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libavcodec: Implementation of 32 bit fixed point FFT

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Iterative implementation of 32 bit fixed point split-radix FFT.
Max FFT that can be calculated currently is 2^12.

Signed-off-by: Nedeljko Babic <nbabic@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Nedeljko Babic
2013-06-03 16:11:12 +02:00
committed by Michael Niedermayer
parent 27cc3e72f8
commit 18d7074b4e
19 changed files with 543 additions and 36 deletions
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libavcodec/fft_float.c
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@@ -17,4 +17,5 @@
*/
#define CONFIG_FFT_FLOAT 1
#define CONFIG_FFT_FIXED_32 0
#include "fft.c"