/*
* libid3tag - ID3 tag manipulation library
* Copyright (C) 2000-2004 Underbit Technologies, Inc.
*
* 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
*
* If you would like to negotiate alternate licensing terms, you may do
* so by contacting: Underbit Technologies, Inc. <info@underbit.com>
*
* $Id: id3tag.h,v 1.17 2004/01/23 23:22:46 rob Exp $
*/
# ifndef LIBID3TAG_ID3TAG_H
# define LIBID3TAG_ID3TAG_H
# ifdef __cplusplus
extern "C" {
# endif
# define ID3_TAG_VERSION 0x0400
# define ID3_TAG_VERSION_MAJOR(x) (((x) >> 8) & 0xff)
# define ID3_TAG_VERSION_MINOR(x) (((x) >> 0) & 0xff)
typedef unsigned char id3_byte_t;
typedef unsigned long id3_length_t;
typedef unsigned long id3_ucs4_t;
typedef unsigned char id3_latin1_t;
typedef unsigned short id3_utf16_t;
typedef signed char id3_utf8_t;
struct id3_tag {
unsigned int refcount;
unsigned int version;
int flags;
int extendedflags;
int restrictions;
int options;
unsigned int nframes;
struct id3_frame **frames;
id3_length_t paddedsize;
};
# define ID3_TAG_QUERYSIZE 10
/* ID3v1 field frames */
# define ID3_FRAME_TITLE "TIT2"
# define ID3_FRAME_ARTIST "TPE1"
# define ID3_FRAME_ALBUM "TALB"
# define ID3_FRAME_TRACK "TRCK"
# define ID3_FRAME_YEAR "TDRC"
# define ID3_FRAME_GENRE "TCON"
# define ID3_FRAME_COMMENT "COMM"
/* special frames */
# define ID3_FRAME_OBSOLETE "ZOBS" /* with apologies to the French */
/* tag flags */
enum {
ID3_TAG_FLAG_UNSYNCHRONISATION = 0x80,
ID3_TAG_FLAG_EXTENDEDHEADER = 0x40,
ID3_TAG_FLAG_EXPERIMENTALINDICATOR = 0x20,
ID3_TAG_FLAG_FOOTERPRESENT = 0x10,
ID3_TAG_FLAG_KNOWNFLAGS = 0xf0
};
/* tag extended flags */
enum {
ID3_TAG_EXTENDEDFLAG_TAGISANUPDATE = 0x40,
ID3_TAG_EXTENDEDFLAG_CRCDATAPRESENT = 0x20,
ID3_TAG_EXTENDEDFLAG_TAGRESTRICTIONS = 0x10,
ID3_TAG_EXTENDEDFLAG_KNOWNFLAGS = 0x70
};
/* tag restrictions */
enum {
ID3_TAG_RESTRICTION_TAGSIZE_MASK = 0xc0,
ID3_TAG_RESTRICTION_TAGSIZE_128_FRAMES_1_MB = 0x00,
ID3_TAG_RESTRICTION_TAGSIZE_64_FRAMES_128_KB = 0x40,
ID3_TAG_RESTRICTION_TAGSIZE_32_FRAMES_40_KB = 0x80,
ID3_TAG_RESTRICTION_TAGSIZE_32_FRAMES_4_KB = 0xc0
};
enum {
ID3_TAG_RESTRICTION_TEXTENCODING_MASK = 0x20,
ID3_TAG_RESTRICTION_TEXTENCODING_NONE = 0x00,
ID3_TAG_RESTRICTION_TEXTENCODING_LATIN1_UTF8 = 0x20
};
enum {
ID3_TAG_RESTRICTION_TEXTSIZE_MASK = 0x18,
ID3_TAG_RESTRICTION_TEXTSIZE_NONE = 0x00,
ID3_TAG_RESTRICTION_TEXTSIZE_1024_CHARS = 0x08,
ID3_TAG_RESTRICTION_TEXTSIZE_128_CHARS = 0x10,
ID3_TAG_RESTRICTION_TEXTSIZE_30_CHARS = 0x18
};
enum {
ID3_TAG_RESTRICTION_IMAGEENCODING_MASK = 0x04,
ID3_TAG_RESTRICTION_IMAGEENCODING_NONE = 0x00,
ID3_TAG_RESTRICTION_IMAGEENCODING_PNG_JPEG = 0x04
};
enum {
ID3_TAG_RESTRICTION_IMAGESIZE_MASK = 0x03,
ID3_TAG_RESTRICTION_IMAGESIZE_NONE = 0x00,
ID3_TAG_RESTRICTION_IMAGESIZE_256_256 = 0x01,
ID3_TAG_RESTRICTION_IMAGESIZE_64_64 = 0x02,
ID3_TAG_RESTRICTION_IMAGESIZE_64_64_EXACT = 0x03
};
/* library options */
enum {
ID3_TAG_OPTION_UNSYNCHRONISATION = 0x0001, /* use unsynchronisation */
ID3_TAG_OPTION_COMPRESSION = 0x0002, /* use compression */
ID3_TAG_OPTION_CRC = 0x0004, /* use CRC */
ID3_TAG_OPTION_APPENDEDTAG = 0x0010, /* tag will be appended */
