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我正在尝试将我的项目更新到 swift 3.0，但我在 UnsafeMutablePointer 中遇到了问题。
这是我的错误
Cannot invoke initializer for type 'UnsafeMutablePointer<uint8>' with an argument list of type '(UnsafeMuatableRawpointer?)'
代码:
let imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)
let src_buff = CVPixelBufferGetBaseAddress(imageBuffer!)
let dataBuffer = UnsafeMutablePointer<UInt8>(src_buff) //error here
为什么？如何解决？
最佳答案
从 void 指针(又名 UnsafeMutableRawPointer)转换在 Swift 3 中发生了变化。您有 2 个选项:
如果您知道缓冲区长度(更安全):
let dataBuffer = src_buff?.bindMemory(to: UInt8.self, capacity: len)
如果你不知道:
let dataBuffer = src_buff?.assumingMemoryBound(to: UInt8.self)
关于ios - 无法调用类型 'UnsafeMutablePointer' <uint8 >' with an argument list of type '(UnsafeMuatableRawpointer？)的初始值设定项'，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39560144/