avcodec/wavpackenc: Use unsigned for potential 31bit shift

Fixes: CID1465481 Unintentional integer overflow Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit 6f976db251) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 months ago · c630e08d41
parent 846d2f7d71
commit c630e08d41
1 changed files with 2 additions and 2 deletions
--- a/libavcodec/wavpackenc.c
+++ b/libavcodec/wavpackenc.c
@ -1978,7 +1978,7 @@ static void encode_flush(WavPackEncodeContext *s)
                put_bits(pb, 31, 0x7FFFFFFF);
                cbits -= 31;
            } else {
-                put_bits(pb, cbits, (1 << cbits) - 1);
+                put_bits(pb, cbits, (1U << cbits) - 1);
                cbits = 0;
            }
        } while (cbits);
@ -2007,7 +2007,7 @@ static void encode_flush(WavPackEncodeContext *s)
                    put_bits(pb, 31, 0x7FFFFFFF);
                    cbits -= 31;
                } else {
-                    put_bits(pb, cbits, (1 << cbits) - 1);
+                    put_bits(pb, cbits, (1U << cbits) - 1);
                    cbits = 0;
                }
            } while (cbits);