ID3_TAG_OPTION_FILEALTERED = 0x0020, /* audio data was altered */
ID3_TAG_OPTION_ID3V1 = 0x0100 /* render ID3v1/ID3v1.1 tag */
};
struct id3_frame {
char id[5];
char const *description;
unsigned int refcount;
int flags;
int group_id;
int encryption_method;
id3_byte_t *encoded;
id3_length_t encoded_length;
id3_length_t decoded_length;
unsigned int nfields;
union id3_field *fields;
};
enum {
/* frame status flags */
ID3_FRAME_FLAG_TAGALTERPRESERVATION = 0x4000,
ID3_FRAME_FLAG_FILEALTERPRESERVATION = 0x2000,
ID3_FRAME_FLAG_READONLY = 0x1000,
ID3_FRAME_FLAG_STATUSFLAGS = 0xff00,
/* frame format flags */
ID3_FRAME_FLAG_GROUPINGIDENTITY = 0x0040,
ID3_FRAME_FLAG_COMPRESSION = 0x0008,
ID3_FRAME_FLAG_ENCRYPTION = 0x0004,
ID3_FRAME_FLAG_UNSYNCHRONISATION = 0x0002,
ID3_FRAME_FLAG_DATALENGTHINDICATOR = 0x0001,
ID3_FRAME_FLAG_FORMATFLAGS = 0x00ff,
ID3_FRAME_FLAG_KNOWNFLAGS = 0x704f
};
enum id3_field_type {
ID3_FIELD_TYPE_TEXTENCODING,
ID3_FIELD_TYPE_LATIN1,
ID3_FIELD_TYPE_LATIN1FULL,
ID3_FIELD_TYPE_LATIN1LIST,
ID3_FIELD_TYPE_STRING,
ID3_FIELD_TYPE_STRINGFULL,
ID3_FIELD_TYPE_STRINGLIST,
ID3_FIELD_TYPE_LANGUAGE,
ID3_FIELD_TYPE_FRAMEID,
ID3_FIELD_TYPE_DATE,
ID3_FIELD_TYPE_INT8,
ID3_FIELD_TYPE_INT16,
ID3_FIELD_TYPE_INT24,
ID3_FIELD_TYPE_INT32,
ID3_FIELD_TYPE_INT32PLUS,
ID3_FIELD_TYPE_BINARYDATA
};
enum id3_field_textencoding {
ID3_FIELD_TEXTENCODING_ISO_8859_1 = 0x00,
ID3_FIELD_TEXTENCODING_UTF_16 = 0x01,
ID3_FIELD_TEXTENCODING_UTF_16BE = 0x02,
ID3_FIELD_TEXTENCODING_UTF_8 = 0x03
};
union id3_field {
enum id3_field_type type;
struct {
enum id3_field_type type;
signed long value;
} number;
struct {
enum id3_field_type type;
id3_latin1_t *ptr;
} latin1;
struct {
enum id3_field_type type;
unsigned int nstrings;
id3_latin1_t **strings;
} latin1list;
struct {
enum id3_field_type type;
id3_ucs4_t *ptr;
} string;
struct {
enum id3_field_type type;
unsigned int nstrings;
id3_ucs4_t **strings;
} stringlist;
struct {
enum id3_field_type type;
char value[9];
} immediate;
struct {
enum id3_field_type type;
id3_byte_t *data;
id3_length_t length;
} binary;
};
/* file interface */
enum id3_file_mode {
ID3_FILE_MODE_READONLY = 0,
ID3_FILE_MODE_READWRITE
};
struct id3_file *id3_file_open(char const *, enum id3_file_mode);
struct id3_file *id3_file_fdopen(int, enum id3_file_mode);
int id3_file_close(struct id3_file *);
struct id3_tag *id3_file_tag(struct id3_file const *);
int id3_file_update(struct id3_file *);
/* tag interface */
struct id3_tag *id3_tag_new(void);
void id3_tag_delete(struct id3_tag *);
unsigned int id3_tag_version(struct id3_tag const *);
int id3_tag_options(struct id3_tag *, int, int);
void id3_tag_setlength(struct id3_tag *, id3_length_t);
void id3_tag_clearframes(struct id3_tag *);
int id3_tag_attachframe(struct id3_tag *, struct id3_frame *);
int id3_tag_detachframe(struct id3_tag *, struct id3_frame *);
struct id3_frame *id3_tag_findframe(struct id3_tag const *,
char const *, unsigned int);
signed long id3_tag_query(id3_byte_t const *, id3_length_t);
struct id3_tag *id3_tag_parse(id3_byte_t const *, id3_length_t);
id3_length_t id3_tag_render(struct id3_tag const *, id3_byte_t *);
/* frame interface */
