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vdr/epg.c
Klaus Schmidinger beffcabc81 Version 1.7.32 
VDR developer version 1.7.32 is now available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-1.7.32.tar.bz2

A 'diff' against the previous version is available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-1.7.31-1.7.32.diff

MD5 checksums:

068ba78fd427694dcc480fe3b2d07148  vdr-1.7.32.tar.bz2
222f1e9b4d4edaa6fe57286409614cc7  vdr-1.7.31-1.7.32.diff

WARNING:
========

This is a developer version. Even though I use it in my productive
environment. I strongly recommend that you only use it under controlled
conditions and for testing and debugging.

The main focus of this version is on an improved frame detection code,
and improvements to the cutting process. When cutting a recording, VDR
now removes any "dangling" TS packets from the beginning of an editing
sequence and pulls in any "pending" TS packets at the end of a sequence.
It also fixes all timestamps and continuity counters.
However, while the results look much better now in, for instance, Kaffeine,
the TT S2-6400 still shows some video artifacts at the editing points, and
the Mac video player sometimes totally chokes on edited material.
I did spend a lot of time trying to find out what could still be wrong here,
but couldn't come up with any new ideas. So I think it's now time to invite
others to test this new cutting code, read the source code and try to find
out what's still going wrong here. Maybe (hopefully ;-) it's just some stupid
little error... ;-)

From the HISTORY file:
- Pressing the Play key during normal live viewing mode now opens the Recordings menu
  if there is no "last viewed" recording (thanks to Alexander Wenzel).
  The same behavior has been implemented for the Blue key in the main menu.
- cIoThrottle::Engaged() is now also checked in cRemoveDeletedRecordingsThread::Action(),
  to suspend removing deleted recordings in case this is necessary to make room for
  new, ongoing recordings (suggested by Udo Richter).
- The cThread constructor now has an additional boolean parameter that can be set to
  true to have this thread run at a lower priority. Plugin authors that use low
  priority threads may want to use this instead of the calls to SetPriority(19) and
  SetIOPriority(7). The priority of a thread ("low" or "high") is now logged when the
  thread starts.
- Changed DTV_DVBT2_PLP_ID to DTV_STREAM_ID in dvbdevice.c to adapt to an incompatible
  change in DVB API 5.8 (reported by Derek Kelly).
  Removed the meanwhile obsolete definition of FE_CAN_TURBO_FEC.
- Fixed some compiler warnings under gcc version 4.7.1.
- Fixed setting the video format in the dvbhdffdevice (thanks to Torsten Lang).
- Fixed 'make install' to not overwrite existing configuration files (thanks to Peter
  Münster).
- Added including the Make.global and Make.config files to the dvbdhffdevice's
  libhdffcmd/Makefile.
- Added options to build a 32-bit version of VDR on a 64-bit machine to
  Make.config.template.
- Fixed handling VPS timers in case the running status of an event goes to '1' (not
  running) and later goes to '4' (running).
- If a frame position in the 'marks' file of a recording doesn't point to an I-frame,
  it will now be shifted towards the next I-frame, either up or down, whichever is
  closer (suggested by Udo Richter).
- Fixed a possible memory leak in SI::StructureLoop::getNextAsPointer() (reported by
  Sundararaj Reel).
- Fixed handling timers in case an event is modified and "phased out" while the timer
  is recording.
- Improved frame detection by parsing just far enough into the MPEG-4 NAL units to get
  the necessary information about frames and slices.
- The initial syncing of the frame detector is now done immediately after the first
  complete GOP has been seen. This makes recordings and especially pausing live video
  start up to twice as fast as before.
- Updated the Romanian OSD texts (thanks to Lucian Muresan).
- Fixed handling the very last entry in a recording index.
- The return type of cMarks::Add() has been changed to void, since due to the sorting
  of the list of marks the returned pointer might have pointed to a totally different
  mark. Besides, the return value was never actually used.
- Improved editing TS recordings by
  + stripping dangling TS packets from the beginning of a sequence
  + including pending TS packets at the end of a sequence
  + fixing all timestamps and continuity counters
  + generating editing marks for the edited version in such a way that each cutting
    point is marked by an "end" and "begin" mark with the same offset
  + no longer generating an editing mark at the "end" of the edited recording (this
    was actually generated at the beginning of the last GOP, so that a subsequent
    edit would have cut off the last GOP)
  + no longer generating any editing marks if the edited recording results on just
    one single sequence
  + ignoring pairs of editing marks that are placed at exactly the same position of
    a recording when actually cutting the recording
  + not doing anything if the editing marks in place would result in the edited
    version being the same as the original recording
- Editing marks can now be placed directly on top of each other, in which case they
  simply mark a position, but have no effect on the actual cutting process.
- When positioned at an offset where two (or more) editing marks are placed on top
  of each other, the '4' key moves the first one of them to the left, while the '6'
  key moves the last one of them to the right. The '7' and '9' key handle multiple
  marks at the same place as if it were one single mark.
- Modified editing marks are now written to disk whenever the replay progress display
  gets hidden (thanks to Christoph Haubrich).
