iOS 6 issue Convert MPMediaItem to NSData

Question

i had tried the below code.

   -(void)mediaItemToData : (MPMediaItem * ) curItem
{
    NSURL *url = [curItem valueForProperty: MPMediaItemPropertyAssetURL];

            


        

Answer 1

Try this one written in Swift4 and reason of using AVAssetExportSession https://stackoverflow.com/a/36694392/5653015

func mediaPicker(_ mediaPicker: MPMediaPickerController, didPickMediaItems mediaItemCollection: MPMediaItemCollection)
{
    //get media item first
    guard let mediaItem = mediaItemCollection.items.first else
    {
        NSLog("No item selected.")
        return
    }


    let songUrl = mediaItem.value(forProperty: MPMediaItemPropertyAssetURL) as! URL
    print(songUrl)

    // get file extension andmime type
    let str = songUrl.absoluteString
    let str2 = str.replacingOccurrences( of : "ipod-library://item/item", with: "")
    let arr = str2.components(separatedBy: "?")
    var mimeType = arr[0]
    mimeType = mimeType.replacingOccurrences( of : ".", with: "")

    let exportSession = AVAssetExportSession(asset: AVAsset(url: songUrl), presetName: AVAssetExportPresetAppleM4A)
    exportSession?.shouldOptimizeForNetworkUse = true
    exportSession?.outputFileType = AVFileType.m4a

    //save it into your local directory
    let documentURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!
    let outputURL = documentURL.appendingPathComponent(mediaItem.title!)
    print(outputURL.absoluteString)
    //Delete Existing file
    do
    {
        try FileManager.default.removeItem(at: outputURL)
    }
    catch let error as NSError
    {
        print(error.debugDescription)
    }

    exportSession?.outputURL = outputURL
    exportSession?.exportAsynchronously(completionHandler: { () -> Void in

        if exportSession!.status == AVAssetExportSessionStatus.completed
        {
            print("Export Successfull")
          //  self.getAudio()
        }
        self.dismiss(animated: true, completion: nil)
    })
}