2009-03-13 18:43:16 +01:00
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/*
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2013-07-28 20:25:45 +02:00
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* Copyright (C) 2003-2013 The Music Player Daemon Project
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2009-03-13 18:43:16 +01:00
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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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2009-11-12 09:12:38 +01:00
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#include "config.h"
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2013-07-28 20:25:45 +02:00
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#include "TagId3.hxx"
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2013-07-29 07:32:36 +02:00
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#include "TagHandler.hxx"
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2012-02-11 10:37:59 +01:00
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#include "tag_table.h"
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2008-08-29 09:38:27 +02:00
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#include "tag.h"
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2013-07-28 20:25:45 +02:00
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extern "C" {
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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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2013-07-28 20:25:45 +02:00
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}
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2008-08-29 09:38:27 +02:00
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#include "conf.h"
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2012-10-04 09:34:48 +02:00
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#include "io_error.h"
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2008-08-29 09:38:27 +02:00
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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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# 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_DISC
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# define ID3_FRAME_DISC "TPOS"
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# endif
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2009-07-09 14:28:08 +02:00
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#ifndef ID3_FRAME_ARTIST_SORT
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#define ID3_FRAME_ARTIST_SORT "TSOP"
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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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2009-07-09 14:28:08 +02:00
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#define ID3_FRAME_ALBUM_ARTIST_SORT "TSO2" /* this one is unofficial, introduced by Itunes */
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2009-01-14 22:38:55 +01:00
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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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2009-08-04 00:13:22 +02:00
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static inline bool
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tag_is_id3v1(struct id3_tag *tag)
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{
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return (id3_tag_options(tag, 0, 0) & ID3_TAG_OPTION_ID3V1) != 0;
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}
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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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2013-07-28 20:25:45 +02:00
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if (field == nullptr)
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return nullptr;
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2009-01-24 20:07:23 +01:00
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ucs4 = id3_field_getstring(field);
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2013-07-28 20:25:45 +02:00
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if (ucs4 == nullptr)
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return nullptr;
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2009-01-24 20:07:23 +01:00
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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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2009-08-04 00:13:22 +02:00
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static id3_utf8_t *
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2009-08-04 00:15:46 +02:00
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import_id3_string(bool is_id3v1, const id3_ucs4_t *ucs4)
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2008-08-29 09:38:27 +02:00
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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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/* use encoding field here? */
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if (is_id3v1 &&
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2013-07-28 20:25:45 +02:00
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(encoding = config_get_string(CONF_ID3V1_ENCODING, nullptr)) != nullptr) {
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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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2013-07-28 20:25:45 +02:00
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return nullptr;
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2008-10-15 19:29:46 +02:00
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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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2009-11-30 17:42:46 +01:00
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"utf-8", encoding,
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2013-07-28 20:25:45 +02:00
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nullptr, nullptr,
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nullptr, nullptr);
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if (utf8 == nullptr) {
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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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2013-07-28 20:25:45 +02:00
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return nullptr;
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2008-10-15 19:29:46 +02:00
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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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2013-07-28 20:25:45 +02:00
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return nullptr;
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2008-10-15 19:29:46 +02:00
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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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2009-08-04 00:15:43 +02:00
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/**
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* Import a "Text information frame" (ID3v2.4.0 section 4.2). It
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* contains 2 fields:
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*
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* - encoding
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* - string list
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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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2012-02-11 19:12:02 +01:00
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tag_id3_import_text_frame(struct id3_tag *tag, const struct id3_frame *frame,
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enum tag_type type,
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const struct tag_handler *handler, void *handler_ctx)
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2008-08-29 09:38:27 +02:00
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{
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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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2010-12-07 18:05:44 +01:00
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if (frame->nfields != 2)
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2009-01-24 20:02:59 +01:00
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return;
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2009-08-04 00:15:43 +02:00
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/* check the encoding field */
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field = id3_frame_field(frame, 0);
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2013-07-28 20:25:45 +02:00
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if (field == nullptr || field->type != ID3_FIELD_TYPE_TEXTENCODING)
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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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2009-08-04 00:15:43 +02:00
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/* process the value(s) */
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field = id3_frame_field(frame, 1);
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2013-07-28 20:25:45 +02:00
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if (field == nullptr || field->type != ID3_FIELD_TYPE_STRINGLIST)
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2009-08-04 00:15:43 +02:00
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return;
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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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2013-07-28 20:25:45 +02:00
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if (ucs4 == nullptr)
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2009-08-04 00:15:43 +02:00
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continue;
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2009-10-13 16:12:45 +02:00
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if (type == TAG_GENRE)
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2009-08-04 00:15:46 +02:00
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ucs4 = id3_genre_name(ucs4);
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utf8 = import_id3_string(tag_is_id3v1(tag), ucs4);
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2013-07-28 20:25:45 +02:00
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if (utf8 == nullptr)
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2009-08-04 00:15:43 +02:00
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continue;
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2012-02-11 19:12:02 +01:00
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tag_handler_invoke_tag(handler, handler_ctx,
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type, (const char *)utf8);
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2009-08-04 00:15:43 +02:00
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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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2009-08-04 00:15:43 +02:00
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}
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2010-12-07 18:05:44 +01:00
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/**
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* Import all text frames with the specified id (ID3v2.4.0 section
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* 4.2). This is a wrapper for tag_id3_import_text_frame().
