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/*
* Copyright (C) 2003-2013 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "ApeTag.hxx"
#include "ApeLoader.hxx"
#include "Tag.hxx"
#include "TagTable.hxx"
#include "TagHandler.hxx"
#include <glib.h>
#include <string.h>
const struct tag_table ape_tags[] = {
{ "album artist", TAG_ALBUM_ARTIST },
{ "year", TAG_DATE },
{ nullptr, TAG_NUM_OF_ITEM_TYPES }
};
static enum tag_type
tag_ape_name_parse(const char *name)
{
enum tag_type type = tag_table_lookup_i(ape_tags, name);
if (type == TAG_NUM_OF_ITEM_TYPES)
type = tag_name_parse_i(name);
return type;
}
/**
* @return true if the item was recognized
*/
static bool
tag_ape_import_item(unsigned long flags,
const char *key, const char *value, size_t value_length,
const struct tag_handler *handler, void *handler_ctx)
{
/* we only care about utf-8 text tags */
if ((flags & (0x3 << 1)) != 0)
return false;
tag_handler_invoke_pair(handler, handler_ctx, key, value);
enum tag_type type = tag_ape_name_parse(key);
if (type == TAG_NUM_OF_ITEM_TYPES)
return false;
bool recognized = false;
const char *end = value + value_length;
while (true) {
/* multiple values are separated by null bytes */
const char *n = (const char *)memchr(value, 0, end - value);
if (n != nullptr) {
if (n > value) {
tag_handler_invoke_tag(handler, handler_ctx,
type, value);
recognized = true;
}
value = n + 1;
} else {
char *p = g_strndup(value, end - value);
tag_handler_invoke_tag(handler, handler_ctx,
type, p);
g_free(p);
recognized = true;
break;
}
}
return recognized;
}
bool
tag_ape_scan2(const char *path_fs,
const struct tag_handler *handler, void *handler_ctx)
{
bool recognized = false;
auto callback = [handler, handler_ctx, &recognized]
(unsigned long flags, const char *key,
const char *value,
size_t value_length) {
recognized |= tag_ape_import_item(flags, key, value,
value_length,
handler, handler_ctx);
return true;
};
return tag_ape_scan(path_fs, callback) && recognized;
}
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