113 lines
4.0 KiB
C
113 lines
4.0 KiB
C
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/*
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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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static int getOggInt(char *buff, int beg, int bytes){
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//if (DEBUG==1) putlog("getOggInt");
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int ret=0;
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int i;
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for (i=0;i<bytes;i++){
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if (buff[i+beg]>=0) ret+=buff[i+beg]*iPow(256,i);else ret+=(256+buff[i+beg])*iPow(256,i);
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//printf("[%i]=%i\n",i,buff[i+beg]);
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}
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return ret;
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}
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static char *upperStr(char *text){
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//if (DEBUG==1) putlog("converting text to uc");
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//printf("upperStr(%s)\n",text);
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char *ret=(char*) malloc(sizeof(char)*(strlen(text)+1));
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ret[strlen(text)]=0;
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int i;
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for (i=0;i<strlen(text);i++) ret[i]=toupper(text[i]);
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//printf("Result: %s\n",ret);
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return ret;
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}
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struct tagInfo getOggHeader(char *file){
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//if (DEBUG==1) putlog("reading ogg header");
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FILE *f=fopen(file,"rb");
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struct tagInfo info; info.artist=NULL;
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if (f==NULL){
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xchat_print(ph,"file not found while trying to read ogg header");
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//if (DEBUG==1) putlog("file not found while trying to read ogg header");
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return info;
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}
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char header[4096];
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int i;int c;
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for (i=0;i<4095;i++) {c=fgetc(f);header[i]=(char)c;}
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fclose(f);
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char HEADLOC1[]="_vorbis";HEADLOC1[0]=1;
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char HEADLOC3[]="_vorbis";HEADLOC3[0]=3;
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char HEADLOC5[]="_vorbis";HEADLOC5[0]=5;
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int h1pos=inStr(header,4096,HEADLOC1);
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int h3pos=inStr(header,4096,HEADLOC3);
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//int h5pos=inStr(header,4096,HEADLOC5); //not needed
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//printf("loc1: %i\n",h1pos);printf("loc3: %i\n",h3pos);printf("loc5: %i\n",h5pos);
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int maxBr=getOggInt(header,h1pos+7+9,4);
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int nomBr=getOggInt(header,h1pos+7+13,4);
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int minBr=getOggInt(header,h1pos+7+17,4);
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info.freq=getOggInt(header,h1pos+7+5,4);
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info.mode=header[h1pos+7+4];
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info.bitrate=nomBr;
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if (((maxBr==nomBr)&&(nomBr=minBr))||((minBr==0)&&(maxBr==0))||((minBr=-1)&&(maxBr=-1)) )info.cbr=1;else info.cbr=0;
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printf("bitrates: %i|%i|%i\n",maxBr,nomBr,minBr);
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printf("freq: %i\n",info.freq);
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int pos=h3pos+7;
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pos+=getOggInt(header,pos,4)+4;
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int count=getOggInt(header,pos,4);
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//printf("tags: %i\n",count);
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pos+=4;
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int tagLen;
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char *sub;
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char *name;char *val;
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info.artist=NULL;info.title=NULL;info.album=NULL;info.comment=NULL;info.genre=NULL;
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for (i=0;i<count;i++){
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tagLen=getOggInt(header,pos,4);
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//printf("taglength: %i\n",tagLen);
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sub=substring(header,pos+4,tagLen);
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name=upperStr(substring(sub,0,inStr(sub,tagLen,"=")));
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val=substring(sub,inStr(sub,tagLen,"=")+1,tagLen-inStr(sub,tagLen,"=")-1);
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//printf("Tag: %s\n",sub);
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//printf("Name: %s\n",name);
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//printf("value: %s\n",val);
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if (strcmp(name,"ARTIST")==0) info.artist=val;
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if (strcmp(name,"TITLE")==0) info.title=val;
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if (strcmp(name,"ALBUM")==0) info.album=val;
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if (strcmp(name,"GENRE")==0) info.genre=val;
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if (strcmp(name,"COMMENT")==0) info.comment=val;
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pos+=4+tagLen;
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}
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if (info.artist==NULL) info.artist="";
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if (info.album==NULL) info.album ="";
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if (info.title==NULL) info.title="";
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if (info.genre==NULL) info.genre="";
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if (info.comment==NULL) info.comment="";
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printf("Artist: %s\nTitle: %s\nAlbum: %s\n",info.artist,info.title, info.album);
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printf("Genre: %s\nComment: %s\nMode: %i\nCBR: %i\n",info.genre,info.comment,info.mode,info.cbr);
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//if (DEBUG==1) putlog("ogg header readed");
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return info;
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}
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/*
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void printOggInfo(char *file){
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printf("Scanning Ogg-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 = getOggHeader(file);
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}
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*/
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