仅在 iPhone XR 上打开相机拍摄视频时应用程序崩溃

Question

我仅在 iPhone XR 上收到以下崩溃和错误消息。

** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '** -[AVCaptureDevice setActiveColorSpace:] Not supported - use activeFormat.supportedColorSpaces'


CoreFoundation                       0x00000002038d23a8 __exceptionPreprocess + 232
1   libobjc.A.dylib                      0x0000000202ad7d00 objc_exception_throw + 56
2   AVFoundation                         0x0000000209950220 __47-[AVCaptureFigVideoDevice setActiveColorSpace:]_block_invoke + 204
3   libdispatch.dylib                    0x00000002032e1884 _dispatch_client_callout + 16
4   libdispatch.dylib                    0x00000002032ee404 _dispatch_lane_barrier_sync_invoke_and_complete + 56
5   AVFoundation                         0x00000002099500e4 -[AVCaptureFigVideoDevice setActiveColorSpace:] + 132
6   Foundation                           0x000000020433247c ___NSSetLongLongValueAndNotify_block_invoke + 44
7   Foundation                           0x00000002043360f4 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:maybeNewValuesDict:usingBlock:] + 608
8   Foundation                           0x0000000204283688 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:] + 68
9   Foundation                           0x0000000204331860 _NSSetLongLongValueAndNotify + 280
10  AVFoundation                         0x000000020996c808 -[AVCaptureSession _updateDeviceActiveFormatsAndActiveConnections] + 5064
11  AVFoundation                         0x000000020996acac -[AVCaptureSession _buildAndRunGraph] + 104
12  AVFoundation                         0x0000000209964ce4 -[AVCaptureSession _commitConfiguration] + 108
13  Foundation                           0x0000000204332208 ___NSSetObjectValueAndNotify_block_invoke + 44
14  Foundation                           0x00000002043360f4 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:maybeNewValuesDict:usingBlock:] + 608
15  Foundation                           0x0000000204283688 -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:] + 68
16  Foundation                           0x0000000204330b8c _NSSetObjectValueAndNotify + 280
17  CameraUI                             0x00000002207ba3a0 -[CAMModeAndDeviceCommand executeWithContext:] + 668
18  CameraUI                             0x00000002207b9a74 -[CAMCaptureEngine _executeCommand:withContext:] + 212
19  CameraUI                             0x00000002207b9b2c -[CAMCaptureEngine _executeCommand:withContext:] + 396
20  CameraUI                             0x00000002207b9528 __35-[CAMCaptureEngine enqueueCommand:]_block_invoke + 104

Answer 1

错误消息说：

-[AVCaptureDevice setActiveColorSpace:] Not supported - use activeFormat.supportedColorSpaces'

您正在尝试传递一个不可用的值。根据苹果文档，并非所有设备都具有相同的可用色彩空间列表。 https://developer.apple.com/documentation/avfoundation/avcapturedevice/1648668-activecolorspace

这就是为什么它只在你提到的 XR 上失败。

在尝试设置之前，您需要使用 activeFormat.supportedColorSpaces 检查当前设备支持哪些值。

Answer 2

如果您尝试通过在您的应用程序中配置 AVCaptureSession 来运行相机会话，它会根据设备格式支持的 ColorSpaces 和当前 AVCaptureSession 拓扑自动调整 AVCaptureDevice 的 activeFormat 和 activeColorSpace 属性。尝试将 class AVCaptureSession 的属性 "automaticallyConfiguresCaptureDeviceForWideColor" 设置为 false。

captureSessionInstance.automaticallyConfiguresCaptureDeviceForWideColor = false

当您不在该视图中时也停止运行ning 捕获会话，并在需要时重新启动。

captureSessionInstance.stopRunning()

captureSessionInstance.startRunning()

仅在 iPhone XR 上打开相机拍摄视频时应用程序崩溃

Application crashing when opening camera to capture video only on iPhone XR

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