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/* GStreamer
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* gstid3tag.c: plugin for reading / modifying id3 tags
*
* 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:gsttagid3
* @title: ID3 tag utils
* @short_description: tag mappings and support functions for plugins
* dealing with ID3v1 and ID3v2 tags
* @see_also: #GstTagList
*
* Contains various utility functions for plugins to parse or create
* ID3 tags and map ID3v2 identifiers to and from GStreamer identifiers.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gsttageditingprivate.h"
#include <stdlib.h>
#include <string.h>
#include "id3v2.h"
#ifndef GST_DISABLE_GST_DEBUG
#define GST_CAT_DEFAULT id3v2_ensure_debug_category()
#endif
static const gchar genres[] =
"Blues\000Classic Rock\000Country\000Dance\000Disco\000Funk\000Grunge\000"
"Hip-Hop\000Jazz\000Metal\000New Age\000Oldies\000Other\000Pop\000R&B\000"
"Rap\000Reggae\000Rock\000Techno\000Industrial\000Alternative\000Ska\000"
"Death Metal\000Pranks\000Soundtrack\000Euro-Techno\000Ambient\000Trip-Hop"
"\000Vocal\000Jazz+Funk\000Fusion\000Trance\000Classical\000Instrumental\000"
"Acid\000House\000Game\000Sound Clip\000Gospel\000Noise\000Alternative Rock"
"\000Bass\000Soul\000Punk\000Space\000Meditative\000Instrumental Pop\000"
"Instrumental Rock\000Ethnic\000Gothic\000Darkwave\000Techno-Industrial\000"
"Electronic\000Pop-Folk\000Eurodance\000Dream\000Southern Rock\000Comedy"
"\000Cult\000Gangsta\000Top 40\000Christian Rap\000Pop/Funk\000Jungle\000"
"Native American\000Cabaret\000New Wave\000Psychedelic\000Rave\000Showtunes"
"\000Trailer\000Lo-Fi\000Tribal\000Acid Punk\000Acid Jazz\000Polka\000"
"Retro\000Musical\000Rock & Roll\000Hard Rock\000Folk\000Folk/Rock\000"
"National Folk\000Swing\000Bebob\000Latin\000Revival\000Celtic\000Bluegrass"
"\000Avantgarde\000Gothic Rock\000Progressive Rock\000Psychedelic Rock\000"
"Symphonic Rock\000Slow Rock\000Big Band\000Chorus\000Easy Listening\000"
"Acoustic\000Humour\000Speech\000Chanson\000Opera\000Chamber Music\000"
"Sonata\000Symphony\000Booty Bass\000Primus\000Porn Groove\000Satire\000"
"Slow Jam\000Club\000Tango\000Samba\000Folklore\000Ballad\000Power Ballad\000"
"Rhythmic Soul\000Freestyle\000Duet\000Punk Rock\000Drum Solo\000A Capella"
"\000Euro-House\000Dance Hall\000Goa\000Drum & Bass\000Club-House\000"
"Hardcore\000Terror\000Indie\000BritPop\000Negerpunk\000Polsk Punk\000"
"Beat\000Christian Gangsta Rap\000Heavy Metal\000Black Metal\000"
"Crossover\000Contemporary Christian\000Christian Rock\000Merengue\000"
"Salsa\000Thrash Metal\000Anime\000Jpop\000Synthpop";
static const guint16 genres_idx[] = {
0, 6, 19, 27, 33, 39, 44, 51, 59, 64, 70, 78, 85, 91, 95, 99, 103, 110, 115,
122, 133, 145, 149, 161, 168, 179, 191, 199, 208, 214, 224, 231, 238, 248,
261, 266, 272, 277, 288, 295, 301, 318, 323, 328, 333, 339, 350, 367, 385,
392, 399, 408, 426, 437, 446, 456, 462, 476, 483, 488, 496, 503, 517, 526,