2012-11-19 00:55:28 +01:00

1540 lines
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/*
* epg.c: 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.c 2.22 2012/10/04 12:21:24 kls Exp $
*/
#include "epg.h"
#include <ctype.h>
#include <limits.h>
#include <time.h>
#include "libsi/si.h"
#include "timers.h"
#define RUNNINGSTATUSTIMEOUT 30 // seconds before the running status is considered unknown
#define EPGDATAWRITEDELTA 600 // seconds between writing the epg.data file
// --- tComponent ------------------------------------------------------------
cString tComponent::ToString(void)
{
char buffer[256];
snprintf(buffer, sizeof(buffer), "%X %02X %s %s", stream, type, language, description ? description : "");
return buffer;
}
bool tComponent::FromString(const char *s)
{
unsigned int Stream, Type;
int n = sscanf(s, "%X %02X %7s %a[^\n]", &Stream, &Type, language, &description); // 7 = MAXLANGCODE2 - 1
if (n != 4 || isempty(description)) {
free(description);
description = NULL;
}
stream = Stream;
type = Type;
return n >= 3;
}
// --- cComponents -----------------------------------------------------------
cComponents::cComponents(void)
{
numComponents = 0;
components = NULL;
}
cComponents::~cComponents(void)
{
for (int i = 0; i < numComponents; i++)
free(components[i].description);
free(components);
}
bool cComponents::Realloc(int Index)
{
if (Index >= numComponents) {
Index++;
if (tComponent *NewBuffer = (tComponent *)realloc(components, Index * sizeof(tComponent))) {
int n = numComponents;
numComponents = Index;
components = NewBuffer;
memset(&components[n], 0, sizeof(tComponent) * (numComponents - n));
}
else {
esyslog("ERROR: out of memory");
return false;
}
}
return true;
}
void cComponents::SetComponent(int Index, const char *s)
{
if (Realloc(Index))
components[Index].FromString(s);
}
void cComponents::SetComponent(int Index, uchar Stream, uchar Type, const char *Language, const char *Description)
{
if (!Realloc(Index))
return;
tComponent *p = &components[Index];
p->stream = Stream;
p->type = Type;
strn0cpy(p->language, Language, sizeof(p->language));
char *q = strchr(p->language, ',');
if (q)
*q = 0; // strips rest of "normalized" language codes
p->description = strcpyrealloc(p->description, !isempty(Description) ? Description : NULL);
}
tComponent *cComponents::GetComponent(int Index, uchar Stream, uchar Type)
{
for (int i = 0; i < numComponents; i++) {
if (components[i].stream == Stream && (
Type == 0 || // don't care about the actual Type
Stream == 2 && (components[i].type < 5) == (Type < 5) // fallback "Dolby" component according to the "Premiere pseudo standard"
)) {
if (!Index--)
return &components[i];
}
}
return NULL;
}
// --- cEvent ----------------------------------------------------------------
cEvent::cEvent(tEventID EventID)
{
schedule = NULL;
eventID = EventID;
tableID = 0xFF; // actual table ids are 0x4E..0x60
version = 0xFF; // actual version numbers are 0..31
runningStatus = SI::RunningStatusUndefined;
title = NULL;
shortText = NULL;
description = NULL;
components = NULL;
memset(contents, 0, sizeof(contents));
parentalRating = 0;
startTime = 0;
duration = 0;
vps = 0;
SetSeen();
}
cEvent::~cEvent()
{
free(title);
free(shortText);
free(description);
delete components;
}
int cEvent::Compare(const cListObject &ListObject) const
{
cEvent *e = (cEvent *)&ListObject;
return startTime - e->startTime;
}
tChannelID cEvent::ChannelID(void) const
{
return schedule ? schedule->ChannelID() : tChannelID();
}
void cEvent::SetEventID(tEventID EventID)
{
if (eventID != EventID) {
if (schedule)
schedule->UnhashEvent(this);
eventID = EventID;
if (schedule)
schedule->HashEvent(this);
}
}
void cEvent::SetTableID(uchar TableID)
{
tableID = TableID;
}
void cEvent::SetVersion(uchar Version)
{
version = Version;
}
void cEvent::SetRunningStatus(int RunningStatus, cChannel *Channel)
{
if (Channel && runningStatus != RunningStatus && (RunningStatus > SI::RunningStatusNotRunning || runningStatus > SI::RunningStatusUndefined) && Channel->HasTimer())
isyslog("channel %d (%s) event %s status %d", Channel->Number(), Channel->Name(), *ToDescr(), RunningStatus);
runningStatus = RunningStatus;
}
void cEvent::SetTitle(const char *Title)
{
title = strcpyrealloc(title, Title);
}
void cEvent::SetShortText(const char *ShortText)
{
shortText = strcpyrealloc(shortText, ShortText);
}
void cEvent::SetDescription(const char *Description)
{
description = strcpyrealloc(description, Description);
}
void cEvent::SetComponents(cComponents *Components)
{
delete components;
components = Components;
}
void cEvent::SetContents(uchar *Contents)
{
for (int i = 0; i < MaxEventContents; i++)
contents[i] = Contents[i];
}
void cEvent::SetParentalRating(int ParentalRating)
{
parentalRating = ParentalRating;
}
void cEvent::SetStartTime(time_t StartTime)
{
if (startTime != StartTime) {
if (schedule)
schedule->UnhashEvent(this);
startTime = StartTime;
if (schedule)
schedule->HashEvent(this);
}
}
void cEvent::SetDuration(int Duration)
{
duration = Duration;
}
void cEvent::SetVps(time_t Vps)
{
vps = Vps;
}
void cEvent::SetSeen(void)
{
seen = time(NULL);
}
cString cEvent::ToDescr(void) const
{
char vpsbuf[64] = "";
if (Vps())
sprintf(vpsbuf, "(VPS: %s) ", *GetVpsString());
return cString::sprintf("%s %s-%s %s'%s'", *GetDateString(), *GetTimeString(), *GetEndTimeString(), vpsbuf, Title());
}
bool cEvent::HasTimer(void) const
{
for (cTimer *t = Timers.First(); t; t = Timers.Next(t)) {
