id3tag.h

本程序为ST公司开发的源代码

/**************************************************
 *
 * id3tag.h
 *
 * CVS ID:   $Id: id3tag.h,v 1.15 2007/09/11 16:00:52 belardi Exp $
 * Author:   Jiri Sedmik [JS] - STM
 * Date:     $Date: 2007/09/11 16:00:52 $
 * Revision: $Revision: 1.15 $
 *
 * Description:
 *
 *
 ***************************************************
 *
 * COPYRIGHT (C) ST Microelectronics  2005
 *            All Rights Reserved
 *
 ****************************************************
 *
 * STM CVS Log:
 *
 * $Log: id3tag.h,v $
 * Revision 1.15  2007/09/11 16:00:52  belardi
 * removed unused struct and comments
 *
 * Revision 1.14  2007/09/10 17:59:15  trubac
 * using modified macro names for MAX_TEXT_SIZE
 *
 * Revision 1.13  2007/06/29 13:18:13  belardi
 * Added support for Track Number in ID3 v1.1 and v2.x
 *
 * Revision 1.12  2006/10/17 09:54:46  trubac
 * new id3 tag strings handling + new tag infos in song_info
 *
 * Revision 1.11  2006/09/18 09:55:22  belardi
 * Corrected CVS keyword usage
 *
 * Revision 1.10  2006/09/18 09:23:18  belardi
 * Added Log CVS keyword into file header
 *
 *
 ***************************************************/
#ifndef _ID3TAG_H_
#define _ID3TAG_H_

#include "xfile.h"
#include "tag.h"

#define ID3_BUFFER_LENGTH       TAG_BUFFER_LENGTH       //[LL] replaced (0x800)

/* ID3 tag V1 definitions */
#define ID3_TAG_V1  0x544147    /* "TAG" representation in hex */

#define ID3_TAG_V1_ITEM_LENGTH    (0x1e)
#define ID3_TAG_V1_TITLE_POSITION 	(0x00 + 0x03)		/* 3 is lenght of ID3 identifier */
#define ID3_TAG_V1_ARTIST_POSITION 	(ID3_TAG_V1_TITLE_POSITION + ID3_TAG_V1_ITEM_LENGTH)
#define ID3_TAG_V1_ALBUM_POSITION 	(ID3_TAG_V1_ARTIST_POSITION + ID3_TAG_V1_ITEM_LENGTH)
#define ID3_TAG_V1_YEAR_POSITION 	(ID3_TAG_V1_ALBUM_POSITION + ID3_TAG_V1_ITEM_LENGTH)
#define ID3_TAG_V1_COMMENT_POSITION (ID3_TAG_V1_YEAR_POSITION + 0x04)  //year len is 4 chars
#define ID3_TAG_V1_GENRE_POSITION 	(ID3_TAG_V1_COMMENT_POSITION + ID3_TAG_V1_ITEM_LENGTH)

#define ISO8859   (0)

/* ID3 tag V2 definitions */
#define ID3_TAG_V2              0x494433    /* "ID3" representation in hex */
#define ID3_TAG_V2_MAX_NB_FIELDS      6 /* how many headers have to be found */

#define ID3_TAG_V2_VERSION_POSITION     (0x03)
#define ID3_TAG_V2_FLAGS_POSITION       (0x05)
#define ID3_TAG_V2_LENGTH_POSITION      (0x06)
#define ID3_TAG_V2_HEADER_LENGTH      10  /* ID3 Tag Header length */

//id3v2.2
#define TXT_TAL   0x54414C    /* Album/Movie/Show title */
#define TXT_TT2   0x545432    /* Title/Songname/Content description */
#define TXT_TP1   0x545031    /* Lead artist(s)/Lead performer(s)/Soloist(s)/Performing group */
#define TXT_COM   0x434F4D    /* Comments */
#define TXT_TYE   0x545945    /* Year */
#define TXT_TCO   0x54434F    /* Content type */
#define TXT_TRK   0x54524B    /* Track number*/

//id3v2.3 or v2.4
#define TXT_TALB  0x54414C42    /* Album name */
#define TXT_TIT2  0x54495432    /* Song title */
#define TXT_TPE1  0x54504531    /* Artist name */
#define TXT_COMM  0x434F4D4D    /* Comments */
#define TXT_TYER  0x54594552    /* Year */
#define TXT_TCON  0x54434F4E    /* Content type */
#define TXT_APIC  0x41504943    /* Picture */
#define TXT_TRCK  0x5452434B    /* Track number */

typedef enum
{
  ID3_V2_OLD_STYLE,
  ID3_V2_NEW_STYLE
} FRAME_NAMES_STYLE;

typedef enum
{
  ID3_NOT_PRESENT = 0,
  ID3_V1 = 1,
  ID3_V22 = 2,
  ID3_V23 = 4,
  ID3_V24 = 8
} ID3_VERSION;

typedef enum
{
  ID32_FIND_FRAME,
  ID32_READ_DATA,
  ID32_FRAME_SKIP,
  ID32_TERMINATE
} ID32_PROCESSING_ENUM;

GRESULT GetBitRate(t_SongInfos *songi);
int ID3_TagDecode(t_SongInfos *song_info, uint32 count_down);
int ID3_ExtractID3v1(t_SongInfos *song_info, uint8 *buffer);
int ID3_ExtractID3v2(t_SongInfos *song_info, uint8 *buffer, uint32 count_down);
//uint16 id3_v1_len(uint8 * buffer, uint16 maxsize);          //[LL] moved to tag.h
#endif