/* 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 <glib/gi18n-lib.h>

#ifndef GST_DISABLE_GST_DEBUG

#define GST_CAT_DEFAULT gst_pb_utils_ensure_debug_category()

static GstDebugCategory *

gst_pb_utils_ensure_debug_category (void)

{

  static gsize cat_gonce = 0;

  if (g_once_init_enter (&cat_gonce)) {

    GstDebugCategory *cat = NULL;

    GST_DEBUG_CATEGORY_INIT (cat, "pbutils", 0, "GStreamer Plugins Base utils");

    g_once_init_leave (&cat_gonce, (gsize) cat);

  }

  return (GstDebugCategory *) cat_gonce;

}

#endif /* GST_DISABLE_GST_DEBUG */

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;

}