gps/GPSResources/tcpmp/common/playlist/pls.c

152 lines
3.9 KiB
C
Executable File

/*****************************************************************************
*
* 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
*
* $Id: pls.c 346 2005-11-21 22:20:40Z picard $
*
* The Core Pocket Media Player
* Copyright (c) 2004-2005 Gabor Kovacs
*
****************************************************************************/
#include "../common.h"
#include "pls.h"
typedef struct pls
{
playlist Playlist;
tchar_t File[MAXLINE];
tchar_t Title[MAXLINE];
int Length;
} pls;
static int UpdateStream(pls* p)
{
p->File[0] = 0;
p->Title[0] = 0;
p->Length = -1;
return ERR_NONE;
}
static bool_t Fill(pls* p,tchar_t* Path,int PathLen,tchar_t* DispName,int DispNameLen,tick_t* Length)
{
if (p->Playlist.No >= 0 && p->File[0])
{
tcscpy_s(Path,PathLen,p->File);
tcscpy_s(DispName,DispNameLen,p->Title);
if (p->Length>=0) p->Length *= TICKSPERSEC;
*Length = p->Length;
p->File[0] = 0;
p->Title[0] = 0;
p->Length = -1;
return 1;
}
return 0;
}
static int ReadList(pls* p,tchar_t* Path,int PathLen,tchar_t* DispName,int DispNameLen,tick_t* Length)
{
tchar_t s[MAXLINE];
int No,Len;
int Result = ERR_END_OF_FILE;
while (Result==ERR_END_OF_FILE && ParserLine(&p->Playlist.Parser,s,MAXLINE))
{
tcsuprto(s,'=');
if (stscanf(s,T("FILE%d ="),&No)==1)
{
if (No != p->Playlist.No && Fill(p,Path,PathLen,DispName,DispNameLen,Length))
Result = ERR_NONE;
p->Playlist.No = No;
tcscpy_s(p->File,TSIZEOF(p->File),tcschr(s,'=')+1);
}
else
if (stscanf(s,T("TITLE%d ="),&No)==1)
{
if (No != p->Playlist.No && Fill(p,Path,PathLen,DispName,DispNameLen,Length))
Result = ERR_NONE;
p->Playlist.No = No;
tcscpy_s(p->Title,TSIZEOF(p->Title),tcschr(s,'=')+1);
}
else
if (stscanf(s,T("LENGTH%d = %d"),&No,&Len)==2)
{
if (No != p->Playlist.No && Fill(p,Path,PathLen,DispName,DispNameLen,Length))
Result = ERR_NONE;
p->Playlist.No = No;
p->Length = Len;
}
}
if (Result==ERR_END_OF_FILE && Fill(p,Path,PathLen,DispName,DispNameLen,Length))
Result = ERR_NONE;
return Result;
}
static int WriteList(pls* p, const tchar_t* Path,const tchar_t* DispName,tick_t Length)
{
if (p->Playlist.No<0)
{
p->Playlist.No=0;
StreamPrintf(p->Playlist.Stream,T("[playlist]\n"));
}
if (Path)
{
++p->Playlist.No;
StreamPrintf(p->Playlist.Stream,T("File%d=%s\n"),p->Playlist.No,Path);
if (DispName[0]) StreamPrintf(p->Playlist.Stream,T("Title%d=%s\n"),p->Playlist.No,DispName);
if (Length>=0) StreamPrintf(p->Playlist.Stream,T("Length%d=%d\n"),p->Playlist.No,Length/TICKSPERSEC);
}
else
{
StreamPrintf(p->Playlist.Stream,T("NumberOfEntries=%d\n"),p->Playlist.No);
StreamPrintf(p->Playlist.Stream,T("Version=2\n"));
}
return ERR_NONE;
}
static int Create(pls* p)
{
p->Playlist.UpdateStream = (nodefunc)UpdateStream;
p->Playlist.ReadList = (playreadlist)ReadList;
p->Playlist.WriteList = (playwritelist)WriteList;
return ERR_NONE;
}
static const nodedef PLS =
{
sizeof(pls),
PLS_ID,
PLAYLIST_CLASS,
PRI_DEFAULT+1, //default playlist format (form saving)
(nodecreate)Create,
NULL,
};
void PLS_Init()
{
NodeRegisterClass(&PLS);
}
void PLS_Done()
{
NodeUnRegisterClass(PLS_ID);
}