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| author | Michael Niedermayer <michaelni@gmx.at> | 2008-05-27 23:41:10 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2008-05-27 23:41:10 +0000 |
| commit | 540c5220ffafce9038b1f0c96cb02382d0ab126e (patch) | |
| tree | feb2ed5c1a006b43910a44b747bc5dcf5fa76851 | |
| parent | aa7205bcf1688b6f35f2391441732a9ccbf0f019 (diff) | |
| download | ffmpeg-540c5220ffafce9038b1f0c96cb02382d0ab126e.tar.gz | |
Check dia size a little more. Fixes CID80.
Originally committed as revision 13481 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/motion_est.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/libavcodec/motion_est.c b/libavcodec/motion_est.c index 54bc93da38..b97b441305 100644 --- a/libavcodec/motion_est.c +++ b/libavcodec/motion_est.c @@ -235,6 +235,12 @@ void ff_init_me(MpegEncContext *s){ MotionEstContext * const c= &s->me; int cache_size= FFMIN(ME_MAP_SIZE>>ME_MAP_SHIFT, 1<<ME_MAP_SHIFT); int dia_size= FFMAX(FFABS(s->avctx->dia_size)&255, FFABS(s->avctx->pre_dia_size)&255); + + if(FFMIN(s->avctx->dia_size, s->avctx->pre_dia_size) < -ME_MAP_SIZE){ + av_log(s->avctx, AV_LOG_ERROR, "ME_MAP size is too small for SAB diamond\n"); + return -1; + } + c->avctx= s->avctx; if(cache_size < 2*dia_size && !c->stride){ |