[FFmpeg-cvslog] avformat/swfdec: check version and size during probing

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Nov  6 12:44:02 2013 +0100| [ff1d81b08c06da62bc567ce7aadbcbf3d652b740] | committer: Michael Niedermayer

avformat/swfdec: check version and size during probing

Fixes probetest failure

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ff1d81b08c06da62bc567ce7aadbcbf3d652b740
---

 libavformat/swfdec.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavformat/swfdec.c b/libavformat/swfdec.c
index 54e0f6d..aa6ce84 100644
--- a/libavformat/swfdec.c
+++ b/libavformat/swfdec.c
@@ -55,9 +55,12 @@ static int get_swf_tag(AVIOContext *pb, int *len_ptr)
 
 static int swf_probe(AVProbeData *p)
 {
+    if(p->buf_size < 15)
+        return 0;
+
     /* check file header */
     if ((p->buf[0] == 'F' || p->buf[0] == 'C') && p->buf[1] == 'W' &&
-        p->buf[2] == 'S')
+        p->buf[2] == 'S' && p->buf[3] < 20)
         return AVPROBE_SCORE_MAX;
     else
         return 0;