diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/snowdec.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/snowdec.c b/libavcodec/snowdec.c index 1dccc638d8..58a80b39c6 100644 --- a/libavcodec/snowdec.c +++ b/libavcodec/snowdec.c @@ -327,6 +327,11 @@ static int decode_header(SnowContext *s){ return -1; } + if (s->chroma_h_shift != 1 || s->chroma_v_shift != 1) { + av_log(s->avctx, AV_LOG_ERROR, "Invalid chroma shift\n"); + return AVERROR_PATCHWELCOME; + } + s->qlog += get_symbol(&s->c, s->header_state, 1); s->mv_scale += get_symbol(&s->c, s->header_state, 1); s->qbias += get_symbol(&s->c, s->header_state, 1); |