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Runtime error
Runtime error
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// Copyright 2019 The TensorFlow Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import UIKit
import AVFoundation
/// The camera frame is displayed on this view.
class PreviewView: UIView {
var previewLayer: AVCaptureVideoPreviewLayer {
guard let layer = layer as? AVCaptureVideoPreviewLayer else {
fatalError("Layer expected is of type VideoPreviewLayer")
}
return layer
}
var session: AVCaptureSession? {
get {
return previewLayer.session
}
set {
previewLayer.session = newValue
}
}
override class var layerClass: AnyClass {
return AVCaptureVideoPreviewLayer.self
}
}
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