I think I've misunderstood they way GR_SYNC_BLOCK
works. Can someone set me strait?
I've called set_history(1) in the constructor; I have
one input and one output. I assumed that the in buffer
would contain noutput_items + 1 samples; with in[0]
being the history (overlap) from the previous.
I'm trying to take a diff then do a cumsum on the
stream.
Can someone point me in the right direction?
-Daniel
work (
int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const float *in = (const float *) input_items[0];
float *out = (float *) output_items[0];
for (int ii = 0; ii < noutput_items; ii++) {
out[ii] = in[ii + 1] - in[ii];
}
for (int ii = 0; ii < noutput_items; ii++) {
d_cumsum = out[i] + d_cumsum;
out[ii] = d_cumsum;
}
return noutput_items;
}
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