Module: libav Branch: master Commit: 3a177a9cca924e097265b32f9282814f6b653e08
Author: Luca Barbato <[email protected]> Committer: Luca Barbato <[email protected]> Date: Fri May 2 00:21:23 2014 +0200 swscale: Fix an undefined behaviour Prevent a division by zero down the codepath. Sample-Id: 00001721-google Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: [email protected] --- libswscale/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libswscale/utils.c b/libswscale/utils.c index 6af41f8..fa00668 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -331,7 +331,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos, xDstInSrc = xInc - 0x10000; for (i = 0; i < dstW; i++) { - int xx = (xDstInSrc - ((filterSize - 2) << 16)) / (1 << 17); + int xx = (xDstInSrc - ((int64_t)(filterSize - 2) << 16)) / (1 << 17); int j; (*filterPos)[i] = xx; for (j = 0; j < filterSize; j++) { _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
