[FFmpeg-cvslog] wmaprodec; fix get_bits(0) case.

Michael Niedermayer git at videolan.org
Sat Apr 14 12:43:36 CEST 2012


ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sat Apr 14 12:03:04 2012 +0200| [b28c678ba893876eb7a0c1768dea9dfa0fbeceb3] | committer: Michael Niedermayer

wmaprodec; fix get_bits(0) case.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b28c678ba893876eb7a0c1768dea9dfa0fbeceb3
---

 libavcodec/wmaprodec.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c
index 4195235..aa06826 100644
--- a/libavcodec/wmaprodec.c
+++ b/libavcodec/wmaprodec.c
@@ -1130,7 +1130,7 @@ static int decode_subframe(WMAProDecodeCtx *s)
         int num_fill_bits;
         if (!(num_fill_bits = get_bits(&s->gb, 2))) {
             int len = get_bits(&s->gb, 4);
-            num_fill_bits = get_bits(&s->gb, len) + 1;
+            num_fill_bits = (len ? get_bits(&s->gb, len) : 0) + 1;
         }
 
         if (num_fill_bits >= 0) {



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