if (t->Event() == this)
return true;
}
return false;
}
bool cEvent::IsRunning(bool OrAboutToStart) const
{
return runningStatus >= (OrAboutToStart ? SI::RunningStatusStartsInAFewSeconds : SI::RunningStatusPausing);
}
const char *cEvent::ContentToString(uchar Content)
{
switch (Content & 0xF0) {
case ecgMovieDrama:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Movie/Drama");
case 0x01: return tr("Content$Detective/Thriller");
case 0x02: return tr("Content$Adventure/Western/War");
case 0x03: return tr("Content$Science Fiction/Fantasy/Horror");
case 0x04: return tr("Content$Comedy");
case 0x05: return tr("Content$Soap/Melodrama/Folkloric");
case 0x06: return tr("Content$Romance");
case 0x07: return tr("Content$Serious/Classical/Religious/Historical Movie/Drama");
case 0x08: return tr("Content$Adult Movie/Drama");
}
break;
case ecgNewsCurrentAffairs:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$News/Current Affairs");
case 0x01: return tr("Content$News/Weather Report");
case 0x02: return tr("Content$News Magazine");
case 0x03: return tr("Content$Documentary");
case 0x04: return tr("Content$Discussion/Inverview/Debate");
}
break;
case ecgShow:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Show/Game Show");
case 0x01: return tr("Content$Game Show/Quiz/Contest");
case 0x02: return tr("Content$Variety Show");
case 0x03: return tr("Content$Talk Show");
}
break;
case ecgSports:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Sports");
case 0x01: return tr("Content$Special Event");
case 0x02: return tr("Content$Sport Magazine");
case 0x03: return tr("Content$Football/Soccer");
case 0x04: return tr("Content$Tennis/Squash");
case 0x05: return tr("Content$Team Sports");
case 0x06: return tr("Content$Athletics");
case 0x07: return tr("Content$Motor Sport");
case 0x08: return tr("Content$Water Sport");
case 0x09: return tr("Content$Winter Sports");
case 0x0A: return tr("Content$Equestrian");
case 0x0B: return tr("Content$Martial Sports");
}
break;
case ecgChildrenYouth:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Children's/Youth Programme");
case 0x01: return tr("Content$Pre-school Children's Programme");
case 0x02: return tr("Content$Entertainment Programme for 6 to 14");
case 0x03: return tr("Content$Entertainment Programme for 10 to 16");
case 0x04: return tr("Content$Informational/Educational/School Programme");
case 0x05: return tr("Content$Cartoons/Puppets");
}
break;
case ecgMusicBalletDance:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Music/Ballet/Dance");
case 0x01: return tr("Content$Rock/Pop");
case 0x02: return tr("Content$Serious/Classical Music");
case 0x03: return tr("Content$Folk/Tradional Music");
case 0x04: return tr("Content$Jazz");
case 0x05: return tr("Content$Musical/Opera");
case 0x06: return tr("Content$Ballet");
}
break;
case ecgArtsCulture:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Arts/Culture");
case 0x01: return tr("Content$Performing Arts");
case 0x02: return tr("Content$Fine Arts");
case 0x03: return tr("Content$Religion");
case 0x04: return tr("Content$Popular Culture/Traditional Arts");
case 0x05: return tr("Content$Literature");
case 0x06: return tr("Content$Film/Cinema");
case 0x07: return tr("Content$Experimental Film/Video");
case 0x08: return tr("Content$Broadcasting/Press");
case 0x09: return tr("Content$New Media");
case 0x0A: return tr("Content$Arts/Culture Magazine");
case 0x0B: return tr("Content$Fashion");
}
break;
case ecgSocialPoliticalEconomics:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Social/Political/Economics");
case 0x01: return tr("Content$Magazine/Report/Documentary");
case 0x02: return tr("Content$Economics/Social Advisory");
case 0x03: return tr("Content$Remarkable People");
}
break;
case ecgEducationalScience:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Education/Science/Factual");
case 0x01: return tr("Content$Nature/Animals/Environment");
case 0x02: return tr("Content$Technology/Natural Sciences");
case 0x03: return tr("Content$Medicine/Physiology/Psychology");
case 0x04: return tr("Content$Foreign Countries/Expeditions");
case 0x05: return tr("Content$Social/Spiritual Sciences");
case 0x06: return tr("Content$Further Education");
case 0x07: return tr("Content$Languages");
}
break;
case ecgLeisureHobbies:
switch (Content & 0x0F) {
default:
case 0x00: return tr("Content$Leisure/Hobbies");
case 0x01: return tr("Content$Tourism/Travel");
case 0x02: return tr("Content$Handicraft");
case 0x03: return tr("Content$Motoring");
case 0x04: return tr("Content$Fitness & Health");
case 0x05: return tr("Content$Cooking");
case 0x06: return tr("Content$Advertisement/Shopping");
case 0x07: return tr("Content$Gardening");
}
break;
case ecgSpecial:
switch (Content & 0x0F) {
case 0x00: return tr("Content$Original Language");
case 0x01: return tr("Content$Black & White");
case 0x02: return tr("Content$Unpublished");
case 0x03: return tr("Content$Live Broadcast");
default: ;
}
break;
default: ;
}
return "";
}
cString cEvent::GetParentalRatingString(void) const
{
if (parentalRating)
return cString::sprintf(tr("ParentalRating$from %d"), parentalRating);
return NULL;
}
cString cEvent::GetDateString(void) const
{
return DateString(startTime);
}
cString cEvent::GetTimeString(void) const
{
return TimeString(startTime);
}
cString cEvent::GetEndTimeString(void) const
{
return TimeString(startTime + duration);
}
