Hello all I believe I have found a bug in digital_fll_band_edge_cc.cc: with the same input under different cpu loads I see different outputs. It seems to have something to do with how the block uses output history from the output_items parameter. Modifying it to use its own internal buffer to store output for the next iteration instead of using the output_items parameter seems to fix the problem.
Also modifying digital_fll_band_edge_cc to use SSE instructions for its dot product instead of a for loop gives a nice performance improvement. I have attached diffs of my version of the files. Regards Hendrik van Wyk
digital_fll_band_edge_cc.cc.patch
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digital_fll_band_edge_cc.h.patch
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