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*/
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static void
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2012-02-11 19:12:02 +01:00
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tag_id3_import_text(struct id3_tag *tag, const char *id, enum tag_type type,
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const struct tag_handler *handler, void *handler_ctx)
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2010-12-07 18:05:44 +01:00
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{
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const struct id3_frame *frame;
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for (unsigned i = 0;
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2013-07-28 20:25:45 +02:00
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(frame = id3_tag_findframe(tag, id, i)) != nullptr; ++i)
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2012-02-11 19:12:02 +01:00
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tag_id3_import_text_frame(tag, frame, type,
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handler, handler_ctx);
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2010-12-07 18:05:44 +01:00
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}
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2009-08-04 00:15:43 +02:00
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/**
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* Import a "Comment frame" (ID3v2.4.0 section 4.10). It
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* contains 4 fields:
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*
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* - encoding
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* - language
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* - string
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* - full string (we use this one)
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*/
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static void
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2012-02-11 19:12:02 +01:00
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tag_id3_import_comment_frame(struct id3_tag *tag,
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const struct id3_frame *frame, enum tag_type type,
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const struct tag_handler *handler,
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void *handler_ctx)
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2009-08-04 00:15:43 +02:00
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{
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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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2010-12-07 18:05:44 +01:00
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if (frame->nfields != 4)
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2009-08-04 00:15:43 +02:00
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return;
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/* for now I only read the 4th field, with the fullstring */
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field = id3_frame_field(frame, 3);
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2013-07-28 20:25:45 +02:00
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if (field == nullptr)
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2009-08-04 00:15:43 +02:00
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return;
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ucs4 = id3_field_getfullstring(field);
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2013-07-28 20:25:45 +02:00
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if (ucs4 == nullptr)
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2009-08-04 00:15:43 +02:00
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return;
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2009-08-04 00:15:46 +02:00
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utf8 = import_id3_string(tag_is_id3v1(tag), ucs4);
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2013-07-28 20:25:45 +02:00
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if (utf8 == nullptr)
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2009-08-04 00:15:43 +02:00
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return;
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2012-02-11 19:12:02 +01:00
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tag_handler_invoke_tag(handler, handler_ctx, type, (const char *)utf8);
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2009-08-04 00:15:43 +02:00
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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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2010-12-07 18:05:44 +01:00
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/**
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* Import all comment frames (ID3v2.4.0 section 4.10). This is a
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* wrapper for tag_id3_import_comment_frame().
