/*
* 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 <stdio.h>
#include <sys/stat.h>
//#include "functions.c"
struct tagInfo{
int mode;
int cbr;
int bitrate;
unsigned int freq;
char *artist;
char *title;
char *album;
char *comment;
char *genre;
//int genre;
//int track;
};
static int RATES[2][3][15]={
{//mpeg2
{-1,8,16,24,32,64,80,56,64,128,160,112,128,256,320},//layer3 (V2)
{-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384},//layer2 (V2)
{-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448},//layer1 (V2)
},
{//mpeg1
{-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320},//layer3 (V1)
{-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384},//layer2 (V1)
{-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448},//layer1 (V1)
}};
static int FREQS[2][4]={{22050,24000,16000,-1},{44100,48000,32000,-1}};
//static double FRATES[]={38.5,32.5,27.8,0.0};
static char GENRES[][50]={"Blues","Classic Rock","Country","Dance","Disco","Funk","Grunge","Hip-Hop","Jazz","Metal",
"New Age","Oldies","Other","Pop","R&B","Rap","Reggae","Rock","Techno","Industrial",
"Alternative","Ska","Death Metal","Pranks","Soundtrack","Euro-Techno","Ambient","Trip-Hop","Vocal","Jazz+Funk",
"Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound Clip","Gospel","Noise",
"AlternRock","Bass","Soul","Punk","Space","Meditative","Instrumental Pop","Instrumental Rock","Ethnic","Gothic",
"Darkwave","Techno-Industrial","Electronic","Pop-Folk","Eurodance","Dream","Southern Rock","Comedy","Cult","Gangsta",
"Top 40","Christian Rap","Pop/Funk","Jungle","Native American","Cabaret","New Wave","Psychadelic","Rave","Showtunes",
"Trailer","Lo-Fi","Tribal","Acid Punk","Acid Jazz","Polka","Retro","Musical","Rock & Roll","Hard Rock",
//################## END OF OFFICIAL ID3 TAGS, WINAMP TAGS BELOW ########################################
"Folk","Folk/Rock","National Folk","Swing","Fast Fusion","Bebob","Latin","Revival","Celtic","Bluegrass",
"Avantgarde","Gothic Rock","Progressive Rock","Psychedelic Rock","Symphonic Rock","Slow Rock","Big Band","Chorus","Easy Listening","Acoustic",
"Humour","Speech","Chanson","Opera","Chamber Music","Sonata","Symphony","Booty Bass","Primus","Porn Groove",
"Satire","Slow Jam","Club","Tango","Samba","Folklore","Ballad","Poweer Ballad","Rhytmic Soul","Freestyle",
"Duet","Punk Rock","Drum Solo","A Capela","Euro-House","Dance Hall",
//################## FOUND AT http://en.wikipedia.org/wiki/ID3 ###########################################
"Goa","Drum & Bass","Club-House","Hardcore",
"Terror","Indie","BritPop","Negerpunk","Polsk Punk","Beat","Christian Gangsta Rap","Heavy Metal","Black Metal","Crossover",
"Contemporary Christian","Christian Rock","Merengue","Salsa","Thrash Metal","Anime","JPop","Synthpop"
};
static char MODES [][13]={"Stereo","Joint-Stereo","Dual-Channel","Mono"};
int iPow(int x, int y){return (int)(pow((double)x,(double) y));}
int str2int(char *text){
//if (DEBUG==1) putlog("converting string to int");
int i;
int ret=0;
for (i=1;i<=strlen(text);i++){
if ((text[strlen(text)-i]>57)||(text[strlen(text)-i]<48)){
xchat_printf(ph,"invalid char in string: %i",text[strlen(text)-i]);
return 255;
}
ret+=((int)text[strlen(text)-i]-48)*iPow(10,i-1);
}
//xchat_printf(ph, "str2int(%s)=%i",text,ret);
//if (DEBUG==1) putlog("int converted");
return ret;
}
/*
static int getSize(char *file){
//if (DEBUG==1) putlog("reading filesize");
struct stat info;
if (stat(file,&info)!=0) return -1;
return info.st_size;
}*/
/*
int inStr(char *s1, int sl1, char *s2){
//if (DEBUG==1) putlog("checking instr");
int i;int j;
for(i=0;i<sl1-strlen(s2);i++){
