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/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*
*/
#include "dl/api/armOMX.h"
#include "dl/api/omxtypes.h"
#include "dl/sp/api/armSP.h"
#include "dl/sp/api/omxSP.h"
/**
* Function: omxSP_FFTGetBufSize_R_F32
*
* Description:
* Computes the size of the specification structure required for the length
* 2^order real FFT and IFFT functions.
*
* Remarks:
* This function is used in conjunction with the 32-bit functions
* <FFTFwd_RToCCS_F32_Sfs> and <FFTInv_CCSToR_F32_Sfs>.
*
* Parameters:
* [in] order base-2 logarithm of the length; valid in the range
* [1,12]. ([1,15] if BIG_FFT_TABLE is defined.)
* [out] pSize pointer to the number of bytes required for the
* specification structure.
*
* Return Value:
* Standard omxError result. See enumeration for possible result codes.
*
*/
OMXResult omxSP_FFTGetBufSize_R_F32(OMX_INT order, OMX_INT *pSize) {
if (!pSize || (order < 1) || (order > TWIDDLE_TABLE_ORDER))
return OMX_Sts_BadArgErr;
/*
* The required size is the same as for R_S32, because the
* elements are the same size and because ARMsFFTSpec_R_SC32 is
* the same size as ARMsFFTSpec_R_FC32.
*/
return omxSP_FFTGetBufSize_R_S32(order, pSize);
}
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