func NewSignalInfo(rate float64, channels, precision uint, length uint64, mult *float64) *SignalInfo {
var s SignalInfo
s.cSignal = &C.sox_signalinfo_t{}
s.cSignal.rate = C.sox_rate_t(rate)
s.cSignal.channels = C.unsigned(channels)
s.cSignal.precision = C.unsigned(precision)
s.cSignal.length = C.sox_uint64_t(length)
if mult != nil {
var d C.double
d = C.double(*mult)
s.cSignal.mult = &d
}
return &s
}
// Seek sets the location at which next samples will be decoded. Returns true if successful.
func (f *Format) Seek(offset uint64) bool {
return C.sox_seek(f.cFormat, C.sox_uint64_t(offset), C.SOX_SEEK_SET) == C.SOX_SUCCESS
}