diff options
Diffstat (limited to 'libavcodec/snow.c')
| -rw-r--r-- | libavcodec/snow.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/snow.c b/libavcodec/snow.c index ffdf1ffd02..ee0ae33a13 100644 --- a/libavcodec/snow.c +++ b/libavcodec/snow.c @@ -3625,6 +3625,11 @@ static int decode_header(SnowContext *s){ av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_type %d not supported", s->spatial_decomposition_type); return -1; } + if(FFMIN(s->avctx-> width>>s->chroma_h_shift, + s->avctx->height>>s->chroma_v_shift) >> (s->spatial_decomposition_count-1) <= 0){ + av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_count %d too large for size", s->spatial_decomposition_count); + return -1; + } s->qlog += get_symbol(&s->c, s->header_state, 1); s->mv_scale += get_symbol(&s->c, s->header_state, 1); |