mirror of
https://github.com/moparisthebest/hexchat
synced 2024-12-17 21:32:40 -05:00
362 lines
12 KiB
C
362 lines
12 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//#include <stdio.h>
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#include <sys/stat.h>
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//#include "functions.c"
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struct tagInfo{
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int mode;
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int cbr;
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int bitrate;
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unsigned int freq;
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char *artist;
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char *title;
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char *album;
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char *comment;
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char *genre;
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//int genre;
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//int track;
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};
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static int RATES[2][3][15]={
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{//mpeg2
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{-1,8,16,24,32,64,80,56,64,128,160,112,128,256,320},//layer3 (V2)
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{-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384},//layer2 (V2)
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{-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448},//layer1 (V2)
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},
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{//mpeg1
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{-1,32,40,48,56,64,80,96,112,128,160,192,224,256,320},//layer3 (V1)
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{-1,32,48,56,64,80,96,112,128,160,192,224,256,320,384},//layer2 (V1)
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{-1,32,64,96,128,160,192,224,256,288,320,352,384,416,448},//layer1 (V1)
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}};
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static int FREQS[2][4]={{22050,24000,16000,-1},{44100,48000,32000,-1}};
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//static double FRATES[]={38.5,32.5,27.8,0.0};
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static char GENRES[][50]={"Blues","Classic Rock","Country","Dance","Disco","Funk","Grunge","Hip-Hop","Jazz","Metal",
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"New Age","Oldies","Other","Pop","R&B","Rap","Reggae","Rock","Techno","Industrial",
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"Alternative","Ska","Death Metal","Pranks","Soundtrack","Euro-Techno","Ambient","Trip-Hop","Vocal","Jazz+Funk",
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"Fusion","Trance","Classical","Instrumental","Acid","House","Game","Sound Clip","Gospel","Noise",
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"AlternRock","Bass","Soul","Punk","Space","Meditative","Instrumental Pop","Instrumental Rock","Ethnic","Gothic",
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"Darkwave","Techno-Industrial","Electronic","Pop-Folk","Eurodance","Dream","Southern Rock","Comedy","Cult","Gangsta",
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"Top 40","Christian Rap","Pop/Funk","Jungle","Native American","Cabaret","New Wave","Psychadelic","Rave","Showtunes",
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"Trailer","Lo-Fi","Tribal","Acid Punk","Acid Jazz","Polka","Retro","Musical","Rock & Roll","Hard Rock",
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//################## END OF OFFICIAL ID3 TAGS, WINAMP TAGS BELOW ########################################
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"Folk","Folk/Rock","National Folk","Swing","Fast Fusion","Bebob","Latin","Revival","Celtic","Bluegrass",
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"Avantgarde","Gothic Rock","Progressive Rock","Psychedelic Rock","Symphonic Rock","Slow Rock","Big Band","Chorus","Easy Listening","Acoustic",
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"Humour","Speech","Chanson","Opera","Chamber Music","Sonata","Symphony","Booty Bass","Primus","Porn Groove",
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"Satire","Slow Jam","Club","Tango","Samba","Folklore","Ballad","Poweer Ballad","Rhytmic Soul","Freestyle",
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"Duet","Punk Rock","Drum Solo","A Capela","Euro-House","Dance Hall",
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//################## FOUND AT http://en.wikipedia.org/wiki/ID3 ###########################################
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"Goa","Drum & Bass","Club-House","Hardcore",
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"Terror","Indie","BritPop","Negerpunk","Polsk Punk","Beat","Christian Gangsta Rap","Heavy Metal","Black Metal","Crossover",
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"Contemporary Christian","Christian Rock","Merengue","Salsa","Thrash Metal","Anime","JPop","Synthpop"
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};
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static char MODES [][13]={"Stereo","Joint-Stereo","Dual-Channel","Mono"};
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int iPow(int x, int y){return (int)(pow((double)x,(double) y));}
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int str2int(char *text){
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//if (DEBUG==1) putlog("converting string to int");
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int i;
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int ret=0;
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for (i=1;i<=strlen(text);i++){
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if ((text[strlen(text)-i]>57)||(text[strlen(text)-i]<48)){
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xchat_printf(ph,"invalid char in string: %i",text[strlen(text)-i]);
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return 255;
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}
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ret+=((int)text[strlen(text)-i]-48)*iPow(10,i-1);
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}
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//xchat_printf(ph, "str2int(%s)=%i",text,ret);
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//if (DEBUG==1) putlog("int converted");
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return ret;
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}
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/*
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static int getSize(char *file){
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//if (DEBUG==1) putlog("reading filesize");
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struct stat info;
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if (stat(file,&info)!=0) return -1;
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return info.st_size;
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}*/
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/*
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int inStr(char *s1, int sl1, char *s2){
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//if (DEBUG==1) putlog("checking instr");
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int i;int j;
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for(i=0;i<sl1-strlen(s2);i++){
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for (j=0;j<strlen(s2);j++){
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if (s1[i+j]!=s2[j]) j=strlen(s2)+2;
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}
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if (j==strlen(s2)) return i;
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}
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return -1;
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}
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static char *subString(char *text, int first, int length, int spcKill){
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//if (DEBUG==1) putlog("creating substring");
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char *ret=(char*) calloc (length+1,sizeof(char)); //malloc(sizeof(char)*(length+1));
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ret[length]=0;int i;
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for (i=0;i<length;i++){
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ret[i]=text[i+first];
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//if (ret[i]==0) ret[i]='0';
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}
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if (spcKill==1){
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for (i=length-1;i>=0;i--){
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if (ret[i]==32) ret[i]=0;
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else i=-1;
