Version 1.3.0vdr-1.3.0

- Changed thread handling to make it work with NPTL ("Native Posix Thread Library").
  Thanks to Jon Burgess, Andreas Schultz, Werner Fink and Stefan Huelswitt.
- The cThread class now accepts a 'Description' parameter, which is used to log
  the beginning and end of the thread, together with its process and thread id.
  For descriptions that need additional parameters you can use the function
  cThread::SetDescription(), which accepts 'printf()' like arguments.
  Existing plugins that use threads should be changed to use this functionality
  instead of explicit 'dsyslog()' calls inside their Action() function in order
  to support logging the thread ids.
- Added "Slovak Link" and "Czech Link" to 'ca.conf' (thanks to Emil Petersky).
  However, 'ca.conf' is now pretty much obsolete due to the automatic CA handling.
- Mutexes are now created with PTHREAD_MUTEX_ERRORCHECK_NP, which makes the
  'lockingTid' stuff obsolete (thanks to Stefan Huelswitt).
- Changed font handling to allow language specific character sets.
- Adopted the small font character set from the "Elchi" patch (originally
  provided by Alessio Sangalli).
- Greek language texts now use iso8859-7 character set (thanks to Dimitrios
  Dimitrakos).
- Rearranged section data handling, so that the actual data handling can be done
  separately, even from within plugins.
- The EPG data structures have been moved from eit.[hc] to epg.[hc] and have been
  adapted to the general VDR coding style. Plugins that use these data structures
  may need to change some function names (which should be obvious).
  The name 'subtitle' has been changed to 'shortText' to avoid clashes with actual
  subtitles that are part of a movie. The name 'extendedDescription' has been
  shortened to 'description'.
- Replaced 'libdtv' with 'libsi' (thanks to Marcel Wiesweg), which is thread
  safe and can be used by multiple section filters simultaneously.
- Added 'cRwLock' to 'thread.[hc]'. Note that all plugin Makefiles need to
  define _GNU_SOURCE for this to work (see the example plugin Makefiles and
  'newplugin').
- Fixed a problem with crc32 in SI handling on 64bit systems (thanks to Pedro
  Miguel Sequeira de Justo Teixeira for reporting this one).
- Fixed an alignment problem in CAM access on 64bit systems  (thanks to Pedro
  Miguel Sequeira de Justo Teixeira for reporting this one).
- Added 'StreamType' setting to CAM communication, which is important for
  Aston/SECA CAMs (thanks to Antonino Sergi).
- Now the CA descriptors are sent to the CAM in the 'program' or 'ES level'
  sections, depending on where they are found in the PMT (thanks to Hans-Peter
  Raschke for reporting this one). This should make SkyCrypt CAMs work.
- Now using the 'version number' of EPG events to avoid unnecessary work.
- Channel data is now automatically derived from the DVB data stream (inspired
  by the 'autopid' patch from Andreas Schultz).
- The current channel is now automatically re-tuned if the PIDs or other settings
  change. If a recording is going on on a channel that has a change in its
  settings, the recording will be stopped and immediately restarted to use the
  new channel settings.
- EPG events now use the complete channel ID with NID, TID and SID.
- Channel names in 'channels.conf' can now have a short form, as provided
  by some tv stations (see man vdr(5)). Currently channels that provide short
  names in addition to long ones are listed in the OSD as "short,long name",
  as in "RTL,RTL Television". The short names will be used explicitly later.
- The Ca parameter in 'channels.conf' has been extended and now contains all the
  CA system ids for the given channel. When switching to a channel VDR now tests
  for a device that provides one of these CA system ids. The devices automatically
  get their supported ids from the CI handler.
- The values in 'ca.conf' are currently without any real meaning. Whether or not
  a channel with conditional access can be received is now determined automatically
  by evaluating its CA descriptors and comparing them to the CA system ids
  provided by the installed CAM. Only the special values 1-16 are used to assign
  a channel to a particular device.
- Increased the maximum number of possible OSD colors to 256.
- Limited the line length in the EPG bugfix report, which appears to fix a buffer
  overflow that caused a crash when cleaning up the EPG data (at 05:00 in the
  morning).

