40 lines
1.0 KiB
Diff
40 lines
1.0 KiB
Diff
--- libogg-1.1/src/bitwise.c.orig 2003-12-07 01:48:17.000000000 +0100
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+++ libogg-1.1/src/bitwise.c 2003-12-07 01:52:58.000000000 +0100
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@@ -251,7 +251,8 @@ long oggpack_look(oggpack_buffer *b,int
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/* Read in bits without advancing the bitptr; bits <= 32 */
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long oggpackB_look(oggpack_buffer *b,int bits){
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unsigned long ret;
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- int m=32-bits;
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+ unsigned long m=mask[bits];
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+ int s=32-bits;
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bits+=b->endbit;
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@@ -272,7 +273,7 @@ long oggpackB_look(oggpack_buffer *b,int
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}
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}
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}
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- return (ret>>(m>>1))>>((m+1)>>1);
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+ return ((ret>>(s>>1))>>((s+1)>>1)&m);
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}
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long oggpack_look1(oggpack_buffer *b){
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@@ -347,7 +348,8 @@ long oggpack_read(oggpack_buffer *b,int
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/* bits <= 32 */
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long oggpackB_read(oggpack_buffer *b,int bits){
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unsigned long ret;
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- long m=32-bits;
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+ unsigned long m=mask[bits];
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+ long s=32-bits;
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bits+=b->endbit;
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@@ -369,7 +371,7 @@ long oggpackB_read(oggpack_buffer *b,int
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}
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}
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}
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- ret=(ret>>(m>>1))>>((m+1)>>1);
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+ ret=((ret>>(s>>1))>>((s+1)>>1)&m);
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overflow:
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