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fb8e7fa302
vdr/eit.c
Klaus Schmidinger fb8e7fa302 Version 1.0.0pre1 
- Added scanning for EPG data for another 4 days on channels that support this
  (thanks to Oleg Assovski).
- Removed '#define VFAT 1' from recording.c (was a leftover from testing).
- Fixed the "Low disk space!" message (thanks to Sergei Haller).
- Added the TPID to Hessen-3 in 'channels.conf' (thanks to Sergei Haller).
- Fixed a crash when replaying with DEBUG_OSD=1 (thanks to Stefan Huelswitt).
- Implemented the "First day" parameter for repeating timers. See FORMATS for
  information about the enhanced 'timers.conf' file format, and MANUAL for
  a description of the new item in the "Edit Timer" menu and the enhanced
  functionality of the "Blue" button in the "Timers" menu.
- When deleting a recording that is currently still being recorded, the related
  timer will now automatically be terminated. If this is a repeating timer, it
  will receive a "First day" setting that skips the timer for this day.
- Fixed closing all unused file descriptors when opening a pipe (thanks to
  Werner Fink).
- Instant recordings now take the EPG data from the point in time at 5 minutes
  from the start time of the recording. In order for this to work the 'active'
  parameter of a timer now uses the second bit to indicate that this is an
  "instant" recording (see FORMATS for details).
- Fixed the SVDRP GRAB command in case the video device can't be opened (thanks
  to Adrian Stabiszewski).
- At startup the data written into 'epg.data' is now read into the EPG data
  structures. In order for this to work, the 'E' record has been extended to
  (optionally) contain the 'table ID' (see FORMATS for details).
- The new SVDRP command PUTE can be used to put EPG data into the EPG list.
  See FORMATS for details about the required data format.
- Taking the German umlauts 'as is' when compiled with VFAT.
- The new Setup parameter RecordDolbyDigital can be used to generally turn off
  recording the Dolby Digital audio channels in case you want to save disk space
  or don't have the equipment to replay Dolby Digital audio.
- Reading the 'setup.conf' file no longer terminates in case of an error, but
  rather attempts to read the rest of the file.
- Removed DVD support from the core VDR source, since the current version from
  Andreas Schultz is already much further developed (DVD menu navigation) and
  the concept of "additional players" in VDR is going to change in version 1.1.0,
  where a new "plugin" interface shall allow the easy implementation of new
  players without having to patch the core VDR source. Until then, Andreas has
  agreed to provide his DVD support as a completely external patch.
- The contents of the distribution archive now contains the directory name with
  the current version number, as in 'vdr-1.0.0pre1/...' in order to avoid
  inadvertently overwriting an existing VDR directory with a new version.
- Added a missing error message in SVDRP command LSTC in case the given channel
  can't be found.
2002-02-24 18:00:00 +01:00

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/***************************************************************************
eit.c - description
-------------------
begin : Fri Aug 25 2000
copyright : (C) 2000 by Robert Schneider
email : Robert.Schneider@web.de
2001-08-15: Adapted to 'libdtv' by Rolf Hakenes <hakenes@hippomi.de>
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: eit.c 1.37 2002/02/23 17:11:19 kls Exp $
***************************************************************************/
#include "eit.h"
#include <ctype.h>
#include <fcntl.h>
#include <fstream.h>
#include <iomanip.h>
#include <iostream.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/poll.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include "config.h"
#include "libdtv/libdtv.h"
#include "videodir.h"
// --- cMJD ------------------------------------------------------------------
class cMJD {
public:
cMJD();
cMJD(u_char date_hi, u_char date_lo);
cMJD(u_char date_hi, u_char date_lo, u_char timehr, u_char timemi, u_char timese);
~cMJD();
/** */
void ConvertToTime();
