/
util.go
59 lines (50 loc) · 1014 Bytes
/
util.go
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package main
import (
"encoding/binary"
"gonum.org/v1/gonum/floats"
"log"
"math"
)
func LoggingSettings(logFile string) {
log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)
}
func float32ToBytes(f float32) []byte {
bits := math.Float32bits(f)
b := make([]byte, 4)
binary.LittleEndian.PutUint32(b, bits)
return b
}
func float32sToBytes(fs []float32) []byte {
bs := make([]byte, len(fs)*4)
b := make([]byte, 4)
for _, f := range fs {
bits := math.Float32bits(f)
binary.LittleEndian.PutUint32(b, bits)
bs = append(bs, b...)
}
return bs
}
func Normalize(fs []float32) []float32 {
fs64 := make([]float64, len(fs))
for i, s := range fs {
fs64[i] = float64(s)
}
m := floats.Max(fs64)
for i, s := range fs64 {
fs[i] = float32(s / m)
}
return fs
}
func Float32sToInt16s(fs []float32) []int16 {
//fs = Normalize(fs)
is := make([]int16, len(fs))
for i, s := range fs {
is[i] = int16(s * math.MaxInt16)
}
return is
}
func check(err error) {
if err != nil {
panic(err)
}
}