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authorMiguel Freitas <miguelfreitas@users.sourceforge.net>2005-10-23 02:11:16 +0000
committerMiguel Freitas <miguelfreitas@users.sourceforge.net>2005-10-23 02:11:16 +0000
commit712a40b59a0f451a558d88db1f9f124463016f97 (patch)
tree82bc80e9b7a5ba09c01acf205c8ac1e20c44914f /src/libffmpeg/libavcodec/rational.c
parent640063a719556f8569fe848528b39660c6fc31a6 (diff)
downloadxine-lib-712a40b59a0f451a558d88db1f9f124463016f97.tar.gz
xine-lib-712a40b59a0f451a558d88db1f9f124463016f97.tar.bz2
big ffmpeg update
it is likely to break, so please keep both pieces CVS patchset: 7767 CVS date: 2005/10/23 02:11:16
Diffstat (limited to 'src/libffmpeg/libavcodec/rational.c')
-rw-r--r--src/libffmpeg/libavcodec/rational.c77
1 files changed, 0 insertions, 77 deletions
diff --git a/src/libffmpeg/libavcodec/rational.c b/src/libffmpeg/libavcodec/rational.c
deleted file mode 100644
index 7ccad9e38..000000000
--- a/src/libffmpeg/libavcodec/rational.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Rational numbers
- * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This library 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 of the License, or (at your option) any later version.
- *
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-/**
- * @file rational.c
- * Rational numbers
- * @author Michael Niedermayer <michaelni@gmx.at>
- */
-
-//#include <math.h>
-#include <limits.h>
-
-#include "common.h"
-#include "avcodec.h"
-#include "rational.h"
-
-/**
- * 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){
- av_reduce(&b.num, &b.den, b.num * (int64_t)c.den, b.den * (int64_t)c.num, INT_MAX);
- return b;
-}
-
-/**
- * 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){
- 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;
-}
-
-/**
- * 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;
- int exponent= FFMAX( (int)(log(ABS(d) + 1e-20)/log(2)), 0);
- int64_t den= 1LL << (61 - exponent);
- av_reduce(&a.num, &a.den, (int64_t)(d * den + 0.5), den, max);
-
- return a;
-}