How to stream audio from URL without downloading mp3 file on device - ios

Question

How would I stream audio from a URL in Swift without downloading the mp3 file on the device? What do I need to import? Do I need certain libraries? Add anything to the info.plist? Please comment your code.

Answer 1

You can use iOS AVPLayer for Streaming audio from url.
var player: AVPlayer!
let url = URL.init(string: "https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3")
let playerItem: AVPlayerItem = AVPlayerItem(url: url!)
player = AVPlayer(playerItem: playerItem)
let playerLayer = AVPlayerLayer(player: player!)
playerLayer?.frame = CGRect(x: 0, y: 0, width: 10, height: 50)
self.view.layer.addSublayer(playerLayer!)
player.play()

Answer 2

class MusicPlayer {
public static var instance = MusicPlayer()
var player = AVPlayer()
func initPlayer(url: String) {
guard let url = URL(string: url) else { return }
let playerItem = AVPlayerItem(url: url)
player = AVPlayer(playerItem: playerItem)
playAudioBackground()
}
func playAudioBackground() {
do {
try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback, mode: AVAudioSession.Mode.default, options: [.mixWithOthers, .allowAirPlay])
print("Playback OK")
try AVAudioSession.sharedInstance().setActive(true)
print("Session is Active")
} catch {
print(error)
}
}
func pause(){
player.pause()
}
func play() {
player.play()
}
}
This class will play music in the background and play any audio/video URL.

Answer 3

For online streaming you have to use AVFoundation framework.
var player: AVPlayer!
let url = URL.init(string: "https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3")
player = AVPlayer.init(url: url!)
To play:
player.play()
To pause:
player.pause()

Answer 4

I test it with your url and it work
var player: AVPlayer?
let url = "https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3"
let playerItem = AVPlayerItem( url:NSURL( string:url )! as URL )
player = AVPlayer(playerItem:playerItem)
player!.rate = 1.0;
player!.play()

Answer 5

here you can go
import AVFoundation
var progressTimer:Timer?
{
willSet {
progressTimer?.invalidate()
}
}
var playerStream: AVPlayer?
var playerItem: AVPlayerItem?
func playerStream(urlStream : String) {
if let playerStream = playerStream {
if playerStream.isPlaying {
stopProgressTimer()
playerStream.pause()
} else {
startProgressTimer()
playerStream.play()
}
} else {
if let urlStr = urlStream.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) {
if let TempURL = URL.init(string: urlStr) {
playerItem = AVPlayerItem(url: TempURL)
playerStream = AVPlayer(playerItem: playerItem)
NotificationCenter.default.addObserver(self, selector: #selector(playerItemDidPlayToEndTime), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: playerItem)
}
}
}
}
func playerItemDidPlayToEndTime() {
stopProgressTimer()
self.playProgressView.progress = 0.0
if let playerStream = self.playerStream {
playerStream.replaceCurrentItem(with: playerItem)
playerStream.seek(to: kCMTimeZero)
// playerStream.seek(to: .zero) swift 4.0
}
}
func stopProgressTimer() {
progressTimer?.invalidate()
progressTimer = nil
}
func startProgressTimer() {
if #available(iOS 10.0, *) {
progressTimer = Timer.scheduledTimer(withTimeInterval: 0.1, repeats: true){ [weak self] in
self?.updateProgressTimer()
}
} else {
progressTimer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(self.updateProgressTimer), userInfo: nil, repeats: true)
}
}
#objc func updateProgressTimer() {
if let playerItem = playerItem {
if let pa = playerStream {
let floatTime = Float(CMTimeGetSeconds(pa.currentTime()))
let floatTimeDu = Float(CMTimeGetSeconds(playerItem.duration))
playProgressView.progress = Double(floatTime / floatTimeDu)
}
}
}

Answer 6

func playAudioBackground() {
do {
try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback, mode: AVAudioSession.Mode.default, options: [.mixWithOthers, .allowAirPlay])
print("Playback OK")
try AVAudioSession.sharedInstance().setActive(true)
print("Session is Active")
} catch {
print(error)
}
}
should be
func playAudioBackground() {
do {
try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback, mode: AVAudioSession.Mode.default, options: [.mixWithOthers])
print("Playback OK")
try AVAudioSession.sharedInstance().setActive(true)
print("Session is Active")
} catch {
print(error)
}
}
because .allowAirPlay is not allowed with AVAudioSession.Category.playback and will cause a real device to throw an exception. It works fine on a simulator but not device and as a result your audio session will not be configured properly.
I would have replied to it, but my reputation wasn't high enough to allow me to...