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FFmpeg/libavutil/intfloat_readwrite.h

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#ifndef INTFLOAT_READWRITE_H
#define 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 /* INTFLOAT_READWRITE_H */