Mixing
how to add CIFilters to a video at runtime
2
I have recorded a video using avfoundation and after clicking on the video its start to play on a new viewcontroller. The problem is, I wouldn't be able to add filter effects to a playing video. Following is the code of what i have achieved.
import UIKit
import AVFoundation
class VideoPlayback: UIViewController {
let avPlayer = AVPlayer()
var avPlayerLayer: AVPlayerLayer!
var videoURL: URL!
@IBOutlet weak var videoView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self, selector: #selector(finishVideo), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: nil)
avPlayerLayer = AVPlayerLayer(player: avPlayer)
avPlayerLayer.frame = view.bounds
avPlayerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
videoView.layer.insertSublayer(avPlayerLayer, at: 0)
view.layoutIfNeeded()
let playerItem = AVPlayerItem(url: videoURL as URL)
avPlayer.replaceCurrentItem(with: playerItem)
avPlayer.play()
}
@objc func finishVideo()
{
print("Video Finished")
self.performSegue(withIdentifier: "unwindToFifteenSeconds", sender: self)
}
// Remove Observer
deinit {
NotificationCenter.default.removeObserver(self)
}
}
Above code is only to play a video that was captured by the camera using AVfoundation. I only need to add CIfilters to this played video.
swift video filter avfoundation cifilter
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
add a comment |
2
I have recorded a video using avfoundation and after clicking on the video its start to play on a new viewcontroller. The problem is, I wouldn't be able to add filter effects to a playing video. Following is the code of what i have achieved.
import UIKit
import AVFoundation
class VideoPlayback: UIViewController {
let avPlayer = AVPlayer()
var avPlayerLayer: AVPlayerLayer!
var videoURL: URL!
@IBOutlet weak var videoView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self, selector: #selector(finishVideo), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: nil)
avPlayerLayer = AVPlayerLayer(player: avPlayer)
avPlayerLayer.frame = view.bounds
avPlayerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
videoView.layer.insertSublayer(avPlayerLayer, at: 0)
view.layoutIfNeeded()
let playerItem = AVPlayerItem(url: videoURL as URL)
avPlayer.replaceCurrentItem(with: playerItem)
avPlayer.play()
}
@objc func finishVideo()
{
print("Video Finished")
self.performSegue(withIdentifier: "unwindToFifteenSeconds", sender: self)
}
// Remove Observer
deinit {
NotificationCenter.default.removeObserver(self)
}
}
Above code is only to play a video that was captured by the camera using AVfoundation. I only need to add CIfilters to this played video.
swift video filter avfoundation cifilter
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
add a comment |
2
2
2
I have recorded a video using avfoundation and after clicking on the video its start to play on a new viewcontroller. The problem is, I wouldn't be able to add filter effects to a playing video. Following is the code of what i have achieved.
import UIKit
import AVFoundation
class VideoPlayback: UIViewController {
let avPlayer = AVPlayer()
var avPlayerLayer: AVPlayerLayer!
var videoURL: URL!
@IBOutlet weak var videoView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self, selector: #selector(finishVideo), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: nil)
avPlayerLayer = AVPlayerLayer(player: avPlayer)
avPlayerLayer.frame = view.bounds
avPlayerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
videoView.layer.insertSublayer(avPlayerLayer, at: 0)
view.layoutIfNeeded()
let playerItem = AVPlayerItem(url: videoURL as URL)
avPlayer.replaceCurrentItem(with: playerItem)
avPlayer.play()
}
@objc func finishVideo()
{
print("Video Finished")
self.performSegue(withIdentifier: "unwindToFifteenSeconds", sender: self)
}
// Remove Observer
deinit {
NotificationCenter.default.removeObserver(self)
}
}
Above code is only to play a video that was captured by the camera using AVfoundation. I only need to add CIfilters to this played video.
swift video filter avfoundation cifilter
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
I have recorded a video using avfoundation and after clicking on the video its start to play on a new viewcontroller. The problem is, I wouldn't be able to add filter effects to a playing video. Following is the code of what i have achieved.
import UIKit
import AVFoundation
class VideoPlayback: UIViewController {
let avPlayer = AVPlayer()
var avPlayerLayer: AVPlayerLayer!
var videoURL: URL!
@IBOutlet weak var videoView: UIView!
