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/*
* mplib - a library that enables you to edit ID3 tags
* Copyright (C) 2001,2002 Stefan Podkowinski
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; version 2.1.
*
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#if STDC_HEADERS
# include <stdlib.h>
# include <string.h>
#elif HAVE_STRINGS_H
# include <strings.h>
#endif /*STDC_HEADERS*/
#if HAVE_UNISTD_H
# include <unistd.h>
# include <sys/types.h>
#endif
#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
#include "mplib.h"
#include "xmalloc.h"
/*******************************************************************************************
* Parse functions
*******************************************************************************************/
id3_text_content*
mp_parse_artist(const id3_content* content)
{
return mp_parse_text(content);
}
id3_text_content*
mp_parse_title(const id3_content* content)
{
return mp_parse_text(content);
}
id3_text_content*
mp_parse_album(const id3_content* content)
{
return mp_parse_text(content);
}
id3_text_content*
mp_parse_year(const id3_content* content)
{
return mp_parse_text(content);
}
id3_text_content*
mp_parse_genre(const id3_content* content)
{
return mp_parse_text(content);
}
id3_text_content*
mp_parse_track(const id3_content* content)
{
return mp_parse_text(content);
}
id3_comment_content*
mp_parse_comment(const id3_content* content)
{
id3_comment_content* cc;
int i, e;
if(!content || !content->data)
{
errno = MP_EERROR;
return NULL;
}
if(content->encrypted)
{
errno = MP_EFENCR;
return NULL;
}
if(content->compressed)
{
errno = MP_EFCOMPR;
return NULL;
}
cc = XMALLOCD0(id3_comment_content, "mp_parse_comment:cc");
e = content->data[0];
if(e >= ISO_8859_1 && e <= UTF8) cc->encoding = e;
else cc->encoding = 0;
cc->language = xmallocd(4, "mp_parse_comment:cc->language");
cc->language[0] = content->data[1];
cc->language[1] = content->data[2];
cc->language[2] = content->data[3];
cc->language[3] = 0;
if(content->data[4]) /* short descr. */
{
i = strlen(content->data + 4) + 1;
cc->short_descr = xmallocd(i, "mp_parse_comment:cc->short_descr");
strncpy(cc->short_descr, content->data + 4, i);
}
else
{
cc->short_descr = NULL;
i = 1;
}
cc->text = xmallocd(content->length - 4 - i + 1, "mp_parse_comment:cc->text");
memcpy(cc->text, content->data + 4 + i, content->length - 4 - i);
cc->text[content->length - 4 - i] = 0;
return cc;
}
id3_text_content*
mp_parse_text(const id3_content* content)
{
id3_text_content* tc;
int e;
if(!content || !content->data)
{
errno = MP_EERROR;
return NULL;
}
if(content->encrypted)
{
errno = MP_EFENCR;
return NULL;
}
if(content->compressed)
{
errno = MP_EFCOMPR;
return NULL;
}
tc = XMALLOCD0(id3_text_content, "mp_parse_text:tc");
tc->text = xmallocd(content->length, "mp_parse_text:tc->text");
e = content->data[0];
if(e >= ISO_8859_1 && e <= UTF8) tc->encoding = e;
else tc->encoding = 0;
memcpy(tc->text, content->data + 1, content->length - 1);
tc->text[content->length - 1] = 0;
/* XXX multiple entries */
return tc;
}
/*******************************************************************************************
* Assemble functions
*******************************************************************************************/
id3_content*
mp_assemble_artist_content(const char* text, id3_encoding enc)
{
return mp_assemble_text_content(text, enc);
}
id3_content*
mp_assemble_title_content(const char* text, id3_encoding enc)
{
return mp_assemble_text_content(text, enc);
}
id3_content*
mp_assemble_album_content(const char* text, id3_encoding enc)
{
return mp_assemble_text_content(text, enc);
}
id3_content*
mp_assemble_year_content(const char* text, id3_encoding enc)
{
return mp_assemble_text_content(text, enc);
}
id3_content*
mp_assemble_genre_content(const char* text, id3_encoding enc)
{
return mp_assemble_text_content(text, enc);
}
id3_content*
mp_assemble_text_content(const char* text, id3_encoding enc)
{
id3_content *ret;
if(!text) return NULL;
ret = XMALLOCD0(id3_content, "mp_assemble_text_content:ret");
ret->length = strlen(text) + 1;
ret->data = xmallocd(ret->length, "mp_asseble_text_content:ret->data");
ret->data[0] = enc;
strncpy(ret->data + 1, text, strlen(text));
return ret;
}
id3_content*
mp_assemble_comment_content(const char* text, const char* short_descr, id3_encoding enc, const char* lang)
{
id3_content *ret;
if(!text) return NULL;
ret = XMALLOCD0(id3_content, "mp_assemble_comment_content:ret");
ret->length = strlen(text) + 5;
if(short_descr) ret->length += strlen(short_descr);
ret->data = xmallocd(ret->length, "mp_assemble_comment_content:ret->data");
ret->data[0] = enc;
if(lang && strlen(lang) == 3)
{
ret->data[1] = lang[0];
ret->data[2] = lang[1];
ret->data[3] = lang[2];
}
else
{
ret->data[1] = 'X';
ret->data[2] = 'X';
ret->data[3] = 'X';
}
if(short_descr) strcpy(ret->data + 4, short_descr);
else ret->data[4] = 0;
if(short_descr) strncpy(ret->data + 5 + strlen(short_descr), text, strlen(text));
else strncpy(ret->data + 5, text, strlen(text));
return ret;
}
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