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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-11-11 19:02:05 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-11-11 19:02:31 +0100 |
| commit | 26452e24ed1a93047226aed7830111abd24cfee3 (patch) | |
| tree | 69c2b6f737457f7c3af9718e3f132918ad3d38a0 /libavcodec/snow.c | |
| parent | b7b7e2348c07498f373d3b14a13615de151b2e7e (diff) | |
snow: fix edge emu switch
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/snow.c')
| -rw-r--r-- | libavcodec/snow.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/snow.c b/libavcodec/snow.c index a4fe8b603a..2f3ddbee18 100644 --- a/libavcodec/snow.c +++ b/libavcodec/snow.c @@ -343,8 +343,8 @@ void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, sx += (mx>>4) - (HTAPS_MAX/2-1); sy += (my>>4) - (HTAPS_MAX/2-1); src += sx + sy*stride; - if( (unsigned)sx >= w - b_w - (HTAPS_MAX-2) - || (unsigned)sy >= h - b_h - (HTAPS_MAX-2)){ + if( (unsigned)sx >= FFMAX(w - b_w - (HTAPS_MAX-2), 0) + || (unsigned)sy >= FFMAX(h - b_h - (HTAPS_MAX-2), 0)){ s->dsp.emulated_edge_mc(tmp + MB_SIZE, src, stride, b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1, sx, sy, w, h); src= tmp + MB_SIZE; } |