avformat/avidec: Detect index with too short entries

Fixes Ticket5498 Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 years ago · d08f2c172f
parent 7155bd1c94
commit d08f2c172f
1 changed files with 2 additions and 0 deletions
--- a/libavformat/avidec.c
+++ b/libavformat/avidec.c
@ -1699,6 +1699,8 @@ static int guess_ni_flag(AVFormatContext *s)
            size = avio_rl32(s->pb);
            if (get_stream_idx(tag) == i && pos + size > st->index_entries[1].pos)
                last_start = INT64_MAX;
+            if (get_stream_idx(tag) == i && size == st->index_entries[0].size + 8)
+                last_start = INT64_MAX;
        }

        if (st->index_entries[0].pos > last_start)