X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fdvdsubdec.c;h=e18113c20c0f84088d1c1e9cad80c0bdffa408a6;hb=ed1fe7b2feeb914750ffca2ed030738b3cdc4858;hp=4e9c0580f4cfd0e689001b38564cd403cd535c5b;hpb=bddb2343b6e594e312dadb5d21b408702929ae04;p=ffmpeg

diff --git a/libavcodec/dvdsubdec.c b/libavcodec/dvdsubdec.c
index 4e9c0580f4c..e18113c20c0 100644
--- a/libavcodec/dvdsubdec.c
+++ b/libavcodec/dvdsubdec.c
@@ -60,7 +60,7 @@ static void yuv_a_to_rgba(const uint8_t *ycbcr, const uint8_t *alpha, uint32_t *
         cb = *ycbcr++;
         YUV_TO_RGB1_CCIR(cb, cr);
         YUV_TO_RGB2_CCIR(r, g, b, y);
-        *rgba++ = (*alpha++ << 24) | (r << 16) | (g << 8) | b;
+        *rgba++ = ((unsigned)*alpha++ << 24) | (r << 16) | (g << 8) | b;
     }
 }