[FFmpeg-cvslog] avcodec/scpr: Fix multiple runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Tue May  9 19:45:46 2017 +0200| [f1a4dd5e480932ee580fb686988599d46bb71637] | committer: Michael Niedermayer

avcodec/scpr: Fix multiple runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'

Fixes: 1422/clusterfuzz-testcase-minimized-5030993939398656

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=f1a4dd5e480932ee580fb686988599d46bb71637
---

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

diff --git a/libavcodec/scpr.c b/libavcodec/scpr.c
index 465926af19..ba1f65f2e9 100644
--- a/libavcodec/scpr.c
+++ b/libavcodec/scpr.c
@@ -161,7 +161,7 @@ static int get_freq(RangeCoder *rc, unsigned total_freq, unsigned *freq)
 
 static int decode0(GetByteContext *gb, RangeCoder *rc, unsigned cumFreq, unsigned freq, unsigned total_freq)
 {
-    int t;
+    unsigned t;
 
     if (total_freq == 0)
         return AVERROR_INVALIDDATA;