gstreamer/gst/audioscale/gstaudioscale.h

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