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/* the Music Player Daemon (MPD)
* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu
* 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 "tag.h"
#include "path.h"
#include "myfprintf.h"
#include "utils.h"
#include "utf8.h"
#include "log.h"
#include "inputStream.h"
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#ifdef HAVE_OGG
#include <vorbis/vorbisfile.h>
#endif
#ifdef HAVE_FLAC
#include <FLAC/file_decoder.h>
#include <FLAC/metadata.h>
#endif
void printMpdTag(FILE * fp, MpdTag * tag) {
if(tag->artist) myfprintf(fp,"Artist: %s\n",tag->artist);
if(tag->album) myfprintf(fp,"Album: %s\n",tag->album);
if(tag->track) myfprintf(fp,"Track: %s\n",tag->track);
if(tag->title) myfprintf(fp,"Title: %s\n",tag->title);
if(tag->time>=0) myfprintf(fp,"Time: %i\n",tag->time);
}
#define fixUtf8(str) { \
if(str && !validUtf8String(str)) { \
char * temp; \
DEBUG("not valid utf8 in tag: %s\n",str); \
temp = latin1StrToUtf8Dup(str); \
free(str); \
str = temp; \
stripReturnChar(str); \
} \
}
void validateUtf8Tag(MpdTag * tag) {
fixUtf8(tag->artist);
fixUtf8(tag->album);
fixUtf8(tag->track);
fixUtf8(tag->title);
}
#ifdef HAVE_ID3TAG
char * getID3Info(struct id3_tag * tag, char * id) {
struct id3_frame const * frame;
id3_ucs4_t const * ucs4;
id3_utf8_t * utf8;
union id3_field const * field;
unsigned int nstrings;
frame = id3_tag_findframe(tag, id, 0);
if(!frame) return NULL;
field = &frame->fields[1];
nstrings = id3_field_getnstrings(field);
if(nstrings<1) return NULL;
ucs4 = id3_field_getstrings(field,0);
assert(ucs4);
utf8 = id3_ucs4_utf8duplicate(ucs4);
if(!utf8) return NULL;
return utf8;
}
#endif
#ifdef HAVE_ID3TAG
MpdTag * parseId3Tag(struct id3_tag * tag) {
MpdTag * ret = NULL;
char * str;
str = getID3Info(tag,ID3_FRAME_ARTIST);
if(str) {
if(!ret) ret = newMpdTag();
stripReturnChar(str);
ret->artist = str;
}
str = getID3Info(tag,ID3_FRAME_TITLE);
if(str) {
if(!ret) ret = newMpdTag();
stripReturnChar(str);
ret->title = str;
}
str = getID3Info(tag,ID3_FRAME_ALBUM);
if(str) {
if(!ret) ret = newMpdTag();
stripReturnChar(str);
ret->album = str;
}
str = getID3Info(tag,ID3_FRAME_TRACK);
if(str) {
if(!ret) ret = newMpdTag();
stripReturnChar(str);
ret->track = str;
}
return ret;
}
#endif
MpdTag * id3Dup(char * file) {
MpdTag * ret = NULL;
#ifdef HAVE_ID3TAG
struct id3_file * id3_file;
struct id3_tag * tag;
id3_file = id3_file_open(file, ID3_FILE_MODE_READONLY);
if(!id3_file) {
return NULL;
}
tag = id3_file_tag(id3_file);
if(!tag) {
id3_file_close(id3_file);
return NULL;
}
ret = parseId3Tag(tag);
id3_file_close(id3_file);
#endif
return ret;
}
MpdTag * newMpdTag() {
MpdTag * ret = malloc(sizeof(MpdTag));
ret->album = NULL;
ret->artist = NULL;
ret->title = NULL;
ret->track = NULL;
ret->time = -1;
return ret;
}
void clearMpdTag(MpdTag * tag) {
if(tag->artist) free(tag->artist);
if(tag->album) free(tag->album);
if(tag->title) free(tag->title);
if(tag->track) free(tag->track);
}
void freeMpdTag(MpdTag * tag) {
clearMpdTag(tag);
free(tag);
}
MpdTag * mpdTagDup(MpdTag * tag) {
MpdTag * ret = NULL;
if(tag) {
ret = newMpdTag();
if(tag->artist) ret->artist = strdup(tag->artist);
if(tag->album) ret->album = strdup(tag->album);
if(tag->title) ret->title = strdup(tag->title);
if(tag->track) ret->track = strdup(tag->track);
ret->time = tag->time;
}
return ret;
}
int mpdTagStringsAreEqual(char * s1, char * s2) {
if(s1 && s2) {
if(strcmp(s1, s2)) return 0;
}
else if(s1 || s2) return 0;
return 1;
}
int mpdTagsAreEqual(MpdTag * tag1, MpdTag * tag2) {
if(tag1 == NULL && tag2 == NULL) return 1;
else if(!tag1 || ! !tag2) return 0;
if(tag1->time != tag2->time) return 0;
if(!mpdTagStringsAreEqual(tag1->artist, tag2->artist)) return 0;
if(!mpdTagStringsAreEqual(tag1->album, tag2->album)) return 0;
if(!mpdTagStringsAreEqual(tag1->track, tag2->track)) return 0;
if(!mpdTagStringsAreEqual(tag1->title, tag2->title)) return 0;
return 1;
}
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