97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/*
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* Copyright (C) 2003-2010 The Music Player Daemon Project
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* http://www.musicpd.org
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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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*
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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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*/
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#include "config.h"
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#include "tag_ape.h"
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#include "tag.h"
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#include "tag_table.h"
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#include "ape.h"
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static const char *const ape_tag_names[TAG_NUM_OF_ITEM_TYPES] = {
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[TAG_ALBUM_ARTIST] = "album artist",
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[TAG_DATE] = "year",
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};
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static enum tag_type
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tag_ape_name_parse(const char *name)
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{
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enum tag_type type = tag_table_lookup(ape_tag_names, name);
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if (type == TAG_NUM_OF_ITEM_TYPES)
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type = tag_name_parse_i(name);
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return type;
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}
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static struct tag *
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tag_ape_import_item(struct tag *tag, unsigned long flags,
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const char *key, const char *value, size_t value_length)
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{
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/* we only care about utf-8 text tags */
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if ((flags & (0x3 << 1)) != 0)
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return tag;
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enum tag_type type = tag_ape_name_parse(key);
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if (type == TAG_NUM_OF_ITEM_TYPES)
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return tag;
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if (tag == NULL)
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tag = tag_new();
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const char *end = value + value_length;
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while (true) {
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/* multiple values are separated by null bytes */
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const char *n = memchr(value, 0, end - value);
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if (n != NULL) {
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if (n > value)
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tag_add_item_n(tag, type, value, n - value);
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value = n + 1;
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} else {
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if (end > value)
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tag_add_item_n(tag, type, value, end - value);
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break;
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}
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}
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return tag;
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}
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struct tag_ape_ctx {
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struct tag *tag;
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};
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static bool
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tag_ape_callback(unsigned long flags, const char *key,
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const char *value, size_t value_length, void *_ctx)
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{
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struct tag_ape_ctx *ctx = _ctx;
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ctx->tag = tag_ape_import_item(ctx->tag, flags, key,
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value, value_length);
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return true;
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}
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struct tag *
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tag_ape_load(const char *file)
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{
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struct tag_ape_ctx ctx = { .tag = NULL };
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tag_ape_scan(file, tag_ape_callback, &ctx);
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return ctx.tag;
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}
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