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-rw-r--r--libavformat/genh.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/genh.c b/libavformat/genh.c
index 260e320..d8723d5 100644
--- a/libavformat/genh.c
+++ b/libavformat/genh.c
@@ -32,6 +32,8 @@ static int genh_probe(AVProbeData *p)
{
if (AV_RL32(p->buf) != MKTAG('G','E','N','H'))
return 0;
+ if (AV_RL32(p->buf+4) <= 0 || AV_RL32(p->buf+4) > 0xFFFF) // channels
+ return 0;
return AVPROBE_SCORE_MAX / 3 * 2;
}
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