/** */
bool SetSystemTime();
/** */
time_t GetTime_t();
protected: // Protected attributes
/** */
time_t mjdtime;
protected: // Protected attributes
/** */
u_char time_second;
protected: // Protected attributes
/** */
u_char time_minute;
protected: // Protected attributes
/** */
u_char time_hour;
protected: // Protected attributes
/** */
u_short mjd;
};
cMJD::cMJD()
{
}
cMJD::cMJD(u_char date_hi, u_char date_lo)
{
mjd = date_hi << 8 | date_lo;
time_hour = time_minute = time_second = 0;
ConvertToTime();
}
cMJD::cMJD(u_char date_hi, u_char date_lo, u_char timehr, u_char timemi, u_char timese)
{
mjd = date_hi << 8 | date_lo;
time_hour = timehr;
time_minute = timemi;
time_second = timese;
ConvertToTime();
}
cMJD::~cMJD()
{
}
/** */
void cMJD::ConvertToTime()
{
struct tm t;
t.tm_sec = time_second;
t.tm_min = time_minute;
t.tm_hour = time_hour;
int k;
t.tm_year = (int) ((mjd - 15078.2) / 365.25);
t.tm_mon = (int) ((mjd - 14956.1 - (int)(t.tm_year * 365.25)) / 30.6001);
t.tm_mday = (int) (mjd - 14956 - (int)(t.tm_year * 365.25) - (int)(t.tm_mon * 30.6001));
k = (t.tm_mon == 14 || t.tm_mon == 15) ? 1 : 0;
t.tm_year = t.tm_year + k;
t.tm_mon = t.tm_mon - 1 - k * 12;
t.tm_mon--;
t.tm_isdst = -1;
t.tm_gmtoff = 0;
mjdtime = timegm(&t);
//isyslog(LOG_INFO, "Time parsed = %s\n", ctime(&mjdtime));
}
/** */
bool cMJD::SetSystemTime()
{
struct tm *ptm;
time_t loctim;
struct tm tm_r;
ptm = localtime_r(&mjdtime, &tm_r);
loctim = time(NULL);
if (abs(mjdtime - loctim) > 2)
{
isyslog(LOG_INFO, "System Time = %s (%ld)\n", ctime(&loctim), loctim);
isyslog(LOG_INFO, "Local Time = %s (%ld)\n", ctime(&mjdtime), mjdtime);
if (stime(&mjdtime) < 0)
esyslog(LOG_ERR, "ERROR while setting system time: %m");
return true;
}
return false;
}
/** */
time_t cMJD::GetTime_t()
{
return mjdtime;
}
// --- cTDT ------------------------------------------------------------------
class cTDT {
public:
cTDT(tdt_t *ptdt);
~cTDT();
/** */
bool SetSystemTime();
protected: // Protected attributes
/** */
tdt_t tdt;
/** */
cMJD mjd; // kls 2001-03-02: made this a member instead of a pointer (it wasn't deleted in the destructor!)
};
#define BCD2DEC(b) (((b >> 4) & 0x0F) * 10 + (b & 0x0F))
cTDT::cTDT(tdt_t *ptdt)
:tdt(*ptdt)
,mjd(tdt.utc_mjd_hi, tdt.utc_mjd_lo, BCD2DEC(tdt.utc_time_h), BCD2DEC(tdt.utc_time_m), BCD2DEC(tdt.utc_time_s))
{
}
cTDT::~cTDT()
{
}
/** */
bool cTDT::SetSystemTime()
{
return mjd.SetSystemTime();
}
// --- cEventInfo ------------------------------------------------------------
cEventInfo::cEventInfo(unsigned short serviceid, unsigned short eventid)
{
pTitle = NULL;
pSubtitle = NULL;
pExtendedDescription = NULL;
bIsPresent = bIsFollowing = false;
lDuration = 0;
tTime = 0;
uTableID = 0;
uEventID = eventid;
uServiceID = serviceid;
nChannelNumber = 0;
}
cEventInfo::~cEventInfo()
{
delete pTitle;
delete pSubtitle;
delete pExtendedDescription;
}
/** */
const char * cEventInfo::GetTitle() const
{
return pTitle;
}
/** */
const char * cEventInfo::GetSubtitle() const
{
return pSubtitle;
}
/** */
const char * cEventInfo::GetExtendedDescription() const
{
return pExtendedDescription;
}
/** */
bool cEventInfo::IsPresent() const
{
return bIsPresent;
}
/** */
void cEventInfo::SetPresent(bool pres)
{
bIsPresent = pres;
}
/** */
bool cEventInfo::IsFollowing() const
{
return bIsFollowing;
}
void cEventInfo::SetTableID(unsigned char tableid)
{
uTableID = tableid;
}
/** */
void cEventInfo::SetFollowing(bool foll)
{
bIsFollowing = foll;
}
/** */
const char * cEventInfo::GetDate() const
{
static char szDate[25];
struct tm tm_r;
strftime(szDate, sizeof(szDate), "%d.%m.%Y", localtime_r(&tTime, &tm_r));
return szDate;
}
const unsigned char cEventInfo::GetTableID(void) const
{
return uTableID;
}
/** */
const char * cEventInfo::GetTimeString() const
{
static char szTime[25];
struct tm tm_r;
strftime(szTime, sizeof(szTime), "%R", localtime_r(&tTime, &tm_r));
return szTime;
}
/** */
const char * cEventInfo::GetEndTimeString() const
{
static char szEndTime[25];
time_t tEndTime = tTime + lDuration;
struct tm tm_r;
strftime(szEndTime, sizeof(szEndTime), "%R", localtime_r(&tEndTime, &tm_r));
return szEndTime;
}
/** */
time_t cEventInfo::GetTime() const
{
