gstreamer/subprojects/gst-plugins-base/gst-libs/gst/pbutils/pbutils.c

107 lines
3.2 KiB
C

/* GStreamer base utils library
* Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
*
* 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.
*/
/**
* SECTION:gstpbutils
* @title: Pbutils
* @short_description: General Application and Plugin Utility Library
*
* libgstpbutils is a general utility library for plugins and applications.
* It currently provides the
* following:
*
* * human-readable description strings of codecs, elements, sources, decoders,
* encoders, or sinks from decoder/encoder caps, element names, or protocol
* names.
*
* * support for applications to initiate installation of missing plugins (if
* this is supported by the distribution or operating system used)
*
* * API for GStreamer elements to create missing-plugin messages in order to
* communicate to the application that a certain type of plugin is missing
* (decoder, encoder, URI protocol source, URI protocol sink, named element)
*
* * API for applications to recognise and handle missing-plugin messages
*
* ## Linking to this library
*
* You should obtain the required CFLAGS and LIBS using pkg-config on the
* gstreamer-plugins-base-1.0 module. You will then also need to add
* '-lgstreamer-pbutils-1.0' manually to your LIBS line.
*
* ## Library initialisation
*
* Before using any of its functions, applications and plugins must call
* gst_pb_utils_init() to initialise the library.
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "pbutils.h"
#include "pbutils-private.h"
#include "gst/gst-i18n-plugin.h"
static gpointer
_init_locale_text_domain (gpointer data)
{
#ifdef ENABLE_NLS
GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
LOCALEDIR);
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
#endif
return NULL;
}
void
gst_pb_utils_init_locale_text_domain (void)
{
static GOnce locale_init_once = G_ONCE_INIT;
g_once (&locale_init_once, _init_locale_text_domain, NULL);
}
/**
* gst_pb_utils_init:
*
* Initialises the base utils support library. This function is not
* thread-safe. Applications should call it after calling gst_init(),
* plugins should call it from their plugin_init function.
*
* This function may be called multiple times. It will do nothing if the
* library has already been initialised.
*/
void
gst_pb_utils_init (void)
{
static gboolean inited; /* FALSE */
if (inited) {
GST_LOG ("already initialised");
return;
}
gst_pb_utils_init_locale_text_domain ();
inited = TRUE;
}