[FFmpeg-cvslog] avcodec/ra144: Fix runtime error: left shift of negative value -798

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun May  7 14:16:33 2017 +0200| [78bf446852a7e5e8aa52c7ca9889632e167b665f] | committer: Michael Niedermayer

avcodec/ra144: Fix runtime error: left shift of negative value -798

Fixes: 1388/clusterfuzz-testcase-minimized-6680800936329216

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=78bf446852a7e5e8aa52c7ca9889632e167b665f
---

 libavcodec/ra144.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/ra144.c b/libavcodec/ra144.c
index ceec32d79d..690f7ff3d6 100644
--- a/libavcodec/ra144.c
+++ b/libavcodec/ra144.c
@@ -1598,7 +1598,7 @@ void ff_eval_coefs(int *coefs, const int *refl)
     int i, j;
 
     for (i=0; i < LPC_ORDER; i++) {
-        b1[i] = refl[i] << 4;
+        b1[i] = refl[i] * 16;
 
         for (j=0; j < i; j++)
             b1[j] = ((refl[i] * b2[i-j-1]) >> 12) + b2[j];