533, 549, 557, 566, 578, 583, 593, 601, 607, 614, 624, 634, 640, 646, 654,
666, 676, 681, 691, 705, 224, 711, 717, 723, 731, 738, 748, 759, 771, 788,
805, 820, 830, 839, 846, 861, 870, 877, 884, 892, 898, 912, 919, 928, 939,
946, 958, 965, 974, 979, 985, 991, 1000, 1007, 1020, 1034, 1044, 1049,
1059, 1069, 1079, 1090, 1101, 1105, 1117, 1128, 1137, 1144, 1150, 1158,
1168, 1179, 1184, 1206, 1218, 1230, 1240, 1263, 1278, 1287, 1293, 1306,
1312, 1317
};
static const GstTagEntryMatch tag_matches[] = {
{GST_TAG_TITLE, "TIT2"},
{GST_TAG_ALBUM, "TALB"},
{GST_TAG_TRACK_NUMBER, "TRCK"},
{GST_TAG_ARTIST, "TPE1"},
{GST_TAG_ALBUM_ARTIST, "TPE2"},
{GST_TAG_COMPOSER, "TCOM"},
{GST_TAG_CONDUCTOR, "TPE3"},
{GST_TAG_COPYRIGHT, "TCOP"},
{GST_TAG_COPYRIGHT_URI, "WCOP"},
{GST_TAG_ENCODED_BY, "TENC"},
{GST_TAG_GENRE, "TCON"},
{GST_TAG_DATE_TIME, "TDRC"},
{GST_TAG_COMMENT, "COMM"},
{GST_TAG_ALBUM_VOLUME_NUMBER, "TPOS"},
{GST_TAG_DURATION, "TLEN"},
{GST_TAG_ISRC, "TSRC"},
{GST_TAG_IMAGE, "APIC"},
{GST_TAG_ENCODER, "TSSE"},
{GST_TAG_BEATS_PER_MINUTE, "TBPM"},
{GST_TAG_ARTIST_SORTNAME, "TSOP"},
{GST_TAG_ALBUM_SORTNAME, "TSOA"},
{GST_TAG_TITLE_SORTNAME, "TSOT"},
{GST_TAG_PUBLISHER, "TPUB"},
{GST_TAG_INTERPRETED_BY, "TPE4"},
{GST_TAG_MUSICAL_KEY, "TKEY"},
{GST_TAG_PRIVATE_DATA, "PRIV"},
{NULL, NULL}
};
/**
* gst_tag_from_id3_tag:
* @id3_tag: ID3v2 tag to convert to GStreamer tag
*
* Looks up the GStreamer tag for a ID3v2 tag.
*
* Returns: The corresponding GStreamer tag or NULL if none exists.
*/
const gchar *
gst_tag_from_id3_tag (const gchar * id3_tag)
{
int i = 0;
g_return_val_if_fail (id3_tag != NULL, NULL);
while (tag_matches[i].gstreamer_tag != NULL) {
if (strncmp (id3_tag, tag_matches[i].original_tag, 5) == 0) {
return tag_matches[i].gstreamer_tag;
}
i++;
}
GST_FIXME ("Cannot map ID3v2 tag '%c%c%c%c' to GStreamer tag",
id3_tag[0], id3_tag[1], id3_tag[2], id3_tag[3]);
return NULL;
}
static const GstTagEntryMatch user_tag_matches[] = {
/* musicbrainz identifiers being used in the real world (foobar2000) */
{GST_TAG_MUSICBRAINZ_ARTISTID, "TXXX|musicbrainz_artistid"},
{GST_TAG_MUSICBRAINZ_ALBUMID, "TXXX|musicbrainz_albumid"},
{GST_TAG_MUSICBRAINZ_ALBUMARTISTID, "TXXX|musicbrainz_albumartistid"},
{GST_TAG_MUSICBRAINZ_TRMID, "TXXX|musicbrainz_trmid"},
{GST_TAG_CDDA_MUSICBRAINZ_DISCID, "TXXX|musicbrainz_discid"},
/* musicbrainz identifiers according to spec no one pays
* attention to (http://musicbrainz.org/docs/specs/metadata_tags.html) */
{GST_TAG_MUSICBRAINZ_ARTISTID, "TXXX|MusicBrainz Artist Id"},
{GST_TAG_MUSICBRAINZ_ALBUMID, "TXXX|MusicBrainz Album Id"},
{GST_TAG_MUSICBRAINZ_ALBUMARTISTID, "TXXX|MusicBrainz Album Artist Id"},
{GST_TAG_MUSICBRAINZ_TRMID, "TXXX|MusicBrainz TRM Id"},
/* according to: http://wiki.musicbrainz.org/MusicBrainzTag (yes, no space
* before 'ID' and not 'Id' either this time, yay for consistency) */
{GST_TAG_CDDA_MUSICBRAINZ_DISCID, "TXXX|MusicBrainz DiscID"},
