dvbsubdec: avoid undefined signed left shift in RGBA macro

6a4cf065 · Janne Grunau · ca085e66 · 6a4cf065
Commit 6a4cf065 authored Feb 03, 2012 by Janne Grunau
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dvbsubdec.c libavcodec/dvbsubdec.c +1 -1

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--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -150,7 +150,7 @@ static void png_save2(const char *filename, uint32_t *bitmap, int w, int h)
 }
 #endif

-#define RGBA(r,g,b,a) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
+#define RGBA(r,g,b,a) (((unsigned)(a) << 24) | ((r) << 16) | ((g) << 8) | (b))

 typedef struct DVBSubCLUT {
    int id;