mirror of https://github.com/VDR4Arch/vdr.git
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
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* eit.h: EIT section filter
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: eit.h 5.2 2021/04/04 11:06:30 kls Exp $
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*/
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#ifndef __EIT_H
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#define __EIT_H
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#include "filter.h"
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#include "tools.h"
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#define NUM_EIT_TABLES 17
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// Event information (or EPG) is broadcast in tables 0x4E and 0x4F for "present/following" events on
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// "this transponder" (0x4E) and "other transponders" (0x4F), as well as 0x50-0x5F ("all events on this
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// transponder") and 0x60-0x6F ("all events on other transponders"). Since it's either "this" or "other",
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// we only use one section syncer for 0x4E/0x4F and 16 syncers for either 0x5X or 0x6X.
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class cEitTables : public cListObject {
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private:
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cSectionSyncerRandom sectionSyncer[NUM_EIT_TABLES]; // for tables 0x4E/0x4F and 0x50-0x5F/0x60-0x6F
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time_t tableStart; // only used for table 0x4E
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time_t tableEnd;
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bool complete;
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int Index(uchar TableId) { return (TableId < 0x50) ? 0 : (TableId & 0x0F) + 1; }
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public:
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cEitTables(void);
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void SetTableStart(time_t t) { tableStart = t; }
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void SetTableEnd(time_t t) { tableEnd = t; }
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time_t TableStart(void) { return tableStart; }
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time_t TableEnd(void) { return tableEnd; }
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bool Check(uchar TableId, uchar Version, int SectionNumber);
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bool Processed(uchar TableId, uchar LastTableId, int SectionNumber, int LastSectionNumber, int SegmentLastSectionNumber = -1);
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///< Returns true if all sections of the table with the given TableId have been processed.
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bool Complete(void) { return complete; }
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///< Returns true if all sections of all tables have been processed.
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};
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class cEitTablesHash : public cHash<cEitTables> {
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public:
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cEitTablesHash(void) : cHash(HASHSIZE, true) {};
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};
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class cEitFilter : public cFilter {
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private:
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cMutex mutex;
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cEitTablesHash eitTablesHash;
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static time_t disableUntil;
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protected:
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virtual void Process(u_short Pid, u_char Tid, const u_char *Data, int Length);
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public:
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cEitFilter(void);
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virtual void SetStatus(bool On);
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static void SetDisableUntil(time_t Time);
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};
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#endif //__EIT_H
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