1
2
3
4
5
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstparse.h: get a pipeline from a text pipeline description
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_PARSE_H__
#define __GST_PARSE_H__
#include <gst/gstelement.h>
G_BEGIN_DECLS
GQuark gst_parse_error_quark (void);
/**
* GST_PARSE_ERROR:
*
* Get access to the error quark of the parse subsystem.
*/
#define GST_PARSE_ERROR gst_parse_error_quark ()
/**
* GstParseError:
* @GST_PARSE_ERROR_SYNTAX: A syntax error occurred.
* @GST_PARSE_ERROR_NO_SUCH_ELEMENT: The description contained an unknown element
* @GST_PARSE_ERROR_NO_SUCH_PROPERTY: An element did not have a specified property
* @GST_PARSE_ERROR_LINK: There was an error linking two pads.
* @GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY: There was an error setting a property
* @GST_PARSE_ERROR_EMPTY_BIN: An empty bin was specified.
* @GST_PARSE_ERROR_EMPTY: An empty description was specified
*
* The different parsing errors that can occur.
*/
typedef enum
{
GST_PARSE_ERROR_SYNTAX,
GST_PARSE_ERROR_NO_SUCH_ELEMENT,
GST_PARSE_ERROR_NO_SUCH_PROPERTY,
GST_PARSE_ERROR_LINK,
GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY,
GST_PARSE_ERROR_EMPTY_BIN,
GST_PARSE_ERROR_EMPTY
} GstParseError;
/**
* GstParseFlags:
* @GST_PARSE_FLAG_NONE: Do not use any special parsing options.
* @GST_PARSE_FLAG_FATAL_ERRORS: Always return %NULL when an error occurs
* (default behaviour is to return partially constructed bins or elements
* in some cases)
* @GST_PARSE_FLAG_NO_SINGLE_ELEMENT_BINS: If a bin only has a single element,
* just return the element.
*
* Parsing options.
*/
typedef enum
{
GST_PARSE_FLAG_NONE = 0,
GST_PARSE_FLAG_FATAL_ERRORS = (1 << 0),
GST_PARSE_FLAG_NO_SINGLE_ELEMENT_BINS = (1 << 1)
} GstParseFlags;
#define GST_TYPE_PARSE_CONTEXT (gst_parse_context_get_type())
/**
* GstParseContext:
*
* Opaque structure.
*/
typedef struct _GstParseContext GstParseContext;
/* create, process and free a parse context */
GType gst_parse_context_get_type (void);
GstParseContext * gst_parse_context_new (void) G_GNUC_MALLOC;
gchar ** gst_parse_context_get_missing_elements (GstParseContext * context) G_GNUC_MALLOC;
void gst_parse_context_free (GstParseContext * context);
/* parse functions */
GstElement * gst_parse_launch (const gchar * pipeline_description,
GError ** error) G_GNUC_MALLOC;
GstElement * gst_parse_launchv (const gchar ** argv,
GError ** error) G_GNUC_MALLOC;
GstElement * gst_parse_launch_full (const gchar * pipeline_description,
GstParseContext * context,
GstParseFlags flags,
GError ** error) G_GNUC_MALLOC;
GstElement * gst_parse_launchv_full (const gchar ** argv,
GstParseContext * context,
GstParseFlags flags,
GError ** error) G_GNUC_MALLOC;
G_END_DECLS
#endif /* __GST_PARSE_H__ */
|
