RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2025-01-05 06:40:03 +00:00
Code Issues Projects Releases Wiki Activity

lavfi/blockdetect: Fix possible div by 0

Browse Source 
Found-by Covererity, CID 1504568, 1504569
This commit is contained in:
Thilo Borgmann 2022-06-04 13:45:30 +02:00
parent 11912f65ef
commit b7cea55730
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavfilter/vf_blockdetect.c
View File

@ -132,9 +132,11 @@ static float calculate_blockiness(BLKContext *s, int w, int h,
nonblock_count++; nonblock_count++;
} }
} }
if (block_count && nonblock_count) {
temp = (block / block_count) / (nonblock / nonblock_count); temp = (block / block_count) / (nonblock / nonblock_count);
ret = FFMAX(ret, temp); ret = FFMAX(ret, temp);
} }
}
// vertical blockiness (fixed height) // vertical blockiness (fixed height)
block_count = 0; block_count = 0;
@ -175,9 +177,11 @@ static float calculate_blockiness(BLKContext *s, int w, int h,
nonblock_count++; nonblock_count++;
} }
} }
if (block_count && nonblock_count) {
temp = (block / block_count) / (nonblock / nonblock_count); temp = (block / block_count) / (nonblock / nonblock_count);
ret = FFMAX(ret, temp); ret = FFMAX(ret, temp);
} }
}
// return highest value of horz||vert // return highest value of horz||vert
return ret; return ret;