swscale: fix an implementation-defined unsigned-to-signed conversion

11 years ago · 60c4660ba0
parent d4a8a86c68
commit 60c4660ba0
1 changed files with 2 additions and 2 deletions
--- a/libswscale/swscale_unscaled.c
+++ b/libswscale/swscale_unscaled.c
@ -1187,9 +1187,9 @@ int attribute_align_arg sws_scale(struct SwsContext *c,

    if (usePal(c->srcFormat)) {
        for (i = 0; i < 256; i++) {
-            int p, r, g, b, y, u, v;
+            int r, g, b, y, u, v;
            if (c->srcFormat == AV_PIX_FMT_PAL8) {
-                p = ((const uint32_t *)(srcSlice[1]))[i];
+                uint32_t p = ((const uint32_t *)(srcSlice[1]))[i];
                r = (p >> 16) & 0xFF;
                g = (p >>  8) & 0xFF;
                b =  p        & 0xFF;