libavcodec: Implementation of 32 bit fixed point FFT
Iterative implementation of 32 bit fixed point split-radix FFT. Max FFT that can be calculated currently is 2^12. Signed-off-by: NNedeljko Babic <nbabic@mips.com> Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>
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libavcodec/fft-fixed32-test.c
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libavcodec/fft_init_table.c
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libavcodec/mdct_fixed_32.c
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