/* foobar2000 uses these identifiers to store gain/peak information in
* ID3v2 tags <= v2.3.0. In v2.4.0 there's the RVA2 frame for that */
{GST_TAG_TRACK_GAIN, "TXXX|replaygain_track_gain"},
{GST_TAG_TRACK_PEAK, "TXXX|replaygain_track_peak"},
{GST_TAG_ALBUM_GAIN, "TXXX|replaygain_album_gain"},
{GST_TAG_ALBUM_PEAK, "TXXX|replaygain_album_peak"},
/* the following two are more or less made up, there seems to be little
* evidence that any popular application is actually putting this info
* into TXXX frames; the first one comes from a musicbrainz wiki 'proposed
* tags' page, the second one is analogue to the vorbis/ape/flac tag. */
{GST_TAG_CDDA_CDDB_DISCID, "TXXX|discid"},
{GST_TAG_CDDA_CDDB_DISCID, "TXXX|CDDB DiscID"}
};
/**
* gst_tag_from_id3_user_tag:
* @type: the type of ID3v2 user tag (e.g. "TXXX" or "UDIF")
* @id3_user_tag: ID3v2 user tag to convert to GStreamer tag
*
* Looks up the GStreamer tag for an ID3v2 user tag (e.g. description in
* TXXX frame or owner in UFID frame).
*
* Returns: The corresponding GStreamer tag or NULL if none exists.
*/
const gchar *
gst_tag_from_id3_user_tag (const gchar * type, const gchar * id3_user_tag)
{
int i = 0;
g_return_val_if_fail (type != NULL && strlen (type) == 4, NULL);
g_return_val_if_fail (id3_user_tag != NULL, NULL);
for (i = 0; i < G_N_ELEMENTS (user_tag_matches); ++i) {
if (strncmp (type, user_tag_matches[i].original_tag, 4) == 0 &&
g_ascii_strcasecmp (id3_user_tag,
user_tag_matches[i].original_tag + 5) == 0) {
GST_LOG ("Mapped ID3v2 user tag '%s' to GStreamer tag '%s'",
user_tag_matches[i].original_tag, user_tag_matches[i].gstreamer_tag);
return user_tag_matches[i].gstreamer_tag;
}
}
GST_FIXME ("Cannot map ID3v2 user tag '%s' of type '%s' to GStreamer tag",
id3_user_tag, type);
return NULL;
}
/**
* gst_tag_to_id3_tag:
* @gst_tag: GStreamer tag to convert to vorbiscomment tag
*
* Looks up the ID3v2 tag for a GStreamer tag.
*
* Returns: The corresponding ID3v2 tag or NULL if none exists.
*/
const gchar *
gst_tag_to_id3_tag (const gchar * gst_tag)
{
int i = 0;
g_return_val_if_fail (gst_tag != NULL, NULL);
while (tag_matches[i].gstreamer_tag != NULL) {
if (strcmp (gst_tag, tag_matches[i].gstreamer_tag) == 0) {
return tag_matches[i].original_tag;
}
i++;
}
return NULL;
}
static void
gst_tag_extract_id3v1_string (GstTagList * list, const gchar * tag,
const gchar * start, const guint size)
{
const gchar *env_vars[] = { "GST_ID3V1_TAG_ENCODING",
"GST_ID3_TAG_ENCODING", "GST_TAG_ENCODING", NULL
};
gchar *utf8;
utf8 = gst_tag_freeform_string_to_utf8 (start, size, env_vars);
if (utf8 && *utf8 != '\0') {
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, tag, utf8, NULL);
}
g_free (utf8);
}
/**
* gst_tag_list_new_from_id3v1:
* @data: (array fixed-size=128): 128 bytes of data containing the ID3v1 tag
*
* Parses the data containing an ID3v1 tag and returns a #GstTagList from the
* parsed data.
*
* Returns: A new tag list or NULL if the data was not an ID3v1 tag.
