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vf_tinterlace: check av_image_get_linesize() return value

Fixes CID703717
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-03 02:21:49 +01:00
parent 03764f6735
commit ac2a3a7a05

View File

@ -188,6 +188,10 @@ void copy_picture_field(uint8_t *dst[4], int dst_linesize[4],
int linesize = av_image_get_linesize(format, w, plane);
uint8_t *dstp = dst[plane];
const uint8_t *srcp = src[plane];
if (linesize < 0)
return;
lines /= k;
if (src_field == FIELD_LOWER)
srcp += src_linesize[plane];