cString cEvent::GetVpsString(void) const
{
char buf[25];
struct tm tm_r;
strftime(buf, sizeof(buf), "%d.%m. %R", localtime_r(&vps, &tm_r));
return buf;
}
void cEvent::Dump(FILE *f, const char *Prefix, bool InfoOnly) const
{
if (InfoOnly || startTime + duration + Setup.EPGLinger * 60 >= time(NULL)) {
fprintf(f, "%sE %u %ld %d %X %X\n", Prefix, eventID, startTime, duration, tableID, version);
if (!isempty(title))
fprintf(f, "%sT %s\n", Prefix, title);
if (!isempty(shortText))
fprintf(f, "%sS %s\n", Prefix, shortText);
if (!isempty(description)) {
strreplace(description, '\n', '|');
fprintf(f, "%sD %s\n", Prefix, description);
strreplace(description, '|', '\n');
}
if (contents[0]) {
fprintf(f, "%sG", Prefix);
for (int i = 0; Contents(i); i++)
fprintf(f, " %02X", Contents(i));
fprintf(f, "\n");
}
if (parentalRating)
fprintf(f, "%sR %d\n", Prefix, parentalRating);
if (components) {
for (int i = 0; i < components->NumComponents(); i++) {
tComponent *p = components->Component(i);
fprintf(f, "%sX %s\n", Prefix, *p->ToString());
}
}
if (vps)
fprintf(f, "%sV %ld\n", Prefix, vps);
if (!InfoOnly)
fprintf(f, "%se\n", Prefix);
}
}
bool cEvent::Parse(char *s)
{
char *t = skipspace(s + 1);
switch (*s) {
case 'T': SetTitle(t);
break;
case 'S': SetShortText(t);
break;
case 'D': strreplace(t, '|', '\n');
SetDescription(t);
break;
case 'G': {
memset(contents, 0, sizeof(contents));
for (int i = 0; i < MaxEventContents; i++) {
char *tail = NULL;
int c = strtol(t, &tail, 16);
if (0x00 < c && c <= 0xFF) {
contents[i] = c;
t = tail;
}
else
break;
}
}
break;
case 'R': SetParentalRating(atoi(t));
break;
case 'X': if (!components)
components = new cComponents;
components->SetComponent(components->NumComponents(), t);
break;
case 'V': SetVps(atoi(t));
break;
default: esyslog("ERROR: unexpected tag while reading EPG data: %s", s);
return false;
}
return true;
}
bool cEvent::Read(FILE *f, cSchedule *Schedule)
{
if (Schedule) {
cEvent *Event = NULL;
char *s;
int line = 0;
cReadLine ReadLine;
while ((s = ReadLine.Read(f)) != NULL) {
line++;
char *t = skipspace(s + 1);
switch (*s) {
case 'E': if (!Event) {
unsigned int EventID;
time_t StartTime;
int Duration;
unsigned int TableID = 0;
unsigned int Version = 0xFF; // actual value is ignored
int n = sscanf(t, "%u %ld %d %X %X", &EventID, &StartTime, &Duration, &TableID, &Version);
if (n >= 3 && n <= 5) {
Event = (cEvent *)Schedule->GetEvent(EventID, StartTime);
cEvent *newEvent = NULL;
if (Event)
DELETENULL(Event->components);
if (!Event) {
Event = newEvent = new cEvent(EventID);
Event->seen = 0;
}
if (Event) {
Event->SetTableID(TableID);
Event->SetStartTime(StartTime);
Event->SetDuration(Duration);
if (newEvent)
Schedule->AddEvent(newEvent);
}
}
}
break;
case 'e': if (Event && !Event->Title())
Event->SetTitle(tr("No title"));
Event = NULL;
break;
case 'c': // to keep things simple we react on 'c' here
return true;
default: if (Event && !Event->Parse(s)) {
esyslog("ERROR: EPG data problem in line %d", line);
return false;
}
}
}
esyslog("ERROR: unexpected end of file while reading EPG data");
}
return false;
}
#define MAXEPGBUGFIXSTATS 13
#define MAXEPGBUGFIXCHANS 100
struct tEpgBugFixStats {
int hits;
int n;
tChannelID channelIDs[MAXEPGBUGFIXCHANS];
tEpgBugFixStats(void) { hits = n = 0; }
};
tEpgBugFixStats EpgBugFixStats[MAXEPGBUGFIXSTATS];
static void EpgBugFixStat(int Number, tChannelID ChannelID)
{
if (0 <= Number && Number < MAXEPGBUGFIXSTATS) {
tEpgBugFixStats *p = &EpgBugFixStats[Number];
p->hits++;
int i = 0;
for (; i < p->n; i++) {
if (p->channelIDs[i] == ChannelID)
break;
}
if (i == p->n && p->n < MAXEPGBUGFIXCHANS)
p->channelIDs[p->n++] = ChannelID;
}
}
void ReportEpgBugFixStats(bool Force)
{
if (Setup.EPGBugfixLevel > 0) {
static time_t LastReport = 0;
time_t now = time(NULL);
if (now - LastReport > 3600 || Force) {
LastReport = now;
struct tm tm_r;
struct tm *ptm = localtime_r(&now, &tm_r);
if (ptm->tm_hour != 5)
return;
}
else
return;
bool GotHits = false;
char buffer[1024];
for (int i = 0; i < MAXEPGBUGFIXSTATS; i++) {
const char *delim = " ";
tEpgBugFixStats *p = &EpgBugFixStats[i];
if (p->hits) {
bool PrintedStats = false;
char *q = buffer;
*buffer = 0;
for (int c = 0; c < p->n; c++) {
cChannel *channel = Channels.GetByChannelID(p->channelIDs[c], true);
if (channel) {
if (!GotHits) {
dsyslog("=====================");
dsyslog("EPG bugfix statistics");
dsyslog("=====================");
dsyslog("IF SOMEBODY WHO IS IN CHARGE OF THE EPG DATA FOR ONE OF THE LISTED");
dsyslog("CHANNELS READS THIS: PLEASE TAKE A LOOK AT THE FUNCTION cEvent::FixEpgBugs()");
dsyslog("IN VDR/epg.c TO LEARN WHAT'S WRONG WITH YOUR DATA, AND FIX IT!");
dsyslog("=====================");
dsyslog("Fix Hits Channels");
GotHits = true;
}
if (!PrintedStats) {
q += snprintf(q, sizeof(buffer) - (q - buffer), "%-3d %-4d", i, p->hits);
PrintedStats = true;
}
q += snprintf(q, sizeof(buffer) - (q - buffer), "%s%s", delim, channel->Name());
delim = ", ";
if (q - buffer > 80) {
q += snprintf(q, sizeof(buffer) - (q - buffer), "%s...", delim);
break;
}
}
}
if (*buffer)
dsyslog("%s", buffer);
}
p->hits = p->n = 0;
}
if (GotHits)
dsyslog("=====================");
}
}
static void StripControlCharacters(char *s)
{
if (s) {
int len = strlen(s);
while (len > 0) {
int l = Utf8CharLen(s);
uchar *p = (uchar *)s;
if (l == 2 && *p == 0xC2) // UTF-8 sequence
p++;
if (*p == 0x86 || *p == 0x87) {
memmove(s, p + 1, len - l + 1); // we also copy the terminating 0!