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}
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}
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//if (DEBUG==1) putlog("substring created");
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return ret;
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}
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static char *substring(char *text, int first, int length){return subString(text,first,length,0);} //1
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*/
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static char *tagExtract(char *tag, int tagLen, char* info){
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//if (DEBUG==1) putlog("extracting tag");
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int pos, len, i;
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pos=inStr(tag,tagLen,info);
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//xchat_printf(ph,"pos=%i",pos);
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if (pos==-1) return "";//NULL;
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//printf("position of %s = %i\n",info,pos);
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len=0;
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//for (i=pos;i<pos+10;i++)printf("tag[%i]=%i \n",i,tag[i]);
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for (i=0;i<4;i++) {
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len+=tag[pos+strlen(info)+i]*iPow(255,3-i);
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}
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//printf("Tag-Length: %i\n",len);
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if (strcmp("COMM",info)!=0) return substring(tag,pos+7+strlen(info),len-1);//11
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return substring(tag,pos+7+strlen(info),len-1);//11
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//char *ct=substring(tag,pos+7+strlen(info),len-1);//11
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//return substring(ct,strlen(ct)+1,len-1-strlen(ct)); //<-- do not understand, what i did here :(
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}
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struct tagInfo readID3V1(char *file){
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//if (DEBUG==1) putlog("reading ID3V1");
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FILE *f;
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struct tagInfo ret;
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int res, i, c, val;
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char *tag;
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char *id;
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char *tmp;
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tag = (char*) malloc(sizeof(char)*129);
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ret.artist=NULL;
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f=fopen(file,"rb");
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if (f==NULL){
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xchat_print(ph,"file not found while trying to read id3v1");
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//if (DEBUG==1) putlog("file not found while trying to read id3v1");
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return ret;
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}
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//int offset=getSize(file)-128;
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res=fseek(f,-128,SEEK_END);
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if (res!=0) {printf("seek failed\n");fclose(f);return ret;}
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//long int pos=ftell(f);
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//printf("position= %li\n",pos);
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for (i=0;i<128;i++) {
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c=fgetc(f);
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if (c==EOF) {xchat_printf(ph,"read ID3V1 failed\n");fclose(f);return ret;}
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tag[i]=(char)c;
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}
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fclose(f);
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//printf("tag readed: \n");
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id=substring(tag,0,3);
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//printf("header: %s\n",id);
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if (strcmp(id,"TAG")!=0){xchat_printf(ph,"no id3 v1 found\n");return ret;}
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ret.title=subString(tag,3,30,1);
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ret.artist=subString(tag,33,30,1);
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ret.album=subString(tag,63,30,1);
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ret.comment=subString(tag,97,30,1);
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tmp=substring(tag,127,1);
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//ret.genre=substring(tag,127,1);
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val=(int)tmp[0];
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if (val<0)val+=256;
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//xchat_printf(ph, "tmp[0]=%i (%i)",val,tmp[0]);
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if ((val<148)&&(val>=0))
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ret.genre=GENRES[val];//#############changed
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else {
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ret.genre="unknown";
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//xchat_printf(ph, "tmp[0]=%i (%i)",val,tmp[0]);
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}
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//xchat_printf(ph, "tmp: \"%s\" -> %i",tmp,tmp[0]);
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//xchat_printf(ph,"genre \"%s\"",ret.genre);
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//if (DEBUG==1) putlog("id3v1 extracted");
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return ret;
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}
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char *extractID3Genre(char *tag){
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//if (DEBUG==1) putlog("extracting id3 genre");
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if (tag[strlen(tag)-1]==')'){
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tag[strlen(tag)-1]=0;
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tag=&tag[1];
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return GENRES[str2int(tag)];
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//return tag;
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}
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else{
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int i;
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//xchat_print(ph, "Using 2 criteria");
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for (i=0;i<strlen(tag);i++){
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if (tag[i]==')'){ tag=&tag[i]+1;return tag;}
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//return tag;
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}
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}
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return "[152] failed";
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}
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struct tagInfo readID3V2(char *file){
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//if (DEBUG==1) putlog("reading id3v2");
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FILE *f;
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int i, c, len;
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char header[10];
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char *tag;
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struct tagInfo ret;
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f = fopen(file,"rb");
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//xchat_printf(ph,"file :%s",file);
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if (f==NULL)
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{
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xchat_print(ph,"file not found whilt trying to read ID3V2");
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//if (DEBUG==1)putlog("file not found while trying to read ID3V2");
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return ret;
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}
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ret.artist=NULL;
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for (i=0;i<10;i++){
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c=fgetc(f);
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if (c==EOF){
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//putlog("found eof while reading id3v2");
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return ret;
