m3u.c

betaplayer的源码 tcpmp的老版本

/*****************************************************************************
 *
 * 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: m3u.c 201 2005-01-15 08:42:20Z picard $
 *
 * BetaPlayer
 * Copyright (c) 2004 Gabor Kovacs
 *
 ****************************************************************************/

#include "../stdafx.h"
#include "m3u.h"

typedef struct m3u
{
	format p;
	stream* Input;
	merge Buffer;
	int No;

} m3u;

static int Enum( m3u* p, int No, datadef* Param )
{
	return NodeEnumType(&No,Param,NodeParams,FormatParams,FormatPlayListParams,NULL);
}

static int Get( m3u* p, int No, void* Data, int Size )
{
	int Result = ERR_INVALID_PARAM;
	switch (No)
	{
	case NODE_ID: GETVALUE(M3U_ID,int); break;
	case FORMAT_EXTS: GETSTRING(T("m3u:P")); break;
	case FORMAT_INPUT: GETVALUE(p->Input,stream*); break;
	}
	return Result;
}

static int Init( m3u* p )
{
	p->No = -1;
	MergeDone(&p->Buffer);
	if (p->Input)
	{
		MergeInit(&p->Buffer);
		MergeAlloc(&p->Buffer,4096,1);
	}
	return ERR_NONE;
}

static int Set( m3u* p, int No, const void* Data, int Size )
{
	int Result = ERR_INVALID_PARAM;
	switch (No)
	{
	case FORMAT_INPUT: SETVALUE(p->Input,stream*,Init(p)); break;
	}
	return Result;
}

static int ReadList( m3u* p,tchar_t* Path,int PathLen,tchar_t* DispName,int DispNameLen,tick_t* Length)
{
	tchar_t s[MAXLINE];

	DispName[0] = 0;
	*Length = -1;

	while (ReadLine(&p->Buffer,p->Input,s,sizeof(s)))
	{
		if (s[0]=='#')
		{
			UpperUntil(s,':');
			if (Scanf(s,T("#EXTINF: %d ,"),Length)==1)
			{
				tchar_t* p = tcschr(s,',');
				if (p++)
				{
					while (*p==' ') ++p;
					TcsNCpy(DispName,p,DispNameLen);
				}
				if (*Length >= 0)
					*Length *= TICKSPERSEC;
			}
		}
		else
		if (s[0])
		{
			TcsNCpy(Path,s,PathLen);
			return ERR_NONE;
		}
	}

	return ERR_END_OF_FILE;
}

static int WriteList( m3u* p, const tchar_t* Path,const tchar_t* DispName,tick_t Length)
{
	if (Path)
	{
		if (p->No++<0)
			StreamPrintf(p->Input,T("#EXTM3U\n"));

		if (Length >= 0 || DispName[0])
			StreamPrintf(p->Input,T("#EXTINF:%d,%s\n"),Length/TICKSPERSEC,DispName);

		StreamPrintf(p->Input,T("%s\n"),Path);
	}
	return ERR_NONE;
}

static m3u M3U;

void M3U_Init()
{
	NodeFill((node*)&M3U.p,sizeof(m3u),(nodeenum)Enum,(nodeget)Get,(nodeset)Set);
	M3U.p.ReadList = (fmtreadlist)ReadList;
	M3U.p.WriteList = (fmtwritelist)WriteList;
	NodeRegister((node*)&M3U.p,PRI_DEFAULT);
}

void M3U_Done()
{
	NodeUnRegister((node*)&M3U.p);
}