avcodec/x86/mpegvideoenc_template: fix integer overflow

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago · c25d2cd20b
parent 575b957758
commit c25d2cd20b
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/x86/mpegvideoenc_template.c
+++ b/libavcodec/x86/mpegvideoenc_template.c
@ -216,7 +216,7 @@ static int RENAME(dct_quantize)(MpegEncContext *s,
        "psubusw "MM"1, "MM"4               \n\t"
        "packuswb "MM"4, "MM"4              \n\t"
 #if COMPILE_TEMPLATE_SSE2
-        "packuswb "MM"4, "MM"4              \n\t"
+        "packsswb "MM"4, "MM"4              \n\t"
 #endif
        "movd "MM"4, %0                     \n\t" // *overflow
        : "=g" (*overflow)