如何在swift 3.3x中從AVURLAsset URL訪問視頻/圖像？

我有AVUrlAsset像這樣的「file：///var/mobile/Media/DCIM/101APPLE/IMG_1006.MOV」。我如何從Swift中的這個URL訪問視頻？如何在swift 3.3x中從AVURLAsset URL訪問視頻/圖像？

來源

2017-06-02 Ganesh

這樣，您就可以獲取所有視頻

 DispatchQueue.global(qos: .background).async { 

     PHPhotoLibrary.requestAuthorization { (status) -> Void in 

      let allVidOptions = PHFetchOptions() 
      allVidOptions.predicate = NSPredicate(format: "mediaType = %d", PHAssetMediaType.video.hashValue) //Any type you want to fetch 
      allVidOptions.sortDescriptors = [NSSortDescriptor(key: "creationDate", ascending: true)] 


//Now the set the option to `fetchAssets` 
      let allVids = PHAsset.fetchAssets(with: allVidOptions) 

      print("All Videos Count \(allVids.count)") 

      for index in 0..<allVids.count { 

       let videoRequestOptions =   PHVideoRequestOptions() 
       videoRequestOptions.deliveryMode = .fastFormat //quality-> 360p mp4 
       videoRequestOptions.version =  .original 


       PHImageManager.default().requestPlayerItem(forVideo: allVids[index], options: videoRequestOptions , resultHandler: { (playerItem, result) in 

        // print(result as! [String: AnyObject]) 
        // print(playerItem) 

        let currentVideoUrlAsset = playerItem?.asset as? AVURLAsset 

        let currentVideoFilePAth = currentVideoUrlAsset!.url 

        let lastObject = currentVideoFilePAth.pathExtension 

        print(lastObject) 

        if lastObject == "M4V" { 

         self.arrOfVideos.append(playerItem!) 

        } 


        //NSString *lastPath = [videoURL lastPathComponent]; 
        //NSString *fileExtension = [lastPath pathExtension]; 
        //NSLog(@"File extension %@",fileExtension); 


        var i = Int() 
        print("Appending.... \(i);)") 
        i += 1 

        print("My Videos Count \(self.arrOfVideos.count)") 


        DispatchQueue.main.async(execute: { 

         self.tblVideos.reloadData() 
        }) 

       }) 

       //fetch Asset here 
       //print(allVids[index].description) 
       // print(self.arrOfVideos) //will show empty first then after above completion the execution will come here again 

      } 

     } 

    }

來源

2017-06-02 09:38:00

你''AVUrlAsset？ –

可以說我只是有網址（文件：///var/mobile/Media/DCIM/101APPLE/IMG_1006.MOV）多數民衆贊成它，所以我怎麼可以從中訪問媒體？ iOS不允許直接訪問您通過'PHImageManager'訪問的文件路徑 – Ganesh

，您將從中獲取'playerItem'。 –

我想，你已經知道的URL路徑。那麼你可以做如下：

let urlStr = URL.init(fileURLWithPath:"file:///var/mobile/Media/DCIM/101APPLE/IMG_1006.MOV") 
let asset = AVURLAsset.init(url: urlStr)

的apple reference幫助

來源

2017-06-02 10:28:24 dengApro

但是，當我嘗試將網址轉換爲數據，即讓data = NSData（contentsOf：asset.url）在這裏變爲零 – Ganesh

我建議讓數據= Data.init（contentsOf：asset.url） – dengApro

謝謝您，但Still數據無法獲取。 – Ganesh

如何在swift 3.3x中從AVURLAsset URL訪問視頻/圖像？

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