/* the Music Player Daemon (MPD) * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com) * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "metadataChunk.h" #include "gcc.h" #include <string.h> static void initMetadataChunk(MetadataChunk * chunk) { chunk->name = -1; chunk->artist = -1; chunk->album = -1; chunk->title = -1; } #define dupElementToTag(item, element) { \ if(element >= 0 && element < METADATA_BUFFER_LENGTH) { \ addItemToMpdTag(ret, item, chunk->buffer+element); \ } \ } MpdTag *metadataChunkToMpdTagDup(MetadataChunk * chunk) { MpdTag *ret = newMpdTag(); chunk->buffer[METADATA_BUFFER_LENGTH - 1] = '\0'; dupElementToTag(TAG_ITEM_NAME, chunk->name); dupElementToTag(TAG_ITEM_TITLE, chunk->title); dupElementToTag(TAG_ITEM_ARTIST, chunk->artist); dupElementToTag(TAG_ITEM_ALBUM, chunk->album); return ret; } #define copyStringToChunk(string, element) { \ if(element < 0 && string && (slen = strlen(string)) && \ pos < METADATA_BUFFER_LENGTH-1) \ { \ size_t len = slen; \ size_t max = METADATA_BUFFER_LENGTH - 1 - pos; \ if (mpd_unlikely(len > max)) \ len = max; \ memcpy(chunk->buffer+pos, string, len); \ *(chunk->buffer+pos+len) = '\0'; \ element = pos; \ pos += slen+1; \ } \ } void copyMpdTagToMetadataChunk(MpdTag * tag, MetadataChunk * chunk) { int pos = 0; int slen; int i; initMetadataChunk(chunk); if (!tag) return; for (i = 0; i < tag->numOfItems; i++) { switch (tag->items[i].type) { case TAG_ITEM_NAME: copyStringToChunk(tag->items[i].value, chunk->name); break; case TAG_ITEM_TITLE: copyStringToChunk(tag->items[i].value, chunk->title); break; case TAG_ITEM_ARTIST: copyStringToChunk(tag->items[i].value, chunk->artist); break; case TAG_ITEM_ALBUM: copyStringToChunk(tag->items[i].value, chunk->album); break; } } }