From 3a4d8281c64b6cb2a787e6e7142bd51deb356644 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Tue, 17 Nov 2015 17:01:58 +0100
Subject: avformat/genh: Fix tools/probetest failure

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/genh.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavformat/genh.c b/libavformat/genh.c
index 260e32064f..d8723d51a3 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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