[cuDNN] How are n,c,h,w strides defined??

I am trying to interleave or merge multiple 4D tensors into one tensor.

To do this i am using cudnnTransformTensor with a strided cudnnTensorDescriptor for the destination tensor.

However i am a bit confused about the meaning of the n,c,h,w stride. For example does the n stride parameter introduce stride of size n or just of size 1 i.e. one float?