vf_tinterlace: check av_image_get_linesize() return value

Fixes CID703717 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Michael Niedermayer committed 14 years ago

Commit ac2a3a71 parent 03764f61 file · +4 −0Browse files

Showing the changes to libavfilter (1 of 1 file). Show all

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@@ -188,6 +188,10 @@ void copy_picture_field(uint8_t *dst[4], int dst_linesize[4], · 187 unmodified lines
188	188	int linesize = av_image_get_linesize(format, w, plane);
189	189	uint8_t *dstp = dst[plane];
190	190	const uint8_t *srcp = src[plane];
	191	+
	192	+ if (linesize < 0)
	193	+ return;
	194	+
191	195	lines /= k;
192	196	if (src_field == FIELD_LOWER)
193	197	srcp += src_linesize[plane];

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