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dynamic type: add convenience macros to register

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This macros will help to register a dynamic type
apart from a given plugin such as in a static build
of gstreamer where libgstreamer-full is generated.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/661>
This commit is contained in:
Stéphane Cerveau 2020-12-01 12:46:19 +01:00
parent 9fd20cf1a0
commit a41f37d94c
1 changed files with 49 additions and 0 deletions
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49
gst/gstdynamictypefactory.h
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@ -22,6 +22,55 @@
#ifndef __GST_DYNAMIC_TYPE_FACTORY_H__
#define __GST_DYNAMIC_TYPE_FACTORY_H__
/**
* GST_DYNAMIC_TYPE_REGISTER_DEFINE:
*
* @t_n: The dynamic type name in lower case, with words separated by '_'.
* Used to generate `gst_dynamic_type_register_*(GstPlugin* plugin)`.
* @t: The #GType of the dynamic type
* A convenience macro to define the entry point of a
* dynamic type `gst_dynamic_type_register_*(GstPlugin* plugin)`.
*
* Since: 1.20
*/
#define GST_DYNAMIC_TYPE_REGISTER_DEFINE(t_n, t) \
G_BEGIN_DECLS \
gboolean G_PASTE (gst_dynamic_type_register_, t_n) (GstPlugin * plugin) \
{ \
return gst_dynamic_type_register (plugin, t); \
} \
G_END_DECLS
/**
* GST_DYNAMIC_TYPE_REGISTER_DECLARE:
* @t_f: The dynamic type name in lower case, with words separated by '_'.
*
* This macro can be used to declare a new dynamic type.
* It has to be used in combination with #GST_DYNAMIC_TYPE_REGISTER_DEFINE macro
* and must be placed outside any block to declare the type find registration
* function.
*
* Since: 1.20
*/
#define GST_DYNAMIC_TYPE_REGISTER_DECLARE(t_n) \
G_BEGIN_DECLS \
gboolean G_PASTE(gst_dynamic_type_register_, t_n) (GstPlugin * plugin); \
G_END_DECLS
/**
* GST_DYNAMIC_TYPE_REGISTER:
* @t_n: The dynamic type name to register
* @plugin: The #GstPlugin where to register the dynamic type.
*
* This macro can be used to register a dynamic type into a #GstPlugin.
* This method will be usually called in the plugin init function
* but can also be called with a NULL plugin.
*
* Since: 1.20
*/
#define GST_DYNAMIC_TYPE_REGISTER(t_n, plugin) G_PASTE(gst_dynamic_type_register_, t_n) (plugin)
/**
* GstDynamicTypeFactory:
*