[FFmpeg-cvslog] avformat/genh: Fix tools/probetest failure

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Tue Nov 17 17:01:58 2015 +0100| [3a4d8281c64b6cb2a787e6e7142bd51deb356644] | committer: Michael Niedermayer

avformat/genh: Fix tools/probetest failure

Reviewed-by: Paul B Mahol <onemda at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3a4d8281c64b6cb2a787e6e7142bd51deb356644
---

 libavformat/genh.c |    2 ++
 1 file changed, 2 insertions(+)

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;
 }