Added 'libsi'

libsi/Makefile

@@ -0,0 +1,57 @@
+#
+# Makefile for a Video Disk Recorder plugin
+#
+# $Id: Makefile 1.1 2003/11/22 17:56:12 kls Exp $
+
+VDRDIR = ../../../..
+
+### The C++ compiler and options:
+
+CXX      ?= g++
+CXXFLAGS ?= -O2 -g -Wall -Woverloaded-virtual
+AR = ar
+ARFLAGS = ru
+RANLIB = ranlib
+
+
+### The directory environment:
+
+
+INCLUDES += -I$(VDRDIR)/include -I..
+
+DEFINES += 
+
+LIBS +=
+
+### The object files (add further files here):
+
+OBJS = util.o si.o section.o descriptor.o
+
+### Implicit rules:
+
+%.o: %.c
+	$(CXX) $(CXXFLAGS) -c $(DEFINES) $(INCLUDES) $<
+
+# Dependencies:
+
+MAKEDEP = g++ -MM -MG
+DEPFILE = .dependencies
+$(DEPFILE): Makefile
+	@$(MAKEDEP) $(DEFINES) $(INCLUDES) $(OBJS:%.o=%.c) > $@
+
+-include $(DEPFILE)
+
+### Targets:
+
+all: libsi.a
+
+libsi.a : $(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+#	$(CXX) $(CXXFLAGS) -shared $(OBJS) $(LIBS) -o $@ 
+
+clean:
+	@-rm -f $(OBJS) $(DEPFILE) *.a *.so *.tgz core* *~
+   
+dist:
+	tar cvzf libsi.tar.gz -C .. libsi/util.c libsi/si.c libsi/section.c libsi/descriptor.c \
+   libsi/util.h libsi/si.h libsi/section.h libsi/descriptor.h libsi/headers.h libsi/Makefile libsi/gendescr.pl

