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Diffstat (limited to 'include/gst/fft/gstfft.h')
| -rw-r--r-- | include/gst/fft/gstfft.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/gst/fft/gstfft.h b/include/gst/fft/gstfft.h new file mode 100644 index 0000000000..b3ff54aef9 --- /dev/null +++ b/include/gst/fft/gstfft.h @@ -0,0 +1,57 @@ +/* GStreamer + * Copyright (C) <2007> Sebastian Dröge <slomo@circular-chaos.org> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#include <glib.h> +#include <math.h> +#include <gst/gst.h> + +#ifndef __GST_FFT_H__ +#define __GST_FFT_H__ + +#include <gst/fft/fft-prelude.h> + +G_BEGIN_DECLS + +/** + * GstFFTWindow: + * @GST_FFT_WINDOW_RECTANGULAR: Rectangular window + * @GST_FFT_WINDOW_HAMMING: Hamming window + * @GST_FFT_WINDOW_HANN: Hann (sometimes also called Hanning) window + * @GST_FFT_WINDOW_BARTLETT: Bartlett window + * @GST_FFT_WINDOW_BLACKMAN: Blackman window + * + * The various window functions available. + */ +typedef enum +{ + GST_FFT_WINDOW_RECTANGULAR, + GST_FFT_WINDOW_HAMMING, + GST_FFT_WINDOW_HANN, + GST_FFT_WINDOW_BARTLETT, + GST_FFT_WINDOW_BLACKMAN +} GstFFTWindow; + +/* Functions */ + +GST_FFT_API +gint gst_fft_next_fast_length (gint n) G_GNUC_CONST; + +G_END_DECLS + +#endif /* __GST_FFT_H__ */ |