len -= l;
l = 0;
}
s += l;
len -= l;
}
}
}
void cEvent::FixEpgBugs(void)
{
if (isempty(title)) {
// we don't want any "(null)" titles
title = strcpyrealloc(title, tr("No title"));
EpgBugFixStat(12, ChannelID());
}
if (Setup.EPGBugfixLevel == 0)
goto Final;
// 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:
// Some channels put the ShortText in quotes and use either the ShortText
// or the Description field, depending on how long the string is:
//
// Title
// "ShortText". Description
//
if ((shortText == NULL) != (description == NULL)) {
char *p = shortText ? shortText : description;
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));
free(shortText);
free(description);
shortText = s;
description = d;
EpgBugFixStat(1, ChannelID());
}
}
}
// Some channels put the Description into the ShortText (preceded
// by a blank) if there is no actual ShortText and the Description
// is short enough:
//
// Title
// Description
//
if (shortText && !description) {
if (*shortText == ' ') {
memmove(shortText, shortText + 1, strlen(shortText));
description = shortText;
shortText = NULL;
EpgBugFixStat(2, ChannelID());
}
}
// Sometimes they repeat the Title in the ShortText:
//
// Title
// Title
//
if (shortText && strcmp(title, shortText) == 0) {
free(shortText);
shortText = NULL;
EpgBugFixStat(3, ChannelID());
}
// Some channels put the ShortText between double quotes, which is nothing
// but annoying (some even put a '.' after the closing '"'):
//
// Title
// "ShortText"[.]
//
if (shortText && *shortText == '"') {
int l = strlen(shortText);
if (l > 2 && (shortText[l - 1] == '"' || (shortText[l - 1] == '.' && shortText[l - 2] == '"'))) {
memmove(shortText, shortText + 1, l);
char *p = strrchr(shortText, '"');
if (p)
*p = 0;
EpgBugFixStat(4, ChannelID());
}
}
if (Setup.EPGBugfixLevel <= 1)
goto Final;
// 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:
title = compactspace(title);
shortText = compactspace(shortText);
description = compactspace(description);
#define MAX_USEFUL_EPISODE_LENGTH 40
// Some channels put a whole lot of information in the ShortText and leave
// the Description totally empty. So if the ShortText length exceeds
// MAX_USEFUL_EPISODE_LENGTH, let's put this into the Description
// instead:
if (!isempty(shortText) && isempty(description)) {
if (strlen(shortText) > MAX_USEFUL_EPISODE_LENGTH) {
free(description);
description = shortText;
shortText = NULL;
EpgBugFixStat(6, ChannelID());
}
}
// Some channels put the same information into ShortText and Description.
// In that case we delete one of them:
if (shortText && description && strcmp(shortText, description) == 0) {
if (strlen(shortText) > MAX_USEFUL_EPISODE_LENGTH) {
free(shortText);
shortText = NULL;
}
else {
free(description);
description = NULL;
}
EpgBugFixStat(7, ChannelID());
}
// 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(title, '`', '\'');
strreplace(shortText, '`', '\'');
strreplace(description, '`', '\'');
if (Setup.EPGBugfixLevel <= 2)
goto Final;
// The stream components have a "description" field which some channels
// apparently have no idea of how to set correctly:
if (components) {
for (int i = 0; i < components->NumComponents(); i++) {
tComponent *p = components->Component(i);
switch (p->stream) {
case 0x01: { // video
if (p->description) {
if (strcasecmp(p->description, "Video") == 0 ||
strcasecmp(p->description, "Bildformat") == 0) {
// Yes, we know it's video - that's what the 'stream' code
// is for! But _which_ video is it?
free(p->description);
p->description = NULL;
EpgBugFixStat(8, ChannelID());
}
}
if (!p->description) {
switch (p->type) {
case 0x01:
case 0x05: p->description = strdup("4:3"); break;
case 0x02:
case 0x03:
case 0x06:
case 0x07: p->description = strdup("16:9"); break;
case 0x04:
case 0x08: p->description = strdup(">16:9"); break;
case 0x09:
case 0x0D: p->description = strdup("HD 4:3"); break;
case 0x0A:
case 0x0B:
case 0x0E:
case 0x0F: p->description = strdup("HD 16:9"); break;
case 0x0C:
case 0x10: p->description = strdup("HD >16:9"); break;
default: ;
}
EpgBugFixStat(9, ChannelID());
}
}
break;
case 0x02: { // audio
if (p->description) {
if (strcasecmp(p->description, "Audio") == 0) {
// Yes, we know it's audio - that's what the 'stream' code
// is for! But _which_ audio is it?