libsi/descriptor.c

@@ -0,0 +1,742 @@
+/***************************************************************************
+ *       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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+ 
+#include <string.h>
+#include "descriptor.h"
+
+namespace SI {
+
+
+
+void ShortEventDescriptor::Parse() {
+   unsigned int offset=0;
+   const descr_short_event *s;
+   data.setPointerAndOffset<const descr_short_event>(s, offset);
+   languageCode[0]=s->lang_code1;
+   languageCode[1]=s->lang_code2;
+   languageCode[2]=s->lang_code3;
+   name.setDataAndOffset(data+offset, s->event_name_length, offset);
+   const descr_short_event_mid *mid;
+   data.setPointerAndOffset<const descr_short_event_mid>(mid, offset);
+   text.setData(data+offset, mid->text_length);
+}
+
+
+
+
+int ExtendedEventDescriptor::getDescriptorNumber() {
+   return s->descriptor_number;
+}
+
+int ExtendedEventDescriptor::getLastDescriptorNumber() {
+   return s->last_descriptor_number;
+}
+
+void ExtendedEventDescriptor::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const descr_extended_event>(s, offset);
+   languageCode[0]=s->lang_code1;
+   languageCode[1]=s->lang_code2;
+   languageCode[2]=s->lang_code3;
+   itemLoop.setDataAndOffset(data+offset, s->length_of_items, offset);
+   const descr_extended_event_mid *mid;
+   data.setPointerAndOffset<const descr_extended_event_mid>(mid, offset);
+   text.setData(data+offset, mid->text_length);
+}
+
+
+
+
+void ExtendedEventDescriptor::Item::Parse() {
+   unsigned int offset=0;
+   const item_extended_event *first;
+   data.setPointerAndOffset<const item_extended_event>(first, offset);
+   itemDescription.setDataAndOffset(data+offset, first->item_description_length, offset);
+   const item_extended_event_mid *mid;
+   data.setPointerAndOffset<const item_extended_event_mid>(mid, offset);
+   item.setData(data+offset, mid->item_length);
+}
+
+
+int ExtendedEventDescriptors::getTextLength() {
+   int ret=0;
+   for (int i=0;i<length;i++) {
+      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
+      if (!d)
+         continue;
+      ret+=d->text.getLength()+1; //plus a blank
+      ExtendedEventDescriptor::Item item;
+      for (Loop::Iterator it; d->itemLoop.hasNext(it);   ) {
+         item=d->itemLoop.getNext(it);
+         ret+=item.item.getLength();
+         ret+=item.itemDescription.getLength();
+         ret+=2; //the blanks
+      }
+   }
+   return ret;
+}
+
+//is there a case where this function does not return the same as getTextLength?
+int ExtendedEventDescriptors::getMaximumTextLength() {
+   int ret=0;
+   for (int i=0;i<length;i++) {
+      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
+      if (!d)
+         continue;
+      ret+=d->text.getLength()+1; //plus a blank
+      ret+=d->itemLoop.getLength();
+   }
+   return ret;
+}
+
+char *ExtendedEventDescriptors::getText() {
+   char *text=new char[getMaximumTextLength()];
+   return getText(text);
+}
+
+//appends the Strings of every Descriptor in the group
+char *ExtendedEventDescriptors::getText(char *buffer) {
+   int index=0, len;
+   char tempbuf[256];
+   for (int i=0;i<length;i++) {
+      ExtendedEventDescriptor *d=(ExtendedEventDescriptor *)array[i];
+      if (!d)
+         continue;
+      d->text.getText(tempbuf);
+      len=strlen(tempbuf);
+      if (len) {
+         memcpy(buffer+index, tempbuf, len);
+         index+=len;
+      }
+      
+      ExtendedEventDescriptor::Item item;
+      for (Loop::Iterator it; d->itemLoop.hasNext(it);   ) {
+         item=d->itemLoop.getNext(it);
+         
+         item.item.getText(tempbuf);
+         len=strlen(tempbuf);
+         if (len) {
+            memcpy(buffer+index, tempbuf, len);
+            index+=len;
+         }
+         
+         item.itemDescription.getText(tempbuf);
+         len=strlen(tempbuf);
+         if (len) {
+            memcpy(buffer+index, tempbuf, len);
+            index+=len;
+         }
+      }
+   }
+   buffer[index]='\0';
+   return buffer;
+}
+
+
+
+
+int TimeShiftedEventDescriptor::getReferenceServiceId() const {
+   return HILO(s->reference_service_id);
+}
+
+int TimeShiftedEventDescriptor::getReferenceEventId() const {
+   return HILO(s->reference_event_id);
+}
+
+void TimeShiftedEventDescriptor::Parse() {
+   s=data.getData<const descr_time_shifted_event>();
+}
+
+
+
+
+void ContentDescriptor::Parse() {
+   //this descriptor is only a header and a loop
+   nibbleLoop.setData(data+sizeof(SectionHeader), getLength()-sizeof(SectionHeader));
+}
+
+
+
+
+int ContentDescriptor::Nibble::getContentNibbleLevel1() const {
+   return s->content_nibble_level_1;
+}
+
+int ContentDescriptor::Nibble::getContentNibbleLevel2() const {
+   return s->content_nibble_level_2;
+}
+
+int ContentDescriptor::Nibble::getUserNibble1() const {
+   return s->user_nibble_1;
+}
+
+int ContentDescriptor::Nibble::getUserNibble2() const {
+   return s->user_nibble_2;
+}
+
+void ContentDescriptor::Nibble::Parse() {
+   s=data.getData<const nibble_content>();
+}
+
+
+
+
+void ParentalRatingDescriptor::Parse() {
+   //this descriptor is only a header and a loop
+   ratingLoop.setData(data+sizeof(SectionHeader), getLength()-sizeof(SectionHeader));
+}
+
+
+int ParentalRatingDescriptor::Rating::getRating() const {
+   return s->rating;
+}
+
+void ParentalRatingDescriptor::Rating::Parse() {
+   s=data.getData<const parental_rating>();
+   languageCode[0]=s->lang_code1;
+   languageCode[1]=s->lang_code2;
+   languageCode[2]=s->lang_code3;
+}
+
+
+
+
+int CaDescriptor::getCaType() const {
+   return HILO(s->CA_type);
+}
+
+int CaDescriptor::getCaPid() const {
+   return HILO(s->CA_PID);
+}
+
+void CaDescriptor::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const descr_ca>(s, offset);
+   privateData.assign(data.getData(offset), getLength()-offset);
+}
+
+
+
+int StreamIdentifierDescriptor::getComponentTag() const {
+   return s->component_tag;
+}
+
+void StreamIdentifierDescriptor::Parse() {
+   s=data.getData<const descr_stream_identifier>();
+}
+
+
+
+
+void NetworkNameDescriptor::Parse() {
+   name.setData(data+sizeof(descr_network_name), getLength()-sizeof(descr_network_name));
+}
+
+
+
+
+void CaIdentifierDescriptor::Parse() {
+   identifiers.setData(data+sizeof(descr_ca_identifier), getLength()-sizeof(descr_ca_identifier));
+}
+
+
+
+
+
+
+int CarouselIdentifierDescriptor::getCarouselId() const {
+   return (HILO(s->carousel_id_hi) << 16) | HILO(s->carousel_id_lo);
+}
+
+int CarouselIdentifierDescriptor::getFormatId() const {
+   return s->FormatId;
+}
+
+void CarouselIdentifierDescriptor::Parse() {
+   s=data.getData<const descr_carousel_identifier>();
+}
+
+
+
+
+void ServiceListDescriptor::Parse() {
+   serviceLoop.setData(data+sizeof(descr_service_list), getLength()-sizeof(descr_service_list));
+}
+
+
+
+
+int ServiceListDescriptor::Service::getServiceId() const {
+   return HILO(s->service_id);
+}
+
+int ServiceListDescriptor::Service::getServiceType() const {
+   return s->service_type;
+}
+
+void ServiceListDescriptor::Service::Parse() {
+   s=data.getData<const descr_service_list_loop>();
+}
+
+
+
+
+int SatelliteDeliverySystemDescriptor::getFrequency() const {
+   return (HILO(s->frequency_hi) << 16) | HILO(s->frequency_lo);
+}
+
+int SatelliteDeliverySystemDescriptor::getOrbitalPosition() const {
+   return HILO(s->orbital_position);
+}
+
+int SatelliteDeliverySystemDescriptor::getWestEastFlag() const {
+   return s->west_east_flag;
+}
+
+int SatelliteDeliverySystemDescriptor::getPolarization() const {
+   return s->polarization;
+}
+
+int SatelliteDeliverySystemDescriptor::getModulation() const {
+   return s->modulation;
+}
+
+int SatelliteDeliverySystemDescriptor::getSymbolRate() const {
+   return (HILO(s->symbol_rate_hi) << 12) | (s->symbol_rate_lo_1 << 4) | s->symbol_rate_lo_2;
+}
+
+int SatelliteDeliverySystemDescriptor::getFecInner() const {
+   return s->fec_inner;
+}
+
+void SatelliteDeliverySystemDescriptor::Parse() {
+   s=data.getData<const descr_satellite_delivery_system>();
+}
+
+
+
+
+int CableDeliverySystemDescriptor::getFrequency() const {
+   return (HILO(s->frequency_hi) << 16) | HILO(s->frequency_lo);
+}
+
+int CableDeliverySystemDescriptor::getFecOuter() const {
+   return s->fec_outer;
+}
+
+int CableDeliverySystemDescriptor::getModulation() const {
+   return s->modulation;
+}
+
+int CableDeliverySystemDescriptor::getSymbolRate() const {
+   return (HILO(s->symbol_rate_hi) << 12) | (s->symbol_rate_lo_1 << 4) | s->symbol_rate_lo_2;
+}
+
+int CableDeliverySystemDescriptor::getFecInner() const {
+   return s->fec_inner;
+}
+
+void CableDeliverySystemDescriptor::Parse() {
+   s=data.getData<const descr_cable_delivery_system>();
+}
+
+
+
+
+int TerrestrialDeliverySystemDescriptor::getFrequency() const {
+   return (HILO(s->frequency_hi) << 16) | HILO(s->frequency_lo);
+}
+
+int TerrestrialDeliverySystemDescriptor::getBandwidth() const {
+   return s->bandwidth;
+}
+
+int TerrestrialDeliverySystemDescriptor::getConstellation() const {
+   return s->constellation;
+}
+
+int TerrestrialDeliverySystemDescriptor::getHierarchy() const {
+   return s->hierarchy;
+}
+
+int TerrestrialDeliverySystemDescriptor::getCodeRateHP() const {
+   return s->code_rate_HP;
+}
+
+int TerrestrialDeliverySystemDescriptor::getCodeRateLP() const {
+   return s->code_rate_LP;
+}
+
+int TerrestrialDeliverySystemDescriptor::getGuardInterval() const {
+   return s->guard_interval;
+}
+
+int TerrestrialDeliverySystemDescriptor::getTransmissionMode() const {
+   return s->transmission_mode;
+}
+
+bool TerrestrialDeliverySystemDescriptor::getOtherFrequency() const {
+   return s->other_frequency_flag;
+}
+
+void TerrestrialDeliverySystemDescriptor::Parse() {
+   s=data.getData<const descr_terrestrial_delivery>();
+}
+
+
+
+
+int ServiceDescriptor::getServiceType() const {
+   return s->service_type;
+}
+
