swscale: fix integer overflows in RGB pixel writing.

We're shifting individual components (8-bit, unsigned) left by 24, so making them unsigned should give the same results without the overflow. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
13 years ago · 77d88b872d
parent b4dc68803b
commit 77d88b872d
1 changed files with 2 additions and 2 deletions
--- a/libswscale/swscale.c
+++ b/libswscale/swscale.c
@ -920,8 +920,8 @@ YUV2PACKED16WRAPPER(yuv2, rgb48, bgr48be, PIX_FMT_BGR48BE)
 YUV2PACKED16WRAPPER(yuv2, rgb48, bgr48le, PIX_FMT_BGR48LE)

 static av_always_inline void
-yuv2rgb_write(uint8_t *_dest, int i, int Y1, int Y2,
-              int U, int V, int A1, int A2,
+yuv2rgb_write(uint8_t *_dest, int i, unsigned Y1, unsigned Y2,
+              unsigned U, unsigned V, unsigned A1, unsigned A2,
              const void *_r, const void *_g, const void *_b, int y,
              enum PixelFormat target, int hasAlpha)
 {