c535b64c8b0ef303c8f33ada62a0014253f326da
[libav.git] / libavutil / intfloat_readwrite.h
1 /*
2 * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #ifndef INTFLOAT_READWRITE_H
22 #define INTFLOAT_READWRITE_H
23
24 #include "common.h"
25
26 /* IEEE 80 bits extended float */
27 typedef struct AVExtFloat {
28 uint8_t exponent[2];
29 uint8_t mantissa[8];
30 } AVExtFloat;
31
32 double av_int2dbl(int64_t v);
33 float av_int2flt(int32_t v);
34 double av_ext2dbl(const AVExtFloat ext);
35 int64_t av_dbl2int(double d);
36 int32_t av_flt2int(float d);
37 AVExtFloat av_dbl2ext(double d);
38
39 #endif /* INTFLOAT_READWRITE_H */