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| author | Robert Kausch <robert.kausch@freac.org> | 2018-04-30 11:54:39 +0200 |
|---|---|---|
| committer | Erik de Castro Lopo <erikd@mega-nerd.com> | 2018-05-21 10:19:03 +1000 |
| commit | 5579f2922f048aa3bd2b206dd64f6ead2846c8ac (patch) | |
| tree | 5b5d8a114a3c8ef610965171b3e2494468a7727c /src/libFLAC/include/private/crc.h | |
| parent | fed5ad42b3445a377fad568f23c1e8f40664cfa3 (diff) | |
| download | flac-5579f2922f048aa3bd2b206dd64f6ead2846c8ac.tar.gz | |
Implement slicing-by-8 CRC16 algorithm.
Diffstat (limited to 'src/libFLAC/include/private/crc.h')
| -rw-r--r-- | src/libFLAC/include/private/crc.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/libFLAC/include/private/crc.h b/src/libFLAC/include/private/crc.h index 81df92a7..8d3d456b 100644 --- a/src/libFLAC/include/private/crc.h +++ b/src/libFLAC/include/private/crc.h @@ -45,14 +45,14 @@ FLAC__uint8 FLAC__crc8(const FLAC__byte *data, uint32_t len); ** polynomial = x^16 + x^15 + x^2 + x^0 ** init = 0 */ -extern uint32_t const FLAC__crc16_table[256]; +extern FLAC__uint16 const FLAC__crc16_table[8][256]; -#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) +#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[0][((crc)>>8) ^ (data)]) /* this alternate may be faster on some systems/compilers */ #if 0 -#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[((crc)>>8) ^ (data)]) & 0xffff) +#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[0][((crc)>>8) ^ (data)]) & 0xffff) #endif -uint32_t FLAC__crc16(const FLAC__byte *data, uint32_t len); +FLAC__uint16 FLAC__crc16(const FLAC__byte *data, uint32_t len); #endif |