完成焦距变焦设定

SwiftProject/SwiftProject/Project/Controller/RecordingVideo/CCSpatialShootController.swift

@@ -13,6 +13,7 @@ import VideoToolbox
 import SVProgressHUD
 
 class CCSpatialShootController: BaseController {
+    var wideAngleCameraDevice:AVCaptureDevice?//测试使用
     
     //AVCaptureSession --- 单摄像头
     var session = AVCaptureMultiCamSession()//多摄像头
@@ -368,11 +369,13 @@ class CCSpatialShootController: BaseController {
             print("Could not find the back camera")
             return
         }
+        wideAngleCameraDevice = backCamera
         
         do {
             print("builtInWideAngleCamera:\(backCamera.videoZoomFactor)")
 //            try backCamera.lockForConfiguration()
-//            backCamera.videoZoomFactor=3.0
+//            backCamera.videoZoomFactor=1.0
+            
 //            backCamera.unlockForConfiguration()
             
             wideAngleCameraDeviceInput = try AVCaptureDeviceInput(device: backCamera)
@@ -396,9 +399,7 @@ class CCSpatialShootController: BaseController {
         
         do {
             print("builtInUltraWideCamera:\(frontCamera.videoZoomFactor)")
-//            try frontCamera.lockForConfiguration()
-//            frontCamera.videoZoomFactor = 8.0//变焦
-//            frontCamera.unlockForConfiguration()
+            
             // 设置焦距
 //            frontCamera.focusMode = .autoFocus
             ultraWideCameraDeviceInput = try AVCaptureDeviceInput(device: frontCamera)
@@ -468,9 +469,14 @@ class CCSpatialShootController: BaseController {
 //            //            view.layer.addSublayer(ultraWideCameraVideoPreviewLayer)
 //            self.view.layer.insertSublayer(ultraWideCameraVideoPreviewLayer, at: 0)
 //        }
-        
         DispatchQueue.global().async {
             self.session.startRunning()
+
+            //变焦设置需要在AVCaptureMultiCamSession statrunning之后设置才会生效
+            try! frontCamera.lockForConfiguration()
+            frontCamera.videoZoomFactor = 1.75//变焦
+            frontCamera.unlockForConfiguration()
+            
         }
     }
     
@@ -589,6 +595,20 @@ class CCSpatialShootController: BaseController {
     //拍照
     @objc func shutterPhotoButtonAction(){
         
+//        do {
+//                try wideAngleCameraDevice?.lockForConfiguration()
+////                wideAngleCameraDevice?.ramp(toVideoZoomFactor: wideAngleCameraDevice!.videoZoomFactor+1.0, withRate: 2)
+//            wideAngleCameraDevice?.videoZoomFactor = wideAngleCameraDevice!.videoZoomFactor+1.0
+//                wideAngleCameraDevice?.unlockForConfiguration()
+//            
+//            print("factor:\(wideAngleCameraDevice!.videoZoomFactor)")
+//        }
+//        catch {
+//            print("wide:err")
+//        }
+//        
+//        return
+        
         shutterPhotoButton.backgroundColor = .gray
         
         imgs.removeAllObjects()