*/
GstTagList *
gst_tag_list_new_from_id3v1 (const guint8 * data)
{
guint year;
gchar *ystr;
GstTagList *list;
g_return_val_if_fail (data != NULL, NULL);
if (data[0] != 'T' || data[1] != 'A' || data[2] != 'G')
return NULL;
list = gst_tag_list_new_empty ();
gst_tag_extract_id3v1_string (list, GST_TAG_TITLE, (gchar *) & data[3], 30);
gst_tag_extract_id3v1_string (list, GST_TAG_ARTIST, (gchar *) & data[33], 30);
gst_tag_extract_id3v1_string (list, GST_TAG_ALBUM, (gchar *) & data[63], 30);
ystr = g_strndup ((gchar *) & data[93], 4);
year = strtoul (ystr, NULL, 10);
g_free (ystr);
if (year > 0) {
GstDateTime *dt = gst_date_time_new_y (year);
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, GST_TAG_DATE_TIME, dt, NULL);
gst_date_time_unref (dt);
}
if (data[125] == 0 && data[126] != 0) {
gst_tag_extract_id3v1_string (list, GST_TAG_COMMENT, (gchar *) & data[97],
28);
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, GST_TAG_TRACK_NUMBER,
(guint) data[126], NULL);
} else {
gst_tag_extract_id3v1_string (list, GST_TAG_COMMENT, (gchar *) & data[97],
30);
}
if (data[127] < gst_tag_id3_genre_count () && !gst_tag_list_is_empty (list)) {
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, GST_TAG_GENRE,
gst_tag_id3_genre_get (data[127]), NULL);
}
return list;
}
/**
* gst_tag_id3_genre_count:
*
* Gets the number of ID3v1 genres that can be identified. Winamp genres are
* included.
*
* Returns: the number of ID3v1 genres that can be identified
*/
guint
gst_tag_id3_genre_count (void)
{
return G_N_ELEMENTS (genres_idx);
}
/**
* gst_tag_id3_genre_get:
* @id: ID of genre to query
*
* Gets the ID3v1 genre name for a given ID.
*
* Returns: the genre or NULL if no genre is associated with that ID.
*/
const gchar *
gst_tag_id3_genre_get (const guint id)
{
guint idx;
if (id >= G_N_ELEMENTS (genres_idx))
return NULL;
idx = genres_idx[id];
g_assert (idx < sizeof (genres));
return &genres[idx];
}
/**
* gst_tag_list_add_id3_image:
* @tag_list: a tag list
* @image_data: (array length=image_data_len): the (encoded) image
* @image_data_len: the length of the encoded image data at @image_data
* @id3_picture_type: picture type as per the ID3 (v2.4.0) specification for
* the APIC frame (0 = unknown/other)
*
* Adds an image from an ID3 APIC frame (or similar, such as used in FLAC)
* to the given tag list. Also see gst_tag_image_data_to_image_sample() for
* more information on image tags in GStreamer.
*
* Returns: %TRUE if the image was processed, otherwise %FALSE
*/
gboolean
gst_tag_list_add_id3_image (GstTagList * tag_list, const guint8 * image_data,
guint image_data_len, guint id3_picture_type)
{
GstTagImageType tag_image_type;
const gchar *tag_name;
GstSample *image;
g_return_val_if_fail (GST_IS_TAG_LIST (tag_list), FALSE);
g_return_val_if_fail (image_data != NULL, FALSE);
g_return_val_if_fail (image_data_len > 0, FALSE);
if (id3_picture_type == 0x01 || id3_picture_type == 0x02) {
/* file icon for preview. Don't add image-type to caps, since there
* is only supposed to be one of these, and the type is already indicated
* via the special tag */
tag_name = GST_TAG_PREVIEW_IMAGE;
tag_image_type = GST_TAG_IMAGE_TYPE_NONE;
} else {
tag_name = GST_TAG_IMAGE;
/* Remap the ID3v2 APIC type our ImageType enum */
if (id3_picture_type >= 0x3 && id3_picture_type <= 0x14)
tag_image_type = (GstTagImageType) (id3_picture_type - 2);
else
tag_image_type = GST_TAG_IMAGE_TYPE_UNDEFINED;
}
image = gst_tag_image_data_to_image_sample (image_data, image_data_len,
tag_image_type);
if (image == NULL)
return FALSE;
gst_tag_list_add (tag_list, GST_TAG_MERGE_APPEND, tag_name, image, NULL);
gst_sample_unref (image);
return TRUE;
}