从M3U8流视频获取Swift ios 8中的定时元数据

概述我试图在 swift中复制这个 https://jmacmullin.wordpress.com/2010/11/03/adding-meta-data-to-video-in-ios/. 这是杰克的代码在行动中的视频…… Objective C Timed Metadat in HLS stream 这是类似的东西的附加链接…… http://cloudfields.net/blog/metad 我试图在 swift中复制这个 https://jmacmullin.wordpress.com/2010/11/03/adding-meta-data-to-video-in-ios/.

这是杰克的代码在行动中的视频……

Objective C Timed Metadat in HLS stream

这是类似的东西的附加链接……

http://cloudfields.net/blog/metadata-audiostream-mpmovieplayercontroller/

当我的视频正在播放定时元数据时,应该更新按钮以在单击时重定向到webvIEw中的特定youtube网址.我的视频大约15分钟,有6个定时元数据网址.

我无法在Swift中找到任何关于如何实现此目的的代码或文档.我已经设法将Jake的Objective C代码转换为他的Notification调用.

// Register for Meta-data notificationsNSNotificationCenter *center = [NSNotificationCenter defaultCenter]; [center addobserver:self       selector:@selector(MetadataUpdate:)           @R_419_6889@:MPMovIEPlayerTimedMetadataUpdatednotification         object:nil];

到Swift Code

NSNotificationCenter.defaultCenter().addobserver(            self,selector: "MetadataUpdated",@R_419_6889@: MPMovIEPlayerTimedMetadataUpdatednotification,object: nil)

杰克的功能

Actor *actor = [[Actor alloc] init]; if ([player timedMetadata]!=nil && [[player timedMetadata] count] > 0) {for (MPTimedMetadata *Metadata in [player timedMetadata]) {if ([[Metadata.allMetadata valueForKey:@"key"] isEqualToString:@"TPE1"]) {        [actor set@R_419_6889@:[Metadata.allMetadata objectForKey:@"value"]];    }    if ([[Metadata.allMetadata valueForKey:@"key"] isEqualToString:@"WXXX"]) {        NSURL *url = [NSURL URLWithString:[Metadata.allMetadata objectForKey:@"value"]];        [actor setProfileURL:url];    }  }}// display some UI element for the user to interact with

到斯威夫特

func MetadataUpdated (notification: NSNotification!) {    if movIEPlayer?.timedMetadata != nil && movIEPlayer?.timedMetadata.count > 0 {        for MPTimedMetadata in [movIEPlayer?.timedMetadata] {            if MPTimedMetadata?.description  == ("TPE1") {                let @R_419_6889@ = ("value")            }            if MPTimedMetadata?.description  == ("WXXX") {                var url = NSURL.observeValueForKeyPath("value")            }        } }println("Things are kind of working")}}

对于我的生活,虽然我无法弄清楚如何将元数据转换为任何可 *** 作的代码.我真的需要创建一个重定向到元数据中携带的URL的按钮,但不能将其转换为String.任何帮助是极大的赞赏.这是我到目前为止所拥有的.

import UIKitimport MediaPlayerclass VIEwController: UIVIEwController {var movIEPlayer: MPMovIEPlayerController?var youtube = ""overrIDe func vIEwDIDLoad() {    super.vIEwDIDLoad()    // Do any additional setup after loading the vIEw,typically from a nib.    let url = NSURL(string: "http://path/to/vIDeo.m3u8")    movIEPlayer = MPMovIEPlayerController(contentURL: url)    if let player = movIEPlayer {        player.vIEw.frame = CGRect(x: 0,y: 0,wIDth: self.vIEw.frame.size.wIDth,height: self.vIEw.frame.size.height)        player.vIEw.sizetoFit()        player.scalingMode = MPMovIEScalingMode.None        player.movIESourceType = MPMovIESourceType.Streaming        //player.repeatMode = MPMovIERepeatMode.One        player.play()        self.vIEw.addSubvIEw(player.vIEw)        NSNotificationCenter.defaultCenter().addobserver(            self,selector: "MetadataUpdated:",object: nil)    }}overrIDe func dIDReceiveMemoryWarning() {    super.dIDReceiveMemoryWarning()    // dispose of any resources that can be recreated.}func MetadataUpdated (notification: NSNotification!) {    if movIEPlayer?.timedMetadata != nil && movIEPlayer?.timedMetadata.count > 0 {        for MPTimedMetadata in [movIEPlayer?.timedMetadata] {            if MPTimedMetadata?.description  == ("TPE1") {                let @R_419_6889@ = ("value")            }            if MPTimedMetadata?.description  == ("WXXX") {                var url = NSURL.observeValueForKeyPath("value")            }        }}println("Things are kind of working")}}

所以我得到了这个工作,但最终沟渠MPMovIEController选择AVPlayer.这是我的代码,以及帮助我​​实现其功能的另一篇帖子的链接.

