2009-03-13 18:43:16 +01:00
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/*
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* Copyright (C) 2003-2009 The Music Player Daemon Project
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* http://www.musicpd.org
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2008-08-29 09:38:27 +02:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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2009-03-13 18:43:16 +01:00
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2008-08-29 09:38:27 +02:00
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*/
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#include "tag_id3.h"
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#include "tag.h"
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2009-03-02 18:00:46 +01:00
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#include "riff.h"
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2009-03-02 18:12:44 +01:00
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#include "aiff.h"
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2008-08-29 09:38:27 +02:00
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#include "conf.h"
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2008-10-15 19:36:30 +02:00
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#include <glib.h>
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2008-08-29 09:38:27 +02:00
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#include <id3tag.h>
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2009-01-03 14:51:41 +01:00
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#include <stdio.h>
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2009-01-24 20:07:23 +01:00
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#include <stdlib.h>
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2009-01-03 14:51:41 +01:00
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#include <errno.h>
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#include <string.h>
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2008-12-29 17:29:10 +01:00
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#undef G_LOG_DOMAIN
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#define G_LOG_DOMAIN "id3"
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2008-08-29 09:38:27 +02:00
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# define isId3v1(tag) (id3_tag_options(tag, 0, 0) & ID3_TAG_OPTION_ID3V1)
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# ifndef ID3_FRAME_COMPOSER
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# define ID3_FRAME_COMPOSER "TCOM"
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# endif
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# ifndef ID3_FRAME_PERFORMER
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# define ID3_FRAME_PERFORMER "TOPE"
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# endif
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# ifndef ID3_FRAME_DISC
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# define ID3_FRAME_DISC "TPOS"
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# endif
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2009-01-14 22:38:55 +01:00
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#ifndef ID3_FRAME_ALBUM_ARTIST_SORT
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#define ID3_FRAME_ALBUM_ARTIST_SORT "TSO2"
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#endif
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#ifndef ID3_FRAME_ALBUM_ARTIST
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#define ID3_FRAME_ALBUM_ARTIST "TPE2"
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#endif
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2009-01-24 20:07:23 +01:00
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static id3_utf8_t *
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tag_id3_getstring(const struct id3_frame *frame, unsigned i)
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{
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union id3_field *field;
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const id3_ucs4_t *ucs4;
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field = id3_frame_field(frame, i);
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if (field == NULL)
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return NULL;
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ucs4 = id3_field_getstring(field);
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if (ucs4 == NULL)
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return NULL;
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return id3_ucs4_utf8duplicate(ucs4);
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}
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2008-08-29 09:38:27 +02:00
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/* This will try to convert a string to utf-8,
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*/
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static id3_utf8_t * processID3FieldString (int is_id3v1, const id3_ucs4_t *ucs4, int type)
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{
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2008-12-29 16:37:41 +01:00
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id3_utf8_t *utf8, *utf8_stripped;
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2008-10-15 19:29:46 +02:00
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id3_latin1_t *isostr;
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2009-01-17 20:23:58 +01:00
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const char *encoding;
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2008-08-29 09:38:27 +02:00
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2008-10-15 19:29:46 +02:00
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if (type == TAG_ITEM_GENRE)
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ucs4 = id3_genre_name(ucs4);
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/* use encoding field here? */
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if (is_id3v1 &&
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2009-01-17 20:23:58 +01:00
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(encoding = config_get_string(CONF_ID3V1_ENCODING, NULL)) != NULL) {
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2008-10-15 19:29:46 +02:00
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isostr = id3_ucs4_latin1duplicate(ucs4);
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2008-12-02 02:22:43 +01:00
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if (G_UNLIKELY(!isostr)) {
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2008-10-15 19:29:46 +02:00
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return NULL;
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}
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2008-10-15 19:36:30 +02:00
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utf8 = (id3_utf8_t *)
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g_convert_with_fallback((const char*)isostr, -1,
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encoding, "utf-8",
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2009-01-04 19:50:22 +01:00
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NULL, NULL, NULL, NULL);
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2008-10-15 19:36:30 +02:00
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if (utf8 == NULL) {
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2008-12-29 17:29:10 +01:00
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g_debug("Unable to convert %s string to UTF-8: '%s'",
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encoding, isostr);
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2009-01-03 14:51:41 +01:00
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g_free(isostr);
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2008-10-15 19:29:46 +02:00
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return NULL;
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}
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2009-01-03 14:51:41 +01:00
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g_free(isostr);
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2008-10-15 19:29:46 +02:00
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} else {
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utf8 = id3_ucs4_utf8duplicate(ucs4);
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2008-12-02 02:22:43 +01:00
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if (G_UNLIKELY(!utf8)) {
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2008-10-15 19:29:46 +02:00
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return NULL;
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}
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}
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2008-12-29 16:37:41 +01:00
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utf8_stripped = (id3_utf8_t *)g_strdup(g_strstrip((gchar *)utf8));
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2009-01-03 14:51:41 +01:00
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g_free(utf8);
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2008-12-29 16:37:41 +01:00
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return utf8_stripped;
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2008-08-29 09:38:27 +02:00
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}
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2009-01-24 20:02:59 +01:00
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static void
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getID3Info(struct id3_tag *tag, const char *id, int type, struct tag *mpdTag)
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2008-08-29 09:38:27 +02:00
