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author | Thilo Borgmann <thilo.borgmann@mail.de> | 2022-04-27 11:37:12 +0200 |
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committer | Thilo Borgmann <thilo.borgmann@mail.de> | 2022-04-27 11:41:41 +0200 |
commit | 79286d3eb64b5ce56e30d88f2d34692adb3fcaf0 (patch) | |
tree | 06bad8285fa82694be3c38a094babc42187312c0 /libavfilter/vf_blurdetect.c | |
parent | 39f22df6cddadf2ab2298152ff0d821f4ca6d7ee (diff) | |
download | ffmpeg-79286d3eb64b5ce56e30d88f2d34692adb3fcaf0.tar.gz |
avfilter/vf_blurdetect: fix uninitialized variables and possible div by zero
Found-by: Coverity
Diffstat (limited to 'libavfilter/vf_blurdetect.c')
-rw-r--r-- | libavfilter/vf_blurdetect.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavfilter/vf_blurdetect.c b/libavfilter/vf_blurdetect.c index e29ed5041d..0e08ba96de 100644 --- a/libavfilter/vf_blurdetect.c +++ b/libavfilter/vf_blurdetect.c @@ -138,6 +138,7 @@ static float edge_width(BLRContext *blr, int i, int j, int8_t dir, int w, int h, case DIRECTION_VERTICAL: dX = 0; dY = 1; break; case DIRECTION_45UP: dX = 1; dY = -1; break; case DIRECTION_45DOWN: dX = 1; dY = 1; break; + default: dX = 1; dY = 1; break; } // determines if search in direction dX/dY is looking for a maximum or minimum @@ -227,7 +228,7 @@ static float calculate_blur(BLRContext *s, int w, int h, int hsub, int vsub, } } // if not enough edge pixels in a block, consider it smooth - if (block_total_width >= 2) { + if (block_total_width >= 2 && block_count) { blks[blkcnt] = block_total_width / block_count; blkcnt++; } |