[FFmpeg-cvslog] avcodec/imc: dont read bits beyond the end

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Dec 17 04:51:06 2014 +0100| [3ba105029279bf43e6338849f360f1ce9a2973a0] | committer: Michael Niedermayer

avcodec/imc: dont read bits beyond the end

Fixes use of uninitialized memory

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3ba105029279bf43e6338849f360f1ce9a2973a0
---

 libavcodec/imc.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/libavcodec/imc.c b/libavcodec/imc.c
index b367ccb..a3254f1 100644
--- a/libavcodec/imc.c
+++ b/libavcodec/imc.c
@@ -808,9 +808,8 @@ static void imc_get_coeffs(AVCodecContext *avctx,
                         av_log(avctx, AV_LOG_WARNING,
                             "Potential problem on band %i, coefficient %i"
                             ": cw_len=%i\n", i, j, cw_len);
-                    }
-
-                    cw = get_bits(&q->gb, cw_len);
+                    } else
+                        cw = get_bits(&q->gb, cw_len);
                 }
 
                 chctx->codewords[j] = cw;