mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-14 05:12:09 +00:00
85 lines
2 KiB
C
85 lines
2 KiB
C
/* 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__ */
|