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Now using the 'version number' of EPG events to avoid unnecessary work
This commit is contained in:
Klaus Schmidinger
parent
6c4e6cc666
commit
36c9c8811d
1
HISTORY
1
HISTORY
@ -2511,3 +2511,4 @@ Video Disk Recorder Revision History
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- Now the CA descriptors are sent to the CAM in the 'program' or 'ES level'
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sections, depending on where they are found in the PMT (thanks to Hans-Peter
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Raschke for reporting this one). This should make SkyCrypt CAMs work.
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- Now using the 'version number' of EPG events to avoid unnecessary work.
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31
eit.c
31
eit.c
@ -8,7 +8,7 @@
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* Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
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* Adapted to 'libsi' for VDR 1.3.0 by Marcel Wiesweg <marcel.wiesweg@gmx.de>.
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*
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* $Id: eit.c 1.82 2003/12/22 10:57:09 kls Exp $
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* $Id: eit.c 1.83 2003/12/25 12:48:47 kls Exp $
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*/
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#include "eit.h"
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@ -64,10 +64,31 @@ cEIT::cEIT(cSchedules *Schedules, int Source, u_char Tid, const u_char *Data)
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if (pEvent->TableID() == 0x00)
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continue;
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// If the new event comes from a table that belongs to an "other TS" and the existing
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// one comes from an "actual TS" table, lets skip it.
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if ((!isActualTS()) && (pEvent->TableID() == 0x4E || pEvent->TableID() == 0x50 || pEvent->TableID() == 0x51))
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// one comes from an "actual TS" table, let's skip it.
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#define ISACTUALTS(tid) (tid == 0x4E || (tid & 0x50) == 0x50)
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if (!ISACTUALTS(Tid) && ISACTUALTS(pEvent->TableID()))
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continue;
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// If the new event comes from a "schedule" table and the existing one comes from
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// a "present/following" table, let's skip it (the p/f table usually contains more
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// information, like e.g. a description).
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if ((Tid & 0x50) == 0x50 && pEvent->TableID() == 0x4E || (Tid & 0x60) == 0x60 && pEvent->TableID() == 0x4F)
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continue;
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// If both events come from the same "schedule" table and the new event's table id is larger than the
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// existing one's, let's skip it (higher tids mean "farther in the future" and usually have less information).
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if (((Tid & 0x50) == 0x50 || (Tid & 0x60) == 0x60) && (pEvent->TableID() & 0xF0) == (Tid & 0xF0) && (Tid > pEvent->TableID()))
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continue;
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// If the new event comes from the same table and has the same version number
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// as the existing one, let's skip it to avoid unnecessary work.
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// Unfortunately some stations (like, e.g. "Premiere") broadcast their EPG data on several transponders (like
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// the actual Premiere transponder and the Sat.1/Pro7 transponder), but use different version numbers on
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// each of them :-( So if one DVB card is tuned to the Premiere transponder, while an other one is tuned
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// to the Sat.1/Pro7 transponder, events will keep toggling because ot the bogus version numbers.
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if (Tid == pEvent->TableID() && pEvent->Version() == getVersionNumber())
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continue;
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}
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pEvent->SetVersion(getVersionNumber());
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pEvent->SetTableID(Tid);
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pEvent->SetEventID(SiEitEvent.getEventId()); // unfortunately some stations use different event ids for the same event in different tables :-(
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SI::Descriptor *d;
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SI::ExtendedEventDescriptors exGroup;
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@ -158,8 +179,8 @@ cTDT::cTDT(const u_char *Data)
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cEitFilter::cEitFilter(void)
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{
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Set(0x12, 0x4E, 0xFE); // event info, actual(0x4E)/other(0x4F) TS, present/following
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Set(0x12, 0x50, 0xFE); // event info, actual TS, schedule(0x50)/schedule for another 4 days(0x51)
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Set(0x12, 0x60, 0xFE); // event info, other TS, schedule(0x60)/schedule for another 4 days(0x61)
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Set(0x12, 0x50, 0xF0); // event info, actual TS, schedule(0x50)/schedule for future days(0x5X)
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Set(0x12, 0x60, 0xF0); // event info, other TS, schedule(0x60)/schedule for future days(0x6X)
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Set(0x14, 0x70); // TDT
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}
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13
epg.c
13
epg.c
@ -7,7 +7,7 @@
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* Original version (as used in VDR before 1.3.0) written by
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* Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
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*
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* $Id: epg.c 1.1 2003/12/22 13:07:32 kls Exp $
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* $Id: epg.c 1.2 2003/12/25 12:47:26 kls Exp $
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*/
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#include "epg.h"
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@ -21,6 +21,7 @@ cEvent::cEvent(tChannelID ChannelID, u_int16_t EventID)
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channelID = ChannelID;
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eventID = EventID;
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tableID = 0;
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version = 0xFF; // actual version numbers are 0..31
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isPresent = isFollowing = false;
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title = NULL;
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shortText = NULL;
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@ -37,11 +38,21 @@ cEvent::~cEvent()
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free(description);
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}
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void cEvent::SetEventID(u_int16_t EventID)
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{
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eventID = EventID;
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}
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void cEvent::SetTableID(uchar TableID)
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{
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tableID = TableID;
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}
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void cEvent::SetVersion(uchar Version)
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{
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version = Version;
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}
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void cEvent::SetIsPresent(bool IsPresent)
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{
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isPresent = IsPresent;
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8
epg.h
8
epg.h
@ -7,7 +7,7 @@
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* Original version (as used in VDR before 1.3.0) written by
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* Robert Schneider <Robert.Schneider@web.de> and Rolf Hakenes <hakenes@hippomi.de>.
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*
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* $Id: epg.h 1.1 2003/12/22 13:03:10 kls Exp $
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* $Id: epg.h 1.2 2003/12/24 13:20:35 kls Exp $
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*/
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#ifndef __EPG_H
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@ -26,6 +26,7 @@ private:
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tChannelID channelID; // Channel ID of program for this event
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u_int16_t eventID; // Event ID of this event
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uchar tableID; // Table ID this event came from
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uchar version; // Version number of section this event came from
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//XXX present/following obsolete???
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bool isPresent; // true if this is the present event running
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bool isFollowing; // true if this is the next event on this channel
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@ -41,7 +42,8 @@ public:
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~cEvent();
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tChannelID ChannelID(void) const { return channelID; }
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u_int16_t EventID(void) const { return eventID; }
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const uchar TableID(void) const { return tableID; }
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uchar TableID(void) const { return tableID; }
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uchar Version(void) const { return version; }
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bool IsPresent(void) const { return isPresent; }
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bool IsFollowing(void) const { return isFollowing; }
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const char *Title(void) const { return title; }
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@ -53,7 +55,9 @@ public:
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const char *GetDateString(void) const;
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const char *GetTimeString(void) const;
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const char *GetEndTimeString(void) const;
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void SetEventID(u_int16_t EventID);
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void SetTableID(uchar TableID);
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void SetVersion(uchar Version);
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void SetIsPresent(bool IsPresent);
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void SetIsFollowing(bool IsFollowing);
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void SetTitle(const char *Title);
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