14

ユーザーが入力または選択した特定の開始点から特定の終了点まで、録画したビデオをトリミングする必要があるタスクに取り組んでいます。どうすればいいですか。以前使用UIVideoEditorControllerしていたように、デフォルトのビューを使用したくなく、ビデオを直接トリミングしたい。

let FinalUrlTosave = NSURL(string: "\(newURL)")
    exportSession!.outputURL=FinalUrlTosave
    exportSession!.shouldOptimizeForNetworkUse = true
    // exportSession.outputFileType = AVFileTypeQuickTimeMovie
    exportSession!.outputFileType = AVFileTypeQuickTimeMovie;
    let start:CMTime
    let duration:CMTime
    var st = starttime.doubleValue
    var ed = endTime.doubleValue
    start = CMTimeMakeWithSeconds(st, 600)
    duration = CMTimeMakeWithSeconds(ed, 600)
    // let timeRangeForCurrentSlice = CMTimeRangeMake(start, duration)
    let range = CMTimeRangeMake(start, duration);
    exportSession!.timeRange = range

       exportSession!.exportAsynchronouslyWithCompletionHandler({
        switch exportSession!.status{
        case  AVAssetExportSessionStatus.Failed:

            print("failed \(exportSession!.error)")
        case AVAssetExportSessionStatus.Cancelled:
            print("cancelled \(exportSession!.error)")
        default:
            print("complete....complete")
            //                self.SaveVideoToPhotoLibrary(destinationURL1!)

        }
    })

これを使用して目標を達成しようとしていますが、成功していません。

エラーメッセージ：

失敗しました Optional(Error Domain=NSURLErrorDomain Code=-1100 "要求された URL がこのサーバーで見つかりませんでした。" UserInfo={NSErrorFailingURLStringKey=file:///var/mobile/Containers/Data/Application/E68D3BFD-6923-4EA6-9FB3 -C020CE4AA9D4/Documents/moment/jGq_9AUFa47s2ZiiPP4x.mp4、NSErrorFailingURLKey=file:///var/mobile/Containers/Data/Application/E68D3BFD-6923-4EA6-9FB3-C020CE4AA9D4/Documents/moment/jGq_9AUFa47s2ZiiPP4x.mp4、要求された NSDe Localizedこのサーバーで URL が見つかりませんでした。, NSUnderlyingError=0x1553c220 {エラー ドメイン = N

2 回目に発生したエラー:

失敗したオプション(エラー ドメイン=NSURLErrorDomain コード=-3000 "ファイルを作成できません" UserInfo={NSUnderlyingError=0x14e00000 {エラー ドメイン=NSOSStatusErrorDomain コード=-12124 "(null)"}、NSLocalizedDescription=ファイルを作成できません})

4

4 に答える 4

34

この方法を使用して解決策を見つけましたが、それは魅力のように機能します....

func cropVideo(sourceURL1: NSURL, statTime:Float, endTime:Float)
{
    let manager = NSFileManager.defaultManager()
    
    guard let documentDirectory = try? manager.URLForDirectory(.DocumentDirectory, inDomain: .UserDomainMask, appropriateForURL: nil, create: true) else {return}
    guard let mediaType = "mp4" as? String else {return}
    guard let url = sourceURL1 as? NSURL else {return}
    
    if mediaType == kUTTypeMovie as String || mediaType == "mp4" as String {
        let asset = AVAsset(URL: url)
        let length = Float(asset.duration.value) / Float(asset.duration.timescale)
        print("video length: \(length) seconds")
        
        let start = statTime
        let end = endTime
        
        var outputURL = documentDirectory.URLByAppendingPathComponent("output")
        do {
            try manager.createDirectoryAtURL(outputURL, withIntermediateDirectories: true, attributes: nil)
            let name = Moment.newName()
            outputURL = outputURL.URLByAppendingPathComponent("\(name).mp4")
        }catch let error {
            print(error)
        }
        
        //Remove existing file
        _ = try? manager.removeItemAtURL(outputURL)
        
        
        guard let exportSession = AVAssetExportSession(asset: asset, presetName: AVAssetExportPresetHighestQuality) else {return}
        exportSession.outputURL = outputURL
        exportSession.outputFileType = AVFileTypeMPEG4
        
        let startTime = CMTime(seconds: Double(start ?? 0), preferredTimescale: 1000)
        let endTime = CMTime(seconds: Double(end ?? length), preferredTimescale: 1000)
        let timeRange = CMTimeRange(start: startTime, end: endTime)
        
        exportSession.timeRange = timeRange
        exportSession.exportAsynchronouslyWithCompletionHandler{
            switch exportSession.status {
            case .Completed:
                print("exported at \(outputURL)")
               self.saveVideoTimeline(outputURL)
            case .Failed:
                print("failed \(exportSession.error)")
                
            case .Cancelled:
                print("cancelled \(exportSession.error)")
                
            default: break
            }
        }
    }
}

スイフト5

    func cropVideo(sourceURL1: URL, statTime:Float, endTime:Float)
{
    let manager = FileManager.default

    guard let documentDirectory = try? manager.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true) else {return}
    let mediaType = "mp4"
    if mediaType == kUTTypeMovie as String || mediaType == "mp4" as String {
        let asset = AVAsset(url: sourceURL1 as URL)
        let length = Float(asset.duration.value) / Float(asset.duration.timescale)
        print("video length: \(length) seconds")

        let start = statTime
        let end = endTime

        var outputURL = documentDirectory.appendingPathComponent("output")
        do {
            try manager.createDirectory(at: outputURL, withIntermediateDirectories: true, attributes: nil)
            outputURL = outputURL.appendingPathComponent("\(UUID().uuidString).\(mediaType)")
        }catch let error {
            print(error)
        }

        //Remove existing file
        _ = try? manager.removeItem(at: outputURL)


        guard let exportSession = AVAssetExportSession(asset: asset, presetName: AVAssetExportPresetHighestQuality) else {return}
        exportSession.outputURL = outputURL
        exportSession.outputFileType = .mp4

        let startTime = CMTime(seconds: Double(start ), preferredTimescale: 1000)
        let endTime = CMTime(seconds: Double(end ), preferredTimescale: 1000)
        let timeRange = CMTimeRange(start: startTime, end: endTime)

        exportSession.timeRange = timeRange
        exportSession.exportAsynchronously{
            switch exportSession.status {
            case .completed:
                print("exported at \(outputURL)")
            case .failed:
                print("failed \(exportSession.error)")

            case .cancelled:
                print("cancelled \(exportSession.error)")

            default: break
            }
        }
    }
}
于 2016-03-01T06:33:18.393 に答える