iOS:如何将视频PHAsset转换为NSData

时间:2015-08-14 07:47:21

标签: ios swift video cloud phasset

我想将存储在iPhone上的视频放到我的Google云端硬盘中。 我已经完成了图像,但对于视频,这是另一个问题...

对于图像,没问题,我用这种方法将资产转换为NSData:

   data = UIImagePNGRepresentation(result!)!

我把图像放到了我的驱动器上!

但是,对于视频,我尝试了许多不同的方法,但不,我不能。

我该怎么办?

非常感谢!

4 个答案:

答案 0 :(得分:20)

我做到了!

这是解决方案:

    PHCachingImageManager().requestAVAssetForVideo(asset, options: nil, resultHandler: {(asset: AVAsset?, audioMix: AVAudioMix?, info: [NSObject : AnyObject]?) in
        dispatch_async(dispatch_get_main_queue(), {

            let asset = asset as? AVURLAsset
            var data = NSData(contentsOfURL: asset.URL)
    })
})

然后,你有了一个好的NSData变量,可用于将你的视频放到云端!

答案 1 :(得分:1)

已为Swift 5更新

PHImageManagerPHCachingImageManager可在此处使用

PHImageManager.default().requestAVAsset(forVideo: asset,
                                        options: nil) { (asset, audioMix, info) in
     if 
         let asset = asset as? AVURLAsset,
         let data = NSData(contentsOf: asset.url) {
             //do smth with data
         }
      }
                                                        
}

答案 2 :(得分:0)

请为我添加Bellow解决方案

如果您错过了option.isNetworkAccessAllowed = true,那么您通常会在网址错误

private let options: PHVideoRequestOptions = PHVideoRequestOptions()

option.isNetworkAccessAllowed = true 

PHImageManager.default().requestAVAsset(-------

答案 3 :(得分:0)

同步获取图像/视频 Swift 5 + 缓存

extension PHAsset {
    func getImage() -> UIImage? {
        let manager = PHCachingImageManager.default
        let option = PHImageRequestOptions()
        option.isSynchronous = true
        var img: UIImage? = nil
        manager().requestImage(for: self, targetSize: CGSize(width: self.pixelWidth, height: self.pixelHeight), contentMode: .aspectFit, options: nil, resultHandler: {(result, info) -> Void in
            img = result!
        })
        return img
    }

    func getVideo() -> NSData? {
        let manager = PHCachingImageManager.default
        let option = PHImageRequestOptions()
        option.isSynchronous = true
        var resultData: NSData? = nil
    
        manager().requestAVAsset(forVideo: self, options: nil) { (asset, audioMix, info) in
            if let asset = asset as? AVURLAsset, let data = NSData(contentsOf: asset.url) {
                resultData = data
            }
        }
        return resultData
    }
}