[FFmpeg-cvslog] avformat/vqf: check a few more bits in probe

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Nov 12 22:26:34 2013 +0100| [e3fc4481b6dd60acdb9f3e370ee9a1d1bd4ddd73] | committer: Michael Niedermayer

avformat/vqf: check a few more bits in probe

Fixes probetest failure
The threshold is choosen so that a all printale ascii string will never be
detected as vqf

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e3fc4481b6dd60acdb9f3e370ee9a1d1bd4ddd73
---

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

diff --git a/libavformat/vqf.c b/libavformat/vqf.c
index 4cd0a6d..526b596 100644
--- a/libavformat/vqf.c
+++ b/libavformat/vqf.c
@@ -43,6 +43,9 @@ static int vqf_probe(AVProbeData *probe_packet)
     if (!memcmp(probe_packet->buf + 4, "00052200", 8))
         return AVPROBE_SCORE_MAX;
 
+    if (AV_RL32(probe_packet->buf + 12) > (1<<27))
+        return AVPROBE_SCORE_EXTENSION/2;
+
     return AVPROBE_SCORE_EXTENSION;
 }