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85 lines
2 KiB
C
85 lines
2 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 __AUDIOSCALE_H__
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#define __AUDIOSCALE_H__
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#include <config.h>
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#include <gst/gst.h>
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#include <gst/resample/resample.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_AUDIOSCALE \
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(audioscale_get_type())
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#define GST_AUDIOSCALE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIOSCALE,Audioscale))
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#define GST_AUDIOSCALE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOSCALE,Audioscale))
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#define GST_IS_AUDIOSCALE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIOSCALE))
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#define GST_IS_AUDIOSCALE_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOSCALE))
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typedef enum {
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GST_AUDIOSCALE_NEAREST,
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GST_AUDIOSCALE_BILINEAR,
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GST_AUDIOSCALE_SINC,
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} GstAudioScaleMethod;
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typedef struct _Audioscale Audioscale;
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typedef struct _AudioscaleClass AudioscaleClass;
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struct _Audioscale {
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GstElement element;
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GstPad *sinkpad,*srcpad;
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/* audio state */
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gint format;
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gint channels;
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gint frequency;
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gint targetfrequency;
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gint64 offset;
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resample_t *resample;
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GstBuffer *outbuf;
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};
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struct _AudioscaleClass {
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GstElementClass parent_class;
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};
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GType gst_audioscale_get_type(void);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __AUDIOSCALE_H__ */
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