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| author | Paul B Mahol <onemda@gmail.com> | 2019-10-13 17:23:10 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-05-04 18:42:52 +0200 |
| commit | 3ee76a3ddb6773eb3adee5f9fcd5848d26509689 (patch) | |
| tree | 39d82043b673f7981b06e79e80094716734d1cf2 | |
| parent | c1ce4fba515628096efb93247f5f24a62a91ba64 (diff) | |
| download | ffmpeg-3ee76a3ddb6773eb3adee5f9fcd5848d26509689.tar.gz | |
avfilter/vf_edgedetect: check if height is big enough
Fixes #8260
(cherry picked from commit ccf4ab8c9aca0aee66bcc2914031a9c97ac0eeb8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavfilter/vf_edgedetect.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/libavfilter/vf_edgedetect.c b/libavfilter/vf_edgedetect.c index 173f9fe161..49556f33db 100644 --- a/libavfilter/vf_edgedetect.c +++ b/libavfilter/vf_edgedetect.c @@ -122,7 +122,8 @@ static void gaussian_blur(AVFilterContext *ctx, int w, int h, int i, j; memcpy(dst, src, w); dst += dst_linesize; src += src_linesize; - memcpy(dst, src, w); dst += dst_linesize; src += src_linesize; + if (h > 1) + memcpy(dst, src, w); dst += dst_linesize; src += src_linesize; for (j = 2; j < h - 2; j++) { dst[0] = src[0]; dst[1] = src[1]; @@ -152,8 +153,10 @@ static void gaussian_blur(AVFilterContext *ctx, int w, int h, dst += dst_linesize; src += src_linesize; } - memcpy(dst, src, w); dst += dst_linesize; src += src_linesize; - memcpy(dst, src, w); + if (h > 2) + memcpy(dst, src, w); dst += dst_linesize; src += src_linesize; + if (h > 3) + memcpy(dst, src, w); } enum { |