Imported Debian version 2.5.0~trusty1.1

[deb_ffmpeg.git] / ffmpeg / libavutil / intfloat_readwrite.c

diff --git a/ffmpeg/libavutil/intfloat_readwrite.c b/ffmpeg/libavutil/intfloat_readwrite.c
deleted file mode 100644 (file)
index af5da62..0000000
--- a/ffmpeg/libavutil/intfloat_readwrite.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * portable IEEE float/double read/write functions
- *
- * Copyright (c) 2005 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
- * portable IEEE float/double read/write functions
- */
-
-#include <stdint.h>
-#include "common.h"
-#include "mathematics.h"
-#include "intfloat_readwrite.h"
-#include "version.h"
-
-#if FF_API_INTFLOAT
-double av_int2dbl(int64_t v){
-    if((uint64_t)v+v > 0xFFEULL<<52)
-        return NAN;
-    return ldexp(((v&((1LL<<52)-1)) + (1LL<<52)) * (v>>63|1), (v>>52&0x7FF)-1075);
-}
-
-float av_int2flt(int32_t v){
-    if((uint32_t)v+v > 0xFF000000U)
-        return NAN;
-    return ldexp(((v&0x7FFFFF) + (1<<23)) * (v>>31|1), (v>>23&0xFF)-150);
-}
-
-double av_ext2dbl(const AVExtFloat ext){
-    uint64_t m = 0;
-    int e, i;
-
-    for (i = 0; i < 8; i++)
-        m = (m<<8) + ext.mantissa[i];
-    e = (((int)ext.exponent[0]&0x7f)<<8) | ext.exponent[1];
-    if (e == 0x7fff && m)
-        return NAN;
-    e -= 16383 + 63;        /* In IEEE 80 bits, the whole (i.e. 1.xxxx)
-                             * mantissa bit is written as opposed to the
-                             * single and double precision formats. */
-    if (ext.exponent[0]&0x80)
-        m= -m;
-    return ldexp(m, e);
-}
-
-int64_t av_dbl2int(double d){
-    int e;
-    if     ( !d) return 0;
-    else if(d-d) return 0x7FF0000000000000LL + ((int64_t)(d<0)<<63) + (d!=d);
-    d= frexp(d, &e);
-    return (int64_t)(d<0)<<63 | (e+1022LL)<<52 | (int64_t)((fabs(d)-0.5)*(1LL<<53));
-}
-
-int32_t av_flt2int(float d){
-    int e;
-    if     ( !d) return 0;
-    else if(d-d) return 0x7F800000 + ((d<0)<<31) + (d!=d);
-    d= frexp(d, &e);
-    return (d<0)<<31 | (e+126)<<23 | (int64_t)((fabs(d)-0.5)*(1<<24));
-}
-
-AVExtFloat av_dbl2ext(double d){
-    struct AVExtFloat ext= {{0}};
-    int e, i; double f; uint64_t m;
-
-    f = fabs(frexp(d, &e));
-    if (f >= 0.5 && f < 1) {
-        e += 16382;
-        ext.exponent[0] = e>>8;
-        ext.exponent[1] = e;
-        m = (uint64_t)ldexp(f, 64);
-        for (i=0; i < 8; i++)
-            ext.mantissa[i] = m>>(56-(i<<3));
-    } else if (f != 0.0) {
-        ext.exponent[0] = 0x7f; ext.exponent[1] = 0xff;
-        if (!isinf(f))
-            ext.mantissa[0] = ~0;
-    }
-    if (d < 0)
-        ext.exponent[0] |= 0x80;
-    return ext;
-}
-#endif /* FF_API_INTFLOAT */