AVPlayer 截屏（swift3.0）

 

 

 

开始做的是一般的vod视频截屏，用AVAssetImageGenerator对象就可以实现，而且可以截取任意时间点的视频图像

片段代码： open func generateThumbnails(times: [TimeInterval],maximumSize: CGSize, completionHandler: @escaping (([EZPlayerThumbnail]) -> Swift.Void )){        guard let imageGenerator = self.imageGenerator else {            return;        }                var values = [NSValue]()        for time in times {            values.append(NSValue(time: CMTimeMakeWithSeconds(time,CMTimeScale(NSEC_PER_SEC))))        }                var thumbnailCount = values.count        var thumbnails = [EZPlayerThumbnail]()        imageGenerator.cancelAllCGImageGeneration()        imageGenerator.appliesPreferredTrackTransform = true        imageGenerator.maximumSize = maximumSize        imageGenerator.generateCGImagesAsynchronously(forTimes:values) { (requestedTime: CMTime,image: CGImage?,actualTime: CMTime,result: AVAssetImageGeneratorResult,error: Error?) in                        let thumbnail = EZPlayerThumbnail(requestedTime: requestedTime, image: image == nil ? nil :  UIImage(cgImage: image!) , actualTime: actualTime, result: result, error: error)            thumbnails.append(thumbnail)            thumbnailCount -= 1            if thumbnailCount == 0 {                DispatchQueue.main.async {                    completionHandler(thumbnails)                    NotificationCenter.default.post(name: .EZPlayerThumbnailsGenerated, object: self, userInfo: [Notification.Key.EZPlayerThumbnailsKey:thumbnails])                }                            }        }    }

 

 

后来对m3u8截屏发现拿不到流，哦这方法应该对HLS流不行,后来发现AVPlayerItemVideoOutput可以实现,但是只能截取最新的播放的视频图片

片段代码：  func snapshotImage() -> UIImage? {        guard let playerItem = self.playerItem else {  //playerItem is AVPlayerItem            return nil        }                if self.videoOutput == nil {            self.videoOutput = AVPlayerItemVideoOutput(pixelBufferAttributes: nil)            playerItem.remove(self.videoOutput!)            playerItem.add(self.videoOutput!)        }                guard let videoOutput = self.videoOutput else {            return nil        }                let time = videoOutput.itemTime(forHostTime: CACurrentMediaTime())        if videoOutput.hasNewPixelBuffer(forItemTime: time) {            let lastSnapshotPixelBuffer = videoOutput.copyPixelBuffer(forItemTime: time, itemTimeForDisplay: nil)            if lastSnapshotPixelBuffer != nil {                let ciImage = CIImage(cvPixelBuffer: lastSnapshotPixelBuffer!)                let context = CIContext(options: nil)                let rect = CGRect(x: CGFloat(0), y: CGFloat(0), width: CGFloat(CVPixelBufferGetWidth(lastSnapshotPixelBuffer!)), height: CGFloat(CVPixelBufferGetHeight(lastSnapshotPixelBuffer!)))                let cgImage = context.createCGImage(ciImage, from: rect)                if cgImage != nil {                    return UIImage(cgImage: cgImage!)                }            }        }        return nil    }

 

thx：

详细代码： https://github.com/easyui/EZPlayer/blob/master/EZPlayer/EZPlayer.swift

使用AVPlayer播放m3u8视频时，实现视频截图 http://blog.csdn.net/hherima/article/details/53576872

iOS 小坑记录：如何给 AVPlayer 截图http://darktechlabs.com/2016/07/15/iOS-%E5%B0%8F%E5%9D%91%E8%AE%B0%E5%BD%95%EF%BC%9A%E5%A6%82%E4%BD%95%E7%BB%99-AVPlayer-%E6%88%AA%E5%9B%BE/

 

iOS获取m3u8流媒体的视频截图http://www.jianshu.com/p/bd30ce34a76f

 

Real-time Video Processing Using AVPlayerItemVideoOutput https://developer.apple.com/library/content/samplecode/AVBasicVideoOutput/Introduction/Intro.html