/*CTag - Class to read/write id3v2/mp4 tagsCopyright (C) 2004 Antonio Foranna This program is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation.	This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See theGNU General Public License for more details.		You should have received a copy of the GNU General Public Licensealong with this program; if not, write to the Free SoftwareFoundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.			The author can be contacted at:ntnfrn_email-temp@yahoo.it*/ #include <stdlib.h>#include <mp4.h>#define HAVE_INT32_T#include <faac.h>#include "CTag.h"   // *********************************************************************************************//										CMP4Tag// ********************************************************************************************* CMP4Tag::CMP4Tag(){//	memset(this,0,sizeof(*this));	copyright=NULL;	artist=title=album=year=genre=writer=comment=NULL;	trackno=ntracks=discno=ndiscs=0;	compilation=0;	artFilename=NULL;	art.pictureType=0; // = other	memset(&art,0,sizeof(art));}// ********************************************************************************************* void CMP4Tag::FreeTag(){	FREE_ARRAY(artist);	FREE_ARRAY(title);	FREE_ARRAY(album);	FREE_ARRAY(year);	FREE_ARRAY(genre);	FREE_ARRAY(writer);	FREE_ARRAY(comment);	FREE_ARRAY(artFilename);	FREE_ARRAY(art.data);	FREE_ARRAY(art.description);	FREE_ARRAY(art.mimeType);	FREE_ARRAY(art.format);}// *********************************************************************************************** int CMP4Tag::check_image_header(const char *buf){	if(!strncmp(buf, "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A", 8))		return 1; /* PNG */	if(!strncmp(buf, "\xFF\xD8\xFF\xE0", 4) &&		!strncmp(buf + 6, "JFIF\0",	5))		return 2; /* JPEG */	if(!strncmp(buf, "GIF87a", 6)	|| !strncmp(buf, "GIF89a", 6))		return 3; /* GIF */ 	return 0;}// ----------------------------------------------------------------------------------------------- int CMP4Tag::ReadCoverArtFile(char *pCoverArtFile, char **artData){FILE *artFile; 	if(!pCoverArtFile || !*pCoverArtFile)		return 0; 	if(!(artFile=fopen(pCoverArtFile, "rb")))	{	char buf[25+MAX_PATH+1];		sprintf(buf,"ReadCoverArtFile: can't open \"%s\"",pCoverArtFile);		MessageBox(NULL,buf,NULL,MB_OK);		return 0;	} int r;char *art;int	artSize=0; 	fseek(artFile, 0, SEEK_END);	artSize=ftell(artFile);	fseek(artFile, 0, SEEK_SET); 	if(!(art=(char *)malloc(artSize)))	{		fclose(artFile);		MessageBox(NULL,"ReadCoverArtFile: Memory allocation error!", NULL, MB_OK);		return 0;	} 	r=fread(art, 1, artSize, artFile);	if(r!=artSize)	{		free(art);		fclose(artFile);		MessageBox(NULL,"ReadCoverArtFile: Error reading cover art file!", NULL, MB_OK);		return 0;	}	else		if(artSize<12 || !check_image_header(art))		{			// the above expression checks the image signature			free(art);			fclose(artFile);			MessageBox(NULL,"ReadCoverArtFile: Unsupported cover image file format!", NULL, MB_OK);			return 0;		} 	FREE_ARRAY(*artData);	*artData=art;	fclose(artFile);	return artSize;}// ********************************************************************************************* int CMP4Tag::WriteMP4Tag(MP4FileHandle MP4File){char	buf[512], *faac_id_string, *faac_copyright_string; 	