               }
             p+=(ptrdiff_t) GetPixelChannels(yuv_image);
-            s++;
+            s+=(ptrdiff_t) GetPixelChannels(chroma_image);
           }
           if (image->previous == (Image *) NULL)
             {