For algorithm, I think it is almost the best. But for implementation, there might be another optimization. Remember, the choice of algorithm is much dependent upon the hardware architecture.
Regards,
Li xiaochao.Jeff
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Subject: mad-dev Digest, Vol 20, Issue 2
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> 1. Synthesis filter bank in libmad (Karthika)
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> Message: 1
> Date: Thu, 29 Mar 2007 07:45:58 +0100 (BST)
> From: Karthika <
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> Subject: [mad-dev] Synthesis filter bank in libmad
> To: MAD <
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> Helloo,
> I am trying to understand the synthesis filter
> bank in the LIBMAD. I could not understand in what
> order the D coefficients are used to obtain the PCM
> samples. Also,half of these coefficients have some
> relation to the other half. Then, why all the
> coefficients are being used in D.dat file? What is the
> significance of even and odd pointers? How is the
> windowing operation between U vector and D vector
> taking place?
>
> Also, I would like to know if we can further
> optimize the LIBMAD source code. For e.g, by using
> Cooley-Tukey algorithm for the calculation of
> fastdct() and dct32() . Could anyone suggest any
> further optimization techniques for porting LIBMAD on
> an ARM processor?
>
> Any help will be greatly appreciated.
>
> Thanks and Regards,
> Karthika Lakshmi.
>
>
>
>
>
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> End of mad-dev Digest, Vol 20, Issue 2
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