+void ServiceDescriptor::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const descr_service>(s, offset);
+   providerName.setDataAndOffset(data+offset, s->provider_name_length, offset);
+   const descr_service_mid *mid;
+   data.setPointerAndOffset<const descr_service_mid>(mid, offset);
+   serviceName.setData(data+offset, mid->service_name_length);
+}
+
+void NVODReferenceDescriptor::Parse() {
+   serviceLoop.setData(data+sizeof(descr_nvod_reference), getLength()-sizeof(descr_nvod_reference));
+}
+
+
+
+
+int NVODReferenceDescriptor::Service::getTransportStream() const {
+   return HILO(s->transport_stream_id);
+}
+
+int NVODReferenceDescriptor::Service::getOriginalNetworkId() const {
+   return HILO(s->original_network_id);
+}
+
+int NVODReferenceDescriptor::Service::getServiceId() const {
+   return HILO(s->service_id);
+}
+
+void NVODReferenceDescriptor::Service::Parse() {
+   s=data.getData<const item_nvod_reference>();
+}
+
+
+
+
+int TimeShiftedServiceDescriptor::getReferenceServiceId() const {
+   return HILO(s->reference_service_id);
+}
+
+void TimeShiftedServiceDescriptor::Parse() {
+   s=data.getData<const descr_time_shifted_service>();
+}
+
+
+
+
+int ComponentDescriptor::getStreamContent() const {
+   return s->stream_content;
+}
+
+int ComponentDescriptor::getComponentType() const {
+   return s->component_type;
+}
+
+int ComponentDescriptor::getComponentTag() const {
+   return s->component_tag;
+}
+
+void ComponentDescriptor::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const descr_component>(s, offset);
+   languageCode[0]=s->lang_code1;
+   languageCode[1]=s->lang_code2;
+   languageCode[2]=s->lang_code3;
+   description.setData(data+offset, getLength()-offset);
+}
+
+
+
+
+void SubtitlingDescriptor::Parse() {
+   subtitlingLoop.setData(data+sizeof(descr_subtitling), getLength()-sizeof(descr_subtitling));
+}
+
+
+
+
+int SubtitlingDescriptor::Subtitling::getSubtitlingType() const {
+   return s->subtitling_type;
+}
+
+int SubtitlingDescriptor::Subtitling::getCompositionPageId() const {
+   return HILO(s->composition_page_id);
+}
+
+int SubtitlingDescriptor::Subtitling::getAncillaryPageId() const {
+   return HILO(s->ancillary_page_id);
+}
+
+void SubtitlingDescriptor::Subtitling::Parse() {
+   s=data.getData<const item_subtitling>();
+}
+
+
+
+
+int ServiceMoveDescriptor::getNewOriginalNetworkId() const {
+   return HILO(s->new_original_network_id);
+}
+
+int ServiceMoveDescriptor::getNewTransportStreamId() const {
+   return HILO(s->new_transport_stream_id);
+}
+
+int ServiceMoveDescriptor::getNewServiceId() const {
+   return HILO(s->new_service_id);
+}
+
+void ServiceMoveDescriptor::Parse() {
+   s=data.getData<const descr_service_move>();
+}
+
+
+
+
+int FrequencyListDescriptor::getCodingType() const {
+   return s->coding_type;
+}
+
+void FrequencyListDescriptor::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const descr_frequency_list>(s, offset);
+   frequencies.setData(data+offset, getLength()-offset);
+}
+
+
+
+
+void ServiceIdentifierDescriptor::Parse() {
+   textualServiceIdentifier.setData(data+sizeof(descr_service_identifier), getLength()-sizeof(descr_service_identifier));
+}
+
+
+void MultilingualNameDescriptor::Parse() {
+   nameLoop.setData(data+sizeof(descr_multilingual_network_name), getLength()-sizeof(descr_multilingual_network_name));
+}
+
+
+void MultilingualNameDescriptor::Name::Parse() {
+   unsigned int offset=0;
+   const entry_multilingual_name *s;
+   data.setPointerAndOffset<const entry_multilingual_name>(s, offset);
+   languageCode[0]=s->lang_code1;
+   languageCode[1]=s->lang_code2;
+   languageCode[2]=s->lang_code3;
+   name.setData(data+offset, s->text_length);
+}
+
+
+int MultilingualComponentDescriptor::getComponentTag() const {
+   return s->component_tag;
+}
+
+void MultilingualComponentDescriptor::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const descr_multilingual_component>(s, offset);
+   nameLoop.setData(data+sizeof(descr_multilingual_component), getLength()-sizeof(descr_multilingual_component));   
+}
+
+
+
+
+void MultilingualServiceNameDescriptor::Parse() {
+   nameLoop.setData(data+sizeof(descr_multilingual_network_name), getLength()-sizeof(descr_multilingual_network_name));
+}
+
+
+
+
+void MultilingualServiceNameDescriptor::Name::Parse() {
+   unsigned int offset=0;
+   const entry_multilingual_name *s;
+   data.setPointerAndOffset<const entry_multilingual_name>(s, offset);
+   languageCode[0]=s->lang_code1;
+   languageCode[1]=s->lang_code2;
+   languageCode[2]=s->lang_code3;
+   providerName.setDataAndOffset(data+offset, s->text_length, offset);
+   const entry_multilingual_service_name_mid *mid;
+   data.setPointerAndOffset<const entry_multilingual_service_name_mid>(mid, offset);
+   name.setData(data+offset, mid->service_name_length);
+}
+
+
+
+
+void ApplicationSignallingDescriptor::Parse() {
+   entryLoop.setData(data+sizeof(descr_application_signalling), getLength()-sizeof(descr_application_signalling));
+}
+
+int ApplicationSignallingDescriptor::ApplicationEntryDescriptor::getApplicationType() const {
+   return HILO(s->application_type);
+}
+
+int ApplicationSignallingDescriptor::ApplicationEntryDescriptor::getAITVersionNumber() const {
+   return s->AIT_version_number;
+}
+
+void ApplicationSignallingDescriptor::ApplicationEntryDescriptor::Parse() {
+   s=data.getData<const application_signalling_entry>();
+}
+
+
+
+
+
+bool MHP_ApplicationDescriptor::isServiceBound() const {
+   return s->service_bound_flag;
+}
+
+int MHP_ApplicationDescriptor::getVisibility() const {
+   return s->visibility;
+}
+
+int MHP_ApplicationDescriptor::getApplicationPriority() const {
+   return s->application_priority;
+}
+
+
+void MHP_ApplicationDescriptor::Parse() {
+   unsigned int offset=0;
+   const descr_application *dapp;
+   data.setPointerAndOffset<const descr_application>(dapp, offset);
+   profileLoop.setDataAndOffset(data+offset, dapp->application_profiles_length, offset);
+   data.setPointerAndOffset<const descr_application_end>(s, offset);
+   transportProtocolLabels.setData(data+offset, getLength()-offset);
+}
+
+
+int MHP_ApplicationDescriptor::Profile::getApplicationProfile() const {
+      return HILO(s->application_profile);
+}
+
+int MHP_ApplicationDescriptor::Profile::getVersionMajor() const {
+      return s->version_major;
+}
+
+int MHP_ApplicationDescriptor::Profile::getVersionMinor() const {
+      return s->version_minor;
+}
+
+int MHP_ApplicationDescriptor::Profile::getVersionMicro() const {
+      return s->version_micro;
+}
+
+void MHP_ApplicationDescriptor::Profile::Parse() {
+   s=data.getData<application_profile_entry>();
+}
+
+
+
+void MHP_ApplicationNameDescriptor::Parse() {
+   nameLoop.setData(data+sizeof(descr_application_name), getLength()-sizeof(descr_application_name));
+}
+
+void MHP_ApplicationNameDescriptor::NameEntry::Parse() {
+   const descr_application_name_entry *s;
+   s=data.getData<const descr_application_name_entry>();
+   name.setData(data+sizeof(descr_application_name_entry), s->application_name_length);
+   languageCode[0]=s->lang_code1;
+   languageCode[1]=s->lang_code2;
+   languageCode[2]=s->lang_code3;
+}
+
+
+
+int MHP_TransportProtocolDescriptor::getProtocolId() const {
+   return HILO(s->protocol_id);
+}
+
+int MHP_TransportProtocolDescriptor::getProtocolLabel() const {
+   return s->transport_protocol_label;
+}
+
+bool MHP_TransportProtocolDescriptor::isRemote() const {
+   return remote;
+}
+
+int MHP_TransportProtocolDescriptor::getComponentTag() const {
+   return componentTag;
+}
+
+void MHP_TransportProtocolDescriptor::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const descr_transport_protocol>(s, offset);
+   if (getProtocolId() == ObjectCarousel) {
+      const transport_via_oc *oc;
+      data.setPointerAndOffset<const transport_via_oc>(oc, offset);
+      remote=oc->remote;
+      if (remote) {
+         const transport_via_oc_remote_end *rem;
+         data.setPointerAndOffset<const transport_via_oc_remote_end>(rem, offset);
+         componentTag=rem->component_tag;
+      } else {
+         const transport_via_oc_end *rem;
+         data.setPointerAndOffset<const transport_via_oc_end>(rem, offset);
+         componentTag=rem->component_tag;
+      }
+   } else { //unimplemented
+      remote=false;
+      componentTag=-1;
+   }
+}
+
+
+
+void MHP_DVBJApplicationDescriptor::Parse() {
+   applicationLoop.setData(data+sizeof(descr_dvbj_application), getLength()-sizeof(descr_dvbj_application));
+}
+
+void MHP_DVBJApplicationDescriptor::ApplicationEntry::Parse() {
+   const descr_dvbj_application_entry *entry=data.getData<const descr_dvbj_application_entry>();
+   parameter.setData(data+sizeof(descr_dvbj_application_entry), entry->parameter_length);
+}
+
+
+void MHP_DVBJApplicationLocationDescriptor::Parse() {
+   unsigned int offset=0;
+   const descr_dvbj_application_location *first;
+   data.setPointerAndOffset<const descr_dvbj_application_location>(first, offset);
+   baseDirectory.setDataAndOffset(data+offset, first->base_directory_length, offset);
+   const descr_dvbj_application_location_mid *mid;
+   data.setPointerAndOffset<const descr_dvbj_application_location_mid>(mid, offset);
+   classPath.setDataAndOffset(data+offset, mid->classpath_extension_length, offset);
+   initialClass.setData(data+offset, getLength()-offset);
+}
+
+
+int MHP_ApplicationIconsDescriptor::getIconFlags() const {
+   return HILO(s->icon_flags);
+}
+
+void MHP_ApplicationIconsDescriptor::Parse() {
+   unsigned int offset=0;
+   const descr_application_icons_descriptor *first;
+   data.setPointerAndOffset<const descr_application_icons_descriptor>(first, offset);
+   iconLocator.setDataAndOffset(data+offset, first->icon_locator_length, offset);
+   data.setPointerAndOffset<const descr_application_icons_descriptor_end>(s, offset);
+}
+
+} //end of namespace
+
+

