/* GStreamer * Copyright (C) 1999,2000 Erik Walthinsen * 2004,2005 Wim Taymans * * gstconfig.h: GST_DISABLE_* macros for build configuration * * 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. */ /** * SECTION:gstconfig * @short_description: Build configuration options * * This describes the configuration options for GStreamer. When building * GStreamer there are a lot of parts (known internally as "subsystems" ) that * can be disabled for various reasons. The most common reasons are speed and * size, which is important because GStreamer is designed to run on embedded * systems. * * If a subsystem is disabled, most of this changes are done in an API * compatible way, so you don't need to adapt your code in most cases. It is * never done in an ABI compatible way though. So if you want to disable a * suybsystem, you have to rebuild all programs depending on GStreamer, too. * * If a subsystem is disabled in GStreamer, a value is defined in * <gst/gst.h>. You can check this if you do subsystem-specific stuff. * * Doing subsystem specific things * * &hash;ifndef GST_DISABLE_GST_DEBUG * // do stuff specific to the debugging subsystem * &hash;endif // GST_DISABLE_GST_DEBUG * * */ #ifndef __GST_CONFIG_H__ #define __GST_CONFIG_H__ /* trick gtk-doc into believing these symbols are defined (yes, it's ugly) */ #if 0 #define GST_DISABLE_GST_DEBUG 1 #define GST_DISABLE_LOADSAVE 1 #define GST_DISABLE_PARSE 1 #define GST_DISABLE_TRACE 1 #define GST_DISABLE_ALLOC_TRACE 1 #define GST_DISABLE_REGISTRY 1 #define GST_DISABLE_PLUGIN 1 #define GST_DISABLE_XML 1 #define GST_DISABLE_LOADSAVE_REGISTRY 1 #define GST_HAVE_GLIB_2_8 1 #endif /***** default padding of structures *****/ #define GST_PADDING 4 #define GST_PADDING_INIT { NULL } /***** padding for very extensible base classes *****/ #define GST_PADDING_LARGE 20 /***** disabling of subsystems *****/ /** * GST_DISABLE_GST_DEBUG: * * Configures the inclusion of the debugging subsystem */ @GST_DISABLE_GST_DEBUG_DEFINE@ /** * GST_DISABLE_LOADSAVE: * * Configures the inclusion of the plugin graph xml-serialisation * (was used in 0.8 by gst-editor) */ @GST_DISABLE_LOADSAVE_DEFINE@ /** * GST_DISABLE_PARSE: * * Configures the inclusion of the gst-lauch parser */ @GST_DISABLE_PARSE_DEFINE@ /** * GST_DISABLE_TRACE: * * Configures the inclusion of a resource tracing facillity * (seems to be unused) */ @GST_DISABLE_TRACE_DEFINE@ /** * GST_DISABLE_ALLOC_TRACE: * * Configures the use of a memory tracer based on the resource tracer * if TRACE is disabled, ALLOC_TRACE is disabled as well */ @GST_DISABLE_ALLOC_TRACE_DEFINE@ /** * GST_DISABLE_REGISTRY: * * Configures the use of the plugin registry. * If one disables this, required plugins need to be loaded and registered * manually */ @GST_DISABLE_REGISTRY_DEFINE@ /** * GST_DISABLE_XML: * * Configures the use libxml2. This setting is derived from the settings of * %GST_DISABLE_LOADSAVE and %GST_DISABLE_REGISTRY (in the xml registry case). */ @GST_DISABLE_XML_DEFINE@ /* FIXME: test and document these! */ /* Configures the use of external plugins */ @GST_DISABLE_PLUGIN_DEFINE@ /* printf extension format */ /** * GST_PTR_FORMAT: * * printf format type used to debug GStreamer types. * This can only be used on types whose size is >= sizeof(gpointer). */ @GST_PRINTF_EXTENSION_POINTER_FORMAT_DEFINE@ /** * GST_SEGMENT_FORMAT: * * printf format type used to debug GStreamer segments. * This can only be used on pointers to GstSegment structures. * * Since: 0.10.10 */ @GST_PRINTF_EXTENSION_SEGMENT_FORMAT_DEFINE@ /* whether or not GST_PTR_FORMAT or GST_SEGMENT_FORMAT are using * the printf extension mechanism. This is for internal use in our * header files so we know whether we can use G_GNUC_PRINTF or not */ @GST_USING_PRINTF_EXTENSION_DEFINE@ /* GST_DISABLE_PRINTF_EXTENSION: * * Define this to debug your debug log messages and make gcc spew warnings * if printf format string and arguments don't match up (this is usually * not the case when libc and gcc are used because printf format warnings * have to be disabled when the printf extension mechanism is in use). * * Note that using this option disables 'pretty logging' of GStreamer objects * like caps, tags, structures, events, pads etc., so that only their address * will be printed in the log. * * This define only disables use of the special registered printf format * extensions in the code compiled with it defined. It does not stop * GStreamer from registering these extensions in the first place if it * was compiled against a libc that supports this. * * (not official API) */ /* If GLib is not using the system printf, we can't use the registered * extensions because the GLib-internal printf won't know how to parse them */ #if defined(GST_DISABLE_PRINTF_EXTENSION) || !defined(GLIB_USING_SYSTEM_PRINTF) #undef GST_PTR_FORMAT #define GST_PTR_FORMAT "p" #undef GST_SEGMENT_FORMAT #define GST_SEGMENT_FORMAT "p" #undef GST_USING_PRINTF_EXTENSION #endif /* whether or not the CPU supports unaligned access */ @GST_HAVE_UNALIGNED_ACCESS_DEFINE@ /***** Deal with XML stuff, we have to handle both loadsave and registry *****/ /* FIXME: move include to where we need it */ /*#if (! (defined(GST_DISABLE_LOADSAVE) && defined(GST_DISABLE_REGISTRY)) )*/ #ifndef GST_DISABLE_XML #else /* FIXME: 0.11 (replace by GST_DISABLE_XML) */ # define GST_DISABLE_LOADSAVE_REGISTRY #endif /** * GST_EXPORT: * * Export the given variable from the built shared object. * * On Windows, this exports the variable from the DLL. * On other platforms, this gets defined to "extern". */ /** * GST_PLUGIN_EXPORT: * * Export the plugin's definition. * * On Windows, this exports the plugin definition from the DLL. * On other platforms, this gets defined as a no-op. */ #ifdef _MSC_VER #define GST_PLUGIN_EXPORT __declspec(dllexport) extern #ifdef GST_EXPORTS #define GST_EXPORT __declspec(dllexport) extern #else #define GST_EXPORT __declspec(dllimport) extern #endif #else /* not _MSC_VER */ #define GST_PLUGIN_EXPORT #define GST_EXPORT extern #endif #endif /* __GST_CONFIG_H__ */