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videodsp: assert that linesize is larger than width 

Suggested-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-07-08 00:49:04 +02:00
parent 42e7a5b3c7
commit b8c438e762
2 changed files with 4 additions and 0 deletions
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2
libavcodec/videodsp_template.c
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@ -32,6 +32,8 @@ void FUNC(ff_emulated_edge_mc)(uint8_t *buf, const uint8_t *src,
if (!w || !h)
return;
av_assert2(block_w * sizeof(pixel) <= FFABS(buf_linesize));
if (src_y >= h) {
src -= src_y * src_linesize;
src += (h - 1) * src_linesize;

2
libavcodec/x86/videodsp_init.c
View File

@ -162,6 +162,8 @@ static av_always_inline void emulated_edge_mc(uint8_t *dst, const uint8_t *src,
if (!w || !h)
return;
av_assert2(block_w <= FFABS(dst_stride));
if (src_y >= h) {
src -= src_y*src_stride;
src_y_add = h - 1;