gstreamer/gst/audioscale/gstaudioscale.h
Zaheer Abbas Merali d9e22cf818 gst/audioscale/gstaudioscale.*: made audioscale resample from any sample rate to any sample rate
Original commit message from CVS:
2004-08-17  Zaheer Abbas Merali  <zaheerabbas at merali dot org>

* gst/audioscale/gstaudioscale.c:
* gst/audioscale/gstaudioscale.h:
made audioscale resample from any sample rate to any sample rate
2004-08-17 21:27:30 +00:00

81 lines
2.1 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 <gst/gst.h>
#include <gst/resample/resample.h>
G_BEGIN_DECLS
#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 */
gboolean passthru;
gint64 gst_resample_offset;
gint64* offsets;
gboolean increase; /* is the rate change an increase */
gint num_iterations; /* number of iterations through gst_audioscale/(increase|decrease)_rate */
gst_resample_t gst_resample_template;
gst_resample_t* gst_resample;
GstBuffer* outbuf;
};
struct _AudioscaleClass {
GstElementClass parent_class;
};
GType gst_audioscale_get_type(void);
G_END_DECLS
#endif /* __AUDIOSCALE_H__ */