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87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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_AUDIOFILTER_H__
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#define __GST_AUDIOFILTER_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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typedef struct _GstAudiofilter GstAudiofilter;
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typedef struct _GstAudiofilterClass GstAudiofilterClass;
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typedef void (*GstAudiofilterFilterFunc)(GstAudiofilter *filter,
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GstBuffer *outbuf, GstBuffer *inbuf);
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typedef void (*GstAudiofilterInplaceFilterFunc)(GstAudiofilter *filter,
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GstBuffer *buffer);
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typedef void (*GstAudiofilterSetupFunc) (GstAudiofilter *filter);
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#define GST_TYPE_AUDIOFILTER \
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(gst_audiofilter_get_type())
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#define GST_AUDIOFILTER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIOFILTER,GstAudiofilter))
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#define GST_AUDIOFILTER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOFILTER,GstAudiofilterClass))
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#define GST_IS_AUDIOFILTER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIOFILTER))
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#define GST_IS_AUDIOFILTER_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOFILTER))
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struct _GstAudiofilter {
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GstElement element;
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GstPad *sinkpad,*srcpad;
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/* audio state */
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gboolean inited;
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gboolean passthru;
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int rate;
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int width;
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int channels;
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int depth;
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int n_samples;
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int size;
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int bytes_per_sample;
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};
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struct _GstAudiofilterClass {
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GstElementClass parent_class;
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GstCaps *caps;
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GstAudiofilterSetupFunc setup;
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GstAudiofilterInplaceFilterFunc filter_inplace;
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GstAudiofilterFilterFunc filter;
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};
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GType gst_audiofilter_get_type(void);
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void gst_audiofilter_class_add_pad_templates (GstAudiofilterClass *audiofilterclass, const GstCaps *caps);
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G_END_DECLS
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#endif /* __GST_AUDIOFILTER_H__ */
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