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| author | Martin Storsjö <martin@martin.st> | 2013-09-11 22:53:15 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2013-09-12 10:54:27 +0300 |
| commit | 17d57848fc14e82f76a65ffb25c90f2f011dc4a0 (patch) | |
| tree | b72a5bde6617c9326c74dfe95a0ef2fcc368dc1e | |
| parent | 459f2b393a3f89ed08d10fbceb4738d1429f268e (diff) | |
| download | ffmpeg-17d57848fc14e82f76a65ffb25c90f2f011dc4a0.tar.gz | |
mpc8: Make sure the first stream exists before parsing the seek table
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
| -rw-r--r-- | libavformat/mpc8.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/mpc8.c b/libavformat/mpc8.c index 29001b19f6..3564e81c32 100644 --- a/libavformat/mpc8.c +++ b/libavformat/mpc8.c @@ -139,6 +139,11 @@ static void mpc8_parse_seektable(AVFormatContext *s, int64_t off) int i, t, seekd; GetBitContext gb; + if (s->nb_streams == 0) { + av_log(s, AV_LOG_ERROR, "No stream added before parsing seek table\n"); + return; + } + avio_seek(s->pb, off, SEEK_SET); mpc8_get_chunk_header(s->pb, &tag, &size); if(tag != TAG_SEEKTABLE){ |