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*/
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static void
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2012-02-11 19:12:02 +01:00
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tag_id3_import_comment(struct id3_tag *tag, const char *id, enum tag_type type,
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const struct tag_handler *handler, void *handler_ctx)
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2010-12-07 18:05:44 +01:00
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{
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const struct id3_frame *frame;
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for (unsigned i = 0;
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2013-07-28 20:25:45 +02:00
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(frame = id3_tag_findframe(tag, id, i)) != nullptr; ++i)
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2012-02-11 19:12:02 +01:00
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tag_id3_import_comment_frame(tag, frame, type,
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handler, handler_ctx);
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2010-12-07 18:05:44 +01:00
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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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2012-02-11 10:37:59 +01:00
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static const struct tag_table txxx_tags[] = {
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{ "ALBUMARTISTSORT", TAG_ALBUM_ARTIST_SORT },
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{ "MusicBrainz Artist Id", TAG_MUSICBRAINZ_ARTISTID },
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{ "MusicBrainz Album Id", TAG_MUSICBRAINZ_ALBUMID },
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{ "MusicBrainz Album Artist Id",
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TAG_MUSICBRAINZ_ALBUMARTISTID },
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{ "MusicBrainz Track Id", TAG_MUSICBRAINZ_TRACKID },
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2013-07-28 20:25:45 +02:00
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{ nullptr, TAG_NUM_OF_ITEM_TYPES }
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2009-01-24 20:07:23 +01:00
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};
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2012-02-11 10:37:59 +01:00
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return tag_table_lookup(txxx_tags, name);
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2009-01-24 20:07:23 +01:00
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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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2012-02-11 19:12:02 +01:00
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tag_id3_import_musicbrainz(struct id3_tag *id3_tag,
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const struct tag_handler *handler,
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void *handler_ctx)
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2009-01-24 20:07:23 +01:00
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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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2013-07-28 20:25:45 +02:00
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if (frame == nullptr)
|
2009-01-24 20:07:23 +01:00
|
|
|
break;
|
|
|
|
|
|
|
|
name = tag_id3_getstring(frame, 1);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (name == nullptr)
|
2009-01-24 20:07:23 +01:00
|
|
|
continue;
|
|
|
|
|
|
|
|
value = tag_id3_getstring(frame, 2);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (value == nullptr)
|
2009-01-24 20:07:23 +01:00
|
