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libswscale/swscale: initialize all dst plane pointers in sws_receive_slice() 

Fixes valgrind warnings about use of uninitialised values.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2021-09-06 12:00:51 -03:00
parent c655a734b1
commit 5fe648d04a
1 changed files with 3 additions and 3 deletions
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6
libswscale/swscale.c
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@ -1160,9 +1160,9 @@ int sws_receive_slice(struct SwsContext *c, unsigned int slice_start,
return ret;
}
for (int i = 0; i < FF_ARRAY_ELEMS(dst) && c->frame_dst->data[i]; i++) {
dst[i] = c->frame_dst->data[i] +
c->frame_dst->linesize[i] * (slice_start >> c->chrDstVSubSample);
for (int i = 0; i < FF_ARRAY_ELEMS(dst); i++) {
ptrdiff_t offset = c->frame_dst->linesize[i] * (slice_start >> c->chrDstVSubSample);
dst[i] = FF_PTR_ADD(c->frame_dst->data[i], offset);
}
return scale_internal(c, (const uint8_t * const *)c->frame_src->data,