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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_AUDIOFILTER_H__
#define __GST_AUDIOFILTER_H__
#include <gst/gst.h>
G_BEGIN_DECLS
typedef struct _GstAudiofilter GstAudiofilter;
typedef struct _GstAudiofilterClass GstAudiofilterClass;
typedef void (*GstAudiofilterFilterFunc)(GstAudiofilter *filter,
GstBuffer *outbuf, GstBuffer *inbuf);
typedef void (*GstAudiofilterInplaceFilterFunc)(GstAudiofilter *filter,
GstBuffer *buffer);
typedef void (*GstAudiofilterSetupFunc) (GstAudiofilter *filter);
#define GST_TYPE_AUDIOFILTER \
(gst_audiofilter_get_type())
#define GST_AUDIOFILTER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIOFILTER,GstAudiofilter))
#define GST_AUDIOFILTER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOFILTER,GstAudiofilterClass))
#define GST_IS_AUDIOFILTER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIOFILTER))
#define GST_IS_AUDIOFILTER_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOFILTER))
struct _GstAudiofilter {
GstElement element;
GstPad *sinkpad,*srcpad;
/* audio state */
gboolean inited;
int rate;
int width;
int channels;
int depth;
gboolean passthru;
};
struct _GstAudiofilterClass {
GstElementClass parent_class;
GstCaps2 *caps;
GstAudiofilterSetupFunc setup;
GstAudiofilterInplaceFilterFunc filter_inplace;
GstAudiofilterFilterFunc filter;
};
GType gst_audiofilter_get_type(void);
void gst_audiofilter_class_add_pad_templates (GstAudiofilterClass *audiofilterclass, const GstCaps2 *caps);
G_END_DECLS
#endif /* __GST_AUDIOFILTER_H__ */
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