free(p->description);
p->description = NULL;
EpgBugFixStat(10, ChannelID());
}
}
if (!p->description) {
switch (p->type) {
case 0x05: p->description = strdup("Dolby Digital"); break;
default: ; // all others will just display the language
}
EpgBugFixStat(11, ChannelID());
}
}
break;
default: ;
}
}
}
Final:
// VDR can't usefully handle newline characters in the title, shortText or component description of EPG
// data, so let's always convert them to blanks (independent of the setting of EPGBugfixLevel):
strreplace(title, '\n', ' ');
strreplace(shortText, '\n', ' ');
if (components) {
for (int i = 0; i < components->NumComponents(); i++) {
tComponent *p = components->Component(i);
if (p->description)
strreplace(p->description, '\n', ' ');
}
}
// Same for control characters:
StripControlCharacters(title);
StripControlCharacters(shortText);
StripControlCharacters(description);
}
// --- cSchedule -------------------------------------------------------------
cSchedule::cSchedule(tChannelID ChannelID)
{
channelID = ChannelID;
hasRunning = false;
modified = 0;
presentSeen = 0;
}
cEvent *cSchedule::AddEvent(cEvent *Event)
{
events.Add(Event);
Event->schedule = this;
HashEvent(Event);
return Event;
}
void cSchedule::DelEvent(cEvent *Event)
{
if (Event->schedule == this) {
if (hasRunning && Event->IsRunning())
ClrRunningStatus();
UnhashEvent(Event);
events.Del(Event);
}
}
void cSchedule::HashEvent(cEvent *Event)
{
eventsHashID.Add(Event, Event->EventID());
if (Event->StartTime() > 0) // 'StartTime < 0' is apparently used with NVOD channels
eventsHashStartTime.Add(Event, Event->StartTime());
}
void cSchedule::UnhashEvent(cEvent *Event)
{
eventsHashID.Del(Event, Event->EventID());
if (Event->StartTime() > 0) // 'StartTime < 0' is apparently used with NVOD channels
eventsHashStartTime.Del(Event, Event->StartTime());
}
const cEvent *cSchedule::GetPresentEvent(void) const
{
const cEvent *pe = NULL;
time_t now = time(NULL);
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p->StartTime() <= now)
pe = p;
else if (p->StartTime() > now + 3600)
break;
if (p->SeenWithin(RUNNINGSTATUSTIMEOUT) && p->RunningStatus() >= SI::RunningStatusPausing)
return p;
}
return pe;
}
const cEvent *cSchedule::GetFollowingEvent(void) const
{
const cEvent *p = GetPresentEvent();
if (p)
p = events.Next(p);
else {
time_t now = time(NULL);
for (p = events.First(); p; p = events.Next(p)) {
if (p->StartTime() >= now)
break;
}
}
return p;
}
const cEvent *cSchedule::GetEvent(tEventID EventID, time_t StartTime) const
{
// Returns the event info with the given StartTime or, if no actual StartTime
// is given, the one with the given EventID.
if (StartTime > 0) // 'StartTime < 0' is apparently used with NVOD channels
return eventsHashStartTime.Get(StartTime);
else
return eventsHashID.Get(EventID);
}
const cEvent *cSchedule::GetEventAround(time_t Time) const
{
const cEvent *pe = NULL;
time_t delta = INT_MAX;
for (cEvent *p = events.First(); p; p = events.Next(p)) {
time_t dt = Time - p->StartTime();
if (dt >= 0 && dt < delta && p->EndTime() >= Time) {
delta = dt;
pe = p;
}
}
return pe;
}
void cSchedule::SetRunningStatus(cEvent *Event, int RunningStatus, cChannel *Channel)
{
hasRunning = false;
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p == Event) {
if (p->RunningStatus() > SI::RunningStatusNotRunning || RunningStatus > SI::RunningStatusNotRunning) {
p->SetRunningStatus(RunningStatus, Channel);
break;
}
}
else if (RunningStatus >= SI::RunningStatusPausing && p->StartTime() < Event->StartTime())
p->SetRunningStatus(SI::RunningStatusNotRunning);
if (p->RunningStatus() >= SI::RunningStatusPausing)
hasRunning = true;
}
}
void cSchedule::ClrRunningStatus(cChannel *Channel)
{
if (hasRunning) {
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p->RunningStatus() >= SI::RunningStatusPausing) {
p->SetRunningStatus(SI::RunningStatusNotRunning, Channel);
hasRunning = false;
break;
}
}
}
}
void cSchedule::ResetVersions(void)
{
for (cEvent *p = events.First(); p; p = events.Next(p))
p->SetVersion(0xFF);
}
void cSchedule::Sort(void)
{
events.Sort();
// Make sure there are no RunningStatusUndefined before the currently running event:
if (hasRunning) {
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p->RunningStatus() >= SI::RunningStatusPausing)
break;
p->SetRunningStatus(SI::RunningStatusNotRunning);
}
}
}
void cSchedule::DropOutdated(time_t SegmentStart, time_t SegmentEnd, uchar TableID, uchar Version)
{
if (SegmentStart > 0 && SegmentEnd > 0) {
for (cEvent *p = events.First(); p; p = events.Next(p)) {
if (p->EndTime() > SegmentStart) {
if (p->StartTime() < SegmentEnd) {
// The event overlaps with the given time segment.
if (p->TableID() > TableID || p->TableID() == TableID && p->Version() != Version) {
// The segment overwrites all events from tables with higher ids, and
// within the same table id all events must have the same version.
