Why doesn't CVPixelBufferCreateWithPlanarBytes execute the memory release callback? - ios

Question

I create a buffer with CVPixelBufferCreateWithPlanarBytes and pass a callback function as a parameter:
CVPixelBufferCreateWithPlanarBytes(NULL, imf.iWidth, imf.iHeight, pixelFormat, NULL, 0, 3, (void**)ppPlaneData, nPlaneWidth, nPlaneHeight, nPlaneBytesPerRow, LAVSinkPixelBufferReleasePlanarBytes, ppPlaneData, NULL, &buffer)
For some reason my callback LAVSinkPixelBufferReleasePlanarBytes is not called after I release the buffer with CVPixelBufferRelease(buffer).
However a different callback is called properly if I use CVPixelBufferCreateWithBytes function, but I want to use the planar data version.
Larger code snippet:
void LAVSinkPixelBufferReleasePlanarBytes(void* releaseRefCon, const void* dataPtr, size_t dataSize, size_t numberOfPlanes, const void* planeAddresses[])
{
// This is never called
}
...
...
size_t nPlaneSize[3];
uint8_t** ppPlaneData = new uint8_t*[3];
for (int i = 0; i < 3; i++) {
nPlaneSize[i] = nPlaneBytesPerRow[i] * nPlaneHeight[i];
ppPlaneData[i] = new uint8_t[nPlaneSize[i]];
memcpy(ppPlaneData[i], ppPlaneAddress[i], nPlaneSize[i]);
}
if (CVPixelBufferCreateWithPlanarBytes(NULL, imf.iWidth, imf.iHeight, pixelFormat, NULL, 0, 3, (void**)ppPlaneData, nPlaneWidth, nPlaneHeight, nPlaneBytesPerRow, LAVSinkPixelBufferReleasePlanarBytes, ppPlaneData, NULL, &buffer) != kCVReturnSuccess) break;
const BOOL result = [adaptor appendPixelBuffer:buffer withPresentationTime:timestamp];
CVPixelBufferRelease(buffer);
I found someone else asking the same question with much cleaner sample code:
http://prod.lists.apple.com/archives/cocoa-dev/2013/Nov/msg00177.html
But unfortunately there is no answer.