gstreamer/gst/volume/gstvolume.h
Andy Wingo 92d4e11782 Initial revision
Original commit message from CVS:
Initial revision
2001-12-22 23:27:17 +00:00

98 lines
2.4 KiB
C

/* -*- c-basic-offset: 2 -*-
* 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 __GST_VOLUME_H__
#define __GST_VOLUME_H__
#include <config.h>
#include <gst/gst.h>
// #include <gst/meta/audioraw.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_VOLUME \
(gst_volume_get_type())
#define GST_VOLUME(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VOLUME,GstVolume))
#define GST_VOLUME_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ULAW,GstVolume))
#define GST_IS_VOLUME(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VOLUME))
#define GST_IS_VOLUME_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VOLUME))
typedef struct _GstVolume GstVolume;
typedef struct _GstVolumeClass GstVolumeClass;
typedef enum _GstVolumeFormat GstVolumeFormat;
enum _GstVolumeFormat {
GST_VOLUME_FORMAT_INT=1,
GST_VOLUME_FORMAT_FLOAT
};
struct _GstVolume {
GstElement element;
GstPad *sinkpad, *srcpad;
gboolean silent;
gboolean muted;
gint16 volume_i;
gfloat volume_f;
/* the next three are valid for both int and float */
GstVolumeFormat format;
guint rate;
guint channels;
/* the next five are valid only for format==GST_VOLUME_FORMAT_INT */
guint width;
guint depth;
guint endianness;
guint law;
gboolean is_signed;
/* the next three are valid only for format==GST_VOLUME_FORMAT_FLOAT */
const gchar *layout;
gfloat slope;
gfloat intercept;
};
struct _GstVolumeClass {
GstElementClass parent_class;
};
GType gst_volume_get_type(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GST_VOLUME_H__ */