tag.h 7.94 KB
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/* GStreamer
 * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
 *
 * 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.
 */


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#ifndef __GST_TAG_TAG_H__
#define __GST_TAG_TAG_H__
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#include <gst/gst.h>

G_BEGIN_DECLS
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/* Tag names */

/**
 * GST_TAG_MUSICBRAINZ_TRACKID
 *
 * MusicBrainz track ID
 */
#define GST_TAG_MUSICBRAINZ_TRACKID	"musicbrainz-trackid"
/**
 * GST_TAG_MUSICBRAINZ_ARTISTID
 *
 * MusicBrainz artist ID
 */
#define GST_TAG_MUSICBRAINZ_ARTISTID	"musicbrainz-artistid"
/**
 * GST_TAG_MUSICBRAINZ_ALBUMID
 *
 * MusicBrainz album ID
 */
#define GST_TAG_MUSICBRAINZ_ALBUMID	"musicbrainz-albumid"
/**
 * GST_TAG_MUSICBRAINZ_ALBUMARTISTID
 *
 * MusicBrainz album artist ID
 */
#define GST_TAG_MUSICBRAINZ_ALBUMARTISTID	"musicbrainz-albumartistid"
/**
 * GST_TAG_MUSICBRAINZ_TRMID
 *
 * MusicBrainz track TRM ID
 */
#define GST_TAG_MUSICBRAINZ_TRMID	"musicbrainz-trmid"
/**
 * GST_TAG_MUSICBRAINZ_SORTNAME
 *
 * MusicBrainz artist sort name
 */
#define GST_TAG_MUSICBRAINZ_SORTNAME	"musicbrainz-sortname"
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/**
 * GST_TAG_CMML_STREAM
 *
 * Annodex CMML stream element tag
 */
#define GST_TAG_CMML_STREAM "cmml-stream"
/**
 * GST_TAG_CMML_HEAD
 *
 * Annodex CMML head element tag
 */

#define GST_TAG_CMML_HEAD "cmml-head"
/**
 * GST_TAG_CMML_CLIP
 *
 * Annodex CMML clip element tag
 */
#define GST_TAG_CMML_CLIP "cmml-clip"
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/* CDDA tags */

/**
 * GST_TAG_CDDA_CDDB_DISCID:
 *
 * CDDB disc id in its short form (e.g. 'aa063d0f')
 */
#define GST_TAG_CDDA_CDDB_DISCID              "discid"

/**
 * GST_TAG_CDDA_CDDB_DISCID_FULL:
 *
 * CDDB disc id including all details
 */
#define GST_TAG_CDDA_CDDB_DISCID_FULL         "discid-full"

/**
 * GST_TAG_CDDA_MUSICBRAINZ_DISCID:
 *
 * Musicbrainz disc id (e.g. 'ahg7JUcfR3vCYBphSDIogOOWrr0-')
 */
#define GST_TAG_CDDA_MUSICBRAINZ_DISCID       "musicbrainz-discid"

/**
 * GST_TAG_CDDA_MUSICBRAINZ_DISCID_FULL:
 *
 * Musicbrainz disc id details
 */
#define GST_TAG_CDDA_MUSICBRAINZ_DISCID_FULL  "musicbrainz-discid-full"


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/* additional information for image tags */