libsi/descriptor.h

@@ -0,0 +1,492 @@
+/***************************************************************************
+ *       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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef LIBSI_DESCRIPTOR_H
+#define LIBSI_DESCRIPTOR_H
+
+#include "si.h"
+#include "headers.h"
+
+namespace SI {
+
+
+class ShortEventDescriptor : public Descriptor {
+public:
+   char languageCode[3];
+   String name; //name of the event
+   String text; //short description
+protected:
+   virtual void Parse();
+};
+
+class ExtendedEventDescriptor : public GroupDescriptor {
+public:
+   class Item : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(item_extended_event)+sizeof(item_extended_event_mid)+item.getLength()+itemDescription.getLength(); }
+      String item;
+      String itemDescription;
+   protected:
+      virtual void Parse();
+   };
+   char languageCode[3];
+   int getDescriptorNumber();
+   int getLastDescriptorNumber();
+   StructureLoop<Item> itemLoop;
+   String text;
+protected:
+   virtual void Parse();
+private:
+   const descr_extended_event *s;
+};
+
+class ExtendedEventDescriptors : public DescriptorGroup {
+public:
+     //don't use
+   int getTextLength();
+     //really fast
+   int getMaximumTextLength();
+   //same semantics as with SI::String
+   char *getText();
+   //buffer must at least be getTextLength(), getMaximumTextLength() is a good choice
+   char *getText(char *buffer); 
+};
+
+
+class TimeShiftedEventDescriptor : public Descriptor {
+public:
+   int getReferenceServiceId() const;
+   int getReferenceEventId() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_time_shifted_event *s;
+};
+
+class ContentDescriptor : public Descriptor {
+public:
+   class Nibble : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(nibble_content); }
+      int getContentNibbleLevel1() const;
+      int getContentNibbleLevel2() const;
+      int getUserNibble1() const;
+      int getUserNibble2() const;
+   protected:
+      virtual void Parse();
+   private:
+      const nibble_content *s;
+   };
+   StructureLoop<Nibble> nibbleLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class ParentalRatingDescriptor : public Descriptor {
+public:
+   class Rating : public LoopElement {
+   public:
+      char languageCode[3];
+      int getRating() const;
+      virtual int getLength() { return sizeof(parental_rating); }
+   protected:
+      virtual void Parse();
+   private:
+      const parental_rating *s;
+   };
+   StructureLoop<Rating> ratingLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class CaDescriptor : public Descriptor {
+public:
+   int getCaType() const;
+   int getCaPid() const;
+   CharArray privateData;
+protected:
+   virtual void Parse();
+private:
+   const descr_ca *s;
+};
+
+class StreamIdentifierDescriptor : public Descriptor {
+public:
+   int getComponentTag() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_stream_identifier *s;
+};
+
+class NetworkNameDescriptor : public Descriptor {
+public:
+   String name;
+protected:
+   virtual void Parse();
+};
+
+class CaIdentifierDescriptor : public Descriptor {
+public:
+   TypeLoop<SixteenBit> identifiers;
+protected:
+   virtual void Parse();
+};
+
+class CarouselIdentifierDescriptor : public Descriptor {
+public:
+   int getCarouselId() const;
+   int getFormatId() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_carousel_identifier *s;
+};
+
+class BouquetNameDescriptor : public NetworkNameDescriptor {
+};
+
+class ServiceListDescriptor : public Descriptor {
+public:
+   class Service : public LoopElement {
+   public:
+      int getServiceId() const;
+      int getServiceType() const;
+   virtual int getLength() { return sizeof(descr_service_list_loop); }
+   protected:
+      virtual void Parse();
+   private:
+      const descr_service_list_loop *s;
+   };
+   StructureLoop<Service> serviceLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class SatelliteDeliverySystemDescriptor : public Descriptor {
+public:
+   int getFrequency() const;
+   int getOrbitalPosition() const;
+   int getWestEastFlag() const;
+   int getPolarization() const;
+   int getModulation() const;
+   int getSymbolRate() const;
+   int getFecInner() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_satellite_delivery_system *s;
+};
+
+class CableDeliverySystemDescriptor : public Descriptor {
+public:
+   int getFrequency() const;
+   int getFecOuter() const;
+   int getModulation() const;
+   int getSymbolRate() const;
+   int getFecInner() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_cable_delivery_system *s;
+};
+
+class TerrestrialDeliverySystemDescriptor : public Descriptor {
+public:
+   int getFrequency() const;
+   int getBandwidth() const;
+   int getConstellation() const;
+   int getHierarchy() const;
+   int getCodeRateHP() const;
+   int getCodeRateLP() const;
+   int getGuardInterval() const;
+   int getTransmissionMode() const;
+   bool getOtherFrequency() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_terrestrial_delivery *s;
+};
+
+class ServiceDescriptor : public Descriptor {
+public:
+   int getServiceType() const;
+   String serviceName;
+   String providerName;
+protected:
+   virtual void Parse();
+private:
+   const descr_service *s;
+};
+
+class NVODReferenceDescriptor : public Descriptor {
+public:
+   class Service : public LoopElement {
+   public:
+      int getTransportStream() const;
+      int getOriginalNetworkId() const;
+      int getServiceId() const;
+      virtual int getLength() { return sizeof(item_nvod_reference); }
+   protected:
+      virtual void Parse();
+   private:
+      const item_nvod_reference *s;
+   };
+   StructureLoop<Service> serviceLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class TimeShiftedServiceDescriptor : public Descriptor {
+public:
+   int getReferenceServiceId() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_time_shifted_service *s;
+};
+
+class ComponentDescriptor : public Descriptor {
+public:
+   int getStreamContent() const;
+   int getComponentType() const;
+   int getComponentTag() const;
+   char languageCode[3];
+   String description;
+protected:
+   virtual void Parse();
+private:
+   const descr_component *s;
+};
+
+class SubtitlingDescriptor : public Descriptor {
+public:
+   class Subtitling : public Descriptor {
+   public:
+      int getSubtitlingType() const;
+      int getCompositionPageId() const;
+      int getAncillaryPageId() const;
+      virtual int getLength() { return sizeof(item_nvod_reference); }
+   protected:
+      virtual void Parse();
+   private:
+      const item_subtitling *s;
+   };
+   StructureLoop<Subtitling> subtitlingLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class ServiceMoveDescriptor : public Descriptor {
+public:
+   int getNewOriginalNetworkId() const;
+   int getNewTransportStreamId() const;
+   int getNewServiceId() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_service_move *s;
+};
+
+class FrequencyListDescriptor : public Descriptor {
+public:
+   int getCodingType() const;
+   TypeLoop<ThirtyTwoBit> frequencies;
+protected:
+   virtual void Parse();
+private:
+   const descr_frequency_list *s;
+};
+
+class ServiceIdentifierDescriptor : public Descriptor {
+public:
+   String textualServiceIdentifier;
+protected:
+   virtual void Parse();
+};
+
+//abstract base class
+class MultilingualNameDescriptor : public Descriptor {
+public:
+   class Name : public LoopElement {
+   public:
+      char languageCode[3];
+      String name;
+      virtual int getLength() { return sizeof(entry_multilingual_name)+name.getLength(); }
+   protected:
+      virtual void Parse();
+   };
+   StructureLoop<Name> nameLoop;
+protected:
+   virtual void Parse();
+};
+
+class MultilingualNetworkNameDescriptor : public MultilingualNameDescriptor {
+   //inherits nameLoop from MultilingualNameDescriptor
+};
+
+class MultilingualBouquetNameDescriptor : public MultilingualNameDescriptor {
+   //inherits nameLoop from MultilingualNameDescriptor
+};
+
+class MultilingualComponentDescriptor : public MultilingualNameDescriptor {
+public:
+   int getComponentTag() const;
+   //inherits nameLoop from MultilingualNameDescriptor
+protected:
+   virtual void Parse();
+private:
+   const descr_multilingual_component *s;
+};
+
+class MultilingualServiceNameDescriptor : public Descriptor {
+public:
+   class Name : public MultilingualNameDescriptor::Name {
+   public:
+      virtual int getLength() { return sizeof(entry_multilingual_name)+providerName.getLength()+sizeof(entry_multilingual_service_name_mid)+name.getLength(); }
+      String providerName;
+      //inherits name, meaning: service name;
+   protected:
+      virtual void Parse();
+   };
+   StructureLoop<Name> nameLoop;
+protected:
+   virtual void Parse();
+};
+
+
+
+
+
+//a descriptor currently unimplemented in this library
+class UnimplementedDescriptor : public Descriptor {
+protected:
+   virtual void Parse() {}
+};
+
+class ApplicationSignallingDescriptor : public Descriptor {
+public:
+   class ApplicationEntryDescriptor : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(application_signalling_entry); }
+      int getApplicationType() const;
+      int getAITVersionNumber() const;
+   protected:
+      virtual void Parse();
+   private:
+      const application_signalling_entry *s;
+   };
+   StructureLoop<ApplicationEntryDescriptor> entryLoop;
+protected:
+   virtual void Parse();
+};
+
+class MHP_ApplicationDescriptor : public Descriptor {
+public:
+   class Profile : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(application_profile_entry); }
+      int getApplicationProfile() const;
+      int getVersionMajor() const;
+      int getVersionMinor() const;
+      int getVersionMicro() const;
+   private:
+      const application_profile_entry *s;
+   protected:
+      virtual void Parse();
+   };
+   StructureLoop<Profile> profileLoop;
+   bool isServiceBound() const;
+   int getVisibility() const;
+   int getApplicationPriority() const;
+   TypeLoop<EightBit> transportProtocolLabels;
+private:
+   const descr_application_end *s;
+protected:
+   virtual void Parse();
+};
+
+
+class MHP_ApplicationNameDescriptor : public Descriptor {
+public:
+   class NameEntry : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(descr_application_name_entry)+name.getLength(); }
+      char languageCode[3];
+      String name;
+   protected:
+      virtual void Parse();
+   };
+   StructureLoop<NameEntry> nameLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class MHP_TransportProtocolDescriptor : public Descriptor {
+public:
+   enum Protocol { ObjectCarousel = 0x01, IPviaDVB = 0x02, HTTPoverInteractionChannel = 0x03 };
+   int getProtocolId() const;
+   int getProtocolLabel() const;
+   bool isRemote() const;
+   int getComponentTag() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_transport_protocol *s;
+   bool remote;
+   int componentTag;
+};
+
+class MHP_DVBJApplicationDescriptor : public Descriptor {
+public:
+   class ApplicationEntry : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(descr_dvbj_application_entry)+parameter.getLength(); }
+      String parameter;
+   protected:
+      virtual void Parse();
+   };
+   StructureLoop<ApplicationEntry> applicationLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class MHP_DVBJApplicationLocationDescriptor : public Descriptor {
+public:
+   String baseDirectory;
+   String classPath;
+   String initialClass;
+protected:
+   virtual void Parse();
+};
+
+class MHP_ApplicationIconsDescriptor : public Descriptor {
+public:
+   String iconLocator;
+   int getIconFlags() const;
+protected:
+   virtual void Parse();
+private:
+   const descr_application_icons_descriptor_end *s;
+};
+
+
+
+} //end of namespace
+
+#endif //LIBSI_TABLE_H
+