|
|
continue;
|
|
|
|
|
2012-02-11 19:24:51 +01:00
|
|
|
tag_handler_invoke_pair(handler, handler_ctx,
|
|
|
|
(const char *)name,
|
|
|
|
(const char *)value);
|
|
|
|
|
|
|
|
type = tag_id3_parse_txxx_name((const char*)name);
|
|
|
|
free(name);
|
|
|
|
|
|
|
|
if (type != TAG_NUM_OF_ITEM_TYPES)
|
|
|
|
tag_handler_invoke_tag(handler, handler_ctx,
|
|
|
|
type, (const char*)value);
|
|
|
|
|
2009-01-24 20:07:23 +01:00
|
|
|
free(value);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-05-06 14:42:07 +02:00
|
|
|
/**
|
|
|
|
* Imports the MusicBrainz TrackId from the UFID tag.
|
|
|
|
*/
|
|
|
|
static void
|
2012-02-11 19:12:02 +01:00
|
|
|
tag_id3_import_ufid(struct id3_tag *id3_tag,
|
|
|
|
const struct tag_handler *handler, void *handler_ctx)
|
2009-05-06 14:42:07 +02:00
|
|
|
{
|
|
|
|
for (unsigned i = 0;; ++i) {
|
|
|
|
const struct id3_frame *frame;
|
|
|
|
union id3_field *field;
|
|
|
|
const id3_latin1_t *name;
|
|
|
|
const id3_byte_t *value;
|
|
|
|
id3_length_t length;
|
|
|
|
|
|
|
|
frame = id3_tag_findframe(id3_tag, "UFID", i);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (frame == nullptr)
|
2009-05-06 14:42:07 +02:00
|
|
|
break;
|
|
|
|
|
|
|
|
field = id3_frame_field(frame, 0);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (field == nullptr)
|
2009-05-06 14:42:07 +02:00
|
|
|
continue;
|
|
|
|
|
|
|
|
name = id3_field_getlatin1(field);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (name == nullptr ||
|
2009-05-06 14:42:07 +02:00
|
|
|
strcmp((const char *)name, "http://musicbrainz.org") != 0)
|
|
|
|
continue;
|
|
|
|
|
|
|
|
field = id3_frame_field(frame, 1);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (field == nullptr)
|
2009-05-06 14:42:07 +02:00
|
|
|
continue;
|
|
|
|
|
|
|
|
value = id3_field_getbinarydata(field, &length);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (value == nullptr || length == 0)
|
2009-05-06 14:42:07 +02:00
|
|
|
continue;
|
|
|
|
|
2012-02-11 19:12:02 +01:00
|
|
|
char *p = g_strndup((const char *)value, length);
|
|
|
|
tag_handler_invoke_tag(handler, handler_ctx,
|
|
|
|
TAG_MUSICBRAINZ_TRACKID, p);
|
|
|
|
g_free(p);
|
2009-05-06 14:42:07 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-10-27 11:42:34 +02:00
|
|
|
void
|
2012-02-11 19:12:02 +01:00
|
|
|
scan_id3_tag(struct id3_tag *tag,
|
|
|
|
const struct tag_handler *handler, void *handler_ctx)
|
|
|
|
{
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_ARTIST, TAG_ARTIST,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_ALBUM_ARTIST,
|
|
|
|
TAG_ALBUM_ARTIST, handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_ARTIST_SORT,
|
|
|
|
TAG_ARTIST_SORT, handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_ALBUM_ARTIST_SORT,
|
|
|
|
TAG_ALBUM_ARTIST_SORT, handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_TITLE, TAG_TITLE,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_ALBUM, TAG_ALBUM,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_TRACK, TAG_TRACK,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_YEAR, TAG_DATE,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_GENRE, TAG_GENRE,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_COMPOSER, TAG_COMPOSER,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, "TPE3", TAG_PERFORMER,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, "TPE4", TAG_PERFORMER, handler, handler_ctx);
|
|
|
|
tag_id3_import_comment(tag, ID3_FRAME_COMMENT, TAG_COMMENT,
|
|
|
|
handler, handler_ctx);
|
|
|
|
tag_id3_import_text(tag, ID3_FRAME_DISC, TAG_DISC,
|
|
|
|
handler, handler_ctx);
|
|
|
|
|
|
|
|
tag_id3_import_musicbrainz(tag, handler, handler_ctx);
|
|
|
|
tag_id3_import_ufid(tag, handler, handler_ctx);
|
|
|
|
}
|
|
|
|
|
2008-08-29 09:38:27 +02:00
|
|
|
struct tag *tag_id3_import(struct id3_tag * tag)
|
|
|
|
{
|
2009-01-24 20:02:59 +01:00
|
|
|
