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46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
/* spek-fft.h
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*
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* Copyright (C) 2010 Alexander Kojevnikov <alexander@kojevnikov.com>
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*
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* Spek is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Spek is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Spek. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __SPEK_FFT_H__
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#define __SPEK_FFT_H__
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#include <glib.h>
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#include <libavcodec/avfft.h>
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typedef struct {
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/* Internal data */
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RDFTContext *cx;
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gint n;
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gint threshold;
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/* Exposed properties */
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gfloat *input;
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gfloat *output;
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} SpekFftPlan;
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/* Allocate buffers and create a new FFT plan */
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SpekFftPlan * spek_fft_plan_new (gint n, gint threshold);
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/* Execute the FFT on plan->input */
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void spek_fft_execute (SpekFftPlan *p);
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/* Destroy the plan and de-allocate buffers */
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void spek_fft_destroy (SpekFftPlan *p);
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#endif
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