return tTime;
}
/** */
long cEventInfo::GetDuration() const
{
return lDuration;
}
/** */
unsigned short cEventInfo::GetEventID() const
{
return uEventID;
}
/** */
void cEventInfo::SetTitle(const char *string)
{
pTitle = strcpyrealloc(pTitle, string);
}
/** */
void cEventInfo::SetSubtitle(const char *string)
{
pSubtitle = strcpyrealloc(pSubtitle, string);
}
/** */
void cEventInfo::SetExtendedDescription(const char *string)
{
pExtendedDescription = strcpyrealloc(pExtendedDescription, string);
}
/** */
void cEventInfo::SetTime(time_t t)
{
tTime = t;
}
/** */
void cEventInfo::SetDuration(long l)
{
lDuration = l;
}
/** */
void cEventInfo::SetEventID(unsigned short evid)
{
uEventID = evid;
}
/** */
void cEventInfo::SetServiceID(unsigned short servid)
{
uServiceID = servid;
}
/** */
unsigned short cEventInfo::GetServiceID() const
{
return uServiceID;
}
/** */
void cEventInfo::Dump(FILE *f, const char *Prefix) const
{
if (tTime + lDuration >= time(NULL)) {
fprintf(f, "%sE %u %ld %ld %X\n", Prefix, uEventID, tTime, lDuration, uTableID);
if (!isempty(pTitle))
fprintf(f, "%sT %s\n", Prefix, pTitle);
if (!isempty(pSubtitle))
fprintf(f, "%sS %s\n", Prefix, pSubtitle);
if (!isempty(pExtendedDescription))
fprintf(f, "%sD %s\n", Prefix, pExtendedDescription);
fprintf(f, "%se\n", Prefix);
}
}
bool cEventInfo::Read(FILE *f, cSchedule *Schedule)
{
if (Schedule) {
cEventInfo *pEvent = NULL;
char *s;
while ((s = readline(f)) != NULL) {
char *t = skipspace(s + 1);
switch (*s) {
case 'E': if (!pEvent) {
unsigned int uEventID;
time_t tTime;
long lDuration;
unsigned int uTableID = 0;
int n = sscanf(t, "%u %ld %ld %X", &uEventID, &tTime, &lDuration, &uTableID);
if (n == 3 || n == 4) {
pEvent = (cEventInfo *)Schedule->GetEvent(uEventID, tTime);
if (!pEvent)
pEvent = Schedule->AddEvent(new cEventInfo(Schedule->GetServiceID(), uEventID));
if (pEvent) {
pEvent->SetTableID(uTableID);
pEvent->SetTime(tTime);
pEvent->SetDuration(lDuration);
}
}
}
break;
case 'T': if (pEvent)
pEvent->SetTitle(t);
break;
case 'S': if (pEvent)
pEvent->SetSubtitle(t);
break;
case 'D': if (pEvent)
pEvent->SetExtendedDescription(t);
break;
case 'e': pEvent = NULL;
break;
case 'c': // to keep things simple we react on 'c' here
return false;
default: esyslog(LOG_ERR, "ERROR: unexpected tag while reading EPG data: %s", s);
return false;
}
}
return true;
}
return false;
}
#define MAXEPGBUGFIXSTATS 5
#define MAXEPGBUGFIXCHANS 50
struct tEpgBugFixStats {
int hits;
int n;
unsigned short serviceIDs[MAXEPGBUGFIXCHANS];
tEpgBugFixStats(void) { hits = n = 0; }
};
tEpgBugFixStats EpgBugFixStats[MAXEPGBUGFIXSTATS];
static void EpgBugFixStat(int Number, unsigned int ServiceID)
{
if (0 <= Number && Number < MAXEPGBUGFIXSTATS) {
tEpgBugFixStats *p = &EpgBugFixStats[Number];
p->hits++;
int i = 0;
for (; i < p->n; i++) {
if (p->serviceIDs[i] == ServiceID)
break;
}
if (i == p->n && p->n < MAXEPGBUGFIXCHANS)
p->serviceIDs[p->n++] = ServiceID;
}
}
static void ReportEpgBugFixStats(bool Reset = false)
{
if (Setup.EPGBugfixLevel > 0) {
bool GotHits = false;
char buffer[1024];
for (int i = 0; i < MAXEPGBUGFIXSTATS; i++) {
const char *delim = "\t";
tEpgBugFixStats *p = &EpgBugFixStats[i];
if (p->hits) {
if (!GotHits) {
dsyslog(LOG_INFO, "=====================");
dsyslog(LOG_INFO, "EPG bugfix statistics");
dsyslog(LOG_INFO, "=====================");
dsyslog(LOG_INFO, "IF SOMEBODY WHO IS IN CHARGE OF THE EPG DATA FOR ONE OF THE LISTED");
dsyslog(LOG_INFO, "CHANNELS READS THIS: PLEASE TAKE A LOOK AT THE FUNCTION cEventInfo::FixEpgBugs()");
dsyslog(LOG_INFO, "IN VDR/eit.c TO LEARN WHAT'S WRONG WITH YOUR DATA, AND FIX IT!");
dsyslog(LOG_INFO, "=====================");
dsyslog(LOG_INFO, "Fix\tHits\tChannels");
GotHits = true;
}
char *q = buffer;
q += snprintf(q, sizeof(buffer) - (q - buffer), "%d\t%d", i, p->hits);
for (int c = 0; c < p->n; c++) {
cChannel *channel = Channels.GetByServiceID(p->serviceIDs[c]);
if (channel) {
q += snprintf(q, sizeof(buffer) - (q - buffer), "%s%s", delim, channel->name);
delim = ", ";
}
}
dsyslog(LOG_INFO, "%s", buffer);
}
if (Reset)
p->hits = p->n = 0;
}
if (GotHits)
dsyslog(LOG_INFO, "=====================");
}
}
void cEventInfo::FixEpgBugs(void)
{
