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/* ------------------------------------------------------------------
* Copyright (C) 1998-2009 PacketVideo
*
* 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.
* -------------------------------------------------------------------
*/
/*
Pathname: ./include/fft_rx4.h
------------------------------------------------------------------------------
REVISION HISTORY
(1) modified definition of w_64rx4 from Int to Int16
Who: Date:
Description:
------------------------------------------------------------------------------
INCLUDE DESCRIPTION
Header file for functions fft_rx4()
------------------------------------------------------------------------------
*/
/*----------------------------------------------------------------------------
; CONTINUE ONLY IF NOT ALREADY DEFINED
----------------------------------------------------------------------------*/
#ifndef FFT_RX4_H
#define FFT_RX4_H
/*----------------------------------------------------------------------------
; INCLUDES
----------------------------------------------------------------------------*/
#include "pv_audio_type_defs.h"
/*----------------------------------------------------------------------------
; MACROS
; Define module specific macros here
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; DEFINES
; Include all pre-processor statements here.
----------------------------------------------------------------------------*/
#define FFT_RX4_LONG 256
#define ONE_FOURTH_FFT_RX4_LONG ((FFT_RX4_LONG)>>2)
#define FFT_RX4_SHORT 64
#define ONE_FOURTH_FFT_RX4_SHORT ((FFT_RX4_SHORT)>>2)
/*----------------------------------------------------------------------------
; EXTERNAL VARIABLES REFERENCES
; Declare variables used in this module but defined elsewhere
----------------------------------------------------------------------------*/
extern const Int16 w_64rx4[];
extern const Int32 W_64rx4[];
extern const Int32 W_256rx4[];
extern const Int32 w_512rx2[];
/*----------------------------------------------------------------------------
; SIMPLE TYPEDEF'S
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; ENUMERATED TYPEDEF'S
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; STRUCTURES TYPEDEF'S
----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
; GLOBAL FUNCTION DEFINITIONS
; Function Prototype declaration
----------------------------------------------------------------------------*/
#ifdef __cplusplus
extern "C"
{
#endif
void fft_rx4_long(
Int32 Data[],
Int32 *peak_value);
Int fft_rx4_short(
Int32 Data[],
Int32 *peak_value);
#ifdef __cplusplus
}
#endif
/*----------------------------------------------------------------------------
; END
----------------------------------------------------------------------------*/
#endif /* FFT_RX4_H */
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