struct tag *ret = tag_new();
|
|
|
|
|
2012-02-11 19:12:02 +01:00
|
|
|
scan_id3_tag(tag, &add_tag_handler, ret);
|
2009-01-24 20:07:23 +01:00
|
|
|
|
2009-01-24 20:02:59 +01:00
|
|
|
if (tag_is_empty(ret)) {
|
|
|
|
tag_free(ret);
|
2013-07-28 20:25:45 +02:00
|
|
|
ret = nullptr;
|
2009-01-24 20:02:59 +01:00
|
|
|
}
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
static int
|
|
|
|
fill_buffer(void *buf, size_t size, FILE *stream, long offset, int whence)
|
2008-08-29 09:38:27 +02:00
|
|
|
{
|
|
|
|
if (fseek(stream, offset, whence) != 0) return 0;
|
|
|
|
return fread(buf, 1, size, stream);
|
|
|
|
}
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
static int
|
|
|
|
get_id3v2_footer_size(FILE *stream, long offset, int whence)
|
2008-08-29 09:38:27 +02:00
|
|
|
{
|
|
|
|
id3_byte_t buf[ID3_TAG_QUERYSIZE];
|
|
|
|
int bufsize;
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
bufsize = fill_buffer(buf, ID3_TAG_QUERYSIZE, stream, offset, whence);
|
2008-08-29 09:38:27 +02:00
|
|
|
if (bufsize <= 0) return 0;
|
|
|
|
return id3_tag_query(buf, bufsize);
|
|
|
|
}
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
static struct id3_tag *
|
|
|
|
tag_id3_read(FILE *stream, long offset, int whence)
|
2008-08-29 09:38:27 +02:00
|
|
|
{
|
|
|
|
struct id3_tag *tag;
|
2009-08-04 00:13:22 +02:00
|
|
|
id3_byte_t query_buffer[ID3_TAG_QUERYSIZE];
|
|
|
|
int tag_size;
|
|
|
|
int query_buffer_size;
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
/* It's ok if we get less than we asked for */
|
2009-08-04 00:13:22 +02:00
|
|
|
query_buffer_size = fill_buffer(query_buffer, ID3_TAG_QUERYSIZE,
|
|
|
|
stream, offset, whence);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (query_buffer_size <= 0)
|
|
|
|
return nullptr;
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
/* Look for a tag header */
|
2009-08-04 00:13:22 +02:00
|
|
|
tag_size = id3_tag_query(query_buffer, query_buffer_size);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (tag_size <= 0) return nullptr;
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
/* Found a tag. Allocate a buffer and read it in. */
|
2013-07-28 20:25:45 +02:00
|
|
|
id3_byte_t *tag_buffer = (id3_byte_t *)g_malloc(tag_size);
|
|
|
|
if (!tag_buffer)
|
|
|
|
return nullptr;
|
2008-08-29 09:38:27 +02:00
|
|
|
|
2013-07-28 20:25:45 +02:00
|
|
|
int tag_buffer_size = fill_buffer(tag_buffer, tag_size,
|
|
|
|
stream, offset, whence);
|
2009-08-04 00:13:22 +02:00
|
|
|
if (tag_buffer_size < tag_size) {
|
|
|
|
g_free(tag_buffer);
|
2013-07-28 20:25:45 +02:00
|
|
|
return nullptr;
|
2008-08-29 09:38:27 +02:00
|
|
|
}
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
tag = id3_tag_parse(tag_buffer, tag_buffer_size);
|
2008-08-29 09:38:27 +02:00
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
g_free(tag_buffer);
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
static struct id3_tag *
|
|
|
|
tag_id3_find_from_beginning(FILE *stream)
|
2008-08-29 09:38:27 +02:00
|
|
|
{
|
|
|
|
struct id3_tag *tag;
|
|
|
|
struct id3_tag *seektag;
|
|
|
|
struct id3_frame *frame;
|
|
|
|
int seek;
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
tag = tag_id3_read(stream, 0, SEEK_SET);
|
2008-08-29 09:38:27 +02:00
|
|
|
if (!tag) {
|
2013-07-28 20:25:45 +02:00
|
|
|
return nullptr;
|
2009-08-04 00:13:22 +02:00
|
|
|
} else if (tag_is_id3v1(tag)) {
|
2008-08-29 09:38:27 +02:00
|
|
|
/* id3v1 tags don't belong here */
|
|
|
|
id3_tag_delete(tag);
|
2013-07-28 20:25:45 +02:00
|
|
|
return nullptr;
|
2008-08-29 09:38:27 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* 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 */
|
2009-08-04 00:13:22 +02:00
|
|
|
seektag = tag_id3_read(stream, seek, SEEK_CUR);
|
|
|
|
if (!seektag || tag_is_id3v1(seektag))
|
2008-08-29 09:38:27 +02:00
|
|
|
break;
|
|
|
|
|
|
|
|
/* Replace the old tag with the new one */
