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| author | Paul B Mahol <onemda@gmail.com> | 2019-10-13 17:23:10 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2019-10-13 17:24:09 +0200 |
| commit | ccf4ab8c9aca0aee66bcc2914031a9c97ac0eeb8 (patch) | |
| tree | a08c69402255ee8b3ea3926bb70e57f039b8426d /libavfilter/vf_edgedetect.c | |
| parent | 4f4334bcbcf177739fc0e159683408aeed66edc5 (diff) | |
| download | ffmpeg-ccf4ab8c9aca0aee66bcc2914031a9c97ac0eeb8.tar.gz | |
avfilter/vf_edgedetect: check if height is big enough
Fixes #8260
Diffstat (limited to 'libavfilter/vf_edgedetect.c')
| -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 a0ddcbbf5c..11a31fa4ff 100644 --- a/libavfilter/vf_edgedetect.c +++ b/libavfilter/vf_edgedetect.c @@ -150,7 +150,8 @@ 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]; @@ -180,8 +181,10 @@ 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 { |