ffmpeg | branch: master | Claudio Freire <klaussfre...@gmail.com> | Wed Dec  9 
17:36:32 2015 -0300| [124c3759386a98e9f47b3305cb18cee5e1707d73] | committer: 
Andreas Cadhalpun

AAC encoder: fix OOB access in search_for_pns

Fix OOB access in search_for_pns which was using
w2 outside the window group loop, and fix a typo
in which it was checking sf_idx instead of band_type

Reviewed-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>
Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=124c3759386a98e9f47b3305cb18cee5e1707d73
---

 libavcodec/aaccoder.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/aaccoder.c b/libavcodec/aaccoder.c
index 14862ec..7e55494 100644
--- a/libavcodec/aaccoder.c
+++ b/libavcodec/aaccoder.c
@@ -711,7 +711,7 @@ static void search_for_pns(AACEncContext *s, AVCodecContext 
*avctx, SingleChanne
                 /* Estimate rd on average as 5 bits for SF, 4 for the CB, plus 
spread energy * lambda/thr */
                 dist2 += 
band->energy/(band->spread*band->spread)*lambda*dist_thresh/band->threshold;
             }
-            if (g && sce->sf_idx[(w+w2)*16+g-1] == NOISE_BT) {
+            if (g && sce->band_type[w*16+g-1] == NOISE_BT) {
                 dist2 += 5;
             } else {
                 dist2 += 9;

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