Traneptora/FFmpeg
1
Fork 0
forked from FFmpeg/FFmpeg
Code Pull requests Activity

swscale/utils: dont divide by zero with zero vectors

Browse source 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-10-01 00:27:28 +02:00
parent 01e3340fb6
commit 2e2a2d8801
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
libswscale/utils.c
View file

@ -622,6 +622,10 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
sum += filter[i * filterSize + j];
}
sum = (sum + one / 2) / one;
if (!sum) {
av_log(NULL, AV_LOG_WARNING, "SwScaler: zero vector in scaling\n");
sum = 1;
}
for (j = 0; j < *outFilterSize; j++) {
int64_t v = filter[i * filterSize + j] + error;
int intV = ROUNDED_DIV(v, sum);