2 * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
3 * 2004,2005 Wim Taymans <wim@fluendo.com>
5 * gstconfig.h: GST_DISABLE_* macros for build configuration
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
25 * @short_description: Build configuration options
27 * This describes the configuration options for GStreamer. When building
28 * GStreamer there are a lot of parts (known internally as "subsystems" ) that
29 * can be disabled for various reasons. The most common reasons are speed and
30 * size, which is important because GStreamer is designed to run on embedded
33 * If a subsystem is disabled, most of this changes are done in an API
34 * compatible way, so you don't need to adapt your code in most cases. It is
35 * never done in an ABI compatible way though. So if you want to disable a
36 * subsystem, you have to rebuild all programs depending on GStreamer, too.
38 * If a subsystem is disabled in GStreamer, a value is defined in
39 * <gst/gst.h>. You can check this if you do subsystem-specific stuff.
40 * <example id="example-gstconfig">
41 * <title>Doing subsystem specific things</title>
43 * &hash;ifndef GST_DISABLE_GST_DEBUG
44 * // do stuff specific to the debugging subsystem
45 * &hash;endif // GST_DISABLE_GST_DEBUG
50 #ifndef __GST_CONFIG_H__
51 #define __GST_CONFIG_H__
53 /* trick gtk-doc into believing these symbols are defined (yes, it's ugly) */
56 #define GST_DISABLE_GST_DEBUG 1
57 #define GST_DISABLE_PARSE 1
58 #define GST_DISABLE_TRACE 1
59 #define GST_DISABLE_ALLOC_TRACE 1
60 #define GST_DISABLE_REGISTRY 1
61 #define GST_DISABLE_PLUGIN 1
62 #define GST_HAVE_GLIB_2_8 1
65 /***** default padding of structures *****/
67 #define GST_PADDING_INIT { NULL }
69 /***** padding for very extensible base classes *****/
70 #define GST_PADDING_LARGE 20
72 /***** disabling of subsystems *****/
75 * GST_DISABLE_GST_DEBUG:
77 * Configures the inclusion of the debugging subsystem
79 @GST_DISABLE_GST_DEBUG_DEFINE@
84 * Configures the inclusion of the gst-launch parser
86 @GST_DISABLE_PARSE_DEFINE@
91 * Configures the inclusion of a resource tracing facility
92 * (seems to be unused)
94 @GST_DISABLE_TRACE_DEFINE@
97 * GST_DISABLE_ALLOC_TRACE:
99 * Configures the use of a memory tracer based on the resource tracer
100 * if TRACE is disabled, ALLOC_TRACE is disabled as well
102 @GST_DISABLE_ALLOC_TRACE_DEFINE@
105 * GST_DISABLE_REGISTRY:
107 * Configures the use of the plugin registry.
108 * If one disables this, required plugins need to be loaded and registered
111 @GST_DISABLE_REGISTRY_DEFINE@
113 /* FIXME: test and document these! */
114 /* Configures the use of external plugins */
115 @GST_DISABLE_PLUGIN_DEFINE@
117 /* whether or not the CPU supports unaligned access */
118 @GST_HAVE_UNALIGNED_ACCESS_DEFINE@
123 * Export the given variable from the built shared object.
125 * On Windows, this exports the variable from the DLL.
126 * On other platforms, this gets defined to "extern".
131 * Export the plugin's definition.
133 * On Windows, this exports the plugin definition from the DLL.
134 * On other platforms, this gets defined as a no-op.
137 #define GST_PLUGIN_EXPORT __declspec(dllexport) extern
139 #define GST_EXPORT __declspec(dllexport) extern
141 #define GST_EXPORT __declspec(dllimport) extern
143 #else /* not _MSC_VER */
144 #define GST_PLUGIN_EXPORT
145 #if (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
146 #define GST_EXPORT extern __attribute__ ((visibility ("default")))
148 #define GST_EXPORT extern
152 #endif /* __GST_CONFIG_H__ */