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vdr/epg.c

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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 5.1 2021/01/04 09:05:26 kls Exp $
*/
#include "epg.h"
#include <ctype.h>
#include <limits.h>
#include <time.h>
#include "libsi/si.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 %m[^\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 ----------------------------------------------------------------
cMutex cEvent::numTimersMutex;
cEvent::cEvent(tEventID EventID)
{
schedule = NULL;
numTimers = 0;
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;
aux = NULL;
SetSeen();
}
cEvent::~cEvent()
{
free(title);
free(shortText);
free(description);
free(aux);
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, const cChannel *Channel)
{
if (Channel && runningStatus != RunningStatus && (RunningStatus > SI::RunningStatusNotRunning || runningStatus > SI::RunningStatusUndefined) && schedule && schedule->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);
}
void cEvent::SetAux(const char *Aux)
{
free(aux);
aux = Aux ? strdup(Aux) : 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());
}
void cEvent::IncNumTimers(void) const
{
numTimersMutex.Lock();
numTimers++;
if (schedule)
schedule->IncNumTimers();
numTimersMutex.Unlock();
}
void cEvent::DecNumTimers(void) const
{
numTimersMutex.Lock();
numTimers--;
if (schedule)
schedule->DecNumTimers();
numTimersMutex.Unlock();
}
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 && !isempty(aux)) {
strreplace(aux, '\n', '|');
fprintf(f, "%s@ %s\n", Prefix, aux);
strreplace(aux, '|', '\n');
}
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;
case '@': strreplace(t, '|', '\n');
SetAux(t);
break;
default: esyslog("ERROR: unexpected tag while reading EPG data: %s", s);
return false;
}
return true;
}
bool cEvent::Read(FILE *f, cSchedule *Schedule, int &Line)
{
if (Schedule) {
cEvent *Event = NULL;
char *s;
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;
LOCK_CHANNELS_READ;
for (int c = 0; c < p->n; c++) {
if (const cChannel *Channel = Channels->GetByChannelID(p->channelIDs[c], true)) {
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 || *p == 0x0D) {
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 -------------------------------------------------------------
cMutex cSchedule::numTimersMutex;
cSchedule::cSchedule(tChannelID ChannelID)
{
channelID = ChannelID;
events.SetUseGarbageCollector();
numTimers = 0;
hasRunning = false;
modified = 0;
presentSeen = 0;
}
void cSchedule::IncNumTimers(void) const
{
numTimersMutex.Lock();
numTimers++;
numTimersMutex.Unlock();
}
void cSchedule::DecNumTimers(void) const
{
numTimersMutex.Lock();
numTimers--;
numTimersMutex.Unlock();
}
cEvent *cSchedule::AddEvent(cEvent *Event)
{
events.Add(Event);
Event->schedule = this;
HashEvent(Event);
return Event;
}
void cSchedule::DelEvent(cEvent *Event)
{
if (Event->schedule == this) {
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 (const 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 (const 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, const 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, Channel);
if (p->RunningStatus() >= SI::RunningStatusPausing)
hasRunning = true;
}
SetPresentSeen();
}
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);
}
}
SetModified();
}
void cSchedule::DropOutdated(time_t SegmentStart, time_t SegmentEnd, uchar TableID, uchar Version)
{
if (SegmentStart > 0 && SegmentEnd > 0) {
cEvent *p = events.First();
while (p) {
cEvent *n = 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.
DelEvent(p);
}
}
else
break;
}
p = n;
}
}
}
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 < Time)
DelEvent(Event);
else
break;
}
}
void cSchedule::Dump(const cChannels *Channels, FILE *f, const char *Prefix, eDumpMode DumpMode, time_t AtTime) const
{
if (const cChannel *Channel = Channels->GetByChannelID(channelID, true)) {
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) {
int Line = 0;
cReadLine ReadLine;
char *s;
while ((s = ReadLine.Read(f)) != NULL) {
Line++;
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()) {
if (cSchedule *p = Schedules->AddSchedule(channelID)) {
if (!cEvent::Read(f, p, Line))
return false;
p->Sort();
}
}
else {
esyslog("ERROR: invalid channel ID: %s", s);
return false;
}
}
}
else {
esyslog("ERROR: unexpected tag in line %d while reading EPG data: %s", Line, s);
return false;
}
}
return true;
}
return false;
}
// --- cEpgDataWriter --------------------------------------------------------
class cEpgDataWriter : public cThread {
private:
cMutex mutex;
bool dump;
protected:
virtual void Action(void);
public:
cEpgDataWriter(void);
void SetDump(bool Dump) { dump = Dump; }
void Perform(void);
};
cEpgDataWriter::cEpgDataWriter(void)
:cThread("epg data writer", true)
{
dump = false;
}
void cEpgDataWriter::Action(void)
{
Perform();
}
void cEpgDataWriter::Perform(void)
{
cMutexLock MutexLock(&mutex); // to make sure fore- and background calls don't cause parellel dumps!