// VDR can't usefully handle newline characters in the EPG data, so let's
// always convert them to blanks (independent of the setting of EPGBugfixLevel):
strreplace(pTitle, '\n', ' ');
strreplace(pSubtitle, '\n', ' ');
strreplace(pExtendedDescription, '\n', ' ');
if (Setup.EPGBugfixLevel == 0)
return;
// Some TV stations apparently have their own idea about how to fill in the
// EPG data. Let's fix their bugs as good as we can:
if (pTitle) {
// VOX and VIVA put the Subtitle in quotes and use either the Subtitle
// or the Extended Description field, depending on how long the string is:
//
// Title
// "Subtitle". Extended Description
//
if ((pSubtitle == NULL) != (pExtendedDescription == NULL)) {
char *p = pSubtitle ? pSubtitle : pExtendedDescription;
if (*p == '"') {
const char *delim = "\".";
char *e = strstr(p + 1, delim);
if (e) {
*e = 0;
char *s = strdup(p + 1);
char *d = strdup(e + strlen(delim));
delete pSubtitle;
delete pExtendedDescription;
pSubtitle = s;
pExtendedDescription = d;
EpgBugFixStat(0, GetServiceID());
}
}
}
// VOX and VIVA put the Extended Description into the Subtitle (preceeded
// by a blank) if there is no actual Subtitle and the Extended Description
// is short enough:
//
// Title
// Extended Description
//
if (pSubtitle && !pExtendedDescription) {
if (*pSubtitle == ' ') {
memmove(pSubtitle, pSubtitle + 1, strlen(pSubtitle));
pExtendedDescription = pSubtitle;
pSubtitle = NULL;
EpgBugFixStat(1, GetServiceID());
}
}
// Pro7 sometimes repeats the Title in the Subtitle:
//
// Title
// Title
//
if (pSubtitle && strcmp(pTitle, pSubtitle) == 0) {
delete pSubtitle;
pSubtitle = NULL;
EpgBugFixStat(2, GetServiceID());
}
// ZDF.info puts the Subtitle between double quotes, which is nothing
// but annoying (some even put a '.' after the closing '"'):
//
// Title
// "Subtitle"[.]
//
if (pSubtitle && *pSubtitle == '"') {
int l = strlen(pSubtitle);
if (l > 2 && (pSubtitle[l - 1] == '"' || (pSubtitle[l - 1] == '.' && pSubtitle[l - 2] == '"'))) {
memmove(pSubtitle, pSubtitle + 1, l);
char *p = strrchr(pSubtitle, '"');
if (p)
*p = 0;
EpgBugFixStat(3, GetServiceID());
}
}
if (Setup.EPGBugfixLevel <= 1)
return;
// Some channels apparently try to do some formatting in the texts,
// which is a bad idea because they have no way of knowing the width
// of the window that will actually display the text.
// Remove excess whitespace:
pTitle = compactspace(pTitle);
pSubtitle = compactspace(pSubtitle);
pExtendedDescription = compactspace(pExtendedDescription);
// Remove superfluous hyphens:
if (pExtendedDescription) {
char *p = pExtendedDescription + 1;
while (*p) {
if (*p == '-' && *(p + 1) == ' ' && *(p + 2) && islower(*(p - 1)) && islower(*(p + 2))) {
if (!startswith(p + 2, "und ")) { // special case in German, as in "Lach- und Sachgeschichten"
memmove(p, p + 2, strlen(p + 2) + 1);
EpgBugFixStat(4, GetServiceID());
}
}
p++;
}
}
// Some channels use the ` ("backtick") character, where a ' (single quote)
// would be normally used. Actually, "backticks" in normal text don't make
// much sense, so let's replace them:
strreplace(pTitle, '`', '\'');
strreplace(pSubtitle, '`', '\'');
strreplace(pExtendedDescription, '`', '\'');
}
}
// --- cSchedule -------------------------------------------------------------
cSchedule::cSchedule(unsigned short servid)
{
pPresent = pFollowing = NULL;
uServiceID = servid;
}
cSchedule::~cSchedule()
{
}
cEventInfo *cSchedule::AddEvent(cEventInfo *EventInfo)
{
Events.Add(EventInfo);
return EventInfo;
}
/** */
const cEventInfo * cSchedule::GetPresentEvent() const
{
// checking temporal sanity of present event (kls 2000-11-01)
time_t now = time(NULL);
//XXX if (pPresent && !(pPresent->GetTime() <= now && now <= pPresent->GetTime() + pPresent->GetDuration()))
{
cEventInfo *pe = Events.First();
while (pe != NULL)
{
if (pe->GetTime() <= now && now <= pe->GetTime() + pe->GetDuration())
return pe;
pe = Events.Next(pe);
}
}
return NULL;//XXX
return pPresent;
}
/** */
const cEventInfo * cSchedule::GetFollowingEvent() const
{
// checking temporal sanity of following event (kls 2000-11-01)
time_t now = time(NULL);
const cEventInfo *pr = GetPresentEvent(); // must have it verified!
