Module: libav
Branch: master
Commit: 12cbbbb4abda2de0ea123282ccf7ebee61517f7d

Author:    Franz Brauße <[email protected]>
Committer: Justin Ruggles <[email protected]>
Date:      Fri Mar 30 14:40:14 2012 -0400

smacker audio: sign-extend the initial 16-bit predicted value

Fixes Bug #265

Signed-off-by: Justin Ruggles <[email protected]>

---

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

diff --git a/libavcodec/smacker.c b/libavcodec/smacker.c
index d425387..4602730 100644
--- a/libavcodec/smacker.c
+++ b/libavcodec/smacker.c
@@ -655,7 +655,7 @@ static int smka_decode_frame(AVCodecContext *avctx, void 
*data,
     }
     if(bits) { //decode 16-bit data
         for(i = stereo; i >= 0; i--)
-            pred[i] = av_bswap16(get_bits(&gb, 16));
+            pred[i] = sign_extend(av_bswap16(get_bits(&gb, 16)), 16);
         for(i = 0; i <= stereo; i++)
             *samples++ = pred[i];
         for(; i < unp_size / 2; i++) {

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