Fixes: 618/clusterfuzz-testcase-
6594990333493248
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
pb_mv_count = h263_get_modb(&s->gb, s->pb_frame, &cbpb);
cbpy = get_vlc2(&s->gb, ff_h263_cbpy_vlc.table, CBPY_VLC_BITS, 1);
+ if (cbpy < 0) {
+ av_log(s->avctx, AV_LOG_ERROR, "cbpy damaged at %d %d\n", s->mb_x, s->mb_y);
+ return SLICE_ERROR;
+ }
+
if(s->alt_inter_vlc==0 || (cbpc & 3)!=3)
cbpy ^= 0xF;