if (pr)//XXX if (pFollowing && !(pr && pr->GetTime() + pr->GetDuration() <= pFollowing->GetTime()))
{
int minDt = INT_MAX;
cEventInfo *pe = Events.First(), *pf = NULL;
while (pe != NULL)
{
int dt = pe->GetTime() - now;
if (dt > 0 && dt < minDt)
{
minDt = dt;
pf = pe;
}
pe = Events.Next(pe);
}
return pf;
}
return NULL;//XXX
return pFollowing;
}
/** */
void cSchedule::SetServiceID(unsigned short servid)
{
uServiceID = servid;
}
/** */
unsigned short cSchedule::GetServiceID() const
{
return uServiceID;
}
/** */
const cEventInfo * cSchedule::GetEvent(unsigned short uEventID, time_t tTime) const
{
// Returns either the event info with the given uEventID or, if that one can't
// be found, the one with the given tTime (or NULL if neither can be found)
cEventInfo *pe = Events.First();
cEventInfo *pt = NULL;
while (pe != NULL)
{
if (pe->GetEventID() == uEventID)
return pe;
if (tTime > 0 && pe->GetTime() == tTime) // 'tTime < 0' is apparently used with NVOD channels
pt = pe;
pe = Events.Next(pe);
}
return pt;
}
/** */
const cEventInfo * cSchedule::GetEventAround(time_t tTime) const
{
cEventInfo *pe = Events.First();
while (pe != NULL)
{
if (pe->GetTime() <= tTime && tTime <= pe->GetTime() + pe->GetDuration())
return pe;
pe = Events.Next(pe);
}
return NULL;
}
/** */
bool cSchedule::SetPresentEvent(cEventInfo *pEvent)
{
if (pPresent != NULL)
pPresent->SetPresent(false);
pPresent = pEvent;
pPresent->SetPresent(true);
return true;
}
/** */
bool cSchedule::SetFollowingEvent(cEventInfo *pEvent)
{
if (pFollowing != NULL)
pFollowing->SetFollowing(false);
pFollowing = pEvent;
pFollowing->SetFollowing(true);
return true;
}
/** */
void cSchedule::Cleanup()
{
Cleanup(time(NULL));
}
/** */
void cSchedule::Cleanup(time_t tTime)
{
cEventInfo *pEvent;
for (int a = 0; true ; a++)
{
pEvent = Events.Get(a);
if (pEvent == NULL)
break;
if (pEvent->GetTime() + pEvent->GetDuration() + 3600 < tTime) // adding one hour for safety
{
Events.Del(pEvent);
a--;
}
}
}
/** */
void cSchedule::Dump(FILE *f, const char *Prefix) const
{
cChannel *channel = Channels.GetByServiceID(uServiceID);
if (channel)
{
fprintf(f, "%sC %u %s\n", Prefix, uServiceID, channel->name);
for (cEventInfo *p = Events.First(); p; p = Events.Next(p))
p->Dump(f, Prefix);
fprintf(f, "%sc\n", Prefix);
}
}
bool cSchedule::Read(FILE *f, cSchedules *Schedules)
{
if (Schedules) {
char *s;
while ((s = readline(f)) != NULL) {
if (*s == 'C') {
unsigned int uServiceID;
if (1 == sscanf(s + 1, "%u", &uServiceID)) {
cSchedule *p = (cSchedule *)Schedules->SetCurrentServiceID(uServiceID);
if (p) {
while (cEventInfo::Read(f, p))
; // loop stops after having read the closing 'c'
}
}
}
else {
esyslog(LOG_ERR, "ERROR: unexpected tag while reading EPG data: %s", s);
return false;
}
}
return true;
}
return false;
}
// --- cSchedules ------------------------------------------------------------
cSchedules::cSchedules()
{
pCurrentSchedule = NULL;
uCurrentServiceID = 0;
}
cSchedules::~cSchedules()
{
}
/** */
const cSchedule *cSchedules::SetCurrentServiceID(unsigned short servid)
{
pCurrentSchedule = GetSchedule(servid);
if (pCurrentSchedule == NULL)
{
Add(new cSchedule(servid));
pCurrentSchedule = GetSchedule(servid);
