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| author | David Conrad <lessen42@gmail.com> | 2009-05-15 07:49:59 +0000 |
|---|---|---|
| committer | David Conrad <lessen42@gmail.com> | 2009-05-15 07:49:59 +0000 |
| commit | ebcf3b742bcc71355ddc7c1a83bb829425a9f754 (patch) | |
| tree | 6f5ef0cad5ce6d748a5ca33453ba1dbc1747c473 /libavcodec/vc1.c | |
| parent | e1316b19ea1ada3e93734a6d22f2305cb0c3d49f (diff) | |
Ensure that we don't read from invalid memory with B-frame qpel
Originally committed as revision 18839 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/vc1.c')
| -rw-r--r-- | libavcodec/vc1.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c index 3a5b447667..82bf8db0de 100644 --- a/libavcodec/vc1.c +++ b/libavcodec/vc1.c @@ -1818,8 +1818,8 @@ static void vc1_interp_mc(VC1Context *v) } if(v->rangeredfrm - || (unsigned)src_x > s->h_edge_pos - (mx&3) - 16 - || (unsigned)src_y > s->v_edge_pos - (my&3) - 16){ + || (unsigned)src_x > s->h_edge_pos - (mx&3) - 16 - s->mspel*3 + || (unsigned)src_y > s->v_edge_pos - (my&3) - 16 - s->mspel*3){ uint8_t *uvbuf= s->edge_emu_buffer + 19 * s->linesize; srcY -= s->mspel * (1 + s->linesize); |