diff options
Diffstat (limited to 'media/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_F32.c')
-rw-r--r-- | media/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_F32.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/media/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_F32.c b/media/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_F32.c new file mode 100644 index 0000000000..19b16bbd95 --- /dev/null +++ b/media/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_F32.c @@ -0,0 +1,49 @@ +/* + * 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); +} |