ffmpeg | branch: master | Luca Barbato <[email protected]> | Thu Sep 10 
14:11:43 2015 +0200| [41ed749fe987e60b0485fa721ad869590651324d] | committer: 
Luca Barbato

ogg: Do not try to use the parser if it is not present

Bug-Id: 886
CC: [email protected]

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=41ed749fe987e60b0485fa721ad869590651324d
---

 libavformat/oggparsevorbis.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/oggparsevorbis.c b/libavformat/oggparsevorbis.c
index aac0f0e..519a0a7 100644
--- a/libavformat/oggparsevorbis.c
+++ b/libavformat/oggparsevorbis.c
@@ -364,6 +364,9 @@ static int vorbis_packet(AVFormatContext *s, int idx)
     struct oggvorbis_private *priv = os->private;
     int duration;
 
+    if (!priv->vp)
+        return AVERROR_INVALIDDATA;
+
     /* first packet handling
      * here we parse the duration of each packet in the first page and compare
      * the total duration to the page granule to find the encoder delay and

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