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/*
* epg.h: Electronic Program Guide
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* Original version (as used in VDR before 1.3.0) written by
* Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
*
* $Id: epg.h 2.0 2006/10/07 13:47:19 kls Exp $
*/
#ifndef __EPG_H
#define __EPG_H
#include "channels.h"
#include "thread.h"
#include "tools.h"
#define MAXEPGBUGFIXLEVEL 3
enum eDumpMode { dmAll, dmPresent, dmFollowing, dmAtTime };
struct tComponent {
uchar stream;
uchar type;
char language[MAXLANGCODE2];
char *description;
cString ToString(void);
bool FromString(const char *s);
};
class cComponents {
private:
int numComponents;
tComponent *components;
void Realloc(int Index);
public:
cComponents(void);
~cComponents(void);
int NumComponents(void) const { return numComponents; }
void SetComponent(int Index, const char *s);
void SetComponent(int Index, uchar Stream, uchar Type, const char *Language, const char *Description);
tComponent *Component(int Index) const { return (Index < numComponents) ? &components[Index] : NULL; }
tComponent *GetComponent(int Index, uchar Stream, uchar Type); // Gets the Index'th component of Stream and Type, skipping other components
// In case of an audio stream the 'type' check actually just distinguishes between "normal" and "Dolby Digital"
};
class cSchedule;
typedef u_int32_t tEventID;
class cEvent : public cListObject {
friend class cSchedule;
private:
cSchedule *schedule; // The Schedule this event belongs to
tEventID eventID; // Event ID of this event
uchar tableID; // Table ID this event came from
uchar version; // Version number of section this event came from
int runningStatus; // 0=undefined, 1=not running, 2=starts in a few seconds, 3=pausing, 4=running
char *title; // Title of this event
char *shortText; // Short description of this event (typically the episode name in case of a series)
char *description; // Description of this event
cComponents *components; // The stream components of this event
time_t startTime; // Start time of this event
int duration; // Duration of this event in seconds
time_t vps; // Video Programming Service timestamp (VPS, aka "Programme Identification Label", PIL)
time_t seen; // When this event was last seen in the data stream
public:
cEvent(tEventID EventID);
~cEvent();
virtual int Compare(const cListObject &ListObject) const;
tChannelID ChannelID(void) const;
const cSchedule *Schedule(void) const { return schedule; }
tEventID EventID(void) const { return eventID; }
uchar TableID(void) const { return tableID; }
uchar Version(void) const { return version; }
int RunningStatus(void) const { return runningStatus; }
const char *Title(void) const { return title; }
const char *ShortText(void) const { return shortText; }
const char *Description(void) const { return description; }
const cComponents *Components(void) const { return components; }
time_t StartTime(void) const { return startTime; }
time_t EndTime(void) const { return startTime + duration; }
int Duration(void) const { return duration; }
time_t Vps(void) const { return vps; }
time_t Seen(void) const { return seen; }
bool SeenWithin(int Seconds) const { return time(NULL) - seen < Seconds; }
bool HasTimer(void) const;
bool IsRunning(bool OrAboutToStart = false) const;
cString GetDateString(void) const;
cString GetTimeString(void) const;
cString GetEndTimeString(void) const;
cString GetVpsString(void) const;
void SetEventID(tEventID EventID);
void SetTableID(uchar TableID);
void SetVersion(uchar Version);
void SetRunningStatus(int RunningStatus, cChannel *Channel = NULL);
void SetTitle(const char *Title);
void SetShortText(const char *ShortText);
void SetDescription(const char *Description);
void SetComponents(cComponents *Components); // Will take ownership of Components!
void SetStartTime(time_t StartTime);
void SetDuration(int Duration);
void SetVps(time_t Vps);
void SetSeen(void);
cString ToDescr(void) const;
void Dump(FILE *f, const char *Prefix = "", bool InfoOnly = false) const;
bool Parse(char *s);
static bool Read(FILE *f, cSchedule *Schedule);
void FixEpgBugs(void);
};
class cSchedules;
class cSchedule : public cListObject {
private:
tChannelID channelID;
cList<cEvent> events;
cHash<cEvent> eventsHashID;
cHash<cEvent> eventsHashStartTime;
bool hasRunning;
time_t modified;
time_t presentSeen;
public:
cSchedule(tChannelID ChannelID);
tChannelID ChannelID(void) const { return channelID; }
time_t Modified(void) const { return modified; }
time_t PresentSeen(void) const { return presentSeen; }
bool PresentSeenWithin(int Seconds) const { return time(NULL) - presentSeen < Seconds; }
void SetModified(void) { modified = time(NULL); }
void SetPresentSeen(void) { presentSeen = time(NULL); }
void SetRunningStatus(cEvent *Event, int RunningStatus, cChannel *Channel = NULL);
void ClrRunningStatus(cChannel *Channel = NULL);
void ResetVersions(void);
void Sort(void);
void DropOutdated(time_t SegmentStart, time_t SegmentEnd, uchar TableID, uchar Version);
void Cleanup(time_t Time);
void Cleanup(void);
cEvent *AddEvent(cEvent *Event);
void DelEvent(cEvent *Event);
void HashEvent(cEvent *Event);
void UnhashEvent(cEvent *Event);
const cList<cEvent> *Events(void) const { return &events; }
const cEvent *GetPresentEvent(void) const;
const cEvent *GetFollowingEvent(void) const;
const cEvent *GetEvent(tEventID EventID, time_t StartTime = 0) const;
const cEvent *GetEventAround(time_t Time) const;
void Dump(FILE *f, const char *Prefix = "", eDumpMode DumpMode = dmAll, time_t AtTime = 0) const;
static bool Read(FILE *f, cSchedules *Schedules);
};
class cSchedulesLock {
private:
bool locked;
public:
cSchedulesLock(bool WriteLock = false, int TimeoutMs = 0);
~cSchedulesLock();
bool Locked(void) { return locked; }
};
class cSchedules : public cList<cSchedule> {
friend class cSchedule;
friend class cSchedulesLock;
private:
cRwLock rwlock;
static cSchedules schedules;
static const char *epgDataFileName;
static time_t lastCleanup;
static time_t lastDump;
static time_t modified;
public:
static void SetEpgDataFileName(const char *FileName);
static const cSchedules *Schedules(cSchedulesLock &SchedulesLock);
///< Caller must provide a cSchedulesLock which has to survive the entire
///< time the returned cSchedules is accessed. Once the cSchedules is no
///< longer used, the cSchedulesLock must be destroyed.
static time_t Modified(void) { return modified; }
static void SetModified(cSchedule *Schedule);
static void Cleanup(bool Force = false);
static void ResetVersions(void);
static bool ClearAll(void);
static bool Dump(FILE *f, const char *Prefix = "", eDumpMode DumpMode = dmAll, time_t AtTime = 0);
static bool Read(FILE *f = NULL);
cSchedule *AddSchedule(tChannelID ChannelID);
const cSchedule *GetSchedule(tChannelID ChannelID) const;
const cSchedule *GetSchedule(const cChannel *Channel, bool AddIfMissing = false) const;
};
void ReportEpgBugFixStats(bool Reset = false);
#endif //__EPG_H
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