diff -r c4fd2813b127 -r d92eeb468dad misc/winutils/include/libavutil/mathematics.h
--- a/misc/winutils/include/libavutil/mathematics.h	Wed Jul 31 23:14:27 2019 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,111 +0,0 @@
-/*
- * copyright (c) 2005 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_MATHEMATICS_H
-#define AVUTIL_MATHEMATICS_H
-
-#include <stdint.h>
-#include <math.h>
-#include "attributes.h"
-#include "rational.h"
-#include "intfloat.h"
-
-#ifndef M_LOG2_10
-#define M_LOG2_10      3.32192809488736234787  /* log_2 10 */
-#endif
-#ifndef M_PHI
-#define M_PHI          1.61803398874989484820   /* phi / golden ratio */
-#endif
-#ifndef NAN
-#define NAN            av_int2float(0x7fc00000)
-#endif
-#ifndef INFINITY
-#define INFINITY       av_int2float(0x7f800000)
-#endif
-
-/**
- * @addtogroup lavu_math
- * @{
- */
-
-
-enum AVRounding {
-    AV_ROUND_ZERO     = 0, ///< Round toward zero.
-    AV_ROUND_INF      = 1, ///< Round away from zero.
-    AV_ROUND_DOWN     = 2, ///< Round toward -infinity.
-    AV_ROUND_UP       = 3, ///< Round toward +infinity.
-    AV_ROUND_NEAR_INF = 5, ///< Round to nearest and halfway cases away from zero.
-};
-
-/**
- * Return the greatest common divisor of a and b.
- * If both a and b are 0 or either or both are <0 then behavior is
- * undefined.
- */
-int64_t av_const av_gcd(int64_t a, int64_t b);
-
-/**
- * Rescale a 64-bit integer with rounding to nearest.
- * A simple a*b/c isn't possible as it can overflow.
- */
-int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
-
-/**
- * Rescale a 64-bit integer with specified rounding.
- * A simple a*b/c isn't possible as it can overflow.
- */
-int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const;
-
-/**
- * Rescale a 64-bit integer by 2 rational numbers.
- */
-int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
-
-/**
- * Rescale a 64-bit integer by 2 rational numbers with specified rounding.
- */
-int64_t av_rescale_q_rnd(int64_t a, AVRational bq, AVRational cq,
-                         enum AVRounding) av_const;
-
-/**
- * Compare 2 timestamps each in its own timebases.
- * The result of the function is undefined if one of the timestamps
- * is outside the int64_t range when represented in the others timebase.
- * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position
- */
-int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
-
-/**
- * Compare 2 integers modulo mod.
- * That is we compare integers a and b for which only the least
- * significant log2(mod) bits are known.
- *
- * @param mod must be a power of 2
- * @return a negative value if a is smaller than b
- *         a positive value if a is greater than b
- *         0                if a equals          b
- */
-int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod);
-
-/**
- * @}
- */
-
-#endif /* AVUTIL_MATHEMATICS_H */