如何将CVPixelBufferGetBaseAddress调用转换为Swift？

CVPixelBufferGetbaseAddress()

UnsafeMutablePointer<Void>

UInt8

let buf = UnsafeMutablePointer<UInt8>(CVPixelBufferGetbaseAddress(pixelBuffer))

Swift 3（Xpre 8）的更新，Swift 5（Xpre 11）的检查：

if let baseAddress = CVPixelBufferGetbaseAddress(pixelBuffer) {    let buf = baseAddress.assumingMemoryBound(to: UInt8.self)    // `buf` is `UnsafeMutablePointer<UInt8>`} else {    // `baseAddress` is `nil`}