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{
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struct id3_frame const *frame;
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id3_ucs4_t const *ucs4;
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id3_utf8_t *utf8;
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union id3_field const *field;
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unsigned int nstrings, i;
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frame = id3_tag_findframe(tag, id, 0);
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/* Check frame */
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if (!frame)
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{
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2009-01-24 20:02:59 +01:00
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return;
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2008-08-29 09:38:27 +02:00
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}
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/* Check fields in frame */
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if(frame->nfields == 0)
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{
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2008-12-29 17:29:10 +01:00
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g_debug("Frame has no fields");
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2009-01-24 20:02:59 +01:00
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return;
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2008-08-29 09:38:27 +02:00
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}
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/* Starting with T is a stringlist */
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if (id[0] == 'T')
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{
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/* This one contains 2 fields:
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* 1st: Text encoding
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* 2: Stringlist
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* Shamefully this isn't the RL case.
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* But I am going to enforce it anyway.
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*/
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if(frame->nfields != 2)
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{
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2008-12-29 17:29:10 +01:00
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g_debug("Invalid number '%i' of fields for TXX frame",
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frame->nfields);
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2009-01-24 20:02:59 +01:00
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return;
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2008-08-29 09:38:27 +02:00
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}
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field = &frame->fields[0];
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/**
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* First field is encoding field.
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* This is ignored by mpd.
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*/
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if(field->type != ID3_FIELD_TYPE_TEXTENCODING)
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{
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2008-12-29 17:29:10 +01:00
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g_debug("Expected encoding, found: %i",
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field->type);
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2008-08-29 09:38:27 +02:00
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}
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/* Process remaining fields, should be only one */
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field = &frame->fields[1];
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/* Encoding field */
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if(field->type == ID3_FIELD_TYPE_STRINGLIST) {
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/* Get the number of strings available */
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nstrings = id3_field_getnstrings(field);
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for (i = 0; i < nstrings; i++) {
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ucs4 = id3_field_getstrings(field,i);
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if(!ucs4)
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continue;
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utf8 = processID3FieldString(isId3v1(tag),ucs4, type);
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if(!utf8)
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continue;
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tag_add_item(mpdTag, type, (char *)utf8);
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2009-01-03 14:51:41 +01:00
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g_free(utf8);
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2008-08-29 09:38:27 +02:00
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}
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}
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else {
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2008-12-29 17:29:10 +01:00
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g_warning("Field type not processed: %i",
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(int)id3_field_gettextencoding(field));
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2008-08-29 09:38:27 +02:00
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}
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}
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/* A comment frame */
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else if(!strcmp(ID3_FRAME_COMMENT, id))
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{
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/* A comment frame is different... */
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/* 1st: encoding
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* 2nd: Language
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* 3rd: String
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* 4th: FullString.
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* The 'value' we want is in the 4th field
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*/
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if(frame->nfields == 4)
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{
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/* for now I only read the 4th field, with the fullstring */
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field = &frame->fields[3];
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if(field->type == ID3_FIELD_TYPE_STRINGFULL)
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{
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ucs4 = id3_field_getfullstring(field);
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if(ucs4)
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{
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utf8 = processID3FieldString(isId3v1(tag),ucs4, type);
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if(utf8)
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{
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tag_add_item(mpdTag, type, (char *)utf8);
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2009-01-03 14:51:41 +01:00
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g_free(utf8);
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2008-08-29 09:38:27 +02:00
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}
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}
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}
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else
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{
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2008-12-29 17:29:10 +01:00
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g_debug("4th field in comment frame differs from expected, got '%i': ignoring",
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field->type);
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2008-08-29 09:38:27 +02:00
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}
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}
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else
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{
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2008-12-29 17:29:10 +01:00
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g_debug("Invalid 'comments' tag, got '%i' fields instead of 4",
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frame->nfields);
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2008-08-29 09:38:27 +02:00
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}
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}
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/* Unsupported */
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2009-01-24 20:02:59 +01:00
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else
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2008-12-29 17:29:10 +01:00
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g_debug("Unsupported tag type requrested");
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2008-08-29 09:38:27 +02:00
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}
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2009-01-24 20:07:23 +01:00
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/**
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* Parse a TXXX name, and convert it to a tag_type enum value.
