CVPixelBufferReleasePlanarBytesCallback

Declaration

typealias CVPixelBufferReleasePlanarBytesCallback = (UnsafeMutableRawPointer?, UnsafeRawPointer?, Int, Int, UnsafeMutablePointer<UnsafeRawPointer?>?) -> Void

Parameters

• releaseRefCon:

  A pointer to application-defined data. This pointer is the same as that passed in the releaseRefCon parameter of Cvpixelbuffercreatewithplanarbytes(_:_:_:_:_:_:_:_:_:_:_:_:_:_:_:).

• dataPtr:

  A pointer to a plane descriptor block. This is the same pointer you passed to Cvpixelbuffercreatewithplanarbytes(_:_:_:_:_:_:_:_:_:_:_:_:_:_:_:) in the dataPtr parameter.

• dataSize:

  The size value you passed to Cvpixelbuffercreatewithplanarbytes(_:_:_:_:_:_:_:_:_:_:_:_:_:_:_:) in the dataSize parameter.

• numberOfPlanes:

  The number of planes value you passed to Cvpixelbuffercreatewithplanarbytes(_:_:_:_:_:_:_:_:_:_:_:_:_:_:_:) in the numberOfPlanes parameter.

• planeAddresses:

  A pointer to the base plane address you passed to Cvpixelbuffercreatewithplanarbytes(_:_:_:_:_:_:_:_:_:_:_:_:_:_:_:) in the basePlaneAddress parameter.

Discussion

You would declare a callback named MyPixelBufferReleasePlanarBytes like this:

Discussion

You use this callback to release the pixels and perform any other cleanup when a pixel buffer is released.

See Also

Callbacks

• CVPixelBufferReleaseBytesCallback