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}
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header[i]=(char)c;
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}
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if (strstr(header,"ID3")==header){
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//xchat_printf(ph,"found id3v2\n");
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len=0;
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for (i=6;i<10;i++) len+=(int)header[i]*iPow(256,9-i);
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//char *tag=(char*)malloc(sizeof(char)*len);
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tag=(char*) calloc(len,sizeof(char)); //malloc(sizeof(char)*len);
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for (i=0;i<len;i++){c=fgetc(f);tag[i]=(char)c;}
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//xchat_printf(ph,"tag length: %i\n",len);
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//xchat_printf(ph,"tag: %s\n",tag);
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fclose(f);
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ret.comment=tagExtract(tag,len,"COMM");
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//xchat_printf(ph,"Comment: %s\n",ret.comment);
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ret.genre=tagExtract(tag,len,"TCON");
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//if (strcmp(ret.genre,"(127)")==0) ret.genre="unknown";
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//xchat_printf(ph, "ret.genre = %s",ret.genre);
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if ((ret.genre!=NULL)&&(ret.genre[0]=='(')) ret.genre=extractID3Genre(ret.genre);
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//xchat_printf(ph,"genre: %s\n",ret.genre);
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ret.title=tagExtract(tag,len,"TIT2");
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//xchat_printf(ph,"Title: %s\n",ret.title);
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ret.album=tagExtract(tag,len,"TALB");
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//xchat_printf(ph,"Album: %s\n",ret.album);
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ret.artist=tagExtract(tag,len,"TPE1");
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//xchat_printf(ph,"Artist: %s\n",ret.artist);
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}
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else{fclose(f);printf("no id3v2 tag found\n"); return ret;}
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//printf("id2v2 done\n");
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//if (DEBUG==1) putlog("id3v2 readed");
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return ret;
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}
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struct tagInfo readHeader(char *file){
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//if (DEBUG==1) putlog("reading header");
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FILE *f;
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//int buffer[5120];
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int versionB, layerB, bitrateB, freqB, modeB;
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int header[4];
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int count=0;
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int cc=0;
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struct tagInfo info;
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info.artist=NULL;
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f = fopen(file,"rb");
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if (f==NULL)
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{
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xchat_print(ph,"file not found while trying to read mp3 header");
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//if (DEBUG==1) putlog("file not found while trying to read mp3 header");
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return info;
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}
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//struct tagInfo tagv2
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info=readID3V2(file);
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//struct tagInfo tagv1;//=readID3V1(file);
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//if (tagv2.artist!=NULL){info=tagv2;}
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//else {
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if (info.artist==NULL){
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//printf("searching for id3v1\n");
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//tagv1=readID3V1(file);
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info=readID3V1(file); //#####################
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}
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/*
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if (tagv1.artist!=NULL){
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//printf("Artist: %s\nTitle: %s\nAlbum: %s\nComment: %s\nGenre: %s\n",tagv1.artist,tagv1.title,tagv1.album,tagv1.comment,tagv1.genre);
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info=tagv1;
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}
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*/
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while ((count<5120)&&(cc!=EOF)&&(cc!=255)) {cc=fgetc(f);count++;}
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if ((cc==EOF)||(count==5119)) printf("no header found\n");
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else {
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//printf("located header at %i\n",count);
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header[0]=255;
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for (count=1;count<4;count++){
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header[count]=fgetc(f);
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//printf("header[%i]=%i\n",count,header[count]);
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}
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versionB=(header[1]&8)>>3;
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layerB=(header[1]&6)>>1;
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bitrateB=(header[2]&240)>>4; //4
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freqB=(header[2]&12)>>2;//2
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modeB=(header[3]&192)>>6;//6
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//printf("Mpeg: %i\nLayer: %i\nBitrate: %i\nFreq: %i\nMode: %i\n",versionB, layerB, bitrateB, freqB, modeB);
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//int Bitrate=RATES[versionB][layerB-1][bitrateB];
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//int Freq=FREQS[versionB][freqB];
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info.bitrate=RATES[versionB][layerB-1][bitrateB];
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info.freq=FREQS[versionB][freqB];
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info.mode=modeB;
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}
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fclose(f);
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//if (DEBUG==1) putlog("header readed");
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return info;
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}
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/*
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static void printMp3Info(char *file){
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//printf("\nScanning Mp3-File for Informations: %s\n",file);
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//printf("size:\t%10d byte\n",getSize(file));
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struct tagInfo info =readHeader(file);
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printf("%s | %10d",file,getSize(file));
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if (info.bitrate>0){
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//printf("Bitrate: %i\nFreq: %i\nMode: %s\n",info.bitrate,info.freq,MODES[info.mode]);
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printf(" | %i kbps | %i kHz | %s",info.bitrate,info.freq,MODES[info.mode]);
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//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);
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if (info.artist!=NULL) {
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printf("| %s | %s | %s | %s | %s",info.artist,info.title,info.album,info.comment,info.genre);
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//printf("| %s ",info.title);//,info.title,info.album,info.comment,info.genre
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}
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}
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printf("\n");
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}
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*/
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