/**
 * GstTagImageType:
 * @GST_TAG_IMAGE_TYPE_UNDEFINED             : Undefined/other image type
 * @GST_TAG_IMAGE_TYPE_FRONT_COVER           : Cover (front)
 * @GST_TAG_IMAGE_TYPE_BACK_COVER            : Cover (back)
 * @GST_TAG_IMAGE_TYPE_LEAFLET_PAGE          : Leaflet page
 * @GST_TAG_IMAGE_TYPE_MEDIUM                : Medium (e.g. label side of CD)
 * @GST_TAG_IMAGE_TYPE_LEAD_ARTIST           : Lead artist/lead performer/soloist
 * @GST_TAG_IMAGE_TYPE_ARTIST                : Artist/performer
 * @GST_TAG_IMAGE_TYPE_CONDUCTOR             : Conductor
 * @GST_TAG_IMAGE_TYPE_BAND_ORCHESTRA        : Band/orchestra
 * @GST_TAG_IMAGE_TYPE_COMPOSER              : Composer
 * @GST_TAG_IMAGE_TYPE_LYRICIST              : Lyricist/text writer
 * @GST_TAG_IMAGE_TYPE_RECORDING_LOCATION    : Recording location
 * @GST_TAG_IMAGE_TYPE_DURING_RECORDING      : During recording
 * @GST_TAG_IMAGE_TYPE_DURING_PERFORMANCE    : During performance
 * @GST_TAG_IMAGE_TYPE_VIDEO_CAPTURE         : Movie/video screen capture
 * @GST_TAG_IMAGE_TYPE_FISH                  : A fish as funny as the ID3v2 spec
 * @GST_TAG_IMAGE_TYPE_ILLUSTRATION          : Illustration
 * @GST_TAG_IMAGE_TYPE_BAND_ARTIST_LOGO      : Band/artist logotype
 * @GST_TAG_IMAGE_TYPE_PUBLISHER_STUDIO_LOGO : Publisher/studio logotype
 *
 * Type of image contained in an image tag (specified as field in
 * the image buffer's caps structure)
 *
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 * Since: 0.10.9
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 */
typedef enum {
  GST_TAG_IMAGE_TYPE_UNDEFINED,
  GST_TAG_IMAGE_TYPE_FRONT_COVER,
  GST_TAG_IMAGE_TYPE_BACK_COVER,
  GST_TAG_IMAGE_TYPE_LEAFLET_PAGE,
  GST_TAG_IMAGE_TYPE_MEDIUM,
  GST_TAG_IMAGE_TYPE_LEAD_ARTIST,
  GST_TAG_IMAGE_TYPE_ARTIST,
  GST_TAG_IMAGE_TYPE_CONDUCTOR,
  GST_TAG_IMAGE_TYPE_BAND_ORCHESTRA,
  GST_TAG_IMAGE_TYPE_COMPOSER,
  GST_TAG_IMAGE_TYPE_LYRICIST,
  GST_TAG_IMAGE_TYPE_RECORDING_LOCATION,
  GST_TAG_IMAGE_TYPE_DURING_RECORDING,
  GST_TAG_IMAGE_TYPE_DURING_PERFORMANCE,
  GST_TAG_IMAGE_TYPE_VIDEO_CAPTURE,
  GST_TAG_IMAGE_TYPE_FISH,
  GST_TAG_IMAGE_TYPE_ILLUSTRATION,
  GST_TAG_IMAGE_TYPE_BAND_ARTIST_LOGO,
  GST_TAG_IMAGE_TYPE_PUBLISHER_STUDIO_LOGO
} GstTagImageType;

#define GST_TYPE_TAG_IMAGE_TYPE  (gst_tag_image_type_get_type ())
GType   gst_tag_image_type_get_type (void);


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/* functions for vorbis comment manipulation */

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G_CONST_RETURN gchar *  gst_tag_from_vorbis_tag                 (const gchar *          vorbis_tag);
G_CONST_RETURN gchar *  gst_tag_to_vorbis_tag                   (const gchar *          gst_tag);
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void                    gst_vorbis_tag_add                      (GstTagList *           list, 
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                                                                 const gchar *          tag, 
                                                                 const gchar *          value);
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GList *                 gst_tag_to_vorbis_comments              (const GstTagList *     list, 
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                                                                 const gchar *          tag);
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/* functions to convert GstBuffers with vorbiscomment contents to GstTagLists and back */
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GstTagList *            gst_tag_list_from_vorbiscomment_buffer  (const GstBuffer *      buffer,
                                                                 const guint8 *         id_data,
                                                                 const guint            id_data_length,
                                                                 gchar **               vendor_string);
GstBuffer *             gst_tag_list_to_vorbiscomment_buffer    (const GstTagList *     list,
                                                                 const guint8 *         id_data,
                                                                 const guint            id_data_length,
                                                                 const gchar *          vendor_string);
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/* functions for ID3 tag manipulation */

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guint                   gst_tag_id3_genre_count                 (void);
G_CONST_RETURN gchar *  gst_tag_id3_genre_get                   (const guint            id);
GstTagList *            gst_tag_list_new_from_id3v1             (const guint8 *         data);
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G_CONST_RETURN gchar *  gst_tag_from_id3_tag                    (const gchar *          id3_tag);
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G_CONST_RETURN gchar *  gst_tag_from_id3_user_tag               (const gchar *          type,
                                                                 const gchar *          id3_user_tag);
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G_CONST_RETURN gchar *  gst_tag_to_id3_tag                      (const gchar *          gst_tag);
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/* other tag-related functions */

gboolean                gst_tag_parse_extended_comment (const gchar  * ext_comment,
                                                        gchar       ** key,
                                                        gchar       ** lang,
                                                        gchar       ** value,
                                                        gboolean       fail_if_no_key);

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gchar                 * gst_tag_freeform_string_to_utf8 (const gchar  * data,
                                                         gint           size,
                                                         const gchar ** env_vars);

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/* FIXME 0.11: replace with a more general gst_tag_library_init() */
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void                    gst_tag_register_musicbrainz_tags (void);
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G_END_DECLS
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#endif /* __GST_TAG_TAG_H__ */