mirror of
https://github.com/VDR4Arch/vdr.git
synced 2023-10-10 13:36:52 +02:00
75 lines
2.9 KiB
C
75 lines
2.9 KiB
C
|
/*
|
||
|
|
* filter.h: Section filter
|
||
|
|
*
|
||
|
|
* See the main source file 'vdr.c' for copyright information and
|
||
|
|
* how to reach the author.
|
||
|
|
*
|
||
|
|
* $Id: filter.h 1.1 2003/12/22 11:41:40 kls Exp $
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __FILTER_H
|
||
|
|
#define __FILTER_H
|
||
|
|
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include "tools.h"
|
||
|
|
|
||
|
|
class cFilterData : public cListObject {
|
||
|
|
public:
|
||
|
|
u_short pid;
|
||
|
|
u_char tid;
|
||
|
|
u_char mask;
|
||
|
|
bool sticky;
|
||
|
|
cFilterData(void);
|
||
|
|
cFilterData(u_short Pid, u_char Tid, u_char Mask, bool Sticky);
|
||
|
|
bool Is(u_short Pid, u_char Tid, u_char Mask);
|
||
|
|
bool Matches(u_short Pid, u_char Tid);
|
||
|
|
};
|
||
|
|
|
||
|
|
class cSectionHandler;
|
||
|
|
|
||
|
|
class cFilter : public cListObject {
|
||
|
|
friend class cSectionHandler;
|
||
|
|
private:
|
||
|
|
cSectionHandler *sectionHandler;
|
||
|
|
cList<cFilterData> data;
|
||
|
|
bool on;
|
||
|
|
protected:
|
||
|
|
cFilter(void);
|
||
|
|
cFilter(u_short Pid, u_char Tid, u_char Mask = 0xFF);
|
||
|
|
virtual ~cFilter();
|
||
|
|
virtual void SetStatus(bool On);
|
||
|
|
///< Turns this filter on or off, depending on the value of On.
|
||
|
|
///< If the filter is turned off, any filter data that has been
|
||
|
|
///< added without the Sticky parameter set to 'true' will be
|
||
|
|
///< automatically deleted. Those parameters that have been added
|
||
|
|
///< with Sticky set to 'true' will be automatically reused when
|
||
|
|
///< SetStatus(true) is called.
|
||
|
|
virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length) = 0;
|
||
|
|
///< Processes the data delivered to this filter.
|
||
|
|
///< Pid and Tid is one of the combinations added to this filter by
|
||
|
|
///< a previous call to Add(), Data is a pointer to Length bytes of
|
||
|
|
///< data. This function will be called from the section handler's
|
||
|
|
///< thread, so it has to use proper locking mechanisms in case it
|
||
|
|
///< accesses any global data. It is guaranteed that if several cFilters
|
||
|
|
///< are attached to the same cSectionHandler, only _one_ of them has
|
||
|
|
///< its Process() function called at any given time. It is allowed
|
||
|
|
///< that more than one cFilter are set up to receive the same Pid/Tid.
|
||
|
|
///< The Process() function must return as soon as possible.
|
||
|
|
int Source(void);
|
||
|
|
///< Returns the source of the data delivered to this filter.
|
||
|
|
int Transponder(void);
|
||
|
|
///< Returns the transponder of the data delivered to this filter.
|
||
|
|
bool Matches(u_short Pid, u_char Tid);
|
||
|
|
///< Indicates whether this filter wants to receive data from the given Pid/Tid.
|
||
|
|
void Set(u_short Pid, u_char Tid, u_char Mask = 0xFF);
|
||
|
|
///< Sets the given filter data by calling Add() with Sticky = true.
|
||
|
|
void Add(u_short Pid, u_char Tid, u_char Mask = 0xFF, bool Sticky = false);
|
||
|
|
///< Adds the given filter data to this filter.
|
||
|
|
///< If Sticky is true, this will survive a status change, otherwise
|
||
|
|
///< it will be automatically deleted.
|
||
|
|
void Del(u_short Pid, u_char Tid, u_char Mask = 0xFF);
|
||
|
|
///< Deletes the given filter data from this filter.
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif //__FILTER_H
|