if (pCurrentSchedule == NULL)
return NULL;
}
uCurrentServiceID = servid;
return pCurrentSchedule;
}
/** */
const cSchedule * cSchedules::GetSchedule() const
{
return pCurrentSchedule;
}
/** */
const cSchedule * cSchedules::GetSchedule(unsigned short servid) const
{
cSchedule *p;
p = First();
while (p != NULL)
{
if (p->GetServiceID() == servid)
return p;
p = Next(p);
}
return NULL;
}
/** */
void cSchedules::Cleanup()
{
cSchedule *p;
p = First();
while (p != NULL)
{
p->Cleanup(time(NULL));
p = Next(p);
}
}
/** */
void cSchedules::Dump(FILE *f, const char *Prefix) const
{
for (cSchedule *p = First(); p; p = Next(p))
p->Dump(f, Prefix);
}
/** */
bool cSchedules::Read(FILE *f)
{
cMutexLock MutexLock;
return cSchedule::Read(f, (cSchedules *)cSIProcessor::Schedules(MutexLock));
}
// --- cEIT ------------------------------------------------------------------
class cEIT {
private:
cSchedules *schedules;
public:
cEIT(unsigned char *buf, int length, cSchedules *Schedules);
~cEIT();
/** */
int ProcessEIT(unsigned char *buffer);
protected: // Protected methods
/** returns true if this EIT covers a
present/following information, false if it's
schedule information */
bool IsPresentFollowing();
protected: // Protected attributes
/** Table ID of this EIT struct */
u_char tid;
};
cEIT::cEIT(unsigned char * buf, int length, cSchedules *Schedules)
{
tid = buf[0];
schedules = Schedules;
}
cEIT::~cEIT()
{
}
/** */
int cEIT::ProcessEIT(unsigned char *buffer)
{
cEventInfo *pEvent, *rEvent = NULL;
cSchedule *pSchedule, *rSchedule = NULL;
struct LIST *VdrProgramInfos;
struct VdrProgramInfo *VdrProgramInfo;
if (!buffer)
return -1;
VdrProgramInfos = createVdrProgramInfos(buffer);
if (VdrProgramInfos) {
for (VdrProgramInfo = (struct VdrProgramInfo *) VdrProgramInfos->Head; VdrProgramInfo; VdrProgramInfo = (struct VdrProgramInfo *) xSucc (VdrProgramInfo)) {
pSchedule = (cSchedule *)schedules->GetSchedule(VdrProgramInfo->ServiceID);
if (!pSchedule) {
schedules->Add(new cSchedule(VdrProgramInfo->ServiceID));
pSchedule = (cSchedule *)schedules->GetSchedule(VdrProgramInfo->ServiceID);
if (!pSchedule)
break;
}
if (VdrProgramInfo->ReferenceServiceID) {
rSchedule = (cSchedule *)schedules->GetSchedule(VdrProgramInfo->ReferenceServiceID);
if (!rSchedule)
break;
rEvent = (cEventInfo *)rSchedule->GetEvent((unsigned short)VdrProgramInfo->ReferenceEventID);
if (!rEvent)
break;
}
pEvent = (cEventInfo *)pSchedule->GetEvent((unsigned short)VdrProgramInfo->EventID, VdrProgramInfo->StartTime);
if (!pEvent) {
// If we don't have that event ID yet, we create a new one.
// Otherwise we copy the information into the existing event anyway, because the data might have changed.
pEvent = pSchedule->AddEvent(new cEventInfo(VdrProgramInfo->ServiceID, VdrProgramInfo->EventID));
if (!pEvent)
break;
pEvent->SetTableID(tid);
}
else {
// We have found an existing event, either through its event ID or its start time.
// If the existing event has a zero table ID it was defined externally and shall
// not be overwritten.
if (pEvent->GetTableID() == 0x00)
continue;
// If the new event comes from a table that belongs to an "other TS" and the existing
// one comes from an "actual TS" table, lets skip it.