struct id3_frame *id3_frame_new(char const *);
void id3_frame_delete(struct id3_frame *);
union id3_field *id3_frame_field(struct id3_frame const *, unsigned int);
/* field interface */
enum id3_field_type id3_field_type(union id3_field const *);
int id3_field_setint(union id3_field *, signed long);
int id3_field_settextencoding(union id3_field *, enum id3_field_textencoding);
int id3_field_setstrings(union id3_field *, unsigned int, id3_ucs4_t **);
int id3_field_addstring(union id3_field *, id3_ucs4_t const *);
int id3_field_setlanguage(union id3_field *, char const *);
int id3_field_setlatin1(union id3_field *, id3_latin1_t const *);
int id3_field_setfulllatin1(union id3_field *, id3_latin1_t const *);
int id3_field_setstring(union id3_field *, id3_ucs4_t const *);
int id3_field_setfullstring(union id3_field *, id3_ucs4_t const *);
int id3_field_setframeid(union id3_field *, char const *);
int id3_field_setbinarydata(union id3_field *,
id3_byte_t const *, id3_length_t);
signed long id3_field_getint(union id3_field const *);
enum id3_field_textencoding id3_field_gettextencoding(union id3_field const *);
id3_latin1_t const *id3_field_getlatin1(union id3_field const *);
id3_latin1_t const *id3_field_getfulllatin1(union id3_field const *);
id3_ucs4_t const *id3_field_getstring(union id3_field const *);
id3_ucs4_t const *id3_field_getfullstring(union id3_field const *);
unsigned int id3_field_getnstrings(union id3_field const *);
id3_ucs4_t const *id3_field_getstrings(union id3_field const *,
unsigned int);
char const *id3_field_getframeid(union id3_field const *);
id3_byte_t const *id3_field_getbinarydata(union id3_field const *,
id3_length_t *);
/* genre interface */
id3_ucs4_t const *id3_genre_index(unsigned int);
id3_ucs4_t const *id3_genre_name(id3_ucs4_t const *);
int id3_genre_number(id3_ucs4_t const *);
/* ucs4 interface */
id3_latin1_t *id3_ucs4_latin1duplicate(id3_ucs4_t const *);
id3_utf16_t *id3_ucs4_utf16duplicate(id3_ucs4_t const *);
id3_utf8_t *id3_ucs4_utf8duplicate(id3_ucs4_t const *);
void id3_ucs4_putnumber(id3_ucs4_t *, unsigned long);
unsigned long id3_ucs4_getnumber(id3_ucs4_t const *);
/* latin1/utf16/utf8 interfaces */
id3_ucs4_t *id3_latin1_ucs4duplicate(id3_latin1_t const *);
id3_ucs4_t *id3_utf16_ucs4duplicate(id3_utf16_t const *);
id3_ucs4_t *id3_utf8_ucs4duplicate(id3_utf8_t const *);
/* version interface */
# define ID3_VERSION_MAJOR 0
# define ID3_VERSION_MINOR 15
# define ID3_VERSION_PATCH 1
# define ID3_VERSION_EXTRA " (beta)"
# define ID3_VERSION_STRINGIZE(str) #str
# define ID3_VERSION_STRING(num) ID3_VERSION_STRINGIZE(num)
# define ID3_VERSION ID3_VERSION_STRING(ID3_VERSION_MAJOR) "." \
ID3_VERSION_STRING(ID3_VERSION_MINOR) "." \
ID3_VERSION_STRING(ID3_VERSION_PATCH) \
ID3_VERSION_EXTRA
# define ID3_PUBLISHYEAR "2000-2004"
# define ID3_AUTHOR "Underbit Technologies, Inc."
# define ID3_EMAIL "info@underbit.com"
extern char const id3_version[];
extern char const id3_copyright[];
extern char const id3_author[];
extern char const id3_build[];
# ifdef __cplusplus
}
# endif
# endif
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