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37363960d7
Original commit message from CVS: * gst/filter/gstbpwsinc.h: * gst/filter/gstiir.h: * gst/filter/gstlpwsinc.h: Don't forget new files.
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* -*- c-basic-offset: 2 -*-
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*
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* GStreamer
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* Copyright (C) 1999-2001 Erik Walthinsen <omega@cse.ogi.edu>
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* 2006 Dreamlab Technologies Ltd. <mathis.hofer@dreamlab.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_IIR_H__
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#define __GST_IIR_H__
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#include "gstfilter.h"
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#include "iir.h"
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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G_BEGIN_DECLS
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#define GST_TYPE_IIR \
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(gst_iir_get_type())
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#define GST_IIR(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IIR,GstIIR))
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#define GST_IIR_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IIR,GstIIRClass))
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#define GST_IS_IIR(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IIR))
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#define GST_IS_IIR_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IIR))
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typedef struct _GstIIR GstIIR;
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typedef struct _GstIIRClass GstIIRClass;
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/**
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* GstIIR:
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*
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* Opaque data structure.
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*/
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struct _GstIIR {
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GstBaseTransform element;
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double A, B;
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double gain;
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int stages;
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IIR_state *state;
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};
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struct _GstIIRClass {
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GstBaseTransformClass parent_class;
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};
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G_END_DECLS
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#endif /* __GST_IIR_H__ */
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