1 files changed, 415 insertions, 0 deletions

diff --git a/libsi/si.c b/libsi/si.c
new file mode 100644
index 0000000..bcf519a
--- /dev/null
+++ b/libsi/si.c
@@ -0,0 +1,415 @@
+/***************************************************************************
+ *       Copyright (c) 2003 by Marcel Wiesweg                              *
+ *                                                                         *
+ *   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: si.c 1.3 2004/01/04 14:26:53 kls Exp $
+ *                                                                         *
+ ***************************************************************************/
+
+#include <string.h>
+#include "si.h"
+#include "descriptor.h"
+
+namespace SI {
+
+Object::Object() {
+}
+
+Object::Object(CharArray &d) : data(d) {
+}
+
+void Object::setData(const unsigned char*d, unsigned int size, bool doCopy) {
+   data.assign(d, size, doCopy);
+}
+
+void Object::setData(CharArray &d) {
+   data=d;
+}
+
+Section::Section(const unsigned char *data, bool doCopy) {
+   setData(data, getLength(data), doCopy);
+}
+
+TableId Section::getTableId() const {
+   return getTableId(data.getData());
+}
+
+int Section::getLength() {
+   return getLength(data.getData());
+}
+
+TableId Section::getTableId(const unsigned char *d) {
+   return (TableId)((const SectionHeader *)d)->table_id;
+}
+
+int Section::getLength(const unsigned char *d) {
+   return HILO(((const SectionHeader *)d)->section_length)+sizeof(SectionHeader);
+}
+
+bool CRCSection::isValid() {
+   return CRC32::isValid((const char *)data.getData(), getLength()/*, data.FourBytes(getLength()-4)*/);
+}
+
+bool CRCSection::CheckCRCAndParse() {
+   if (!isValid())
+      return false;
+   CheckParse();
+   return true;
+}
+
+bool NumberedSection::getCurrentNextIndicator() const {
+   return data.getData<ExtendedSectionHeader>()->current_next_indicator;
+}
+
+int NumberedSection::getVersionNumber() const {
+   return data.getData<ExtendedSectionHeader>()->version_number;
+}
+
+int NumberedSection::getSectionNumber() const {
+   return data.getData<ExtendedSectionHeader>()->section_number;
+}
+
+int NumberedSection::getLastSectionNumber() const {
+   return data.getData<ExtendedSectionHeader>()->last_section_number;
+}
+
+int Descriptor::getLength() {
+   return getLength(data.getData());
+}
+
+DescriptorTag Descriptor::getDescriptorTag() const {
+   return getDescriptorTag(data.getData());
+}
+
+int Descriptor::getLength(const unsigned char *d) {
+   return ((const DescriptorHeader*)d)->descriptor_length+sizeof(DescriptorHeader);
+}
+
+DescriptorTag Descriptor::getDescriptorTag(const unsigned char *d) {
+   return (DescriptorTag)((const DescriptorHeader*)d)->descriptor_tag;
+}
+
+Descriptor *DescriptorLoop::getNext(Iterator &it) {
+   if (it.i<getLength()) {
+      return createDescriptor(it.i);
+   }
+   return 0;
+}
+
+Descriptor *DescriptorLoop::getNext(Iterator &it, DescriptorTag tag, bool returnUnimplemetedDescriptor) {
+   Descriptor *d=0;
+   if (it.i<getLength()) {
+      const unsigned char *p=data.getData(it.i);
+      const unsigned char *end=p+getLength();
+      while (p < end) {
+         if (Descriptor::getDescriptorTag(p) == tag) {
+            d=createDescriptor(it.i);
+            break;
+         }
+         it.i+=Descriptor::getLength(p);
+         p+=Descriptor::getLength(p);
+      }
+   }
+   if (d && d->getDescriptorTag()==UnimplementedDescriptorTag)
+      return returnUnimplemetedDescriptor ? d : 0;
+   return d;
+}
+
+Descriptor *DescriptorLoop::getNext(Iterator &it, DescriptorTag *tags, int arrayLength, bool returnUnimplemetedDescriptor) {
+   Descriptor *d=0;
+   if (it.i<getLength()) {
+      const unsigned char *p=data.getData(it.i);
+      const unsigned char *end=p+getLength();
+      while (p < end) {
+         for (int u=0; u<arrayLength;u++)
+            if (Descriptor::getDescriptorTag(p) == tags[u]) {
+               d=createDescriptor(it.i);
+               break;
+            }
+         if (d)
+            break;
+         it.i+=Descriptor::getLength(p);
+         p+=Descriptor::getLength(p);
+      }
+   }
+   if (d && d->getDescriptorTag()==UnimplementedDescriptorTag)
+      return returnUnimplemetedDescriptor ? d : 0;
+   return d;
+}
+
+Descriptor *DescriptorLoop::createDescriptor(int &i) {
+   Descriptor *d=Descriptor::getDescriptor(data+i, domain);
+   i+=d->getLength();
+   d->CheckParse();
+   return d;
+}
+
+DescriptorGroup::DescriptorGroup(bool del) {
+   array=0;
+   length=0;
+   deleteOnDesctruction=del;
+}
+
+DescriptorGroup::~DescriptorGroup() {
+   if (deleteOnDesctruction)
+      Delete();
+   delete[] array;
+}
+
+void DescriptorGroup::Delete() {
+   for (int i=0;i<length;i++)
+      if (array[i]!=0) {
+         delete array[i];
+         array[i]=0;
+      }
+}
+
+void DescriptorGroup::Add(GroupDescriptor *d) {
+   if (!array) {
+      length=d->getLastDescriptorNumber()+1;
+      array=new GroupDescriptor*[length]; //numbering is zero-based
