swift - 如何将CVImageBuffer转换为Unmanaged <CVImageBuffer>？

我在Swift中有此代码，并得到一个错误：CVImageBuffer不能转换为非托管

  func getTextureFromSampleBuffer(sampleBuffer: CMSampleBuffer!) -> GLuint {
    cleanupVideoTextures()
   var unmanagedImageBuffer: Unmanaged<CVImageBuffer> = CMSampleBufferGetImageBuffer(sampleBuffer)  // Here get the error
    var imageBuffer = unmanagedImageBuffer.takeUnretainedValue()
    var opaqueImageBuffer = unmanagedImageBuffer.toOpaque()

我怎么能投这个？
谢谢！

最佳答案

CMSampleBufferGetImageBuffer()不接受非托管对象（不再？–也许这改变了
在测试版之间）。你可以替换

var unmanagedImageBuffer: Unmanaged<CVImageBuffer> = CMSampleBufferGetImageBuffer(sampleBuffer)  // Here get the error
var imageBuffer = unmanagedImageBuffer.takeUnretainedValue()

简单地

var imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer)

关于swift - 如何将CVImageBuffer转换为Unmanaged <CVImageBuffer>？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/25633669/