// We can't delete the event right here because a timer might have
// a pointer to it, so let's set its id and start time to 0 to have it
// "phased out":
if (hasRunning && p->IsRunning())
ClrRunningStatus();
UnhashEvent(p);
p->eventID = 0;
p->startTime = 0;
}
}
else
break;
}
}
}
}
void cSchedule::Cleanup(void)
{
Cleanup(time(NULL));
}
void cSchedule::Cleanup(time_t Time)
{
cEvent *Event;
while ((Event = events.First()) != NULL) {
if (!Event->HasTimer() && Event->EndTime() + Setup.EPGLinger * 60 + 3600 < Time) // adding one hour for safety
DelEvent(Event);
else
break;
}
}
void cSchedule::Dump(FILE *f, const char *Prefix, eDumpMode DumpMode, time_t AtTime) const
{
cChannel *channel = Channels.GetByChannelID(channelID, true);
if (channel) {
fprintf(f, "%sC %s %s\n", Prefix, *channel->GetChannelID().ToString(), channel->Name());
const cEvent *p;
switch (DumpMode) {
case dmAll: {
for (p = events.First(); p; p = events.Next(p))
p->Dump(f, Prefix);
}
break;
case dmPresent: {
if ((p = GetPresentEvent()) != NULL)
p->Dump(f, Prefix);
}
break;
case dmFollowing: {
if ((p = GetFollowingEvent()) != NULL)
p->Dump(f, Prefix);
}
break;
case dmAtTime: {
if ((p = GetEventAround(AtTime)) != NULL)
p->Dump(f, Prefix);
}
break;
default: esyslog("ERROR: unknown DumpMode %d (%s %d)", DumpMode, __FUNCTION__, __LINE__);
}
fprintf(f, "%sc\n", Prefix);
}
}
bool cSchedule::Read(FILE *f, cSchedules *Schedules)
{
if (Schedules) {
cReadLine ReadLine;
char *s;
while ((s = ReadLine.Read(f)) != NULL) {
if (*s == 'C') {
s = skipspace(s + 1);
char *p = strchr(s, ' ');
if (p)
*p = 0; // strips optional channel name
if (*s) {
tChannelID channelID = tChannelID::FromString(s);
if (channelID.Valid()) {
cSchedule *p = Schedules->AddSchedule(channelID);
if (p) {
if (!cEvent::Read(f, p))
return false;
p->Sort();
Schedules->SetModified(p);
}
}
else {
esyslog("ERROR: invalid channel ID: %s", s);
return false;
}
}
}
else {
esyslog("ERROR: unexpected tag while reading EPG data: %s", s);
return false;
}
}
return true;
}
return false;
}
// --- cEpgDataWriter ---------------------------------------------------------
class cEpgDataWriter : public cThread {
private:
cMutex mutex;
protected:
virtual void Action(void);
public:
cEpgDataWriter(void);
void Perform(void);
};
cEpgDataWriter::cEpgDataWriter(void)
:cThread("epg data writer", true)
{
}
void cEpgDataWriter::Action(void)
{
Perform();
}
void cEpgDataWriter::Perform(void)
{
cMutexLock MutexLock(&mutex); // to make sure fore- and background calls don't cause parellel dumps!
{
cSchedulesLock SchedulesLock(true, 1000);
cSchedules *s = (cSchedules *)cSchedules::Schedules(SchedulesLock);
if (s) {
time_t now = time(NULL);
for (cSchedule *p = s->First(); p; p = s->Next(p))
p->Cleanup(now);
}
}
cSchedules::Dump();
}
static cEpgDataWriter EpgDataWriter;
// --- cSchedulesLock --------------------------------------------------------
cSchedulesLock::cSchedulesLock(bool WriteLock, int TimeoutMs)
{
locked = cSchedules::schedules.rwlock.Lock(WriteLock, TimeoutMs);
}
cSchedulesLock::~cSchedulesLock()
{
if (locked)
cSchedules::schedules.rwlock.Unlock();
}
// --- cSchedules ------------------------------------------------------------
cSchedules cSchedules::schedules;
char *cSchedules::epgDataFileName = NULL;
time_t cSchedules::lastDump = time(NULL);
time_t cSchedules::modified = 0;
const cSchedules *cSchedules::Schedules(cSchedulesLock &SchedulesLock)
{
return SchedulesLock.Locked() ? &schedules : NULL;
}
void cSchedules::SetEpgDataFileName(const char *FileName)
{
free(epgDataFileName);
epgDataFileName = FileName ? strdup(FileName) : NULL;
}
void cSchedules::SetModified(cSchedule *Schedule)
{
Schedule->SetModified();
modified = time(NULL);
}
void cSchedules::Cleanup(bool Force)
{
if (Force)
lastDump = 0;
time_t now = time(NULL);
if (now - lastDump > EPGDATAWRITEDELTA) {
if (epgDataFileName) {
if (Force)
EpgDataWriter.Perform();
else if (!EpgDataWriter.Active())
EpgDataWriter.Start();
}
lastDump = now;
}
}
void cSchedules::ResetVersions(void)
{
cSchedulesLock SchedulesLock(true);
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
for (cSchedule *Schedule = s->First(); Schedule; Schedule = s->Next(Schedule))
Schedule->ResetVersions();
}
}
bool cSchedules::ClearAll(void)
{
cSchedulesLock SchedulesLock(true, 1000);
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
for (cTimer *Timer = Timers.First(); Timer; Timer = Timers.Next(Timer))
Timer->SetEvent(NULL);
for (cSchedule *Schedule = s->First(); Schedule; Schedule = s->Next(Schedule))
Schedule->Cleanup(INT_MAX);
return true;
}
return false;
}
bool cSchedules::Dump(FILE *f, const char *Prefix, eDumpMode DumpMode, time_t AtTime)
{
cSchedulesLock SchedulesLock;
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
cSafeFile *sf = NULL;
if (!f) {
sf = new cSafeFile(epgDataFileName);
if (sf->Open())
f = *sf;
else {
LOG_ERROR;
delete sf;
return false;
}
}
for (cSchedule *p = s->First(); p; p = s->Next(p))
p->Dump(f, Prefix, DumpMode, AtTime);
if (sf) {
sf->Close();
delete sf;
}
return true;
}
return false;
}
bool cSchedules::Read(FILE *f)
{
cSchedulesLock SchedulesLock(true, 1000);
cSchedules *s = (cSchedules *)Schedules(SchedulesLock);
if (s) {
bool OwnFile = f == NULL;
if (OwnFile) {
if (epgDataFileName && access(epgDataFileName, R_OK) == 0) {
dsyslog("reading EPG data from %s", epgDataFileName);
if ((f = fopen(epgDataFileName, "r")) == NULL) {
LOG_ERROR;
return false;
}
}
else
return false;
}
bool result = cSchedule::Read(f, s);
if (OwnFile)
fclose(f);
if (result) {
// Initialize the channels' schedule pointers, so that the first WhatsOn menu will come up faster:
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel))
s->GetSchedule(Channel);
}
return result;
}
return false;
}
cSchedule *cSchedules::AddSchedule(tChannelID ChannelID)
{
ChannelID.ClrRid();
cSchedule *p = (cSchedule *)GetSchedule(ChannelID);
if (!p) {
p = new cSchedule(ChannelID);
Add(p);
cChannel *channel = Channels.GetByChannelID(ChannelID);
if (channel)
channel->schedule = p;
}
return p;
}
const cSchedule *cSchedules::GetSchedule(tChannelID ChannelID) const
{
ChannelID.ClrRid();
for (cSchedule *p = First(); p; p = Next(p)) {
if (p->ChannelID() == ChannelID)
return p;
}
return NULL;
}
const cSchedule *cSchedules::GetSchedule(const cChannel *Channel, bool AddIfMissing) const
{
// This is not very beautiful, but it dramatically speeds up the
// "What's on now/next?" menus.