+      for (int i=0;i<length;i++)
+         array[i]=0;
+   } else if (length != d->getLastDescriptorNumber()+1)
+      return; //avoid crash in case of misuse
+   array[d->getDescriptorNumber()]=d;
+}
+
+bool DescriptorGroup::isComplete() {
+   for (int i=0;i<length;i++)
+      if (array[i]==0)
+         return false;
+   return true;
+}
+
+char *String::getText() {
+   if (getLength() < 0 || getLength() >4095)
+      return "text error";
+   char *data=new char(getLength()+1);
+   decodeText(data);
+   return data;
+}
+
+char *String::getText(char *buffer) {
+   if (getLength() < 0 || getLength() >4095) {
+      strncpy(buffer, "text error", getLength()+1);
+      return buffer;
+   }
+   decodeText(buffer);
+   return buffer;
+}
+
+//taken from libdtv, Copyright Rolf Hakenes <hakenes@hippomi.de>
+void String::decodeText(char *buffer) {
+   const unsigned char *from=data.getData(0);
+   char *to=buffer;
+
+   /* Disable detection of coding tables - libdtv doesn't do it either
+   if ( (0x01 <= *from) && (*from <= 0x1f) ) {
+      codeTable=*from
+   }
+   */
+
+   for (int i = 0; i < getLength(); i++) {
+      if (*from == 0)
+         break;
+      if (    ((' ' <= *from) && (*from <= '~'))
+           || (*from == '\n')
+           || ((0xA0 <= *from) && (*from <= 0xFF))
+         )
+         *to++ = *from;
+      else if (*from == 0x8A)
+         *to++ = '\n';
+      else if (*from == 0x86 || *from == 0x87) //&& !(GDT_NAME_DESCRIPTOR & type))
+         *to++ = *from;
+      from++;
+   }
+   *to = '\0';
+}
+
+Descriptor *Descriptor::getDescriptor(CharArray da, DescriptorTagDomain domain) {
+   Descriptor *d=0;
+   switch (domain) {
+   case SI:
+      switch ((DescriptorTag)da.getData<DescriptorHeader>()->descriptor_tag) {
+         case CaDescriptorTag:
+            d=new CaDescriptor();
+            break;
+         case CarouselIdentifierDescriptorTag:
+            d=new CarouselIdentifierDescriptor();
+            break;
+         case NetworkNameDescriptorTag:
+            d=new NetworkNameDescriptor();
+            break;
+         case ServiceListDescriptorTag:
+            d=new ServiceListDescriptor();
+            break;
+         case SatelliteDeliverySystemDescriptorTag:
+            d=new SatelliteDeliverySystemDescriptor();
+            break;
+         case CableDeliverySystemDescriptorTag:
+            d=new CableDeliverySystemDescriptor();
+            break;
+         case TerrestrialDeliverySystemDescriptorTag:
+            d=new TerrestrialDeliverySystemDescriptor();
+            break;
+         case BouquetNameDescriptorTag:
+            d=new BouquetNameDescriptor();
+            break;
+         case ServiceDescriptorTag:
+            d=new ServiceDescriptor();
+            break;
+         case NVODReferenceDescriptorTag:
+            d=new NVODReferenceDescriptor();
+            break;
+         case TimeShiftedServiceDescriptorTag:
+            d=new TimeShiftedServiceDescriptor();
+            break;
+         case ComponentDescriptorTag:
+            d=new ComponentDescriptor();
+            break;
+         case StreamIdentifierDescriptorTag:
+            d=new StreamIdentifierDescriptor();
+            break;
+         case SubtitlingDescriptorTag:
+            d=new SubtitlingDescriptor();
+            break;
+         case MultilingualNetworkNameDescriptorTag:
+            d=new MultilingualNetworkNameDescriptor();
+            break;
+         case MultilingualBouquetNameDescriptorTag:
+            d=new MultilingualBouquetNameDescriptor();
+            break;
+         case MultilingualServiceNameDescriptorTag:
+            d=new MultilingualServiceNameDescriptor();
+            break;
+         case MultilingualComponentDescriptorTag:
+            d=new MultilingualComponentDescriptor();
+            break;
+         case ServiceMoveDescriptorTag:
+            d=new ServiceMoveDescriptor();
+            break;
+         case FrequencyListDescriptorTag:
+            d=new FrequencyListDescriptor();
+            break;
+         case ServiceIdentifierDescriptorTag:
+            d=new ServiceIdentifierDescriptor();
+            break;
+         case CaIdentifierDescriptorTag:
+            d=new CaIdentifierDescriptor();
+            break;
+         case ShortEventDescriptorTag:
+            d=new ShortEventDescriptor();
+            break;
+         case ExtendedEventDescriptorTag:
+            d=new ExtendedEventDescriptor();
+            break;
+         case TimeShiftedEventDescriptorTag:
+            d=new TimeShiftedEventDescriptor();
+            break;
+         case ContentDescriptorTag:
+            d=new ContentDescriptor();
+            break;
+         case ParentalRatingDescriptorTag:
+            d=new ParentalRatingDescriptor();
+            break;
+         case ApplicationSignallingDescriptorTag:
+            d=new ApplicationSignallingDescriptor();
+            break;
+
+         //note that it is no problem to implement one
+         //of the unimplemented descriptors.