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* Returns TAG_NUM_OF_ITEM_TYPES if the TXXX name is not understood.
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*/
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static enum tag_type
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tag_id3_parse_txxx_name(const char *name)
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{
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static const struct {
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enum tag_type type;
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const char *name;
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} musicbrainz_txxx[] = {
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2009-07-07 07:36:25 +02:00
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{ TAG_ALBUM_ARTIST_SORT, "ALBUMARTISTSORT" },
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2009-01-24 20:07:23 +01:00
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{ TAG_MUSICBRAINZ_ARTISTID, "MusicBrainz Artist Id" },
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{ TAG_MUSICBRAINZ_ALBUMID, "MusicBrainz Album Id" },
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{ TAG_MUSICBRAINZ_ALBUMARTISTID,
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"MusicBrainz Album Artist Id" },
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{ TAG_MUSICBRAINZ_TRACKID, "MusicBrainz Track Id" },
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};
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for (unsigned i = 0; i < G_N_ELEMENTS(musicbrainz_txxx); ++i)
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if (strcmp(name, musicbrainz_txxx[i].name) == 0)
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return musicbrainz_txxx[i].type;
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return TAG_NUM_OF_ITEM_TYPES;
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}
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/**
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* Import all known MusicBrainz tags from TXXX frames.
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*/
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static void
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tag_id3_import_musicbrainz(struct tag *mpd_tag, struct id3_tag *id3_tag)
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{
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for (unsigned i = 0;; ++i) {
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const struct id3_frame *frame;
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id3_utf8_t *name, *value;
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enum tag_type type;
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frame = id3_tag_findframe(id3_tag, "TXXX", i);
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if (frame == NULL)
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break;
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name = tag_id3_getstring(frame, 1);
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if (name == NULL)
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continue;
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type = tag_id3_parse_txxx_name((const char*)name);
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free(name);
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if (type == TAG_NUM_OF_ITEM_TYPES)
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continue;
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value = tag_id3_getstring(frame, 2);
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if (value == NULL)
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continue;
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tag_add_item(mpd_tag, type, (const char*)value);
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free(value);
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}
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}
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2009-05-06 14:42:07 +02:00
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/**
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* Imports the MusicBrainz TrackId from the UFID tag.
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*/
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static void
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tag_id3_import_ufid(struct tag *mpd_tag, struct id3_tag *id3_tag)
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{
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for (unsigned i = 0;; ++i) {
