[LAD] Help with resampling algorithm

Hi everyone,
  I am hoping this is the right place to post this question.

I am trying to implement the resampling algorithm as described in this 
paper: https://ccrma.stanford.edu/~jos/resample/resample.pdf

I managed to construct the h (windowed sinc) table, and I have 
implemented the loop. I am having a hard time to compute the eta 
interpolation factor and the l index index for the h table. The "fixed 
point" implementation of the paper is a bit confusing to me.

Looking at figure 7 in the paper, I think the interpolation factor needs 
to be computed between the h entries instead of between the original 
samples. However I don't understand how to compute the starting point 
(h(l)).

I have just started working with audio code, so I might be 
misunderstanding something fundamental about the paper.

I have coded a prototype which is shared here: 
https://gist.github.com/theWatchmen/746f35c349748525b412cfd9466608ce

Apologies in advance if this is not the right forum.

Marco
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