gstreamer/gst-libs/gst/tag/tags.c

/* GStreamer
 * Copyright (C) 2005 Ross Burton <ross@burtonini.com>
 *
 * tags.c: Non-core tag registration
 *
 * 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.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <gst/gst-i18n-plugin.h>
#include <gst/gst.h>
#include "tag.h"

/**
 * SECTION:gsttag
 * @short_description: additional tag definitions for plugins and applications
 * @see_also: #GstTagList
 * 
 * <refsect2>
 * <para>
 * Contains additional standardized GStreamer tag definitions for plugins
 * and applications, and functions to register them with the GStreamer
 * tag system.
 * </para>
 * </refsect2>
 */


static gpointer
gst_tag_register_musicbrainz_tags_internal (gpointer unused)
{
#ifdef ENABLE_NLS
  GST_DEBUG ("binding text domain %s to locale dir %s", GETTEXT_PACKAGE,
      LOCALEDIR);
  bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
#endif

  gst_tag_register (GST_TAG_MUSICBRAINZ_TRACKID, GST_TAG_FLAG_META,
      G_TYPE_STRING, _("track ID"), _("MusicBrainz track ID"), NULL);
  gst_tag_register (GST_TAG_MUSICBRAINZ_ARTISTID, GST_TAG_FLAG_META,
      G_TYPE_STRING, _("artist ID"), _("MusicBrainz artist ID"), NULL);
  gst_tag_register (GST_TAG_MUSICBRAINZ_ALBUMID, GST_TAG_FLAG_META,
      G_TYPE_STRING, _("album ID"), _("MusicBrainz album ID"), NULL);
  gst_tag_register (GST_TAG_MUSICBRAINZ_ALBUMARTISTID, GST_TAG_FLAG_META,
      G_TYPE_STRING,
      _("album artist ID"), _("MusicBrainz album artist ID"), NULL);
  gst_tag_register (GST_TAG_MUSICBRAINZ_TRMID, GST_TAG_FLAG_META,
      G_TYPE_STRING, _("track TRM ID"), _("MusicBrainz TRM ID"), NULL);
  gst_tag_register (GST_TAG_MUSICBRAINZ_SORTNAME, GST_TAG_FLAG_META,
      G_TYPE_STRING,
      _("artist sortname"), _("MusicBrainz artist sortname"), NULL);

  return NULL;
}

/**
 * gst_tag_register_musicbrainz_tags
 *
 * Registers additional musicbrainz-specific tags with the GStreamer tag
 * system. Plugins and applications that use these tags should call this
 * function before using them. Can be called multiple times.
 */
void
gst_tag_register_musicbrainz_tags (void)
{
  static GOnce mb_once = G_ONCE_INIT;

  g_once (&mb_once, gst_tag_register_musicbrainz_tags_internal, NULL);
}

static void
register_tag_image_type_enum (GType * id)
{
  static const GEnumValue image_types[] = {
    {GST_TAG_IMAGE_TYPE_UNDEFINED, "Undefined/other image type", "undefined"},
    {GST_TAG_IMAGE_TYPE_FRONT_COVER, "Cover (front)", "front-cover"},
    {GST_TAG_IMAGE_TYPE_BACK_COVER, "Cover (back)", "back-cover"},
    {GST_TAG_IMAGE_TYPE_LEAFLET_PAGE, "Leaflet page", "leaflet-page"},
    {GST_TAG_IMAGE_TYPE_MEDIUM, "Medium (e.g. label side of CD)", "medium"},
    {GST_TAG_IMAGE_TYPE_LEAD_ARTIST, "Lead artist/lead performer/soloist",
        "lead-artist"},
    {GST_TAG_IMAGE_TYPE_ARTIST, "Artist/performer", "artist"},
    {GST_TAG_IMAGE_TYPE_CONDUCTOR, "Conductor", "conductor"},
    {GST_TAG_IMAGE_TYPE_BAND_ORCHESTRA, "Band/orchestra", "band-orchestra"},
    {GST_TAG_IMAGE_TYPE_COMPOSER, "Composer", "composer"},
    {GST_TAG_IMAGE_TYPE_LYRICIST, "Lyricist/text writer", "lyricist"},
    {GST_TAG_IMAGE_TYPE_RECORDING_LOCATION, "Recording location",
        "recording-location"},
    {GST_TAG_IMAGE_TYPE_DURING_RECORDING, "During recording",
        "during-recording"},
    {GST_TAG_IMAGE_TYPE_DURING_PERFORMANCE, "During performance",
        "during-performance"},
    {GST_TAG_IMAGE_TYPE_VIDEO_CAPTURE, "Movie/video screen capture",
        "video-capture"},
    {GST_TAG_IMAGE_TYPE_FISH, "A fish as funny as the ID3v2 spec", "fish"},
    {GST_TAG_IMAGE_TYPE_ILLUSTRATION, "Illustration", "illustration"},
    {GST_TAG_IMAGE_TYPE_BAND_ARTIST_LOGO, "Band/artist logotype",
        "artist-logo"},
    {GST_TAG_IMAGE_TYPE_PUBLISHER_STUDIO_LOGO, "Publisher/studio logotype",
        "publisher-studio-logo"},
    {0, NULL, NULL}
  };

  *id = g_enum_register_static ("GstTagImageType", image_types);
}

GType
gst_tag_image_type_get_type (void)
{
  static GType id;
  static GOnce once = G_ONCE_INIT;

  g_once (&once, (GThreadFunc) register_tag_image_type_enum, &id);
  return id;
}