/* 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 "sig_handlers.h"
#include "mp3_decode.h"
#include "audiofile_decode.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
#ifdef HAVE_ID3TAG
#ifdef USE_MPD_ID3TAG
#include "libid3tag/id3tag.h"
#else
#include <id3tag.h>
#endif
#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);
}
#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
MpdTag * id3Dup(char * utf8filename) {
MpdTag * ret = NULL;
#ifdef HAVE_ID3TAG
struct id3_file * file;
struct id3_tag * tag;
char * str;
blockSignals();
file = id3_file_open(rmp2amp(utf8ToFsCharset(utf8filename)),
ID3_FILE_MODE_READONLY);
if(!file) {
unblockSignals();
return NULL;
}
tag = id3_file_tag(file);
if(!tag) {
id3_file_close(file);
unblockSignals();
return NULL;
}
str = getID3Info(tag,ID3_FRAME_ARTIST);
if(str) {
if(!ret) ret = newMpdTag();
ret->artist = str;
}
str = getID3Info(tag,ID3_FRAME_TITLE);
if(str) {
if(!ret) ret = newMpdTag();
ret->title = str;
}
str = getID3Info(tag,ID3_FRAME_ALBUM);
if(str) {
if(!ret) ret = newMpdTag();
ret->album = str;
}
str = getID3Info(tag,ID3_FRAME_TRACK);
if(str) {
if(!ret) ret = newMpdTag();
ret->track = str;
}
id3_file_close(file);
unblockSignals();
#endif
return ret;
}
#ifdef HAVE_AUDIOFILE
MpdTag * audiofileTagDup(char * utf8file) {
MpdTag * ret = NULL;
int time = getAudiofileTotalTime(rmp2amp(utf8ToFsCharset(utf8file)));
if (time>=0) {
if(!ret) ret = newMpdTag();
ret->time = time;
}
return ret;
}
#endif
#ifdef HAVE_MAD
MpdTag * mp3TagDup(char * utf8file) {
MpdTag * ret = NULL;
int time;
ret = id3Dup(utf8file);
time = getMp3TotalTime(rmp2amp(utf8ToFsCharset(utf8file)));
if(time>=0) {
if(!ret) ret = newMpdTag();
ret->time = time;
}
return ret;
}
#endif
#ifdef HAVE_OGG
MpdTag * oggTagDup(char * utf8file) {
MpdTag * ret = NULL;
FILE * fp;
OggVorbis_File vf;
char ** comments;
char * temp;
char * s1;
char * s2;
while(!(fp = fopen(rmp2amp(utf8ToFsCharset(utf8file)),"r"))
&& errno==EINTR);
if(!fp) return NULL;
blockSignals();
if(ov_open(fp,&vf,NULL,0)<0) {
unblockSignals();
while(fclose(fp) && errno==EINTR);
return NULL;
}
ret = newMpdTag();
ret->time = (int)(ov_time_total(&vf,-1)+0.5);
comments = ov_comment(&vf,-1)->user_comments;
while(*comments) {
temp = strdup(*comments);
++comments;
if(!(s1 = strtok(temp,"="))) continue;
s2 = strtok(NULL,"");
if(!s1 || !s2);
else if(0==strcasecmp(s1,"artist")) {
if(!ret->artist) {
ret->artist = strdup(s2);
}
}
else if(0==strcasecmp(s1,"title")) {
if(!ret->title) {
ret->title = strdup(s2);
}
}
else if(0==strcasecmp(s1,"album")) {
if(!ret->album) {
ret->album = strdup(s2);
}
}
else if(0==strcasecmp(s1,"tracknumber")) {
if(!ret->track) {
ret->track = strdup(s2);
}
}
free(temp);
}
ov_clear(&vf);
unblockSignals();
return ret;
}
#endif
#ifdef HAVE_FLAC
MpdTag * flacMetadataDup(char * utf8file, int * vorbisCommentFound) {
MpdTag * ret = NULL;
FLAC__Metadata_SimpleIterator * it;
FLAC__StreamMetadata * block = NULL;
int offset;
int len, pos;
*vorbisCommentFound = 0;
blockSignals();
it = FLAC__metadata_simple_iterator_new();
if(!FLAC__metadata_simple_iterator_init(it,rmp2amp(utf8ToFsCharset(utf8file)),1,0)) {
FLAC__metadata_simple_iterator_delete(it);
unblockSignals();
return ret;
}
do {
block = FLAC__metadata_simple_iterator_get_block(it);
if(!block) break;
if(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
char * dup;
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"artist");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("artist=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
ret->artist = dup;
}
}
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"album");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("album=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
ret->album = dup;
}
}
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"title");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("title=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
ret->title = dup;
}
}
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"tracknumber");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("tracknumber=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
ret->track = dup;
}
}
}
else if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
if(!ret) ret = newMpdTag();
ret->time = ((float)block->data.stream_info.
total_samples) /
block->data.stream_info.sample_rate +
0.5;
}
FLAC__metadata_object_delete(block);
} while(FLAC__metadata_simple_iterator_next(it));
FLAC__metadata_simple_iterator_delete(it);
unblockSignals();
return ret;
}
MpdTag * flacTagDup(char * file) {
MpdTag * ret = NULL;
int foundVorbisComment = 0;
ret = flacMetadataDup(file,&foundVorbisComment);
if(!ret) return NULL;
if(!foundVorbisComment) {
MpdTag * temp = id3Dup(file);
if(temp) {
temp->time = ret->time;
freeMpdTag(ret);
ret = temp;
}
}
return ret;
}
#endif
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 freeMpdTag(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);
free(tag);
}
MpdTag * mpdTagDup(MpdTag * tag) {
MpdTag * ret = NULL;
if(tag) {
ret = newMpdTag();
ret->artist = strdup(tag->artist);
ret->album = strdup(tag->album);
ret->title = strdup(tag->title);
ret->track = strdup(tag->track);
ret->time = tag->time;
}
return ret;
}