if ((tid == 0x4F || tid == 0x60 || tid == 0x61) && (pEvent->GetTableID() == 0x4E || pEvent->GetTableID() == 0x50 || pEvent->GetTableID() == 0x51))
continue;
}
if (rEvent) {
pEvent->SetTitle(rEvent->GetTitle());
pEvent->SetSubtitle(rEvent->GetSubtitle());
pEvent->SetExtendedDescription(rEvent->GetExtendedDescription());
}
else {
pEvent->SetTableID(tid);
pEvent->SetTitle(VdrProgramInfo->ShortName);
pEvent->SetSubtitle(VdrProgramInfo->ShortText);
pEvent->SetExtendedDescription(VdrProgramInfo->ExtendedName);
//XXX kls 2001-09-22:
//XXX apparently this never occurred, so I have simpified ExtendedDescription handling
//XXX pEvent->AddExtendedDescription(VdrProgramInfo->ExtendedText);
}
pEvent->SetTime(VdrProgramInfo->StartTime);
pEvent->SetDuration(VdrProgramInfo->Duration);
pEvent->FixEpgBugs();
if (IsPresentFollowing()) {
if ((GetRunningStatus(VdrProgramInfo->Status) == RUNNING_STATUS_PAUSING) || (GetRunningStatus(VdrProgramInfo->Status) == RUNNING_STATUS_RUNNING))
pSchedule->SetPresentEvent(pEvent);
else if (GetRunningStatus(VdrProgramInfo->Status) == RUNNING_STATUS_AWAITING)
pSchedule->SetFollowingEvent(pEvent);
}
}
}
xMemFreeAll(NULL);
return 0;
}
/** returns true if this EIT covers a
present/following information, false if it's
schedule information */
bool cEIT::IsPresentFollowing()
{
if (tid == 0x4e || tid == 0x4f)
return true;
return false;
}
// --- cSIProcessor ----------------------------------------------------------
#define MAX_FILTERS 20
#define EPGDATAFILENAME "epg.data"
int cSIProcessor::numSIProcessors = 0;
cSchedules *cSIProcessor::schedules = NULL;
cMutex cSIProcessor::schedulesMutex;
const char *cSIProcessor::epgDataFileName = EPGDATAFILENAME;
/** */
cSIProcessor::cSIProcessor(const char *FileName)
{
fileName = strdup(FileName);
masterSIProcessor = numSIProcessors == 0; // the first one becomes the 'master'
useTStime = false;
filters = NULL;
if (!numSIProcessors++) // the first one creates it
schedules = new cSchedules;
filters = (SIP_FILTER *)calloc(MAX_FILTERS, sizeof(SIP_FILTER));
SetStatus(true);
Start();
}
cSIProcessor::~cSIProcessor()
{
if (masterSIProcessor)
ReportEpgBugFixStats();
active = false;
Cancel(3);
ShutDownFilters();
delete filters;
if (!--numSIProcessors) // the last one deletes it
delete schedules;
delete fileName;
}
const cSchedules *cSIProcessor::Schedules(cMutexLock &MutexLock)
{
if (MutexLock.Lock(&schedulesMutex))
return schedules;
return NULL;
}
bool cSIProcessor::Read(FILE *f)
{
bool OwnFile = f == NULL;
if (OwnFile) {
const char *FileName = GetEpgDataFileName();
if (access(FileName, R_OK) == 0) {
dsyslog(LOG_INFO, "reading EPG data from %s", FileName);
if ((f = fopen(FileName, "r")) == NULL) {
LOG_ERROR;
return false;
}
}
}
bool result = cSchedules::Read(f);
if (OwnFile)
fclose(f);
return result;
}
void cSIProcessor::SetEpgDataFileName(const char *FileName)
{
epgDataFileName = NULL;
if (FileName)
epgDataFileName = strdup(DirectoryOk(FileName) ? AddDirectory(FileName, EPGDATAFILENAME) : FileName);
}
const char *cSIProcessor::GetEpgDataFileName(void)
{
if (epgDataFileName)
return *epgDataFileName == '/' ? epgDataFileName : AddDirectory(VideoDirectory, epgDataFileName);
return NULL;
}
void cSIProcessor::SetStatus(bool On)
{
LOCK_THREAD;
schedulesMutex.Lock();
ShutDownFilters();
if (On)
{
AddFilter(0x14, 0x70); // TDT
AddFilter(0x14, 0x73); // TOT
AddFilter(0x12, 0x4e); // event info, actual TS, present/following
AddFilter(0x12, 0x4f); // event info, other TS, present/following
AddFilter(0x12, 0x50); // event info, actual TS, schedule
AddFilter(0x12, 0x60); // event info, other TS, schedule
AddFilter(0x12, 0x51); // event info, actual TS, schedule for another 4 days
AddFilter(0x12, 0x61); // event info, other TS, schedule for another 4 days
}
schedulesMutex.Unlock();
}
/** use the vbi device to parse all relevant SI
information and let the classes corresponding
to the tables write their information to the disk */
void cSIProcessor::Action()
{
dsyslog(LOG_INFO, "EIT processing thread started (pid=%d)%s", getpid(), masterSIProcessor ? " - master" : "");
time_t lastCleanup = time(NULL);
