我有一个播放流音频的应用程序.如何使用AVAudioRecorder(或其他东西？)从AVPlayer录制流式音频.谢谢.
解决方法
斯威夫特3
这是一个简单的VC,它将音频会话保存到文件dir(audio.aac)
这是一个简单的VC,它将音频会话保存到文件dir(audio.aac)
import UIKit
import AVFoundation
class ViewController: UIViewController {
var audioRecorder: AVAudioRecorder?
override func viewDidLoad() {
super.viewDidLoad()
verifyRecordPermission()
}
@IBAction func recordButonAction(_ sender: UIButton) {
if audioRecorder?.isRecording == true {
audioRecorder?.stop()
sender.setTitle("Record",for: .normal)
}
else {
startRecording()
sender.setTitle("Stop",for: .normal)
}
}
func verifyRecordPermission() {
let permission = AVAudioSession.sharedInstance().recordPermission()
switch permission {
case .denied:
print("recording not allowed")
case .granted:
print("recording allowed")
default:
AVAudioSession.sharedInstance().requestRecordPermission() { (granted) -> Void in
print("recording granted:\(granted)")
}
}
}
func startRecording() {
guard AVAudioSession.sharedInstance().recordPermission() == .granted else {
return
}
let documentsPath = NSSearchPathForDirectoriesInDomains(.documentDirectory,.userDomainMask,true)[0]
let audioUrl = URL(fileURLWithPath: "\(documentsPath)/audio.aac")
let session = AVAudioSession.sharedInstance()
do {
try session.setCategory(AVAudioSessionCategoryRecord)
try session.setActive(true)
try audioRecorder = AVAudioRecorder(url: audioUrl,settings: [AVFormatIDKey: Int(kAudioFormatMPEG4AAC),AVSampleRateKey: 24000.0,AVNumberOfChannelsKey: 1 as NSNumber,AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue])
} catch {
// handle error...
return
}
guard let audioRecorder = audioRecorder else {
return
}
audioRecorder.preparetoRecord()
audioRecorder.record()
}
func stop(session: AVAudioSession = AVAudioSession.sharedInstance()) {
audioRecorder?.stop()
audioRecorder = nil
do {
try session.setActive(false)
} catch {
// handle session errors
}
}
}