--- a/misc/winutils/include/libavutil/crc.h	Sat Aug 31 22:30:29 2019 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,43 +0,0 @@
-/*
- * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef AVUTIL_CRC_H
-#define AVUTIL_CRC_H
-
-#include <stdint.h>
-#include <stddef.h>
-#include "attributes.h"
-
-typedef uint32_t AVCRC;
-
-typedef enum {
-    AV_CRC_8_ATM,
-    AV_CRC_16_ANSI,
-    AV_CRC_16_CCITT,
-    AV_CRC_32_IEEE,
-    AV_CRC_32_IEEE_LE,  /*< reversed bitorder version of AV_CRC_32_IEEE */
-    AV_CRC_MAX,         /*< Not part of public API! Do not use outside libavutil. */
-}AVCRCId;
-
-int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
-const AVCRC *av_crc_get_table(AVCRCId crc_id);
-uint32_t av_crc(const AVCRC *ctx, uint32_t start_crc, const uint8_t *buffer, size_t length) av_pure;
-
-#endif /* AVUTIL_CRC_H */