static cSchedule DummySchedule(tChannelID::InvalidID);
if (!Channel->schedule)
Channel->schedule = GetSchedule(Channel->GetChannelID());
if (!Channel->schedule)
Channel->schedule = &DummySchedule;
if (Channel->schedule == &DummySchedule && AddIfMissing) {
cSchedule *Schedule = new cSchedule(Channel->GetChannelID());
((cSchedules *)this)->Add(Schedule);
Channel->schedule = Schedule;
}
return Channel->schedule != &DummySchedule? Channel->schedule : NULL;
}
// --- cEpgDataReader --------------------------------------------------------
cEpgDataReader::cEpgDataReader(void)
:cThread("epg data reader")
{
}
void cEpgDataReader::Action(void)
{
cSchedules::Read();
}
// --- cEpgHandler -----------------------------------------------------------
cEpgHandler::cEpgHandler(void)
{
EpgHandlers.Add(this);
}
cEpgHandler::~cEpgHandler()
{
EpgHandlers.Del(this, false);
}
// --- cEpgHandlers ----------------------------------------------------------
cEpgHandlers EpgHandlers;
bool cEpgHandlers::IgnoreChannel(const cChannel *Channel)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->IgnoreChannel(Channel))
return true;
}
return false;
}
bool cEpgHandlers::HandleEitEvent(cSchedule *Schedule, const SI::EIT::Event *EitEvent, uchar TableID, uchar Version)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->HandleEitEvent(Schedule, EitEvent, TableID, Version))
return true;
}
return false;
}
bool cEpgHandlers::HandledExternally(const cChannel *Channel)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->HandledExternally(Channel))
return true;
}
return false;
}
bool cEpgHandlers::IsUpdate(tEventID EventID, time_t StartTime, uchar TableID, uchar Version)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->IsUpdate(EventID, StartTime, TableID, Version))
return true;
}
return false;
}
void cEpgHandlers::SetEventID(cEvent *Event, tEventID EventID)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetEventID(Event, EventID))
return;
}
Event->SetEventID(EventID);
}
void cEpgHandlers::SetTitle(cEvent *Event, const char *Title)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetTitle(Event, Title))
return;
}
Event->SetTitle(Title);
}
void cEpgHandlers::SetShortText(cEvent *Event, const char *ShortText)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetShortText(Event, ShortText))
return;
}
Event->SetShortText(ShortText);
}
void cEpgHandlers::SetDescription(cEvent *Event, const char *Description)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetDescription(Event, Description))
return;
}
Event->SetDescription(Description);
}
void cEpgHandlers::SetContents(cEvent *Event, uchar *Contents)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetContents(Event, Contents))
return;
}
Event->SetContents(Contents);
}
void cEpgHandlers::SetParentalRating(cEvent *Event, int ParentalRating)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetParentalRating(Event, ParentalRating))
return;
}
Event->SetParentalRating(ParentalRating);
}
void cEpgHandlers::SetStartTime(cEvent *Event, time_t StartTime)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetStartTime(Event, StartTime))
return;
}
Event->SetStartTime(StartTime);
}
void cEpgHandlers::SetDuration(cEvent *Event, int Duration)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetDuration(Event, Duration))
return;
}
Event->SetDuration(Duration);
}
void cEpgHandlers::SetVps(cEvent *Event, time_t Vps)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetVps(Event, Vps))
return;
}
Event->SetVps(Vps);
}
void cEpgHandlers::SetComponents(cEvent *Event, cComponents *Components)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SetComponents(Event, Components))
return;
}
Event->SetComponents(Components);
}
void cEpgHandlers::FixEpgBugs(cEvent *Event)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->FixEpgBugs(Event))
return;
}
Event->FixEpgBugs();
}
void cEpgHandlers::HandleEvent(cEvent *Event)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->HandleEvent(Event))
break;
}
}
void cEpgHandlers::SortSchedule(cSchedule *Schedule)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->SortSchedule(Schedule))
return;
}
Schedule->Sort();
}
void cEpgHandlers::DropOutdated(cSchedule *Schedule, time_t SegmentStart, time_t SegmentEnd, uchar TableID, uchar Version)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->DropOutdated(Schedule, SegmentStart, SegmentEnd, TableID, Version))
return;
}
Schedule->DropOutdated(SegmentStart, SegmentEnd, TableID, Version);
}
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