time_t lastDump = time(NULL);
active = true;
while(active)
{
if (masterSIProcessor)
{
time_t now = time(NULL);
struct tm tm_r;
struct tm *ptm = localtime_r(&now, &tm_r);
if (now - lastCleanup > 3600 && ptm->tm_hour == 5)
{
LOCK_THREAD;
schedulesMutex.Lock();
isyslog(LOG_INFO, "cleaning up schedules data");
schedules->Cleanup();
schedulesMutex.Unlock();
lastCleanup = now;
ReportEpgBugFixStats(true);
}
if (epgDataFileName && now - lastDump > 600)
{
LOCK_THREAD;
schedulesMutex.Lock();
FILE *f = fopen(GetEpgDataFileName(), "w");
if (f) {
schedules->Dump(f);
fclose(f);
}
else
LOG_ERROR;
lastDump = now;
schedulesMutex.Unlock();
}
}
// set up pfd structures for all active filter
pollfd pfd[MAX_FILTERS];
int NumUsedFilters = 0;
for (int a = 0; a < MAX_FILTERS ; a++)
{
if (filters[a].inuse)
{
pfd[NumUsedFilters].fd = filters[a].handle;
pfd[NumUsedFilters].events = POLLIN;
NumUsedFilters++;
}
}
// wait until data becomes ready from the bitfilter
if (poll(pfd, NumUsedFilters, 1000) != 0)
{
for (int a = 0; a < NumUsedFilters ; a++)
{
if (pfd[a].revents & POLLIN)
{
/* read section */
unsigned char buf[4096+1]; // max. allowed size for any EIT section (+1 for safety ;-)
if (safe_read(filters[a].handle, buf, 3) == 3)
{
int seclen = ((buf[1] & 0x0F) << 8) | (buf[2] & 0xFF);
int pid = filters[a].pid;
int n = safe_read(filters[a].handle, buf + 3, seclen);
if (n == seclen)
{
seclen += 3;
//dsyslog(LOG_INFO, "Received pid 0x%02x with table ID 0x%02x and length of %04d\n", pid, buf[0], seclen);
switch (pid)
{
case 0x14:
if (buf[0] == 0x70)
{
if (useTStime)
{
cTDT ctdt((tdt_t *)buf);
ctdt.SetSystemTime();
}
}
/*XXX this comes pretty often:
else
dsyslog(LOG_INFO, "Time packet was not 0x70 but 0x%02x\n", (int)buf[0]);
XXX*/
break;
case 0x12:
if (buf[0] != 0x72)
{
LOCK_THREAD;
schedulesMutex.Lock();
cEIT ceit(buf, seclen, schedules);
ceit.ProcessEIT(buf);
schedulesMutex.Unlock();
}
else
dsyslog(LOG_INFO, "Received stuffing section in EIT\n");
break;
default:
break;
}
}
/*XXX this just fills up the log file - shouldn't we rather try to re-sync?
else
dsyslog(LOG_INFO, "read incomplete section - seclen = %d, n = %d", seclen, n);
XXX*/
}
}
}
}
}
dsyslog(LOG_INFO, "EIT processing thread ended (pid=%d)%s", getpid(), masterSIProcessor ? " - master" : "");
}
/** Add a filter with packet identifier pid and
table identifer tid */
bool cSIProcessor::AddFilter(u_char pid, u_char tid)
{
dmxSctFilterParams sctFilterParams;
sctFilterParams.pid = pid;
memset(&sctFilterParams.filter.filter, 0, DMX_FILTER_SIZE);
memset(&sctFilterParams.filter.mask, 0, DMX_FILTER_SIZE);
sctFilterParams.timeout = 0;
sctFilterParams.flags = DMX_IMMEDIATE_START;
sctFilterParams.filter.filter[0] = tid;
sctFilterParams.filter.mask[0] = 0xFF;
for (int a = 0; a < MAX_FILTERS; a++)
{
if (!filters[a].inuse)
{
filters[a].pid = pid;
filters[a].tid = tid;
if ((filters[a].handle = open(fileName, O_RDWR | O_NONBLOCK)) >= 0)
{
if (ioctl(filters[a].handle, DMX_SET_FILTER, &sctFilterParams) >= 0)
filters[a].inuse = true;
else
{
esyslog(LOG_ERR, "ERROR: can't set filter");
close(filters[a].handle);
return false;
}
// dsyslog(LOG_INFO, " Registered filter handle %04x, pid = %02d, tid = %02d", filters[a].handle, filters[a].pid, filters[a].tid);
}
else
{
esyslog(LOG_ERR, "ERROR: can't open filter handle");
return false;
}
return true;
}
}
esyslog(LOG_ERR, "ERROR: too many filters");
return false;
}
/** set whether local systems time should be
set by the received TDT or TOT packets */
bool cSIProcessor::SetUseTSTime(bool use)
{
useTStime = use;
return useTStime;
}
/** */
bool cSIProcessor::ShutDownFilters(void)
{
for (int a = 0; a < MAX_FILTERS; a++)
{
if (filters[a].inuse)
{
close(filters[a].handle);
// dsyslog(LOG_INFO, "Deregistered filter handle %04x, pid = %02d, tid = %02d", filters[a].handle, filters[a].pid, filters[a].tid);
filters[a].inuse = false;
}
}
return true; // there's no real 'boolean' to return here...
}
/** */
bool cSIProcessor::SetCurrentServiceID(unsigned short servid)
{
LOCK_THREAD;
return schedules ? schedules->SetCurrentServiceID(servid) : false;
}
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