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self, selector: #selector(finishVideo), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: nil)
avPlayerLayer = AVPlayerLayer(player: avPlayer)
avPlayerLayer.frame = view.bounds
avPlayerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill
videoView.layer.insertSublayer(avPlayerLayer, at: 0)
view.layoutIfNeeded()
let playerItem = AVPlayerItem(url: videoURL as URL)
avPlayer.replaceCurrentItem(with: playerItem)
avPlayer.play()
}
@objc func finishVideo()
{
print("Video Finished")
self.performSegue(withIdentifier: "unwindToFifteenSeconds", sender: self)
}
// Remove Observer
deinit {
NotificationCenter.default.removeObserver(self)
}
}
Above code is only to play a video that was captured by the camera using AVfoundation. I only need to add CIfilters to this played video.
swift video filter avfoundation cifilter
swift video filter avfoundation cifilter
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
asked Jan 2 at 8:43
Muneeb JanMuneeb Jan
154
154
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
2
you can apply a filter to a video
let filter = CIFilter(name: "CIGaussianBlur")!
let asset = AVAsset(url: streamURL)
let item = AVPlayerItem(asset: asset)
item.videoComposition = AVVideoComposition(asset: asset, applyingCIFiltersWithHandler: { request in
// Clamp to avoid blurring transparent pixels at the image edges
let source = request.sourceImage.clampingToExtent()
filter.setValue(source, forKey: kCIInputImageKey)
// Vary filter parameters based on video timing
let seconds = CMTimeGetSeconds(request.compositionTime)
filter.setValue(seconds * 10.0, forKey: kCIInputRadiusKey)
// Crop the blurred output to the bounds of the original image
let output = filter.outputImage!.cropping(to: request.sourceImage.extent)
// Provide the filter output to the composition
request.finish(with: output, context: nil)
})
answered Jan 2 at 10:20
PratapPratap
814
i don't get it, could you please tell me where i use this code, sorry for asking too much, basically i am new in ios.
– Muneeb Jan
Jan 2 at 10:33
you can use in "playerItem.videocompostion=...................."
– Pratap
Jan 2 at 10:52
1
Good answer. @Pratap
– Sparsh
Jan 7 at 10:55
the code you gave works only for "CIGaussianBlur" filter. if i want to use another CIFilter, what do i do? @Pra
– Muneeb Jan
Jan 10 at 6:20
you can change filter name it is simple and accept answer
– Pratap
Jan 10 at 6:27
|
show 1 more comment
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
you can apply a filter to a video
let filter = CIFilter(name: "CIGaussianBlur")!
let asset = AVAsset(url: streamURL)
let item = AVPlayerItem(asset: asset)
item.videoComposition = AVVideoComposition(asset: asset, applyingCIFiltersWithHandler: { request in
// Clamp to avoid blurring transparent pixels at the image edges
let source = request.sourceImage.clampingToExtent()
filter.setValue(source, forKey: kCIInputImageKey)
// Vary filter parameters based on video timing
let seconds = CMTimeGetSeconds(request.compositionTime)
filter.setValue(seconds * 10.0, forKey: kCIInputRadiusKey)
// Crop the blurred output to the bounds of the original image
let output = filter.outputImage!.cropping(to: request.sourceImage.extent)
// Provide the filter output to the composition
request.finish(with: output, context: nil)
})
answered Jan 2 at 10:20
PratapPratap
814
i don't get it, could you please tell me where i use this code, sorry for asking too much, basically i am new in ios.
– Muneeb Jan
Jan 2 at 10:33
you can use in "playerItem.videocompostion=...................."
– Pratap
Jan 2 at 10:52
1
Good answer. @Pratap
– Sparsh
Jan 7 at 10:55
the code you gave works only for "CIGaussianBlur" filter. if i want to use another CIFilter, what do i do? @Pra
– Muneeb Jan
Jan 10 at 6:20
you can change filter name it is simple and accept answer
– Pratap
Jan 10 at 6:27
|
show 1 more comment
2
you can apply a filter to a video
let filter = CIFilter(name: "CIGaussianBlur")!
let asset = AVAsset(url: streamURL)
let item = AVPlayerItem(asset: asset)
item.videoComposition = AVVideoComposition(asset: asset, applyingCIFiltersWithHandler: { request in
// Clamp to avoid blurring transparent pixels at the image edges
let source = request.sourceImage.clampingToExtent()
filter.setValue(source, forKey: kCIInputImageKey)
// Vary filter parameters based on video timing
let seconds = CMTimeGetSeconds(request.compositionTime)
filter.setValue(seconds * 10.0, forKey: kCIInputRadiusKey)
// Crop the blurred output to the bounds of the original image
let output = filter.outputImage!.cropping(to: request.sourceImage.extent)
// Provide the filter output to the composition
request.finish(with: output, context: nil)
})
answered Jan 2 at 10:20
PratapPratap
814
i don't get it, could you please tell me where i use this code, sorry for asking too much, basically i am new in ios.
– Muneeb Jan
Jan 2 at 10:33
you can use in "playerItem.videocompostion=...................."
