gstreamer/testsuite/alsa/sinesrc.h

/*
 * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
 *
 * sinesrc.h: Header file for sinesrc.c
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef __SINESRC_H__
#define __SINESRC_H__


#include <gst/gst.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
  

#define TYPE_SINESRC \
  (sinesrc_get_type())
#define SINESRC(obj) \
  (G_TYPE_CHECK_INSTANCE_CAST((obj),TYPE_SINESRC,SineSrc))
#define SINESRC_CLASS(klass) \
  (G_TYPE_CHECK_CLASS_CAST((klass),TYPE_SINESRC,SineSrcClass))
#define IS_SINESRC(obj) \
  (G_TYPE_CHECK_INSTANCE_TYPE((obj),TYPE_SINESRC))
#define IS_SINESRC_CLASS(obj) \
  (G_TYPE_CHECK_CLASS_TYPE((klass),TYPE_SINESRC))

typedef struct _SineSrc SineSrc;
typedef struct _SineSrcClass SineSrcClass;

typedef void (*PreGetFunc) (SineSrc *src);

typedef enum {
  SINE_SRC_INT,
  SINE_SRC_FLOAT
} SineSrcAudio;

struct _SineSrc {
  GstElement element;

  /* pads */
  GstPad *src;

  /* audio parameters */
  SineSrcAudio type;
  gint width; /* int + float */
  gint depth; /* int */
  gboolean sign; /* int */
  gint endianness; /* int */
  
  gint rate;
  gint channels; /* interleaved */
  
  gboolean newcaps;
  
  /* freaky stuff for testing */
  PreGetFunc pre_get_func;
};

struct _SineSrcClass {
  GstElementClass parent_class;
};

GType           sinesrc_get_type                (void);
GstElement *    sinesrc_new                     (void);

void            sinesrc_set_pre_get_func        (SineSrc *src, PreGetFunc func);

#ifdef __cplusplus
}
#endif /* __cplusplus */


#endif /* __GST_SINESRC_H__ */