diff options
| author | Paul B Mahol <onemda@gmail.com> | 2019-10-13 18:23:10 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-05-04 21:00:05 +0300 |
| commit | ff1c55c91355257f66049fc9caba7953c1c2288f (patch) | |
| tree | 8bbd0ea0b33c644420435e58bdf4b8f4a0c0827f /libavfilter | |
| parent | 72bc9bd8ef493bd43db2f1dd92ddb1cb0b1f00b0 (diff) | |
avfilter/vf_edgedetect: check if height is big enough
Fixes #8260
(cherry picked from commit ccf4ab8c9aca0aee66bcc2914031a9c97ac0eeb8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavfilter')
| -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 { |