if(MP4File==NULL)	{		MessageBox(NULL,"WriteMp4Tag: can't open file!",NULL,MB_OK);		return 1;	} 	sprintf(buf, "FAAC v%s", (faacEncGetVersion(&faac_id_string, &faac_copyright_string)==FAAC_CFG_VERSION) ? faac_id_string : " wrong libfaac version");	MP4SetMetadataTool(MP4File, buf); 	if(artist) MP4SetMetadataArtist(MP4File, artist);	if(writer) MP4SetMetadataWriter(MP4File, writer);	if(title) MP4SetMetadataName(MP4File, title);	if(album) MP4SetMetadataAlbum(MP4File, album);	if(trackno>0) MP4SetMetadataTrack(MP4File, trackno, ntracks);	if(discno>0) MP4SetMetadataDisk(MP4File, discno, ndiscs);	if(compilation) MP4SetMetadataCompilation(MP4File, compilation);	if(year) MP4SetMetadataYear(MP4File, year);	if(genre) MP4SetMetadataGenre(MP4File, genre);	if(comment) MP4SetMetadataComment(MP4File, comment);	if(art.size=ReadCoverArtFile(artFilename,&art.data))	{		MP4SetMetadataCoverArt(MP4File, (unsigned __int8 *)art.data, art.size);		FREE_ARRAY(art.data);	}	return 0;}// ********************************************************************************************* int CMP4Tag::ReadMp4Tag(char *Filename)						 {MP4FileHandle MP4File; 	if(!(MP4File=MP4Read(Filename, 0)))	{	char buf[25+MAX_PATH+1];		sprintf(buf,"ReadMp4Tag: can't open \"%s\"",Filename);		MessageBox(NULL,buf,NULL,MB_OK);		return 1;	} 	FREE_ARRAY(copyright);	MP4GetMetadataTool(MP4File, &copyright); 	FREE_ARRAY(artist);	MP4GetMetadataArtist(MP4File, &artist);	FREE_ARRAY(writer);	MP4GetMetadataWriter(MP4File, &writer);	FREE_ARRAY(title);	MP4GetMetadataName(MP4File, &title);	FREE_ARRAY(album);	MP4GetMetadataAlbum(MP4File, &album);	MP4GetMetadataTrack(MP4File, (unsigned __int16 *)&trackno, (unsigned __int16 *)&ntracks);	MP4GetMetadataDisk(MP4File, (unsigned __int16 *)&discno, (unsigned __int16 *)&ndiscs);	MP4GetMetadataCompilation(MP4File, (unsigned __int8 *)&compilation);	FREE_ARRAY(year);	MP4GetMetadataYear(MP4File, &year);	FREE_ARRAY(genre);	MP4GetMetadataGenre(MP4File, &genre);	FREE_ARRAY(comment);	MP4GetMetadataComment(MP4File, &comment);	FREE_ARRAY(art.data);	MP4GetMetadataCoverArt(MP4File, (unsigned __int8 **)&art.data, (uint32_t *)&art.size); 	MP4Close(MP4File);/*	FILE *f=fopen("D:\\prova.jpg","wb");		fwrite(artFile,1,artSize,f);		fclose(f);*/	return 0;}// ********************************************************************************************* #define DEL_FIELD(id3Tag,ID3FID) \{ \ID3_Frame *Frame=id3Tag.Find(ID3FID); \	if(Frame!=NULL) \		id3Tag.RemoveFrame(Frame); \}// ----------------------------------------------------------------------------------------------- #define ADD_FIELD(id3Tag,ID3FID,ID3FN,data) \{ \ID3_Frame *NewFrame=new ID3_Frame(ID3FID); \	NewFrame->Field(ID3FN)=data; \	DEL_FIELD(id3Tag,ID3FID); \	id3Tag.AttachFrame(NewFrame); \}// ----------------------------------------------------------------------------------------------- int CMP4Tag::WriteAacTag(char *Filename){char	buf[512], *faac_id_string, *faac_copyright_string;ID3_Tag id3Tag;FILE *file; 	if((file=fopen(Filename,"r"))==NULL)	{	char buf[25+MAX_PATH+1];		sprintf(buf,"WriteAacTag: can't open \"%s\"",Filename);		MessageBox(NULL,buf,NULL,MB_OK);		return 1;	}	else		fclose(file);	id3Tag.Link(Filename); 	sprintf(buf, "FAAC