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