Timed Metadata with AVPlayer

import UIKitimport MediaPlayerimport AVFoundationvar youtubeRequest: NSURLRequest! = nilvar player : AVPlayer? = nilvar url:Nsstring!class VIEwController: UIVIEwController {var movIEPlayer: MPMovIEPlayerController?var movIEItem: AVPlayerItem!var Player: AVPlayer!var playerLayer : AVPlayerLayer? = nilvar asset : AVAsset? = nilvar playerItem: AVPlayerItem!var youtubeRequest: NSURLRequest! = nil@IBOutlet var playbuttonOutlet: UIbarbuttonItem!@IBAction func playbuttonAction(sender: AnyObject) {player?.play()    playbuttonOutlet.enabled = false}@IBOutlet var vIDeoVIEw: UIVIEw!@IBAction func loadURL(sender: AnyObject) {player?.pause()    playbuttonOutlet.enabled = true}@IBOutlet var urlbutton: UIbutton!overrIDe func vIEwDIDLoad() {    super.vIEwDIDLoad()    // Do any additional setup after loading the vIEw,typically from a nib.    urlbutton.enabled = false    let vIDeoURL = NSURL(string: "http://path/to/vIDeo.m3u8")    playbuttonOutlet.enabled = false    movIEItem = AVPlayerItem(URL: NSURL(string: "http://path/to/vIDeo.m3u8"))    movIEItem.addobserver(self,forKeyPath: "timedMetadata",options: nil,context: nil)    Player = AVPlayer(playerItem: movIEItem)    var MetaArray: Array<Any> = [movIEPlayer?.timedMetadata]    asset = AVAsset.assetWithURL(vIDeoURL) as? AVAsset    playerItem = AVPlayerItem(asset: asset)    playerItem = AVPlayerItem(URL: NSURL(string: "http://path/to/vIDeo.m3u8"))    playerItem.addobserver(self,context: nil)    playerItem.addobserver(self,forKeyPath: "presentationSize",context: nil)    player = AVPlayer(playerItem: playerItem)    playerLayer = AVPlayerLayer(player: player)    playerLayer!.frame = vIDeoVIEw.bounds    vIDeoVIEw.layer.addSublayer(self.playerLayer)    player!.play()    NSNotificationCenter.defaultCenter().addobserver(        self,selector: "rotated",@R_419_6889@: UIDeviceOrIEntationDIDChangeNotification,object: nil)}    overrIDe func observeValueForKeyPath(keyPath: String,ofObject object: AnyObject,change: [NSObject : AnyObject],context: UnsafeMutablePointer<VoID>) -> VoID {        if keyPath != "timedMetadata" { return }        var data: AVPlayerItem = object as AVPlayerItem        var urlError = false        for item in data.timedMetadata as [AVMetadataItem] {            println(item.stringValue)            var MetaArray: Array<Any> = [playerItem?.timedMetadata]            println("Total objects in array \(MetaArray[0])")            var data = item.stringValue          url = Nsstring(string: data) as Nsstring!            if url != nil {             urlbutton.enabled = true                println("The url is \(url)")            } else {                urlError = true            }            var urlRedirect = NSURL(fileURLWithPath: "\(url)")            println("The url is \(urlRedirect)")        }    }overrIDe func dIDReceiveMemoryWarning() {    super.dIDReceiveMemoryWarning()    // dispose of any resources that can be recreated.}func rotated(){    if(UIDeviceOrIEntationIsLandscape(UIDevice.currentDevice().orIEntation))    {     self.navigationController?.navigationbarHIDden = true        playerLayer?.frame = CGRectMake(0,self.vIEw.frame.size.wIDth,self.vIEw.frame.size.height)        playerLayer?.frame = CGRectMake(0,self.vIEw.frame.size.height)        println("landscape")    }    if(UIDeviceOrIEntationIsPortrait(UIDevice.currentDevice().orIEntation))    {        self.navigationController?.navigationbarHIDden = false        playerLayer!.frame = vIDeoVIEw.bounds        println("portraight")    } }}

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