/* ------------------------------------------------------------------
 * 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 */