Analyser BPM in Swift for your music/sounds/records, whatever.. Powered with Superpowered
- BMPAnalyzer.swift
- Superpower directory
- Add AudioToolbox.framework
- CoreMedia.framework
- AVFoundation
- libSuperpoweredAudioIOS.a (From repo: /src/Superpowered, you added it to project in the previous step
public func getBpmFrom(_ url: URL, completion: (String?) -> ()) -> String
Example:
guard let filePath = Bundle.main.path(forResource: "TestMusic", ofType: "m4a"),
let url = URL(string: filePath) else {return "error occured, check fileURL"}
BPMAnalyzer.core.getBpmFrom(url, completion: nil)
You can stuck it with MPMediaPicker in delegate like this:
import UIKit
import MediaPlayer
class YourClassViewController: UIViewController {
let mediaPicker: MPMediaPickerController = MPMediaPickerController(mediaTypes: .music)
lazy var bpmLabel: UILabel = {
let label = UILabel()
label.frame.size.height = 300
label.frame.size.width = UIScreen.main.bounds.width - 32
label.numberOfLines = 2
return label
}()
override func viewDidLoad() {
super.viewDidLoad()
mediaPicker.allowsPickingMultipleItems = false
mediaPicker.delegate = self
present(mediaPicker, animated: true, completion: nil)
// Do any additional setup after loading the view, typically from a nib.
}
}
extension YourClassViewController: MPMediaPickerControllerDelegate {
func mediaPicker(_ mediaPicker: MPMediaPickerController, didPickMediaItems
mediaItemCollection: MPMediaItemCollection) {
guard let asset = mediaItemCollection.items.first,
let url = asset.assetURL else {return}
_ = BPMAnalyzer.core.getBpmFrom(url, completion: {[weak self] (bpm) in
self?.addLabelWith(bpm)
self?.mediaPicker.dismiss(animated: true, completion: nil)
})
}
func addLabelWith(_ bpm: String) {
bpmLabel.text = String(describing:bpm)
view.addSubview(bpmLabel)
bpmLabel.center = view.center
view.layoutIfNeeded()
}
}
Cause I can :D But in fact, I did't find any libs/frameworks to get BPM from media files...
Cause it is the fastest lib I have found