playlist.h

本程序为ST公司开发的源代码

/**************************************************
 *
 * playlist.h
 *
 * CVS ID:   $Id: playlist.h,v 1.21 2007/11/09 13:38:31 trubac Exp $
 * Author:   Emanuela Zaccaria [EZ] - STM
 * Date:     $Date: 2007/11/09 13:38:31 $
 * Revision: $Revision: 1.21 $
 * 
 * Description:
 * 
 *   Main entry point for the playlist parsing.
 *
 ***************************************************
 * 
 * COPYRIGHT (C) ST Microelectronics  2005
 *            All Rights Reserved
 *
 ****************************************************
 *
 * STM CVS Log:
 *
 * $Log: playlist.h,v $
 * Revision 1.21  2007/11/09 13:38:31  trubac
 * Added checking of playlist item limit into PL_AddFile
 *
 * Revision 1.20  2007/10/26 11:56:52  belardi
 * removed debug option
 *
 * Revision 1.19  2007/09/27 12:26:00  belardi
 * Configure GestGuess from configuration option
 *
 * Revision 1.18  2007/09/21 05:25:54  hara
 * Initial implementation for WMDRM feature into A+.
 *
 * Revision 1.17  2007/02/21 10:13:14  trubac
 * Playlist compares file names stored without extension
 *
 * Revision 1.16  2007/02/16 13:44:58  belardi
 * Changed uint16 to t_duid to remove compiler warning
 *
 * Revision 1.15  2007/02/13 11:02:24  sedmik
 * new bitarray related to palylist shuffle
 *
 * Revision 1.14  2006/12/07 13:19:24  trubac
 * relative indexing of playlist items, pls processing improved "..\"
 *
 * Revision 1.13  2006/12/01 17:38:58  trubac
 * Improved parsing for various text encodings
 *
 * Revision 1.12  2006/12/01 16:04:53  trubac
 * Improved parsing for various text encodings
 *
 * Revision 1.11  2006/11/07 18:57:54  sedmik
 * func prototypes changes
 *
 * Revision 1.10  2006/09/28 11:50:20  zaccaria
 * Define value modified.
 *
 * Revision 1.9  2006/09/25 13:21:04  zaccaria
 * shrink4pls prototype modified
 *
 * Revision 1.8  2006/09/18 09:55:21  belardi
 * Corrected CVS keyword usage
 *
 * Revision 1.7  2006/09/18 09:22:36  belardi
 * Added Log CVS keyword into file header
 *
 * Revision 1.6  2006/09/15 20:17:25  belardi
 * Added Log CVS keyword into file header
 *
 *
 ***************************************************/

#ifndef _PLAYLIST_H_
#define _PLAYLIST_H_

#define UPPER_CASE(c) ((c>96)&&(c<123)) ? (c-32) : c 

//#define PL_printf(a) printf(a);
#define PL_printf(a) ;

#define MAX_PLAYLIST_ITEMS  256

//added 7/8 to be sure we still fit with less than 8
#define PLAYLIST_TRACKS_MARKS_BUFFER_SIZE (MAX_PLAYLIST_ITEMS + 7) / (8 * sizeof(uint8))


//playlist processing transitions
#define PLR_STOP_PLAYBACK               0
#define PLT_STOP_PLAYBACK_CHECK         1
#define PLR_PLAYLIST_INIT               2
#define PLR_PLAYLIST_READ_DATA			3
#define PLR_PLAYLIST_WAIT_DATA_READY    4
#define PLR_PLAYLIST_CHECK_ENCODING		5
#define PLR_PLAYLIST_CHECK_FULL_LINE	6
#define PLR_PLAYLIST_PARSE_M3U			7
#define PLR_PLAYLIST_PARSE_PLS			8
#define PLR_PLAYLIST_PARSE_PATH			9
#define PLR_PLAYLIST_PARSE_FILENAME		10
#if (0 != HAVE_WMDRM)
#define PLR_PLAYLIST_CHECK_OBJECTHANDLE 11
#endif
//state DONE
#define PLR_PLAYLIST_DONE               20
#define PLR_PLAYLIST_ERROR              21

typedef struct 
{
  t_bool  enabled;
  t_bool  set;      //singals when playlist enabled, current playlist was already parsed
  uint32  fileNr;
  t_XItem xfile;
  t_bool  parsed;
  uint16  array_index;
  uint16  prepared_array_index;     //used as result of song selection (forward/backward)
                                    //on unforced song selection, array index cannot be changed at this time
                                    //array index set from prepared_array_index after BOS
  t_duid  device;
  uint16  first_volume_node;
  uint16  array_items;
  t_XItem array[MAX_PLAYLIST_ITEMS];
  uint8   shuffle_marks[PLAYLIST_TRACKS_MARKS_BUFFER_SIZE]; 
  
} t_player_playlist;

// encoding signatures
#define SIG_BE  0xFEFF
#define SIG_LE  0xFFFE
#define SIG_UTF8 0xEFBBBF
#define SIG_SINGB 0x01
#define SIG_UNKNOWN 0

// configuration options
#define BEST_GUESS_DISABLE    0x1f
#define BEST_GUESS_NO_LIMITS  0x00

typedef struct {
    uint8 *buffer;
    int read_stop;  // how many valid bytes are in buffer from beginning
    int read_offset;  // how many bytes were before data in buffer
    int pos;            // distance of current byte from beginning of buffer
    int device;
    int xfile;
    int state_continue;
    int encoding;
    int fsize;
    int eol_pos;
    int nonchar_pos;
    int cur_dir;
    t_XItem orig_dir;
    uint16 volume;
    }t_pl_parser;
    
    
extern t_player_playlist player_playlist;
extern t_pl_parser PL_parser;
    
int PL_GetChar(int *pos, uint8* buffer, int read_stop, int encoding);
int PL_CheckEncoding(uint8* buffer,int read_pos, uint8* read_stop);    
int PL_FindString(uint8* nstr, t_pl_parser *ps,int* pos, int stop_after);
int PL_CompareStrings(t_pl_parser *ps,int stop,t_XItem xitem, t_XNodeType item_type  );
//int PL_CompareFileName(t_pl_parser *ps,t_XItem file);
int PL_IsDigit(int wch);
GRESULT PL_AddFile(int xfile);


#endif