快速获取修剪过的视频的缩略图 [英] Getting thumbnail for trimmed video in swift

问题描述

这是我的代码:
当我尝试这样做时
self.my.image = UIImage(contentsOfFile: "\(self.sharedelegate.editthumbforvideo)"),
self.my 的值.image 总是打印 nil.self.videodelegate.editthumbforvideo 数据类型是 (UIImage) 而 my.image 是 (UIImageview).

Here is my code:
When I try to do this
self.my.image = UIImage(contentsOfFile: "\(self.sharedelegate.editthumbforvideo)"),
the value of self.my.image is always printing nil.self.videodelegate.editthumbforvideo datatype is (UIImage) and my.image is (UIImageview).

不知道如何解决这个问题，无法获得修剪后的视频的缩略图.

Don't know how to overcome this issue and can't get thumbnail image of trimmed video.

提前致谢

            let url=NSURL(fileURLWithPath: videoPath as String)
            let asset: AVAsset = AVAsset(URL: url)
            let imageGenerator = AVAssetImageGenerator(asset: asset);
            imageGenerator.appliesPreferredTrackTransform = true

            let timestamp = CMTime(seconds: 0.0, preferredTimescale:        60)
            var actualTime : CMTime = CMTimeMake(0, 0)
            let myImage = try?( imageGenerator.copyCGImageAtTime(timestamp, actualTime: &actualTime))
            self.image=UIImage(CGImage: myImage!)
            print("my print...\(self.image)")
            self.videodelegate.editthumbforvideo = self.image
            self.my.image = UIImage(contentsOfFile: "\(self.sharedelegate.editthumbforvideo)")

推荐答案

您可以通过编写以下代码来创建缩略图，

You can create thumbnail by writing below code,

var err: NSError? = nil
let url=NSURL(fileURLWithPath: videoPath as String)
let asset = AVURLAsset(URL: url, options: nil)
let imgGenerator = AVAssetImageGenerator(asset: asset)
let cgImage = imgGenerator.copyCGImageAtTime(CMTimeMake(0, 1), actualTime: nil, error: &err)

let uiImage = UIImage(CGImage: cgImage)
let imageView = UIImageView(image: uiImage)

希望对您有所帮助.

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