gstpipefilter.h 2.3 KB
Newer Older
Erik Walthinsen's avatar
Erik Walthinsen committed
1
2
3
4
5
/* GStreamer
 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
 *                    2000 Wim Taymans <wtay@chello.be>
 *
 * gstpipefilter.h: 
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 *
 * 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_PIPEFILTER_H__
#define __GST_PIPEFILTER_H__

#include <sys/types.h>
#include <gst/gst.h>

#include "config.h"

David I. Lehn's avatar
David I. Lehn committed
32
G_BEGIN_DECLS
33
34
35
36
37
38

GstElementDetails gst_pipefilter_details;

#define GST_TYPE_PIPEFILTER \
  (gst_pipefilter_get_type())
#define GST_PIPEFILTER(obj) \
39
  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PIPEFILTER,GstPipefilter))
40
#define GST_PIPEFILTER_CLASS(klass) \
41
  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PIPEFILTER,GstPipefilterClass))
42
#define GST_IS_PIPEFILTER(obj) \
43
  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PIPEFILTER))
44
#define GST_IS_PIPEFILTER_CLASS(obj) \
45
  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PIPEFILTER))
46

47
typedef enum {
48
  GST_PIPEFILTER_OPEN		= GST_ELEMENT_FLAG_LAST,
49

50
  GST_PIPEFILTER_FLAG_LAST	= GST_ELEMENT_FLAG_LAST,
51
52
} GstPipeFilterFlags;

53
54
55
56
typedef struct _GstPipefilter GstPipefilter;
typedef struct _GstPipefilterClass GstPipefilterClass;

struct _GstPipefilter {
57
  GstElement element;
58
59
60
61

  GstPad *sinkpad;
  GstPad *srcpad;

62
63
64
  /* command */
  gchar **command;
  gchar *orig_command;
65
66
67
68
69
70
71
72
73
74
75
76
  /* fd */
  gint fdout[2];
  gint fdin[2];
  pid_t   childpid;

  gulong curoffset;                     /* current offset in file */
  gulong bytes_per_read;                /* bytes per read */

  gulong seq;                           /* buffer sequence number */
};

struct _GstPipefilterClass {
77
  GstElementClass parent_class;
78
79
};

80
GType gst_pipefilter_get_type(void);
81

David I. Lehn's avatar
David I. Lehn committed
82
G_END_DECLS
83
84

#endif /* __GST_PIPEFILTER_H__ */