www.pudn.com > ffmpeg-Sdk.rar > intfloat_readwrite.h

/* 
 * copyright (c) 2005 Michael Niedermayer  
 * 
 * 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 
 */ 
 
#ifndef FFMPEG_INTFLOAT_READWRITE_H 
#define FFMPEG_INTFLOAT_READWRITE_H 
 
#include "common.h" 
 
/* IEEE 80 bits extended float */ 
typedef struct AVExtFloat  { 
    uint8_t exponent[2]; 
    uint8_t mantissa[8]; 
} AVExtFloat; 
 
double av_int2dbl(int64_t v); 
float av_int2flt(int32_t v); 
double av_ext2dbl(const AVExtFloat ext); 
int64_t av_dbl2int(double d); 
int32_t av_flt2int(float d); 
AVExtFloat av_dbl2ext(double d); 
 
#endif /* FFMPEG_INTFLOAT_READWRITE_H */