[FFmpeg-cvslog] avcodec/msmpeg4dec: print error in case of invalid vlc in msmpeg4_decode_dc for version <=2

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Dec 15 13:22:03 2013 +0100| [81230e2612a9c88e5b35ed2f67d828450cc50abf] | committer: Michael Niedermayer

avcodec/msmpeg4dec: print error in case of invalid vlc in msmpeg4_decode_dc for version <=2

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=81230e2612a9c88e5b35ed2f67d828450cc50abf
---

 libavcodec/msmpeg4dec.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/msmpeg4dec.c b/libavcodec/msmpeg4dec.c
index 7c260fe..d689b18 100644
--- a/libavcodec/msmpeg4dec.c
+++ b/libavcodec/msmpeg4dec.c
@@ -586,8 +586,10 @@ static int msmpeg4_decode_dc(MpegEncContext * s, int n, int *dir_ptr)
         } else {
             level = get_vlc2(&s->gb, v2_dc_chroma_vlc.table, DC_VLC_BITS, 3);
         }
-        if (level < 0)
+        if (level < 0) {
+            av_log(s->avctx, AV_LOG_ERROR, "illegal dc vlc\n");
             return -1;
+        }
         level-=256;
     }else{  //FIXME optimize use unified tables & index
         if (n < 4) {