[FFmpeg-cvslog] swresample/rematrix_template: Fix integer overflow in mix8to2

Michael Niedermayer git at videolan.org
Mon Jun 10 03:03:47 CEST 2013


ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Mon Jun 10 02:46:03 2013 +0200| [d62030ffcaf14dd801918fe26e670d68fdc21984] | committer: Michael Niedermayer

swresample/rematrix_template: Fix integer overflow in mix8to2

Fixes: CID1030352
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d62030ffcaf14dd801918fe26e670d68fdc21984
---

 libswresample/rematrix_template.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libswresample/rematrix_template.c b/libswresample/rematrix_template.c
index 6e7e686..95a3b9a 100644
--- a/libswresample/rematrix_template.c
+++ b/libswresample/rematrix_template.c
@@ -76,7 +76,7 @@ static void RENAME(mix8to2)(SAMPLE **out, const SAMPLE **in, COEFF *coeffp, inte
     int i;
 
     for(i=0; i<len; i++) {
-        INTER t = in[2][i]*coeffp[0*8+2] + in[3][i]*coeffp[0*8+3];
+        INTER t = in[2][i]*(INTER)coeffp[0*8+2] + in[3][i]*(INTER)coeffp[0*8+3];
         out[0][i] = R(t + in[0][i]*(INTER)coeffp[0*8+0] + in[4][i]*(INTER)coeffp[0*8+4] + in[6][i]*(INTER)coeffp[0*8+6]);
         out[1][i] = R(t + in[1][i]*(INTER)coeffp[1*8+1] + in[5][i]*(INTER)coeffp[1*8+5] + in[7][i]*(INTER)coeffp[1*8+7]);
     }



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