v%s", (faacEncGetVersion(&faac_id_string, &faac_copyright_string)==FAAC_CFG_VERSION) ? faac_id_string : " wrong libfaac version");	ADD_FIELD(id3Tag,ID3FID_ENCODEDBY,ID3FN_TEXT,buf); 	ADD_FIELD(id3Tag,ID3FID_LEADARTIST,ID3FN_TEXT,artist);	ADD_FIELD(id3Tag,ID3FID_COMPOSER,ID3FN_TEXT,writer);	ADD_FIELD(id3Tag,ID3FID_TITLE,ID3FN_TEXT,title);	ADD_FIELD(id3Tag,ID3FID_ALBUM,ID3FN_TEXT,album);	sprintf(buf,"%d",trackno);	ADD_FIELD(id3Tag,ID3FID_TRACKNUM,ID3FN_TEXT,buf);	ADD_FIELD(id3Tag,ID3FID_YEAR,ID3FN_TEXT,year);	ADD_FIELD(id3Tag,ID3FID_CONTENTTYPE,ID3FN_TEXT,genre);	ADD_FIELD(id3Tag,ID3FID_COMMENT,ID3FN_TEXT,comment);	art.size=ReadCoverArtFile(artFilename,&art.data);	if(art.size)	{	ID3_Frame *NewFrame=new ID3_Frame(ID3FID_PICTURE);	char name[_MAX_FNAME], ext[_MAX_EXT];		_splitpath(artFilename,NULL,NULL,name,ext); 		NewFrame->Field(ID3FN_DESCRIPTION)=name;	char buf[15];		sprintf(buf,"image/%s",check_image_header(art.data)==2 ? "jpeg" : strlwr(ext+1));		NewFrame->Field(ID3FN_MIMETYPE)=buf;//		NewFrame->Field(ID3FN_IMAGEFORMAT)=;		NewFrame->Field(ID3FN_PICTURETYPE)=(DWORD)art.pictureType;		NewFrame->Field(ID3FN_DATA).Set((BYTE *)art.data,art.size);		id3Tag.AttachFrame(NewFrame);	} 	// setup all our rendering parameters    id3Tag.SetUnsync(false);    id3Tag.SetExtendedHeader(true);    id3Tag.SetCompression(true);    id3Tag.SetPadding(true); 	// write any changes to the file    id3Tag.Update(); 	FREE_ARRAY(art.data);	return 0;}// ********************************************************************************************* #define GET_FIELD_STR(id3Tag,ID3FID,ID3FN,data) \{ \	Frame=id3Tag.Find(ID3FID); \	if(Frame!=NULL) \	{ \	DWORD size=Frame->Field(ID3FN).Size(); \		FREE_ARRAY(data); \		if(data=(char *)malloc(size+1)) \			Frame->Field(ID3FN).Get(data,size+1); \	} \	else \		FREE_ARRAY(data); \}// ----------------------------------------------------------------------------------------------- int CMP4Tag::ReadAacTag(char *Filename){char	*buf=NULL;ID3_Tag id3Tag;ID3_Frame *Frame; 	if(!id3Tag.Link(Filename))	{	char buf[25+MAX_PATH+1];		sprintf(buf,"ReadAacTag: can't open \"%s\"",Filename);		MessageBox(NULL,buf,NULL,MB_OK);		return 1;	} 	GET_FIELD_STR(id3Tag,ID3FID_ENCODEDBY,ID3FN_TEXT,copyright); 	GET_FIELD_STR(id3Tag,ID3FID_LEADARTIST,ID3FN_TEXT,artist);	GET_FIELD_STR(id3Tag,ID3FID_COMPOSER,ID3FN_TEXT,writer);	GET_FIELD_STR(id3Tag,ID3FID_TITLE,ID3FN_TEXT,title);	GET_FIELD_STR(id3Tag,ID3FID_ALBUM,ID3FN_TEXT,album); 	GET_FIELD_STR(id3Tag,ID3FID_TRACKNUM,ID3FN_TEXT,buf);	if(buf)		trackno=atoi(buf);	FREE_ARRAY(buf);	GET_FIELD_STR(id3Tag,ID3FID_YEAR,ID3FN_TEXT,year);	GET_FIELD_STR(id3Tag,ID3FID_CONTENTTYPE,ID3FN_TEXT,genre);	GET_FIELD_STR(id3Tag,ID3FID_COMMENT,ID3FN_TEXT,comment); 	if(Frame=id3Tag.Find(ID3FID_PICTURE))	{		art.size=Frame->Field(ID3FN_DATA).Size();		FREE_ARRAY(art.data);		if(art.data=(char *)malloc(art.size))			memcpy(art.data,Frame->Field(ID3FN_DATA).GetBinary(),art.size); 		GET_FIELD_STR(id3Tag,ID3FID_PICTURE,ID3FN_MIMETYPE,art.mimeType);		GET_FIELD_STR(id3Tag,ID3FID_PICTURE,ID3FN_DESCRIPTION,art.description);		GET_FIELD_STR(id3Tag,ID3FID_PICTURE,ID3FN_IMAGEFORMAT,art.format);		art.pictureType=Frame->Field(ID3FN_PICTURETYPE).Get();/*	FILE *f=fopen("D:\\prova.jpg","wb");		fwrite(artFile,1,artSize,f);		fclose(f);*/	}	return 0;}