avformat/oggparseogm: Fix undefined shift in ogm_packet()
authorMichael Niedermayer <michael@niedermayer.cc>
Thu, 8 Mar 2018 22:14:04 +0000 (23:14 +0100)
committerMichael Niedermayer <michael@niedermayer.cc>
Sat, 10 Mar 2018 01:44:45 +0000 (02:44 +0100)
Fixes: shift exponent 48 is too large for 32-bit type 'int'
Fixes: Chromium bug 786793
Reported-by: Matt Wolenetz <wolenetz@google.com>
Reviewed-by: Matt Wolenetz <wolenetz@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavformat/oggparseogm.c

index ca6b626..4b4edf2 100644 (file)
@@ -180,7 +180,7 @@ ogm_packet(AVFormatContext *s, int idx)
     os->psize -= lb + 1;
 
     while (lb--)
-        os->pduration += p[lb+1] << (lb*8);
+        os->pduration += (uint64_t)p[lb+1] << (lb*8);
 
     return 0;
 }