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const struct id3_frame *frame;
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union id3_field *field;
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const id3_latin1_t *name;
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const id3_byte_t *value;
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id3_length_t length;
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frame = id3_tag_findframe(id3_tag, "UFID", i);
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if (frame == NULL)
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break;
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field = id3_frame_field(frame, 0);
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if (field == NULL)
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continue;
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name = id3_field_getlatin1(field);
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if (name == NULL ||
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strcmp((const char *)name, "http://musicbrainz.org") != 0)
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continue;
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field = id3_frame_field(frame, 1);
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if (field == NULL)
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continue;
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value = id3_field_getbinarydata(field, &length);
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if (value == NULL || length == 0)
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continue;
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tag_add_item_n(mpd_tag, TAG_MUSICBRAINZ_TRACKID,
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(const char*)value, length);
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}
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}
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2008-08-29 09:38:27 +02:00
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struct tag *tag_id3_import(struct id3_tag * tag)
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|
{
|
2009-01-24 20:02:59 +01:00
|
|
|
struct tag *ret = tag_new();
|
|
|
|
|
|
|
|
getID3Info(tag, ID3_FRAME_ARTIST, TAG_ITEM_ARTIST, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_ALBUM_ARTIST,
|
|
|
|
TAG_ITEM_ALBUM_ARTIST, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_ALBUM_ARTIST_SORT,
|
2009-07-07 07:36:25 +02:00
|
|
|
TAG_ALBUM_ARTIST_SORT, ret);
|
2009-01-24 20:02:59 +01:00
|
|
|
getID3Info(tag, ID3_FRAME_TITLE, TAG_ITEM_TITLE, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_ALBUM, TAG_ITEM_ALBUM, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_TRACK, TAG_ITEM_TRACK, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_YEAR, TAG_ITEM_DATE, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_GENRE, TAG_ITEM_GENRE, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_COMPOSER, TAG_ITEM_COMPOSER, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_PERFORMER, TAG_ITEM_PERFORMER, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_COMMENT, TAG_ITEM_COMMENT, ret);
|
|
|
|
getID3Info(tag, ID3_FRAME_DISC, TAG_ITEM_DISC, ret);
|
|
|
|
|
2009-01-24 20:07:23 +01:00
|
|
|
tag_id3_import_musicbrainz(ret, tag);
|
2009-05-06 14:42:07 +02:00
|
|
|
tag_id3_import_ufid(ret, tag);
|
2009-01-24 20:07:23 +01:00
|
|
|
|
2009-01-24 20:02:59 +01:00
|
|
|
if (tag_is_empty(ret)) {
|
|
|
|
tag_free(ret);
|
|
|
|
ret = NULL;
|
|
|
|
}
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int fillBuffer(void *buf, size_t size, FILE * stream,
|
|
|
|
long offset, int whence)
|
|
|
|
{
|
|
|
|
if (fseek(stream, offset, whence) != 0) return 0;
|
|
|
|
return fread(buf, 1, size, stream);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int getId3v2FooterSize(FILE * stream, long offset, int whence)
|
|
|
|
{
|
|
|
|
id3_byte_t buf[ID3_TAG_QUERYSIZE];
|
|
|
|
int bufsize;
|
|
|
|
|
|
|
|
bufsize = fillBuffer(buf, ID3_TAG_QUERYSIZE, stream, offset, whence);
|
|
|
|
if (bufsize <= 0) return 0;
|
|
|
|
return id3_tag_query(buf, bufsize);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct id3_tag *getId3Tag(FILE * stream, long offset, int whence)
|
|
|
|
{
|
|
|
|
struct id3_tag *tag;
|
|
|
|
id3_byte_t queryBuf[ID3_TAG_QUERYSIZE];
|
|
|
|
id3_byte_t *tagBuf;
|
|
|
|
int tagSize;
|
|
|
|
int queryBufSize;
|
|
|
|
int tagBufSize;
|
|
|
|
|
|
|
|
/* It's ok if we get less than we asked for */
|
|
|
|
