dvbtime.h

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#ifndef __LIB_DVB_DVBTIME_H_
#define __LIB_DVB_DVBTIME_H_
 
#ifndef SWIG
 
#include <lib/base/eerror.h>
#include <lib/dvb/esection.h>
#include <lib/dvb/atsc.h>
#include <dvbsi++/time_date_section.h>
 
class eDVBChannel;
 
inline int fromBCD(int bcd)
{
  if ((bcd&0xF0)>=0xA0)
    return -1;
  if ((bcd&0xF)>=0xA)
    return -1;
  return ((bcd&0xF0)>>4)*10+(bcd&0xF);
}
 
inline int toBCD(int dec)
{
  if (dec >= 100)
    return -1;
  return int(dec/10)*0x10 + dec%10;
}
 
time_t parseDVBtime(uint16_t mjd, uint32_t stime_bcd);
time_t parseDVBtime(const uint8_t* data);
time_t parseDVBtime(const uint8_t* data, uint16_t *hash);
 
class TimeTable : public eGTable
{
protected:
  eDVBChannel *chan;
  ePtr<iDVBDemux> demux;
  ePtr<eTimer> m_interval_timer;
  void ready(int);
  int update_count;
public:
  TimeTable(eDVBChannel *chan, int update_count=0);
  void startTable(eDVBTableSpec spec);
  void startTimer(int interval);
  int getUpdateCount() { return update_count; }
  virtual void start() = 0;
};
 
class TDT: public TimeTable
{
  int createTable(unsigned int nr, const __u8 *data, unsigned int max);
public:
  TDT(eDVBChannel *chan, int update_count=0);
  void start();
};
 
class STT: public TimeTable
{
  int createTable(unsigned int nr, const __u8 *data, unsigned int max);
public:
  STT(eDVBChannel *chan, int update_count=0);
  void start();
};
 
#endif  // SWIG
 
class eDVBLocalTimeHandler: public sigc::trackable
{
  DECLARE_REF(eDVBLocalTimeHandler);
  struct channel_data
  {
    ePtr<TimeTable> timetable;
    ePtr<eDVBChannel> channel;
    ePtr<eConnection> m_stateChangedConn;
    int m_prevChannelState;
  };
  bool m_use_dvb_time;
  ePtr<eTimer> m_updateNonTunedTimer;
  friend class TDT;
  friend class STT;
  friend class TimeTable;
  std::map<iDVBChannel*, channel_data> m_knownChannels;
  std::map<eDVBChannelID,int> m_timeOffsetMap;
  ePtr<eConnection> m_chanAddedConn;
  bool m_time_ready;
  int m_time_difference;
  int m_last_tp_time_difference;
  void DVBChannelAdded(eDVBChannel*);
  void DVBChannelStateChanged(iDVBChannel*);
  void readTimeOffsetData(const char*);
  void writeTimeOffsetData(const char*);
  void updateTime(time_t tp_time, eDVBChannel*, int updateCount);
  void updateNonTuned();
  static eDVBLocalTimeHandler *instance;
#ifdef SWIG
  eDVBLocalTimeHandler();
  ~eDVBLocalTimeHandler();
#endif
public:
#ifndef SWIG
  eDVBLocalTimeHandler();
  ~eDVBLocalTimeHandler();
#endif
  bool getUseDVBTime() { return m_use_dvb_time; }
  void setUseDVBTime(bool b);
  void syncDVBTime();
  PSignal0<void> m_timeUpdated;
  time_t nowTime() const { return m_time_ready ? ::time(0)+m_time_difference : -1; }
  bool ready() const { return m_time_ready; }
  static eDVBLocalTimeHandler *getInstance() { return instance; }
};
 
#endif // __LIB_DVB_DVBTIME_H_