libsi/gendescr.pl

@@ -0,0 +1,82 @@
+#!/usr/bin/perl
+
+print "Name (ohne ...Descriptor):";
+$name=<STDIN>;
+$name =~ s/\n$//;
+$inner = ($name =~ s/ä$//);
+$name .= "Descriptor" unless ($inner);
+
+print "Struct:";
+$struct=<STDIN>;
+$struct =~ s/\n$//;
+
+
+mm:
+$index=0;
+$which=1;
+print "Variablen:";
+while ( <STDIN> ) {
+   if (/ä/) {
+      goto vv;
+   } elsif (/ü/) {
+      $which=1;
+      next;
+   }
+   $eingabe=$_;
+   $eingabe =~ s/(.{75,120} )/\1\n/g;
+   $eingabe =~ s/\n$//;
+   if ($which) {
+      $members[$index]=$eingabe;
+   } else {
+      $members_comments[$index]=$eingabe;
+      $index++;
+      print "Jep!\n";
+   }
+   $which= (! $which);
+}
+
+vv:
+$filename_h="tempdescr.h";
+$filename_c="tempdescr.c";
+schreib();
+
+sub schreib {
+   print "Danke.\n";
+   open(OUTPUT_H, ">>".$filename_h) or die "Could not open file!!";
+   open(OUTPUT_C, ">>".$filename_c) or die "Could not open file!!";
+   
+   if ($inner) {
+      $offset="   ";
+   } else {
+      $offset="";
+   }
+   print(OUTPUT_H $offset."class ".$name);
+   if ($inner) {
+      print(OUTPUT_H " : public LoopElement {\n".$offset."public:");
+   } else {
+      print(OUTPUT_H " : public Descriptor {\n".$offset."public:");
+   }
+   #for ($i=0; $i<=$#vars;$i++) {
+   #   print (OUTPUT "/*\n".$vars_comments[$i]." */\n".$vars[$i].";\n\n\n");
+   #}
+   for ($i=0; $i<=$#members;$i++) {
+      print (OUTPUT_H "\n".$offset."   int get".$members[$i]."() const;");
+   }
+   print(OUTPUT_H "\n".$offset."virtual int getLength() { return sizeof(".$struct."); }") if ($inner);
+   
+   print(OUTPUT_H "\n".$offset."protected:\n".$offset."   virtual void Parse();");
+   print(OUTPUT_H "\n".$offset."private:\n".$offset."   const ".$struct." *s;") if ($struct ne "");
+   print(OUTPUT_H "\n".$offset."};\n\n");
+   for ($i=0; $i<=$#members_comments;$i++) {
+      print (OUTPUT_C "int ".$name."::get".$members[$i]."() const {\n");
+      if ($members_comments[$i] =~ /^(.+)_hi$/) {
+         $varbase=$1;
+         print (OUTPUT_C "   return HILO(s->".$varbase.");\n}\n\n");
+      } else {
+         print (OUTPUT_C "   return s->".$members_comments[$i].";\n}\n\n");
+      }
+   }
+   print (OUTPUT_C "void ".$name."::Parse() {\n}\n\n");
+   print (OUTPUT_C "\n\n\n");
+   exit;
+}

libsi/section.c

@@ -0,0 +1,346 @@
+/***************************************************************************
+ *       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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "section.h"
+#include <stdio.h>
+
+namespace SI {
+
+/*********************** PAT ***********************/
+
+void PAT::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const pat>(s, offset);
+   associationLoop.setData(data+offset, getLength()-offset-4);
+}
+
+int PAT::getTransportStreamId() const {
+   return HILO(s->transport_stream_id);
+}
+
+int PAT::Association::getServiceId() const {
+   return HILO(s->program_number);
+}
+
+int PAT::Association::getPid() const {
+   return HILO(s->network_pid);
+}
+
+void PAT::Association::Parse() {
+   s=data.getData<pat_prog>();
+}
+
+/*********************** CAT ***********************/
+
+void CAT::Parse() {
+   loop.setData(data+sizeof(cat), getLength()-sizeof(cat)-4);
+}
+
+/*********************** PMT ***********************/
+
+void PMT::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const pmt>(s, offset);
+   commonDescriptors.setDataAndOffset(data+offset, HILO(s->program_info_length), offset);
+   streamLoop.setData(data+offset, getLength()-offset-4);
+}
+
+int PMT::getServiceId() const {
+   return HILO(s->program_number);
+}
+
+int PMT::getPCRPid() const {
+   return HILO(s->PCR_PID);
+}
+
+int PMT::Stream::getPid() const {
+   return HILO(s->elementary_PID);
+}
+
+int PMT::Stream::getStreamType() const {
+   return s->stream_type;
+}
+
+void PMT::Stream::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const pmt_info>(s, offset);
+   streamDescriptors.setData(data+offset, HILO(s->ES_info_length));
+}
+
+
+
+/*********************** NIT ***********************/
+
+int NIT::getNetworkId() const {
+   return HILO(s->network_id);
+}
+
+void NIT::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const nit>(s, offset);
+   commonDescriptors.setDataAndOffset(data+offset, HILO(s->network_descriptor_length), offset);
+   const nit_mid *mid;
+   data.setPointerAndOffset<const nit_mid>(mid, offset);
+   transportStreamLoop.setData(data+offset, HILO(mid->transport_stream_loop_length));
+}
+
+int NIT::TransportStream::getTransportStreamId() const {
+   return HILO(s->transport_stream_id);
+}
+
+int NIT::TransportStream::getOriginalNetworkId() const {
+   return HILO(s->original_network_id);
+}
+
+void NIT::TransportStream::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const ni_ts>(s, offset);
+   transportStreamDescriptors.setData(data+offset, HILO(s->transport_descriptors_length));
+}
+
+
+
+/*********************** SDT ***********************/
+
+
+void SDT::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const sdt>(s, offset);
+   serviceLoop.setData(data+offset, getLength()-offset-4); //4 is for CRC
+}
+
+int SDT::getTransportStreamId() const {
+   return HILO(s->transport_stream_id);
+}
+
+int SDT::getOriginalNetworkId() const {
+   return HILO(s->original_network_id);
+}
+
+int SDT::Service::getServiceId() const {
+   return HILO(s->service_id);
+}
+
+int SDT::Service::getEITscheduleFlag() const {
+   return s->eit_schedule_flag;
+}
+
+int SDT::Service::getEITpresentFollowingFlag() const {
+   return s->eit_present_following_flag;
+}
+
+RunningStatus SDT::Service::getRunningStatus() const {
+   return (RunningStatus)s->running_status;
+}
+
+int SDT::Service::getFreeCaMode() const {
+   return s->free_ca_mode;
+}
+
+void SDT::Service::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const sdt_descr>(s, offset);
+   serviceDescriptors.setData(data+offset, HILO(s->descriptors_loop_length));
+}
+
+
+
+/*********************** EIT ***********************/
+
+int EIT::getServiceId() const {
+   return HILO(s->service_id);
+}
+
+int EIT::getTransportStreamId() const {
+   return HILO(s->transport_stream_id);
+}
+
+int EIT::getOriginalNetworkId() const {
+   return HILO(s->original_network_id);
+}
+
+bool EIT::isPresentFollowing() const {
+   return getTableId() == TableIdEIT_presentFollowing || getTableId() == TableIdEIT_presentFollowing_other; 
+}
+
+bool EIT::isActualTS() const {
+   return
+       (getTableId() ==TableIdEIT_presentFollowing)
+    || (TableIdEIT_schedule_first <= getTableId() && getTableId() <= TableIdEIT_schedule_last);
+}
+
+void EIT::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const eit>(s, offset);
+   //printf("%d %d %d %d %d\n", getServiceId(), getTransportStreamId(), getOriginalNetworkId(), isPresentFollowing(), isActualTS());
+   eventLoop.setData(data+offset, getLength()-offset-4); //4 is for CRC
+}
+
+
+time_t EIT::Event::getStartTime() const {
+   return DVBTime::getTime(s->mjd_hi, s->mjd_lo, s->start_time_h, s->start_time_m, s->start_time_s);
+}
+
+time_t EIT::Event::getDuration() const {
+   return DVBTime::getDuration(s->duration_h, s->duration_m, s->duration_s);
+}
+
+int EIT::Event::getEventId() const {
+   return HILO(s->event_id);
+}
+
+int EIT::Event::getMJD() const {
+   return HILO(s->mjd);
+}
+
+int EIT::Event::getStartTimeHour() const {
+   return DVBTime::bcdToDec(s->start_time_h);
+}
+
+int EIT::Event::getStartTimeMinute() const {
+   return DVBTime::bcdToDec(s->start_time_m);
+}
+
+int EIT::Event::getStartTimeSecond() const {
+   return DVBTime::bcdToDec(s->start_time_s);
+}
+
+int EIT::Event::getDurationHour() const {
+   return DVBTime::bcdToDec(s->duration_h);
+}
+
+int EIT::Event::getDurationMinute() const {
+   return DVBTime::bcdToDec(s->duration_m);
+}
+
+int EIT::Event::getDurationSecond() const {
+   return DVBTime::bcdToDec(s->duration_s);
+}
+
+RunningStatus EIT::Event::getRunningStatus() const {
+   return (RunningStatus)s->running_status;
+}
+
+int EIT::Event::getFreeCaMode() const {
+   return s->free_ca_mode;
+}
+
+void EIT::Event::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const eit_event>(s, offset);
+   //printf("%d %d %d\n", getStartTime(), getDuration(), getRunningStatus());
+   eventDescriptors.setData(data+offset, HILO(s->descriptors_loop_length));
+}
+
+
+/*********************** TDT ***********************/
+
+time_t TDT::getTime() const {
+   return DVBTime::getTime(s->utc_mjd_hi, s->utc_mjd_lo, s->utc_time_h, s->utc_time_m, s->utc_time_s);
+}
+
+void TDT::Parse() {
+   s=data.getData<const tdt>();
+}
+
+
+/*********************** TOT ***********************/
+
+time_t TOT::getTime() const {
+   return DVBTime::getTime(s->utc_mjd_hi, s->utc_mjd_lo, s->utc_time_h, s->utc_time_m, s->utc_time_s);
+}
+
+void TOT::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const tot>(s, offset);
+   descriptorLoop.setData(data+offset, getLength()-offset-4);
+}
+
+
+
+
+/*********************** RST ***********************/
+
+void RST::Parse() {
+   unsigned int offset=0;
+   const rst *s;
+   data.setPointerAndOffset<const rst>(s, offset);
+   infoLoop.setData(data+offset, getLength()-offset);
+}
+
+int RST::RunningInfo::getTransportStreamId() const {
+   return HILO(s->transport_stream_id);
+}
+
+int RST::RunningInfo::getOriginalNetworkId() const {
+   return HILO(s->original_network_id);
+}
+
+int RST::RunningInfo::getServiceId() const {
+   return HILO(s->service_id);
+}
+
+int RST::RunningInfo::getEventId() const {
+   return HILO(s->event_id);
+}
+
+RunningStatus RST::RunningInfo::getRunningStatus() const {
+   return (RunningStatus)s->running_status;
+}
+
+void RST::RunningInfo::Parse() {
+   s=data.getData<const rst_info>();
+}
+
+
+
+/*********************** AIT ***********************/
+
+
+int AIT::getApplicationType() const {
+   return HILO(first->application_type);
+}
+
+int AIT::getAITVersion() const {
+   return first->version_number;
+}
+
+void AIT::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const ait>(first, offset);
+   commonDescriptors.setDataAndOffset(data+offset, HILO(first->common_descriptors_length), offset);
+   const ait_mid *mid;
+   data.setPointerAndOffset<const ait_mid>(mid, offset);
+   applicationLoop.setData(data+offset, HILO(mid->application_loop_length));
+}
+
+
+long AIT::Application::getOrganisationId() const {
+   return data.FourBytes(0);
+}
+
+int AIT::Application::getApplicationId() const {
+   return HILO(s->application_id);
+}
+
+int AIT::Application::getControlCode() const {
+   return s->application_control_code;
+}
+
+void AIT::Application::Parse() {
+   unsigned int offset=0;
+   data.setPointerAndOffset<const ait_app>(s, offset);
+   applicationDescriptors.setData(data+offset, HILO(s->application_descriptors_length));
+}
+
+
+
+} //end of namespace
+

