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avcodec/wavpackenc: Use unsigned for potential 31bit shift

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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>
release/6.1
Michael Niedermayer 9 months ago
parent 846d2f7d71
commit c630e08d41
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GPG Key ID: B18E8928B3948D64
1 changed files with 2 additions and 2 deletions
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  1. 4
      libavcodec/wavpackenc.c

4
libavcodec/wavpackenc.c
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@ -1978,7 +1978,7 @@ static void encode_flush(WavPackEncodeContext *s)
put_bits(pb, 31, 0x7FFFFFFF); put_bits(pb, 31, 0x7FFFFFFF);
cbits -= 31; cbits -= 31;
} else { } else {
put_bits(pb, cbits, (1 << cbits) - 1); put_bits(pb, cbits, (1U << cbits) - 1);
cbits = 0; cbits = 0;
} }
} while (cbits); } while (cbits);
@ -2007,7 +2007,7 @@ static void encode_flush(WavPackEncodeContext *s)
put_bits(pb, 31, 0x7FFFFFFF); put_bits(pb, 31, 0x7FFFFFFF);
cbits -= 31; cbits -= 31;
} else { } else {
put_bits(pb, cbits, (1 << cbits) - 1); put_bits(pb, cbits, (1U << cbits) - 1);
cbits = 0; cbits = 0;
} }
} while (cbits); } while (cbits);

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