GPUImage2 - Comment obtenir l'URL de la vidéo traitée pour l'enregistrer sur le périphérique ?

Question

Quelqu'un peut-il m'aider à récupérer l'URL de la vidéo traitée dans la bibliothèque GPUImage2 après avoir appliqué le filtre vidéo ?

do {
    let bundleURL = Bundle.main.resourceURL!
    let movieURL = URL(string:"sample_iPod.m4v", relativeTo:bundleURL)!
    movie = try MovieInput(url:movieURL, playAtActualSpeed:true)
    filter = SaturationAdjustment()
    movie --> filter --> renderView
    movie.start()
} catch {
    fatalError("Could not initialize rendering pipeline: \(error)")
}

Merci d'avance, James

Answer 1

 func applyfilters(){
    do {
        // movie input
        movieInput = try MovieInput(url: inputVideoUrl, playAtActualSpeed: true, loop: false)

        // movie output
        movieOutput = try MovieOutput(URL: outputVideoUrl, size: videoSize, liveVideo: false)             

        // pipeline
        movieInput.addTarget(currentFilter)
        currentFilter.addTarget(renderView)
        currentFilter.addTarget(movieOutput!)

        movieOutput!.startRecording()
        movieInput.start()

    } catch {
        print(error.localizedDescription)
    }
 }

 //Below function should be called after the filter is applied on full video. If you call this function before video ends it will not generate the rest part of the video.

 func stopVideoRecording(completion: (() -> Void)?) {
    movieOutput?.finishRecording {
        completion?()
    }
 }

 //To save video
 func saveVideo(){
    PHPhotoLibrary.shared().performChanges({
        PHAssetChangeRequest.creationRequestForAssetFromVideo(atFileURL: outputVideoUrl)
    }) { saved, error in
        if saved {
            let alertController = UIAlertController(title: "Your video was successfully saved", message: nil, preferredStyle: .alert)
            let defaultAction = UIAlertAction(title: "OK", style: .default, handler: nil)
            alertController.addAction(defaultAction)
            self.present(alertController, animated: true, completion: nil)
        }
    }
 }

Exemple d'utilisation

  applyFilters()

  DispatchQueue.main.asyncAfter(deadline:.now()+AVAsset(url:inputVideoUrl).duration.seconds, execute: {
       stopVideoRecording{
            self.saveVideo()
       }
  })