[FFmpeg-cvslog] avcodec/sbrdsp_fixed: fix runtime error: left shift of 1 by 31 places cannot be represented in type 'int'

[Michael Niedermayer]

ffmpeg | branch: release/2.8 | Michael Niedermayer <michael at niedermayer.cc> | Sun May 21 01:43:04 2017 +0200| [7d61e21953f97b398964a9a0f2475899ed994ef0] | committer: Michael Niedermayer

avcodec/sbrdsp_fixed: fix runtime error: left shift of 1 by 31 places cannot be represented in type 'int'

Fixes: part of 1709/clusterfuzz-testcase-minimized-4513580554649600

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 384508b2ff69bc3fad1e1c2e7de0dcd0913c6208)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7d61e21953f97b398964a9a0f2475899ed994ef0
---

 libavcodec/sbrdsp_fixed.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/sbrdsp_fixed.c b/libavcodec/sbrdsp_fixed.c
index f4e3de0c71..924da83c85 100644
--- a/libavcodec/sbrdsp_fixed.c
+++ b/libavcodec/sbrdsp_fixed.c
@@ -229,11 +229,11 @@ static void sbr_hf_gen_c(int (*X_high)[2], const int (*X_low)[2],
 static void sbr_hf_g_filt_c(int (*Y)[2], const int (*X_high)[40][2],
                           const SoftFloat *g_filt, int m_max, intptr_t ixh)
 {
-    int m, r;
+    int m;
     int64_t accu;
 
     for (m = 0; m < m_max; m++) {
-        r = 1 << (22-g_filt[m].exp);
+        int64_t r = 1LL << (22-g_filt[m].exp);
         accu = (int64_t)X_high[m][ixh][0] * ((g_filt[m].mant + 0x40)>>7);
         Y[m][0] = (int)((accu + r) >> (23-g_filt[m].exp));