1 files changed, 0 insertions, 120 deletions
diff --git a/src/libffmpeg/libavutil/rational.c b/src/libffmpeg/libavutil/rational.c
deleted file mode 100644
index 0480aa882..000000000
--- a/src/libffmpeg/libavutil/rational.c
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Rational numbers
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- */
-
-/**
- * @file rational.c
- * Rational numbers
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-//#include <math.h>
-#include <limits.h>
-
-#include "common.h"
-#include "mathematics.h"
-#include "rational.h"
-
-int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max){
-    AVRational a0={0,1}, a1={1,0};
-    int sign= (nom<0) ^ (den<0);
-    int64_t gcd= ff_gcd(FFABS(nom), FFABS(den));
-
-    if(gcd){
-        nom = FFABS(nom)/gcd;
-        den = FFABS(den)/gcd;
-    }
-    if(nom<=max && den<=max){
-        a1= (AVRational){nom, den};
-        den=0;
-    }
-
-    while(den){
-        uint64_t x      = nom / den;
-        int64_t next_den= nom - den*x;
-        int64_t a2n= x*a1.num + a0.num;
-        int64_t a2d= x*a1.den + a0.den;
-
-        if(a2n > max || a2d > max){
-            if(a1.num) x= (max - a0.num) / a1.num;
-            if(a1.den) x= FFMIN(x, (max - a0.den) / a1.den);
-
-            if (den*(2*x*a1.den + a0.den) > nom*a1.den)
-                a1 = (AVRational){x*a1.num + a0.num, x*a1.den + a0.den};
-            break;
-        }
-
-        a0= a1;
-        a1= (AVRational){a2n, a2d};
-        nom= den;
-        den= next_den;
-    }
-    assert(ff_gcd(a1.num, a1.den) <= 1U);
-
-    *dst_nom = sign ? -a1.num : a1.num;
-    *dst_den = a1.den;
-
-    return den==0;
-}
-
-/**
- * returns b*c.
- */
-AVRational av_mul_q(AVRational b, AVRational c){
-    av_reduce(&b.num, &b.den, b.num * (int64_t)c.num, b.den * (int64_t)c.den, INT_MAX);
-    return b;
-}
-
-/**
- * returns b/c.
- */
-AVRational av_div_q(AVRational b, AVRational c){
-    return av_mul_q(b, (AVRational){c.den, c.num});
-}
-
-/**
- * returns b+c.
- */
-AVRational av_add_q(AVRational b, AVRational c){
-    av_reduce(&b.num, &b.den, b.num * (int64_t)c.den + c.num * (int64_t)b.den, b.den * (int64_t)c.den, INT_MAX);
-    return b;
-}
-
-/**
- * returns b-c.
- */
-AVRational av_sub_q(AVRational b, AVRational c){
-    return av_add_q(b, (AVRational){-c.num, c.den});
-}
-
-/**
- * Converts a double precission floating point number to a AVRational.
- * @param max the maximum allowed numerator and denominator
- */
-AVRational av_d2q(double d, int max){
-    AVRational a;
-#define LOG2  0.69314718055994530941723212145817656807550013436025
-    int exponent= FFMAX( (int)(log(fabs(d) + 1e-20)/LOG2), 0);
-    int64_t den= 1LL << (61 - exponent);
-    av_reduce(&a.num, &a.den, (int64_t)(d * den + 0.5), den, max);
-
-    return a;
-}