{
cStateKey StateKey;
if (cSchedules *Schedules = cSchedules::GetSchedulesWrite(StateKey, 1000)) {
time_t now = time(NULL);
for (cSchedule *p = Schedules->First(); p; p = Schedules->Next(p))
p->Cleanup(now);
StateKey.Remove();
}
}
if (dump)
cSchedules::Dump();
}
static cEpgDataWriter EpgDataWriter;
// --- cSchedules ------------------------------------------------------------
cSchedules cSchedules::schedules;
char *cSchedules::epgDataFileName = NULL;
time_t cSchedules::lastDump = time(NULL);
cSchedules::cSchedules(void)
:cList<cSchedule>("5 Schedules")
{
}
const cSchedules *cSchedules::GetSchedulesRead(cStateKey &StateKey, int TimeoutMs)
{
return schedules.Lock(StateKey, false, TimeoutMs) ? &schedules : NULL;
}
cSchedules *cSchedules::GetSchedulesWrite(cStateKey &StateKey, int TimeoutMs)
{
return schedules.Lock(StateKey, true, TimeoutMs) ? &schedules : NULL;
}
void cSchedules::SetEpgDataFileName(const char *FileName)
{
free(epgDataFileName);
epgDataFileName = FileName ? strdup(FileName) : NULL;
EpgDataWriter.SetDump(epgDataFileName != NULL);
}
void cSchedules::Cleanup(bool Force)
{
if (Force)
lastDump = 0;
time_t now = time(NULL);
if (now - lastDump > EPGDATAWRITEDELTA) {
if (Force)
EpgDataWriter.Perform();
else if (!EpgDataWriter.Active())
EpgDataWriter.Start();
lastDump = now;
}
}
void cSchedules::ResetVersions(void)
{
LOCK_SCHEDULES_WRITE;
for (cSchedule *Schedule = Schedules->First(); Schedule; Schedule = Schedules->Next(Schedule))
Schedule->ResetVersions();
}
bool cSchedules::Dump(FILE *f, const char *Prefix, eDumpMode DumpMode, time_t AtTime)
{
cSafeFile *sf = NULL;
if (!f) {
sf = new cSafeFile(epgDataFileName);
if (sf->Open())
f = *sf;
else {
LOG_ERROR;
delete sf;
return false;
}
}
LOCK_CHANNELS_READ;
LOCK_SCHEDULES_READ;
for (const cSchedule *p = Schedules->First(); p; p = Schedules->Next(p))
p->Dump(Channels, f, Prefix, DumpMode, AtTime);
if (sf) {
sf->Close();
delete sf;
}
return true;
}
bool cSchedules::Read(FILE *f)
{
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;
}
LOCK_CHANNELS_WRITE;
LOCK_SCHEDULES_WRITE;
bool result = cSchedule::Read(f, Schedules);
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)) {
if (const cSchedule *Schedule = Channel->schedule) {
if (!Schedule->ChannelID().Valid()) // this is the DummySchedule
Channel->schedule = NULL;
}
Schedules->GetSchedule(Channel);
}
}
return result;
}
cSchedule *cSchedules::AddSchedule(tChannelID ChannelID)
{
ChannelID.ClrRid();
cSchedule *p = (cSchedule *)GetSchedule(ChannelID);
if (!p) {
p = new cSchedule(ChannelID);
Add(p);
}
return p;
}
const cSchedule *cSchedules::GetSchedule(tChannelID ChannelID) const
{
ChannelID.ClrRid();
for (const 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);
}
bool cEpgHandlers::BeginSegmentTransfer(const cChannel *Channel)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (!eh->BeginSegmentTransfer(Channel, false))
return false;
}
return true;
}
void cEpgHandlers::EndSegmentTransfer(bool Modified)
{
for (cEpgHandler *eh = First(); eh; eh = Next(eh)) {
if (eh->EndSegmentTransfer(Modified, false))
return;
}
}
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