|
|
|
|
id3_tag_delete(tag);
|
|
|
|
tag = seektag;
|
|
|
|
}
|
|
|
|
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
2009-08-04 00:13:22 +02:00
|
|
|
static struct id3_tag *
|
|
|
|
tag_id3_find_from_end(FILE *stream)
|
2008-08-29 09:38:27 +02:00
|
|
|
{
|
|
|
|
struct id3_tag *tag;
|
|
|
|
struct id3_tag *v1tag;
|
|
|
|
int tagsize;
|
|
|
|
|
|
|
|
/* Get an id3v1 tag from the end of file for later use */
|
2009-08-04 00:13:22 +02:00
|
|
|
v1tag = tag_id3_read(stream, -128, SEEK_END);
|
2008-08-29 09:38:27 +02:00
|
|
|
|
|
|
|
/* Get the id3v2 tag size from the footer (located before v1tag) */
|
2009-08-04 00:13:22 +02:00
|
|
|
tagsize = get_id3v2_footer_size(stream, (v1tag ? -128 : 0) - 10, SEEK_END);
|
2008-08-29 09:38:27 +02:00
|
|
|
if (tagsize >= 0)
|
|
|
|
return v1tag;
|
|
|
|
|
|
|
|
/* Get the tag which the footer belongs to */
|
2009-08-04 00:13:22 +02:00
|
|
|
tag = tag_id3_read(stream, tagsize, SEEK_CUR);
|
2008-08-29 09:38:27 +02:00
|
|
|
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
|
|
|
{
|
2013-07-28 20:25:45 +02:00
|
|
|
size_t 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)
|
2013-07-28 20:25:45 +02:00
|
|
|
return nullptr;
|
2009-03-02 18:00:46 +01:00
|
|
|
|
2009-11-15 18:44:53 +01:00
|
|
|
if (size > 4 * 1024 * 1024)
|
2009-03-02 18:00:46 +01:00
|
|
|
/* too large, don't allocate so much memory */
|
2013-07-28 20:25:45 +02:00
|
|
|
return nullptr;
|
2009-03-02 18:00:46 +01:00
|
|
|
|
2013-07-28 20:25:45 +02:00
|
|
|
id3_byte_t *buffer = (id3_byte_t *)g_malloc(size);
|
|
|
|
size_t ret = fread(buffer, size, 1, file);
|
2009-03-02 18:00:46 +01:00
|
|
|
if (ret != 1) {
|
|
|
|
g_warning("Failed to read RIFF chunk");
|
|
|
|
g_free(buffer);
|
2013-07-28 20:25:45 +02:00
|
|
|
return nullptr;
|
2009-03-02 18:00:46 +01:00
|
|
|
}
|
|
|
|
|
2013-07-28 20:25:45 +02:00
|
|
|
struct id3_tag *tag = id3_tag_parse(buffer, size);
|
2009-03-02 18:00:46 +01:00
|
|
|
g_free(buffer);
|
|
|
|
return tag;
|
|
|
|
}
|
|
|
|
|
2012-04-23 22:51:45 +02:00
|
|
|
struct id3_tag *
|
|
|
|
tag_id3_load(const char *path_fs, GError **error_r)
|
2012-02-11 19:12:02 +01:00
|
|
|
{
|
2012-04-23 22:51:45 +02:00
|
|
|
FILE *file = fopen(path_fs, "rb");
|
2013-07-28 20:25:45 +02:00
|
|
|
if (file == nullptr) {
|
2012-10-04 09:34:48 +02:00
|
|
|
g_set_error(error_r, errno_quark(), errno,
|
2012-04-23 22:51:45 +02:00
|
|
|
"Failed to open file %s: %s",
|
|
|
|
path_fs, g_strerror(errno));
|
2013-07-28 20:25:45 +02:00
|
|
|
return nullptr;
|
2012-04-23 22:51:45 +02:00
|
|
|
}
|
2012-02-11 19:12:02 +01:00
|
|
|
|
2012-04-23 22:51:45 +02:00
|
|
|
struct id3_tag *tag = tag_id3_find_from_beginning(file);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (tag == nullptr) {
|
2012-04-23 22:51:45 +02:00
|
|
|
tag = tag_id3_riff_aiff_load(file);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (tag == nullptr)
|
2012-04-23 22:51:45 +02:00
|
|
|
tag = tag_id3_find_from_end(file);
|
2012-02-11 19:12:02 +01:00
|
|
|
}
|
|
|
|
|
2012-04-23 22:51:45 +02:00
|
|
|
fclose(file);
|
|
|
|
return tag;
|
|
|
|
}
|
2012-02-11 19:12:02 +01:00
|
|
|
|
2012-04-23 22:51:45 +02:00
|
|
|
bool
|
|
|
|
tag_id3_scan(const char *path_fs,
|
|
|
|
const struct tag_handler *handler, void *handler_ctx)
|
|
|
|
{
|
2013-07-28 20:25:45 +02:00
|
|
|
GError *error = nullptr;
|
2012-04-23 22:51:45 +02:00
|
|
|
struct id3_tag *tag = tag_id3_load(path_fs, &error);
|
2013-07-28 20:25:45 +02:00
|
|
|
if (tag == nullptr) {
|
|
|
|
if (error != nullptr) {
|
2012-04-23 22:51:45 +02:00
|
|
|
g_warning("%s", error->message);
|
|
|
|
g_error_free(error);
|
|
|
|
}
|
2012-02-11 19:12:02 +01:00
|
|
|
|
|
|
|
return false;
|
2012-04-23 22:51:45 +02:00
|
|
|
}
|
2012-02-11 19:12:02 +01:00
|
|
|
|
|
|
|
scan_id3_tag(tag, handler, handler_ctx);
|
|
|
|
id3_tag_delete(tag);
|
|
|
|
return true;
|
|
|
|
}
|