+
+         //defined in ISO-13818-1
+         case VideoStreamDescriptorTag:
+         case AudioStreamDescriptorTag:
+         case HierarchyDescriptorTag:
+         case RegistrationDescriptorTag:
+         case DataStreamAlignmentDescriptorTag:
+         case TargetBackgroundGridDescriptorTag:
+         case VideoWindowDescriptorTag:
+         case ISO639LanguageDescriptorTag:
+         case SystemClockDescriptorTag:
+         case MultiplexBufferUtilizationDescriptorTag:
+         case CopyrightDescriptorTag:
+         case MaximumBitrateDescriptorTag:
+         case PrivateDataIndicatorDescriptorTag:
+         case SmoothingBufferDescriptorTag:
+         case STDDescriptorTag:
+         case IBPDescriptorTag:
+
+         //defined in ETSI EN 300 468
+         case StuffingDescriptorTag:
+         case VBIDataDescriptorTag:
+         case VBITeletextDescriptorTag:
+         case CountryAvailabilityDescriptorTag:
+         case MocaicDescriptorTag:
+         case LinkageDescriptorTag:
+         case TeletextDescriptorTag:
+         case TelephoneDescriptorTag:
+         case LocalTimeOffsetDescriptorTag:
+         case PrivateDataSpecifierDescriptorTag:
+         case CellListDescriptorTag:
+         case CellFrequencyLinkDescriptorTag:
+         case ServiceAvailabilityDescriptorTag:
+         case ShortSmoothingBufferDescriptorTag:
+         case PartialTransportStreamDescriptorTag:
+         case DataBroadcastDescriptorTag:
+         case DataBroadcastIdDescriptorTag:
+         case CaSystemDescriptorTag:
+         case AC3DescriptorTag:
+         case DSNGDescriptorTag:
+         case PDCDescriptorTag:
+         case AncillaryDataDescriptorTag:
+         case AnnouncementSupportDescriptorTag:
+         case AdaptationFieldDataDescriptorTag:
+         case TransportStreamDescriptorTag:
+         default:
+            d=new UnimplementedDescriptor();
+            break;
+      }
+      break;
+   case MHP:
+      switch ((DescriptorTag)da.getData<DescriptorHeader>()->descriptor_tag) {
+      // They once again start with 0x00 (see page 234, MHP specification)
+         case MHP_ApplicationDescriptorTag:
+            d=new MHP_ApplicationDescriptor();
+            break;
+         case MHP_ApplicationNameDescriptorTag:
+            d=new MHP_ApplicationNameDescriptor();
+            break;
+         case MHP_TransportProtocolDescriptorTag:
+            d=new MHP_TransportProtocolDescriptor();
+            break;
+         case MHP_DVBJApplicationDescriptorTag:
+            d=new MHP_DVBJApplicationDescriptor();
+            break;
+         case MHP_DVBJApplicationLocationDescriptorTag:
+            d=new MHP_DVBJApplicationLocationDescriptor();
+            break;
+      // 0x05 - 0x0A is unimplemented this library
+         case MHP_ExternalApplicationAuthorisationDescriptorTag:
+         case MHP_IPv4RoutingDescriptorTag:
+         case MHP_IPv6RoutingDescriptorTag:
+         case MHP_DVBHTMLApplicationDescriptorTag:
+         case MHP_DVBHTMLApplicationLocationDescriptorTag:
+         case MHP_DVBHTMLApplicationBoundaryDescriptorTag:
+         case MHP_ApplicationIconsDescriptorTag:
+         case MHP_PrefetchDescriptorTag:
+         case MHP_DelegatedApplicationDescriptorTag:
+         case MHP_ApplicationStorageDescriptorTag:
+         default:
+            d=new UnimplementedDescriptor();
+            break;
+      }
+      break;
+   }
+   d->setData(da);
+   return d;
+}
+
+} //end of namespace