diff options
| -rw-r--r-- | libavformat/lvfdec.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/libavformat/lvfdec.c b/libavformat/lvfdec.c index a809c6767b..d4bad12cc3 100644 --- a/libavformat/lvfdec.c +++ b/libavformat/lvfdec.c @@ -25,9 +25,13 @@ static int lvf_probe(AVProbeData *p) { - if (AV_RL32(p->buf) == MKTAG('L', 'V', 'F', 'F')) - return AVPROBE_SCORE_EXTENSION; - return 0; + if (AV_RL32(p->buf) != MKTAG('L', 'V', 'F', 'F')) + return 0; + + if (!AV_RL32(p->buf + 16) || AV_RL32(p->buf + 16) > 256) + return 0; + + return AVPROBE_SCORE_EXTENSION; } static int lvf_read_header(AVFormatContext *s) |