Index: flac/src/libFLAC/include/private/crc.h |
=================================================================== |
--- flac/src/libFLAC/include/private/crc.h (revision 0) |
+++ flac/src/libFLAC/include/private/crc.h (revision 0) |
@@ -0,0 +1,61 @@ |
+/* libFLAC - Free Lossless Audio Codec library |
+ * Copyright (C) 2000,2001,2002,2003,2004,2005,2006,2007 Josh Coalson |
+ * |
+ * Redistribution and use in source and binary forms, with or without |
+ * modification, are permitted provided that the following conditions |
+ * are met: |
+ * |
+ * - Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * |
+ * - Redistributions in binary form must reproduce the above copyright |
+ * notice, this list of conditions and the following disclaimer in the |
+ * documentation and/or other materials provided with the distribution. |
+ * |
+ * - Neither the name of the Xiph.org Foundation nor the names of its |
+ * contributors may be used to endorse or promote products derived from |
+ * this software without specific prior written permission. |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
+ */ |
+ |
+#ifndef FLAC__PRIVATE__CRC_H |
+#define FLAC__PRIVATE__CRC_H |
+ |
+#include "FLAC/ordinals.h" |
+ |
+/* 8 bit CRC generator, MSB shifted first |
+** polynomial = x^8 + x^2 + x^1 + x^0 |
+** init = 0 |
+*/ |
+extern FLAC__byte const FLAC__crc8_table[256]; |
+#define FLAC__CRC8_UPDATE(data, crc) (crc) = FLAC__crc8_table[(crc) ^ (data)]; |
+void FLAC__crc8_update(const FLAC__byte data, FLAC__uint8 *crc); |
+void FLAC__crc8_update_block(const FLAC__byte *data, unsigned len, FLAC__uint8 *crc); |
+FLAC__uint8 FLAC__crc8(const FLAC__byte *data, unsigned len); |
+ |
+/* 16 bit CRC generator, MSB shifted first |
+** polynomial = x^16 + x^15 + x^2 + x^0 |
+** init = 0 |
+*/ |
+extern unsigned FLAC__crc16_table[256]; |
+ |
+#define FLAC__CRC16_UPDATE(data, crc) (((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[((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) |
+#endif |
+ |
+unsigned FLAC__crc16(const FLAC__byte *data, unsigned len); |
+ |
+#endif |
Property changes on: flac/src/libFLAC/include/private/crc.h |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |