This seems not consistent when the frequency is greater than 511
https://github.com/cgzirim/seek-tune/blob/69bd180e991a62a70d95caf868057fbfdb031531/server/shazam/fingerprint.go#L43
```go
package main
import (
"fmt"
)
// Packs anchorFreq (9 bits), targetFreq (9 bits), and deltaMs (14 bits) into a uint32
func createAddress(anchorFreq, targetFreq, deltaMs uint32) uint32 {
return (anchorFreq << 23) | (targetFreq << 14) | deltaMs
}
// Unpacks the 32-bit address back into anchorFreq, targetFreq, and deltaMs
func parseAddress(address uint32) (anchorFreq, targetFreq, deltaMs uint32) {
anchorFreq = (address >> 23) & 0x1FF // 9 bits: bits 23-31
targetFreq = (address >> 14) & 0x1FF // 9 bits: bits 14-22
deltaMs = address & 0x3FFF // 14 bits: bits 0-13
return
}
func main() {
var anchorFreq uint32 = 719 // within 9-bit range
var targetFreq uint32 = 351 // within 9-bit range
var deltaMs uint32 = 34567 // within 14-bit range
address := createAddress(anchorFreq, targetFreq, deltaMs)
fmt.Printf("Packed address: %032b (%d)\n", address, address)
a, t, d := parseAddress(address)
fmt.Printf("Decoded -> anchorFreq: %d, targetFreq: %d, deltaMs: %d\n", a, t, d)
}
// Packed address: 01100111110101111100011100000111 (1742194439)
// Decoded -> anchorFreq: 207, targetFreq: 351, deltaMs: 1799
func main() {
var anchorFreq uint32 = 511 // within 9-bit range
var targetFreq uint32 = 200 // within 9-bit range
var deltaMs uint32 = 12345 // within 14-bit range
address := createAddress(anchorFreq, targetFreq, deltaMs)
fmt.Printf("Packed address: %032b (%d)\n", address, address)
a, t, d := parseAddress(address)
fmt.Printf("Decoded -> anchorFreq: %d, targetFreq: %d, deltaMs: %d\n", a, t, d)
}
// Packed address: 11111111101100100011000000111001 (4289867833)
// Decoded -> anchorFreq: 511, targetFreq: 200, deltaMs: 12345
```
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