for (j=0;j<strlen(s2);j++){
if (s1[i+j]!=s2[j]) j=strlen(s2)+2;
}
if (j==strlen(s2)) return i;
}
return -1;
}
static char *subString(char *text, int first, int length, int spcKill){
//if (DEBUG==1) putlog("creating substring");
char *ret=(char*) calloc (length+1,sizeof(char)); //malloc(sizeof(char)*(length+1));
ret[length]=0;int i;
for (i=0;i<length;i++){
ret[i]=text[i+first];
//if (ret[i]==0) ret[i]='0';
}
if (spcKill==1){
for (i=length-1;i>=0;i--){
if (ret[i]==32) ret[i]=0;
else i=-1;
}
}
//if (DEBUG==1) putlog("substring created");
return ret;
}
static char *substring(char *text, int first, int length){return subString(text,first,length,0);} //1
*/
static char *tagExtract(char *tag, int tagLen, char* info){
//if (DEBUG==1) putlog("extracting tag");
int pos=inStr(tag,tagLen,info);
//xchat_printf(ph,"pos=%i",pos);
if (pos==-1) return "";//NULL;
//printf("position of %s = %i\n",info,pos);
int len=0;
int i;
//for (i=pos;i<pos+10;i++)printf("tag[%i]=%i \n",i,tag[i]);
for (i=0;i<4;i++) {
len+=tag[pos+strlen(info)+i]*iPow(255,3-i);
}
//printf("Tag-Length: %i\n",len);
if (strcmp("COMM",info)!=0) return substring(tag,pos+7+strlen(info),len-1);//11
return substring(tag,pos+7+strlen(info),len-1);//11
//char *ct=substring(tag,pos+7+strlen(info),len-1);//11
//return substring(ct,strlen(ct)+1,len-1-strlen(ct)); //<-- do not understand, what i did here :(
}
struct tagInfo readID3V1(char *file){
//if (DEBUG==1) putlog("reading ID3V1");
FILE *f=fopen(file,"rb");
struct tagInfo ret; ret.artist=NULL;
char *tag =(char*) malloc(sizeof(char)*129);
if (f==NULL){
xchat_print(ph,"file not found while trying to read id3v1");
//if (DEBUG==1) putlog("file not found while trying to read id3v1");
return ret;
}
//int offset=getSize(file)-128;
int res=fseek(f,-128,SEEK_END);
if (res!=0) {printf("seek failed\n");fclose(f);return ret;}
//long int pos=ftell(f);
//printf("position= %li\n",pos);
int i;int c;
for (i=0;i<128;i++) {
c=fgetc(f);
if (c==EOF) {xchat_printf(ph,"read ID3V1 failed\n");fclose(f);return ret;}
tag[i]=(char)c;
}
fclose(f);
//printf("tag readed: \n");
char *id=substring(tag,0,3);
//printf("header: %s\n",id);
if (strcmp(id,"TAG")!=0){xchat_printf(ph,"no id3 v1 found\n");return ret;}
ret.title=subString(tag,3,30,1);
ret.artist=subString(tag,33,30,1);
ret.album=subString(tag,63,30,1);
ret.comment=subString(tag,97,30,1);
char *tmp=substring(tag,127,1);
//ret.genre=substring(tag,127,1);
int val=(int)tmp[0];
if (val<0)val+=256;
//xchat_printf(ph, "tmp[0]=%i (%i)",val,tmp[0]);
if ((val<148)&&(val>=0))
ret.genre=GENRES[val];//#############changed
else {
ret.genre="unknown";
//xchat_printf(ph, "tmp[0]=%i (%i)",val,tmp[0]);
}
//xchat_printf(ph, "tmp: \"%s\" -> %i",tmp,tmp[0]);
//xchat_printf(ph,"genre \"%s\"",ret.genre);
//if (DEBUG==1) putlog("id3v1 extracted");
return ret;
}
char *extractID3Genre(char *tag){
//if (DEBUG==1) putlog("extracting id3 genre");
if (tag[strlen(tag)-1]==')'){
tag[strlen(tag)-1]=0;
tag=&tag[1];
return GENRES[str2int(tag)];
//return tag;
}
else{
int i;
//xchat_print(ph, "Using 2 criteria");
for (i=0;i<strlen(tag);i++){
if (tag[i]==')'){ tag=&tag[i]+1;return tag;}
//return tag;
}
}
return "[152] failed";
}
struct tagInfo readID3V2(char *file){
//if (DEBUG==1) putlog("reading id3v2");
FILE *f=fopen(file,"rb");
//xchat_printf(ph,"file :%s",file);
struct tagInfo ret;
if (f==NULL){
xchat_print(ph,"file not found whilt trying to read ID3V2");
//if (DEBUG==1)putlog("file not found while trying to read ID3V2");
return ret;
}
int i;
char header[10];
int c;
ret.artist=NULL;
for (i=0;i<10;i++){
c=fgetc(f);
if (c==EOF){
//putlog("found eof while reading id3v2");
