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/*
* Copyright (C) 2008-2009 SVOX AG, Baslerstr. 30, 8048 Zuerich, Switzerland
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file picofftsg.h
*
* include file for FFT/DCT related data types, constants and functions in Pico
*
* Copyright (C) 2008-2009 SVOX AG, Baslerstr. 30, 8048 Zuerich, Switzerland
* All rights reserved.
*
* History:
* - 2009-04-20 -- initial version
*
*/
#ifndef PICOFFTSG_H_
#define PCOFFTSG_H_
#include "picoos.h"
#include "picodsp.h"
#ifdef __cplusplus
extern "C" {
#endif
#if 0
}
#endif
#define PICOFFTSG_FFTTYPE picoos_int32
extern void rdft(int n, int isgn, PICOFFTSG_FFTTYPE *a);
extern void dfct(int n, float *a, int VAL_SHIFT);
extern void dfct_nmf(int n, int *a);
extern float norm_result(int m2, PICOFFTSG_FFTTYPE *tmpX, PICOFFTSG_FFTTYPE *norm_window);
#ifdef __cplusplus
}
#endif
#endif
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