libsi/section.h

@@ -0,0 +1,259 @@
+/***************************************************************************
+ *       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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef LIBSI_SECTION_H
+#define LIBSI_SECTION_H
+
+#include <time.h>
+
+#include "si.h"
+#include "headers.h"
+
+namespace SI {
+
+class PAT : public NumberedSection {
+public:
+   PAT(const unsigned char *data, bool doCopy=true) : NumberedSection(data, doCopy) {}
+   PAT() {}
+   class Association : public LoopElement {
+   public:
+      int getServiceId() const;
+      int getPid() const;
+      bool isNITPid() const { return getServiceId()==0; }
+      virtual int getLength() { return sizeof(pat_prog); }
+   protected:
+      virtual void Parse();
+   private:
+      const pat_prog *s;
+   };
+   int getTransportStreamId() const;
+   StructureLoop<Association> associationLoop;
+protected:
+   virtual void Parse();
+private:
+   const pat *s;
+};
+
+class CAT : public NumberedSection {
+public:
+   CAT(const unsigned char *data, bool doCopy=true) : NumberedSection(data, doCopy) {}
+   CAT() {}
+   DescriptorLoop loop;
+protected:
+   virtual void Parse();
+};
+
+
+class PMT : public NumberedSection {
+public:
+   PMT(const unsigned char *data, bool doCopy=true) : NumberedSection(data, doCopy) {}
+   PMT() {}
+   class Stream : public LoopElement {
+   public:
+      int getPid() const;
+      int getStreamType() const;
+      DescriptorLoop streamDescriptors;
+      virtual int getLength() { return sizeof(pmt_info)+streamDescriptors.getLength(); }
+   protected:
+      virtual void Parse();
+   private:
+      const pmt_info *s;
+   };
+   DescriptorLoop commonDescriptors;
+   StructureLoop<Stream> streamLoop;
+   int getServiceId() const;
+   int getPCRPid() const;
+protected:
+   virtual void Parse();
+private:
+   const pmt *s;
+};
+
+class NIT : public NumberedSection {
+public:
+   NIT(const unsigned char *data, bool doCopy=true) : NumberedSection(data, doCopy) {}
+   NIT() {}
+   class TransportStream : public LoopElement {
+   public:
+      int getTransportStreamId() const;
+      int getOriginalNetworkId() const;
+      virtual int getLength() { return sizeof(ni_ts)+transportStreamDescriptors.getLength(); }
+      DescriptorLoop transportStreamDescriptors;
+   protected:
+      virtual void Parse();
+   private:
+      const ni_ts *s;
+   };
+   DescriptorLoop commonDescriptors;
+   StructureLoop<TransportStream> transportStreamLoop;
+   int getNetworkId() const;
+protected:
+   virtual void Parse();
+private:
+   const nit *s;
+};
+
+//BAT has the same structure as NIT but different allowed descriptors
+class BAT : public NIT {
+public:
+   BAT(const unsigned char *data, bool doCopy=true) : NIT(data, doCopy) {}
+   BAT() {}
+   int getBouquetId() const { return getNetworkId(); }
+};
+
+
+class SDT : public NumberedSection {
+public:
+   SDT(const unsigned char *data, bool doCopy=true) : NumberedSection(data, doCopy) {}
+   SDT() {}
+   class Service : public LoopElement {
+   public:
+      int getServiceId() const;
+      int getEITscheduleFlag() const;
+      int getEITpresentFollowingFlag() const;
+      RunningStatus getRunningStatus() const;
+      int getFreeCaMode() const;
+      virtual int getLength() { return sizeof(sdt_descr)+serviceDescriptors.getLength(); }
+      DescriptorLoop serviceDescriptors;
+   protected:
+      virtual void Parse();
+   private:
+      const sdt_descr *s;
+   };
+   int getTransportStreamId() const;
+   int getOriginalNetworkId() const;
+   StructureLoop<Service> serviceLoop;
+protected:
+   virtual void Parse();
+private:
+   const sdt *s;
+};  
+
+
+class EIT : public NumberedSection {
+public:
+   EIT(const unsigned char *data, bool doCopy=true) : NumberedSection(data, doCopy) {}
+   EIT() {}
+   class Event : public LoopElement {
+   public:
+      int getEventId() const;
+      time_t getStartTime() const; //UTC
+      time_t getDuration() const;
+      
+      int getMJD() const;
+      int getStartTimeHour() const; //UTC
+      int getStartTimeMinute() const; //UTC
+      int getStartTimeSecond() const; //UTC
+      int getDurationHour() const;
+      int getDurationMinute() const;
+      int getDurationSecond() const;
+      RunningStatus getRunningStatus() const;
+      int getFreeCaMode() const;
+      
+      DescriptorLoop eventDescriptors;
+      virtual int getLength() { return sizeof(eit_event)+eventDescriptors.getLength(); }
+   protected:
+      virtual void Parse();
+   private:
+      const eit_event *s;
+   };
+   int getServiceId() const;
+   int getTransportStreamId() const;
+   int getOriginalNetworkId() const;
+   StructureLoop<Event> eventLoop;
+      
+   //true if table conveys present/following information, false if it conveys schedule information
+   bool isPresentFollowing() const;
+   //true if table describes TS on which it is broadcast, false if it describes other TS
+   bool isActualTS() const;
+protected:
+   virtual void Parse();
+private:
+   const eit *s;
+};
+
+
+class TDT : public Section {
+public:
+   TDT(const unsigned char *data, bool doCopy=true) : Section(data, doCopy) {}
+   TDT() {}
+   time_t getTime() const; //UTC
+protected:
+   virtual void Parse();
+private:
+   const tdt *s;
+};
+
+
+class TOT : public CRCSection {
+public:
+   TOT(const unsigned char *data, bool doCopy=true) : CRCSection(data, doCopy) {}
+   TOT() {}
+   time_t getTime() const;
+   DescriptorLoop descriptorLoop;
+protected:
+   virtual void Parse();
+private:
+   const tot *s;
+};
+
+
+class RST : public Section {
+public:
+   RST(const unsigned char *data, bool doCopy=true) : Section(data, doCopy) {}
+   RST() {}
+   class RunningInfo : public LoopElement {
+   public:
+      int getTransportStreamId() const;
+      int getOriginalNetworkId() const;
+      int getServiceId() const;
+      int getEventId() const;
+      RunningStatus getRunningStatus() const;
+      virtual int getLength() { return sizeof(rst_info); }
+   protected:
+      virtual void Parse();
+   private:
+      const rst_info *s;
+   };
+   StructureLoop<RunningInfo> infoLoop;
+protected:
+   virtual void Parse();
+};
+
+
+class AIT : public NumberedSection {
+public:
+   AIT(const unsigned char *data, bool doCopy=true) : NumberedSection(data, doCopy) {}
+   AIT() {}
+   class Application : public LoopElement {
+   public:
+      virtual int getLength() { return sizeof(ait_app)+applicationDescriptors.getLength(); }
+      long getOrganisationId() const;
+      int getApplicationId() const;
+      int getControlCode() const;
+      MHP_DescriptorLoop applicationDescriptors;
+   protected:
+      virtual void Parse();
+      const ait_app *s;
+   };
+   MHP_DescriptorLoop commonDescriptors;
+   StructureLoop<Application> applicationLoop;
+   int getApplicationType() const;
+   int getAITVersion() const;
+protected:
+   const ait *first;
+   virtual void Parse();
+};
+
+
+
+} //end of namespace
+
+#endif //LIBSI_TABLE_H