return ret;
}
header[i]=(char)c;
}
if (strstr(header,"ID3")==header){
//xchat_printf(ph,"found id3v2\n");
int len=0;
for (i=6;i<10;i++) len+=(int)header[i]*iPow(256,9-i);
//char *tag=(char*)malloc(sizeof(char)*len);
char *tag=(char*) calloc(len,sizeof(char)); //malloc(sizeof(char)*len);
for (i=0;i<len;i++){c=fgetc(f);tag[i]=(char)c;}
//xchat_printf(ph,"tag length: %i\n",len);
//xchat_printf(ph,"tag: %s\n",tag);
fclose(f);
ret.comment=tagExtract(tag,len,"COMM");
//xchat_printf(ph,"Comment: %s\n",ret.comment);
ret.genre=tagExtract(tag,len,"TCON");
//if (strcmp(ret.genre,"(127)")==0) ret.genre="unknown";
//xchat_printf(ph, "ret.genre = %s",ret.genre);
if ((ret.genre!=NULL)&&(ret.genre[0]=='(')) ret.genre=extractID3Genre(ret.genre);
//xchat_printf(ph,"genre: %s\n",ret.genre);
ret.title=tagExtract(tag,len,"TIT2");
//xchat_printf(ph,"Title: %s\n",ret.title);
ret.album=tagExtract(tag,len,"TALB");
//xchat_printf(ph,"Album: %s\n",ret.album);
ret.artist=tagExtract(tag,len,"TPE1");
//xchat_printf(ph,"Artist: %s\n",ret.artist);
}
else{fclose(f);printf("no id3v2 tag found\n"); return ret;}
//printf("id2v2 done\n");
//if (DEBUG==1) putlog("id3v2 readed");
return ret;
}
struct tagInfo readHeader(char *file){
//if (DEBUG==1) putlog("reading header");
FILE *f=fopen(file,"rb");
//int buffer[5120];
int header[4];
int count=0;
int cc=0;
struct tagInfo info; info.artist=NULL;
if (f==NULL){
xchat_print(ph,"file not found while trying to read mp3 header");
//if (DEBUG==1) putlog("file not found while trying to read mp3 header");
return info;
}
//struct tagInfo tagv2
info=readID3V2(file);
//struct tagInfo tagv1;//=readID3V1(file);
//if (tagv2.artist!=NULL){info=tagv2;}
//else {
if (info.artist==NULL){
//printf("searching for id3v1\n");
//tagv1=readID3V1(file);
info=readID3V1(file); //#####################
}
/*
if (tagv1.artist!=NULL){
//printf("Artist: %s\nTitle: %s\nAlbum: %s\nComment: %s\nGenre: %s\n",tagv1.artist,tagv1.title,tagv1.album,tagv1.comment,tagv1.genre);
info=tagv1;
}
*/
while ((count<5120)&&(cc!=EOF)&&(cc!=255)) {cc=fgetc(f);count++;}
if ((cc==EOF)||(count==5119)) printf("no header found\n");
else {
//printf("located header at %i\n",count);
header[0]=255;
for (count=1;count<4;count++){
header[count]=fgetc(f);
//printf("header[%i]=%i\n",count,header[count]);
}
int versionB=(header[1]&8)>>3;
int layerB=(header[1]&6)>>1;
int bitrateB=(header[2]&240)>>4; //4
int freqB=(header[2]&12)>>2;//2
int modeB=(header[3]&192)>>6;//6
//printf("Mpeg: %i\nLayer: %i\nBitrate: %i\nFreq: %i\nMode: %i\n",versionB, layerB, bitrateB, freqB, modeB);
//int Bitrate=RATES[versionB][layerB-1][bitrateB];
//int Freq=FREQS[versionB][freqB];
info.bitrate=RATES[versionB][layerB-1][bitrateB];
info.freq=FREQS[versionB][freqB];
info.mode=modeB;
}
fclose(f);
//if (DEBUG==1) putlog("header readed");
return info;
}
/*
static void printMp3Info(char *file){
//printf("\nScanning Mp3-File for Informations: %s\n",file);
//printf("size:\t%10d byte\n",getSize(file));
struct tagInfo info =readHeader(file);
printf("%s | %10d",file,getSize(file));
if (info.bitrate>0){
//printf("Bitrate: %i\nFreq: %i\nMode: %s\n",info.bitrate,info.freq,MODES[info.mode]);
printf(" | %i kbps | %i kHz | %s",info.bitrate,info.freq,MODES[info.mode]);
//if (info.artist!=NULL) printf("\nArtist: %s\nTitle: %s\nAlbum: %s\nComment: %s\nGenre: %s\n",info.artist,info.title,info.album,info.comment,info.genre);
if (info.artist!=NULL) {
printf("| %s | %s | %s | %s | %s",info.artist,info.title,info.album,info.comment,info.genre);
//printf("| %s ",info.title);//,info.title,info.album,info.comment,info.genre
}
}
printf("\n");
}
*/