queryBufSize = fillBuffer(queryBuf, ID3_TAG_QUERYSIZE,
|
|
|
|
stream, offset, whence);
|
|
|
|
if (queryBufSize <= 0) return NULL;
|
|
|
|
|
|
|
|
/* Look for a tag header */
|
|
|
|
tagSize = id3_tag_query(queryBuf, queryBufSize);
|
|
|
|
if (tagSize <= 0) return NULL;
|
|
|
|
|
|
|
|
/* Found a tag. Allocate a buffer and read it in. */
|
2009-01-03 14:51:41 +01:00
|
|
|
tagBuf = g_malloc(tagSize);
|
2008-08-29 09:38:27 +02:00
|
|
|
if (!tagBuf) return NULL;
|
|
|
|
|
|
|
|
tagBufSize = fillBuffer(tagBuf, tagSize, stream, offset, whence);
|
|
|
|
if (tagBufSize < tagSize) {
|
2009-01-03 14:51:41 +01:00
|
|
|
g_free(tagBuf);
|
2008-08-29 09:38:27 +02:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
tag = id3_tag_parse(tagBuf, tagBufSize);
|
|
|
|
|
2009-01-03 14:51:41 +01:00
|
|
|
g_free(tagBuf);
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct id3_tag *findId3TagFromBeginning(FILE * stream)
|
|
|
|
{
|
|
|
|
struct id3_tag *tag;
|
|
|
|
struct id3_tag *seektag;
|
|
|
|
struct id3_frame *frame;
|
|
|
|
int seek;
|
|
|
|
|
|
|
|
tag = getId3Tag(stream, 0, SEEK_SET);
|
|
|
|
if (!tag) {
|
|
|
|
return NULL;
|
|
|
|
} else if (isId3v1(tag)) {
|
|
|
|
/* id3v1 tags don't belong here */
|
|
|
|
id3_tag_delete(tag);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* We have an id3v2 tag, so let's look for SEEK frames */
|
|
|
|
while ((frame = id3_tag_findframe(tag, "SEEK", 0))) {
|
|
|
|
/* Found a SEEK frame, get it's value */
|
|
|
|
seek = id3_field_getint(id3_frame_field(frame, 0));
|
|
|
|
if (seek < 0)
|
|
|
|
break;
|
|
|
|
|
|
|
|
/* Get the tag specified by the SEEK frame */
|
|
|
|
seektag = getId3Tag(stream, seek, SEEK_CUR);
|
|
|
|
if (!seektag || isId3v1(seektag))
|
|
|
|
break;
|
|
|
|
|
|
|
|
/* Replace the old tag with the new one */
|
|
|
|
id3_tag_delete(tag);
|
|
|
|
tag = seektag;
|
|
|
|
}
|
|
|
|
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct id3_tag *findId3TagFromEnd(FILE * stream)
|
|
|
|
{
|
|
|
|
struct id3_tag *tag;
|
|
|
|
struct id3_tag *v1tag;
|
|
|
|
int tagsize;
|
|
|
|
|
|
|
|
/* Get an id3v1 tag from the end of file for later use */
|
|
|
|
v1tag = getId3Tag(stream, -128, SEEK_END);
|
|
|
|
|
|
|
|
/* Get the id3v2 tag size from the footer (located before v1tag) */
|
|
|
|
tagsize = getId3v2FooterSize(stream, (v1tag ? -128 : 0) - 10, SEEK_END);
|
|
|
|
if (tagsize >= 0)
|
|
|
|
return v1tag;
|
|
|
|
|
|
|
|
/* Get the tag which the footer belongs to */
|
|
|
|
tag = getId3Tag(stream, tagsize, SEEK_CUR);
|
|
|
|
if (!tag)
|
|
|
|
return v1tag;
|
|
|
|
|
|
|
|
/* We have an id3v2 tag, so ditch v1tag */
|
|
|
|
id3_tag_delete(v1tag);
|
|
|
|
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
2009-03-02 18:00:46 +01:00
|
|
|
static struct id3_tag *
|
2009-03-02 18:12:44 +01:00
|
|
|
tag_id3_riff_aiff_load(FILE *file)
|
2009-03-02 18:00:46 +01:00
|
|
|
{
|
|
|
|
size_t size;
|
|
|
|
void *buffer;
|
|
|
|
size_t ret;
|
|
|
|
struct id3_tag *tag;
|
|
|
|
|
|
|
|
size = riff_seek_id3(file);
|
2009-03-02 18:12:44 +01:00
|
|
|
if (size == 0)
|
|
|
|
size = aiff_seek_id3(file);
|
2009-03-02 18:00:46 +01:00
|
|
|
if (size == 0)
|
|
|
|
return NULL;
|
|
|
|
|
2009-03-02 18:12:44 +01:00
|
|
|
if (size > 256 * 1024)
|
2009-03-02 18:00:46 +01:00
|
|
|
/* too large, don't allocate so much memory */
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
buffer = g_malloc(size);
|
|
|
|
ret = fread(buffer, size, 1, file);
|
|
|
|
if (ret != 1) {
|
|
|
|
g_warning("Failed to read RIFF chunk");
|
|
|
|
g_free(buffer);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
tag = id3_tag_parse(buffer, size);
|
|
|
|
g_free(buffer);
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
2008-08-29 14:48:39 +02:00
|
|
|
struct tag *tag_id3_load(const char *file)
|
2008-08-29 09:38:27 +02:00
|
|
|
{
|
2008-10-17 21:13:23 +02:00
|
|
|
struct tag *ret;
|
2008-08-29 09:38:27 +02:00
|
|
|
struct id3_tag *tag;
|
|
|
|
FILE *stream;
|
|
|
|
|
|
|
|
stream = fopen(file, "r");
|
|
|
|
if (!stream) {
|
2008-12-29 17:29:10 +01:00
|
|
|
g_debug("tag_id3_load: Failed to open file: '%s', %s",
|
|
|
|
file, strerror(errno));
|
2008-08-29 09:38:27 +02:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
tag = findId3TagFromBeginning(stream);
|
2009-03-02 18:00:46 +01:00
|
|
|
if (tag == NULL)
|
2009-03-02 18:12:44 +01:00
|
|
|
tag = tag_id3_riff_aiff_load(stream);
|
2008-08-29 09:38:27 +02:00
|
|
|
if (!tag)
|
|
|
|
tag = findId3TagFromEnd(stream);
|
|
|
|
|
|
|
|
fclose(stream);
|
|
|
|
|
|
|
|
if (!tag)
|
|
|
|
return NULL;
|
|
|
|
ret = tag_id3_import(tag);
|
|
|
|
id3_tag_delete(tag);
|
|
|
|
return ret;
|
|
|
|
}
|