libsi/si.c

@@ -0,0 +1,431 @@
+/***************************************************************************
+ *       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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#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++;
+   }
+   *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
+
+

libsi/si.h

@@ -0,0 +1,405 @@
+/***************************************************************************
+ *       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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#ifndef LIBSI_SI_H
+#define LIBSI_SI_H
+
+#include <stdint.h>
+
+#include "util.h"
+#include "headers.h"
+
+namespace SI {
+
+enum TableId { TableIdPAT = 0x00, //program association section
+               TableIdCAT = 0x01, //conditional access section
+               TableIdPMT = 0x02, //program map section
+               TableIdTSDT = 0x03,//transport stream description section
+               TableIdNIT = 0x40, //network information, actual network section
+               TableIdNIT_other  = 0x41, //network information section, other network
+               TableIdSDT = 0x42, //service description section
+               TableIdSDT_other  = 0x46,
+               TableIdBAT = 0x46, //bouquet association section
+               TableIdEIT_presentFollowing = 0x4E, //event information section
+               TableIdEIT_presentFollowing_other = 0x4F,
+               //range from 0x50 to 0x5F
+               TableIdEIT_schedule_first = 0x50,
+               TableIdEIT_schedule_last = 0x5F,
+               //range from 0x60 to 0x6F
+               TableIdEIT_schedule_Other_first = 0x60,
+               TableIdEIT_schedule_Other_fast = 0x6F,
+               TableIdTDT = 0x70, //time date section
+               TableIdRST = 0x71, //running status section
+               TableIdST  = 0x72, //stuffing section
+               TableIdTOT = 0x73, //time offset section
+               TableIdDIT = 0x7E, //discontinuity information section
+               TableIdSIT = 0x7F, //service information section
+               TableIdAIT = 0x74  //application information section
+             };
+               
+
+enum DescriptorTag {
+  // defined by ISO/IEC 13818-1
+               VideoStreamDescriptorTag = 0x02,
+               AudioStreamDescriptorTag = 0x03,
+               HierarchyDescriptorTag = 0x04,
+               RegistrationDescriptorTag = 0x05,
+               DataStreamAlignmentDescriptorTag = 0x06,
+               TargetBackgroundGridDescriptorTag = 0x07,
+               VideoWindowDescriptorTag = 0x08,
+               CaDescriptorTag = 0x09,
+               ISO639LanguageDescriptorTag = 0x0A,
+               SystemClockDescriptorTag = 0x0B,
+               MultiplexBufferUtilizationDescriptorTag = 0x0C,
+               CopyrightDescriptorTag = 0x0D,
+               MaximumBitrateDescriptorTag = 0x0E,
+               PrivateDataIndicatorDescriptorTag = 0x0F,
+               SmoothingBufferDescriptorTag = 0x10,
+               STDDescriptorTag = 0x11,
+               IBPDescriptorTag = 0x12,
+  // defined by ISO-13818-6 (DSM-CC) 
+               CarouselIdentifierDescriptorTag = 0x13,
+               // 0x14 - 0x3F  Reserved
+  // defined by ETSI (EN 300 468)
+               NetworkNameDescriptorTag = 0x40,
+               ServiceListDescriptorTag = 0x41,
+               StuffingDescriptorTag = 0x42,
+               SatelliteDeliverySystemDescriptorTag = 0x43,
+               CableDeliverySystemDescriptorTag = 0x44,
+               VBIDataDescriptorTag = 0x45,
+               VBITeletextDescriptorTag = 0x46,
+               BouquetNameDescriptorTag = 0x47,
+               ServiceDescriptorTag = 0x48,
+               CountryAvailabilityDescriptorTag = 0x49,
+               LinkageDescriptorTag = 0x4A,
+               NVODReferenceDescriptorTag = 0x4B,
+               TimeShiftedServiceDescriptorTag = 0x4C,
+               ShortEventDescriptorTag = 0x4D,
+               ExtendedEventDescriptorTag = 0x4E,
+               TimeShiftedEventDescriptorTag = 0x4F,
+               ComponentDescriptorTag = 0x50,
+               MocaicDescriptorTag = 0x51,
+               StreamIdentifierDescriptorTag = 0x52,
+               CaIdentifierDescriptorTag = 0x53,
+               ContentDescriptorTag = 0x54,
+               ParentalRatingDescriptorTag = 0x55,
+               TeletextDescriptorTag = 0x56,
+               TelephoneDescriptorTag = 0x57,
+               LocalTimeOffsetDescriptorTag = 0x58,
+               SubtitlingDescriptorTag = 0x59,
+               TerrestrialDeliverySystemDescriptorTag = 0x5A,
+               MultilingualNetworkNameDescriptorTag = 0x5B,
+               MultilingualBouquetNameDescriptorTag = 0x5C,
+               MultilingualServiceNameDescriptorTag = 0x5D,
+               MultilingualComponentDescriptorTag = 0x5E,
+               PrivateDataSpecifierDescriptorTag = 0x5F,
+               ServiceMoveDescriptorTag = 0x60,
+               ShortSmoothingBufferDescriptorTag = 0x61,
+               FrequencyListDescriptorTag = 0x62,
+               PartialTransportStreamDescriptorTag = 0x63,
+               DataBroadcastDescriptorTag = 0x64,
+               CaSystemDescriptorTag = 0x65,
+               DataBroadcastIdDescriptorTag = 0x66,
+               TransportStreamDescriptorTag = 0x67,
+               DSNGDescriptorTag = 0x68,
+               PDCDescriptorTag = 0x69,
+               AC3DescriptorTag = 0x6A,
+               AncillaryDataDescriptorTag = 0x6B,
+               CellListDescriptorTag = 0x6C,
+               CellFrequencyLinkDescriptorTag = 0x6D,
+               AnnouncementSupportDescriptorTag = 0x6E,
+               ApplicationSignallingDescriptorTag = 0x6F,
+               AdaptationFieldDataDescriptorTag = 0x70,
+               ServiceIdentifierDescriptorTag = 0x71,
+               ServiceAvailabilityDescriptorTag = 0x72,
+ // Defined by ETSI TS 102 812 (MHP)
+               // They once again start with 0x00 (see page 234, MHP specification)
+               MHP_ApplicationDescriptorTag = 0x00,
+               MHP_ApplicationNameDescriptorTag = 0x01,
+               MHP_TransportProtocolDescriptorTag = 0x02,
+               MHP_DVBJApplicationDescriptorTag = 0x03,
+               MHP_DVBJApplicationLocationDescriptorTag = 0x04,
+               // 0x05 - 0x0A is unimplemented this library
+               MHP_ExternalApplicationAuthorisationDescriptorTag = 0x05,
+               MHP_IPv4RoutingDescriptorTag = 0x06,
+               MHP_IPv6RoutingDescriptorTag = 0x07,
+               MHP_DVBHTMLApplicationDescriptorTag = 0x08,
+               MHP_DVBHTMLApplicationLocationDescriptorTag = 0x09,
+               MHP_DVBHTMLApplicationBoundaryDescriptorTag = 0x0A,
+               MHP_ApplicationIconsDescriptorTag = 0x0B,
+               MHP_PrefetchDescriptorTag = 0x0C,
+               MHP_DelegatedApplicationDescriptorTag = 0x0E,
+               MHP_ApplicationStorageDescriptorTag = 0x10,
+               
+               //a descriptor currently unimplemented in this library
+               //the actual value 0xFF is "forbidden" according to the spec.
+               UnimplementedDescriptorTag = 0xFF
+};
+
+enum DescriptorTagDomain { SI, MHP };
+
+enum RunningStatus { RunningStatusUndefined = 0,
+                     RunningStatusNotRunning = 1,
+                     RunningStatusStartsInAFewSeconds = 2,
+                     RunningStatusPausing = 3,
+                     RunningStatusRunning = 4
+                   };
+
+
+/* Some principles:
+   - Objects that return references to other objects contained in their data must make sure
+     that the returned objects have been parsed.
+     (the Loop subclasses take care of that.)
+     Note that this does not apply to Loops and Strings (their are never returned by reference, BTW).
+*/
+
+
+class Object : public Parsable {
+public:
+   Object();
+   Object(CharArray &d);
+   //can only be called once since data is immutable
+   void setData(const unsigned char*data, unsigned int size, bool doCopy=true);
