vdr  2.2.0
Protected Member Functions | Private Attributes | Friends | List of all members
cFilter Class Referenceabstract

#include <filter.h>

Protected Member Functions

 cFilter (void)
 
 cFilter (u_short Pid, u_char Tid, u_char Mask=0xFF)
 
virtual ~cFilter ()
 
virtual void SetStatus (bool On)
 
virtual void Process (u_short Pid, u_char Tid, const u_char *Data, int Length)=0
 
int Source (void)
 
int Transponder (void)
 
const cChannelChannel (void)
 
bool Matches (u_short Pid, u_char Tid)
 
void Set (u_short Pid, u_char Tid, u_char Mask=0xFF)
 
void Add (u_short Pid, u_char Tid, u_char Mask=0xFF, bool Sticky=false)
 
void Del (u_short Pid, u_char Tid, u_char Mask=0xFF)
 

Private Attributes

cSectionHandlersectionHandler
 
cList< cFilterDatadata
 
bool on
 

Friends

class cSectionHandler
 

Additional Inherited Members

- Public Member Functions inherited from cListObject
 cListObject (void)
 
virtual ~cListObject ()
 
virtual int Compare (const cListObject &ListObject) const
 
void Append (cListObject *Object)
 
void Insert (cListObject *Object)
 
void Unlink (void)
 
int Index (void) const
 
cListObjectPrev (void) const
 
cListObjectNext (void) const
 

Detailed Description

Definition at line 41 of file filter.h.

Constructor & Destructor Documentation

cFilter::cFilter ( void  )
protected

Definition at line 70 of file filter.c.

cFilter::cFilter ( u_short  Pid,
u_char  Tid,
u_char  Mask = 0xFF 
)
protected

Definition at line 76 of file filter.c.

cFilter::~cFilter ( )
protectedvirtual

Definition at line 83 of file filter.c.

Member Function Documentation

void cFilter::Add ( u_short  Pid,
u_char  Tid,
u_char  Mask = 0xFF,
bool  Sticky = false 
)
protected

Adds the given filter data to this filter.

If Sticky is true, this will survive a status change, otherwise it will be automatically deleted.

Definition at line 142 of file filter.c.

Referenced by cHdffSetupPage::BuildVideoConversionItem(), and cHdffSetupPage::cHdffSetupPage().

const cChannel * cFilter::Channel ( void  )
protected

Returns the channel of the data delivered to this filter.

Definition at line 99 of file filter.c.

Referenced by cSdtFilter::Process(), and cNitFilter::Process().

void cFilter::Del ( u_short  Pid,
u_char  Tid,
u_char  Mask = 0xFF 
)
protected

Deletes the given filter data from this filter.

Definition at line 150 of file filter.c.

References cListObject::Next().

bool cFilter::Matches ( u_short  Pid,
u_char  Tid 
)
protected

Indicates whether this filter wants to receive data from the given Pid/Tid.

Definition at line 126 of file filter.c.

References cListObject::Next().

virtual void cFilter::Process ( u_short  Pid,
u_char  Tid,
const u_char *  Data,
int  Length 
)
protectedpure virtual

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.

Implemented in cNitFilter, cPatFilter, cSdtFilter, and cEitFilter.

void cFilter::Set ( u_short  Pid,
u_char  Tid,
u_char  Mask = 0xFF 
)
protected

Sets the given filter data by calling Add() with Sticky = true.

Definition at line 137 of file filter.c.

Referenced by cNitFilter::cNitFilter(), and cSdtFilter::cSdtFilter().

void cFilter::SetStatus ( bool  On)
protectedvirtual

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.

Reimplemented in cNitFilter, cPatFilter, and cSdtFilter.

Definition at line 104 of file filter.c.

References cListObject::Next(), and cFilterData::sticky.

Referenced by cSectionHandler::Attach(), cSectionHandler::Detach(), cSdtFilter::SetStatus(), cPatFilter::SetStatus(), and cNitFilter::SetStatus().

int cFilter::Source ( void  )
protected

Returns the source of the data delivered to this filter.

Definition at line 89 of file filter.c.

Referenced by cPatFilter::MakePmtId(), cSdtFilter::Process(), cNitFilter::Process(), and cSdtFilter::Trigger().

int cFilter::Transponder ( void  )
protected

Returns the transponder of the data delivered to this filter.

Definition at line 94 of file filter.c.

Referenced by cPatFilter::MakePmtId(), cSdtFilter::Process(), and cNitFilter::Process().

Friends And Related Function Documentation

friend class cSectionHandler
friend

Definition at line 42 of file filter.h.

Member Data Documentation

cList<cFilterData> cFilter::data
private

Definition at line 45 of file filter.h.

bool cFilter::on
private

Definition at line 46 of file filter.h.

cSectionHandler* cFilter::sectionHandler
private

Definition at line 44 of file filter.h.

Referenced by cSectionHandler::Attach(), and cSectionHandler::Detach().


The documentation for this class was generated from the following files: