00001 /* 00002 * copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #ifndef FFMPEG_INTFLOAT_READWRITE_H 00022 #define FFMPEG_INTFLOAT_READWRITE_H 00023 00024 #include "common.h" 00025 00026 /* IEEE 80 bits extended float */ 00027 typedef struct AVExtFloat { 00028 uint8_t exponent[2]; 00029 uint8_t mantissa[8]; 00030 } AVExtFloat; 00031 00032 double av_int2dbl(int64_t v); 00033 float av_int2flt(int32_t v); 00034 double av_ext2dbl(const AVExtFloat ext); 00035 int64_t av_dbl2int(double d); 00036 int32_t av_flt2int(float d); 00037 AVExtFloat av_dbl2ext(double d); 00038 00039 #endif /* FFMPEG_INTFLOAT_READWRITE_H */