– Pratap
Jan 2 at 10:52
1
Good answer. @Pratap
– Sparsh
Jan 7 at 10:55
the code you gave works only for "CIGaussianBlur" filter. if i want to use another CIFilter, what do i do? @Pra
– Muneeb Jan
Jan 10 at 6:20
you can change filter name it is simple and accept answer
– Pratap
Jan 10 at 6:27
|
show 1 more comment
2
2
2
you can apply a filter to a video
let filter = CIFilter(name: "CIGaussianBlur")!
let asset = AVAsset(url: streamURL)
let item = AVPlayerItem(asset: asset)
item.videoComposition = AVVideoComposition(asset: asset, applyingCIFiltersWithHandler: { request in
// Clamp to avoid blurring transparent pixels at the image edges
let source = request.sourceImage.clampingToExtent()
filter.setValue(source, forKey: kCIInputImageKey)
// Vary filter parameters based on video timing
let seconds = CMTimeGetSeconds(request.compositionTime)
filter.setValue(seconds * 10.0, forKey: kCIInputRadiusKey)
// Crop the blurred output to the bounds of the original image
let output = filter.outputImage!.cropping(to: request.sourceImage.extent)
// Provide the filter output to the composition
request.finish(with: output, context: nil)
})
answered Jan 2 at 10:20
PratapPratap
814
you can apply a filter to a video
let filter = CIFilter(name: "CIGaussianBlur")!
let asset = AVAsset(url: streamURL)
let item = AVPlayerItem(asset: asset)
item.videoComposition = AVVideoComposition(asset: asset, applyingCIFiltersWithHandler: { request in
// Clamp to avoid blurring transparent pixels at the image edges
let source = request.sourceImage.clampingToExtent()
filter.setValue(source, forKey: kCIInputImageKey)
// Vary filter parameters based on video timing
let seconds = CMTimeGetSeconds(request.compositionTime)
filter.setValue(seconds * 10.0, forKey: kCIInputRadiusKey)
// Crop the blurred output to the bounds of the original image
let output = filter.outputImage!.cropping(to: request.sourceImage.extent)
// Provide the filter output to the composition
request.finish(with: output, context: nil)
})
answered Jan 2 at 10:20
PratapPratap
814
answered Jan 2 at 10:20
PratapPratap
814
answered Jan 2 at 10:20
PratapPratap
814
answered Jan 2 at 10:20
PratapPratap
814
814
i don't get it, could you please tell me where i use this code, sorry for asking too much, basically i am new in ios.
– Muneeb Jan
Jan 2 at 10:33
you can use in "playerItem.videocompostion=...................."
– Pratap
Jan 2 at 10:52
1
Good answer. @Pratap
– Sparsh
Jan 7 at 10:55
the code you gave works only for "CIGaussianBlur" filter. if i want to use another CIFilter, what do i do? @Pra
– Muneeb Jan
Jan 10 at 6:20
you can change filter name it is simple and accept answer
– Pratap
Jan 10 at 6:27
|
show 1 more comment
i don't get it, could you please tell me where i use this code, sorry for asking too much, basically i am new in ios.
– Muneeb Jan
Jan 2 at 10:33
you can use in "playerItem.videocompostion=...................."
– Pratap
Jan 2 at 10:52
1
Good answer. @Pratap
– Sparsh
Jan 7 at 10:55
the code you gave works only for "CIGaussianBlur" filter. if i want to use another CIFilter, what do i do? @Pra
– Muneeb Jan
Jan 10 at 6:20
you can change filter name it is simple and accept answer
– Pratap
Jan 10 at 6:27
i don't get it, could you please tell me where i use this code, sorry for asking too much, basically i am new in ios.
– Muneeb Jan
Jan 2 at 10:33
i don't get it, could you please tell me where i use this code, sorry for asking too much, basically i am new in ios.
– Muneeb Jan
Jan 2 at 10:33
you can use in "playerItem.videocompostion=...................."
– Pratap
Jan 2 at 10:52
you can use in "playerItem.videocompostion=...................."
– Pratap
Jan 2 at 10:52
1
1
Good answer. @Pratap
– Sparsh
Jan 7 at 10:55
Good answer. @Pratap
– Sparsh
Jan 7 at 10:55
the code you gave works only for "CIGaussianBlur" filter. if i want to use another CIFilter, what do i do? @Pra
– Muneeb Jan
Jan 10 at 6:20
the code you gave works only for "CIGaussianBlur" filter. if i want to use another CIFilter, what do i do? @Pra
– Muneeb Jan
Jan 10 at 6:20
you can change filter name it is simple and accept answer
– Pratap
Jan 10 at 6:27
you can change filter name it is simple and accept answer
– Pratap
Jan 10 at 6:27
|
show 1 more comment
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