将 Objective C 转换为 swift 时出错

Question

我的Objective C代码：

NSDictionary *rgbOutputSettings = [NSDictionary dictionaryWithObject:
                                   [NSNumber numberWithInt:kCMPixelFormat_32BGRA] forKey:(id)kCVPixelBufferPixelFormatTypeKey];
[self.videoDataOutput setVideoSettings:rgbOutputSettings];

试了很多次还是报错。 我就是这样试的。

Swift:

var rgbOutputSettings: [NSObject: AnyObject] = kCVPixelBufferPixelFormatKey as! AnyObject: Int(kCMPixelFormat_32BGRA)]
self.videoOutput = rgbOutputSettings

错误：无法为 "int.init" 找到接受所提供参数的重载

Answer 1

尝试以下：

videoOutput.videoSettings = [kCVPixelBufferPixelFormatTypeKey : Int(kCVPixelFormatType_32BGRA)]

Answer 2

var rgbOutputSettings = NSDictionary(objects: NSNumber(int: Int(kCMPixelFormat_32BGRA)), forKeys: kCVPixelBufferPixelFormatTypeKey)
self.videoDataOutput.setVideoSettings(rgbOutputSettings)

Answer 3

试试这个

let rgbOutputSettings = [kCVPixelBufferPixelFormatTypeKey as NSString :  NSNumber.init(unsignedInt: kCMPixelFormat_32BGRA)] as NSDictionary
self.videoOutput = rgbOutputSettings