pat.h

Go to the documentation of this file.

/*
 * pat.h: PAT section filter
 *
 * See the main source file 'vdr.c' for copyright information and
 * how to reach the author.
 *
 * $Id: pat.h 5.3 2021/06/21 20:13:55 kls Exp $
 */
 
#ifndef __PAT_H
#define __PAT_H
 
#include <stdint.h>
#include "filter.h"
#include "thread.h"
 
class cPmtPidEntry;
class cPmtSidEntry;
class cPmtSidRequest;
 
class cPatFilter : public cFilter {
private:
  cMutex mutex;
  cTimeMs timer;
  int patVersion;
  cPmtPidEntry *activePmt;
  cList<cPmtPidEntry> pmtPidList;
  cList<cPmtSidEntry> pmtSidList;
  cList<cPmtSidRequest> pmtSidRequestList;
  int source;
  int transponder;
  cSectionSyncer sectionSyncer;
  bool TransponderChanged(void);
  bool PmtPidComplete(int PmtPid);
  void PmtPidReset(int PmtPid);
  bool PmtVersionChanged(int PmtPid, int Sid, int Version, bool SetNewVersion = false);
  int  NumSidRequests(int Sid);
  void SwitchToNextPmtPid(void);
protected:
  virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length);
public:
  cPatFilter(void);
  virtual void SetStatus(bool On);
  void Trigger(int = 0); // triggers reading the PMT PIDs that are currently not requested (dummy parameter for backwards compatibility, value is ignored)
  void Request(int Sid); // requests permanent reading of the PMT PID for this SID
  void Release(int Sid); // releases permanent reading of the PMT PID for this SID
  };
 
void GetCaDescriptors(int Source, int Transponder, int ServiceId, const int *CaSystemIds, cDynamicBuffer &Buffer, int EsPid);
 
int GetCaPids(int Source, int Transponder, int ServiceId, const int *CaSystemIds, int BufSize, int *Pids);
 
int GetPmtPid(int Source, int Transponder, int ServiceId);
 
#endif //__PAT_H