From 26452e24ed1a93047226aed7830111abd24cfee3 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 11 Nov 2012 19:02:05 +0100 Subject: snow: fix edge emu switch Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/snow.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'libavcodec/snow.c') 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; } -- cgit v1.2.3