+   virtual int getLength() = 0;
+protected:
+   CharArray data;
+   //is protected - not used for sections
+   template <class T> friend class StructureLoop;
+   void setData(CharArray &d);
+};
+
+class Section : public Object {
+public:
+   //convenience: sets data and parses if doParse
+   Section(const unsigned char *data, bool doCopy=true);
+   Section() {}
+   TableId getTableId() const;
+   virtual int getLength();
+   
+   static int getLength(const unsigned char *d);
+   static TableId getTableId(const unsigned char *d);
+};
+
+class CRCSection : public Section {
+public:
+   //convenience: sets data and parses if doParse
+   CRCSection(const unsigned char *data, bool doCopy=true) : Section(data, doCopy) {}
+   CRCSection() {}
+   bool isValid();
+   //convenience: isValid+CheckParse
+   bool CheckCRCAndParse();
+};
+
+/* A section which has the ExtendedSectionHeader
+   (section_syntax_indicator==1) */
+class NumberedSection : public CRCSection {
+public:
+   NumberedSection(const unsigned char *data, bool doCopy=true) : CRCSection(data, doCopy) {}
+   NumberedSection() {}
+   bool getCurrentNextIndicator() const;
+   int getVersionNumber() const;
+   int getSectionNumber() const;
+   int getLastSectionNumber() const;
+   bool moreThanOneSection()  const { return getLastSectionNumber()>1; }
+};
+
+
+
+
+class VariableLengthPart : public Object {
+public:
+   //never forget to call this
+   void setData(CharArray d, int l) { Object::setData(d); length=l; }
+   //convenience method
+   void setDataAndOffset(CharArray d, int l, unsigned int &offset) { Object::setData(d); length=l; offset+=l; }
+   virtual int getLength() { return length; }
+private:
+   int length;
+};
+
+
+
+class LoopElement : public Object {
+};
+
+
+class SubStructure : public LoopElement {
+};
+
+class Descriptor : public LoopElement {
+public:
+   virtual int getLength();
+   DescriptorTag getDescriptorTag() const;
+   
+   static int getLength(const unsigned char *d);
+   static DescriptorTag getDescriptorTag(const unsigned char *d);
+protected:
+   friend class DescriptorLoop;
+   //returns a subclass of descriptor according to the data given.
+   //The object is allocated with new and must be delete'd.
+   //setData() will have been called, CheckParse() not.
+   //Never returns null - maybe the UnimplementedDescriptor.
+   static Descriptor *getDescriptor(CharArray d, DescriptorTagDomain domain);
+};
+
+
+
+class Loop : public VariableLengthPart {
+public:
+   class Iterator {
+   public:
+      Iterator() { i=0; }
+      void reset() { i=0; }
+   private:
+      template <class T> friend class StructureLoop;
+      friend class DescriptorLoop;
+      int i;
+   };
+protected:
+   virtual void Parse() {}
+};
+
+//contains LoopElements of one type only
+template <class T> class StructureLoop : public Loop {
+public:
+   //currently you must use a while-loop testing for hasNext()
+   //i must be 0 to get the first descriptor (with the first call)
+   T getNext(Iterator &it)
+      {
+         CharArray d=data;
+         d.addOffset(it.i);
+         T ret;
+         ret.setData(d);
+         ret.CheckParse();
+         it.i+=ret.getLength();
+         return ret;
+      }
+   T* getNextAsPointer(Iterator &it)
+      {
+         if (getLength() <= it.i)
+            return 0;
+         CharArray d=data;
+         d.addOffset(it.i);
+         T *ret=new T();
+         ret->setData(d);
+         ret->CheckParse();
+         it.i+=ret->getLength();
+         return ret;
+      }
+   bool hasNext(Iterator &it) { return getLength() > it.i; }
+};
+
+//contains descriptors of different types
+class DescriptorLoop : public Loop {
+public:
+   DescriptorLoop() { domain=SI; }
+   //i must be 0 to get the first descriptor (with the first call)
+   //All returned descriptors must be delete'd.
+   //returns null if no more descriptors available
+   Descriptor *getNext(Iterator &it);
+   //return the next descriptor with given tag, or 0 if not available.
+   //if the descriptor found is not implemented,
+   // an UnimplementedDescriptor will be returned if returnUnimplemetedDescriptor==true,
+   // 0 will be returned if returnUnimplemetedDescriptor==false
+   Descriptor *getNext(Iterator &it, DescriptorTag tag, bool returnUnimplemetedDescriptor=false);
+   //return the next descriptor with one of the given tags, or 0 if not available.
+   Descriptor *getNext(Iterator &it, DescriptorTag *tags, int arrayLength, bool returnUnimplemetedDescriptor=false);
+protected:
+   Descriptor *createDescriptor(int &i);
+   DescriptorTagDomain domain;
+};
+
+typedef uint8_t   EightBit;
+typedef uint16_t  SixteenBit;
+typedef uint32_t  ThirtyTwoBit;
+typedef uint64_t  SixtyFourBit;
+
+template <typename T> class TypeLoop : public Loop {
+public:
+   int getCount() const { return getLength()/sizeof(T); }
+   T operator[](const unsigned int index) const
+      {
+         switch (sizeof(T)) {
+         case 1:
+            return data[index];
+         case 2:
+            return data.TwoBytes(index);
+         case 4:
+            return data.FourBytes(index);
+         case 8:
+            return (data.FourBytes(index) << 32) | data.FourBytes(index+4);
+         }
+      }
+   T getNext(Iterator &it) const 
+      {
+         T ret=operator[](it.i);
+         it.i+=sizeof(T);
+         return ret; 
+      }
+   bool hasNext() const { return getLength() > it.i; }
+};
+
+class MHP_DescriptorLoop : public DescriptorLoop {
+public:
+   MHP_DescriptorLoop() { domain=MHP; }
+};
+
+
+//The content of the ExtendedEventDescriptor may be split over several
+//descriptors if the text is longer than 256 bytes.
+//The following classes provide base functionality to handle this case.
+class GroupDescriptor : public Descriptor {
+public:
+   virtual int getDescriptorNumber() = 0;
+   virtual int getLastDescriptorNumber() = 0;
+};
+
+class DescriptorGroup {
+public:
+   DescriptorGroup(bool deleteOnDesctruction=true);
+   ~DescriptorGroup();
+   void Add(GroupDescriptor *d);
+   void Delete();   
+   int getLength() { return length; }
+   GroupDescriptor **getDescriptors() { return array; }
+   bool isComplete(); //if all descriptors have been added
+protected:
+   int length;
+   GroupDescriptor **array;
+   bool deleteOnDesctruction;
+};
+
+
+
+class String : public VariableLengthPart {
+public:
+   //A note to the length: getLength() returns the length of the raw data.
+   //The text may be shorter. Its length can be obtained with one of the 
+   //above functions and strlen.
+   
+   //returns text. Data is allocated with new and must be delete'd by the user.
+   char *getText();
+   //copies text into given buffer. 
+   //a buffer of size getLength()+1 is guaranteed to be sufficiently large.
+   //In most descriptors the string length is an 8-bit field,
+   //so the maximum there is 256.
+   //returns the given buffer for convenience.
+   char * getText(char *buffer);
+protected:
+   virtual void Parse() {}
+   void decodeText(char *buffer);
+};
+
+
+} //end of namespace
+
+#endif //LIBSI_SI_H
+

libsi/util.c

@@ -0,0 +1,290 @@
+/***************************************************************************
+ *       Copyright (c) 2003 by Marcel Wiesweg, Rolf Hakenes                *
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include <string.h>
+#include "util.h"
+
+namespace SI {
+
+
+/*---------------------------- CharArray ----------------------------*/
+
+CharArray::CharArray() : data_(0), off(0) {
+}
+
+CharArray::~CharArray() {
+   if (!data_)
+      return;
+   if (--data_->count_ == 0)
+      delete data_;
+}
+
+CharArray::CharArray(const CharArray &f) : data_(f.data_), off(f.off) {
+   if (data_)
+      ++ data_->count_;
+}
+
+CharArray& CharArray::operator=(const CharArray &f) {
+    // DO NOT CHANGE THE ORDER OF THESE STATEMENTS!
+    // (This order properly handles self-assignment)
+    if (f.data_) {
+      ++ f.data_->count_;
+    }
+    if (data_) {
+      if (--data_->count_ == 0) 
+         delete data_;
+    }
+    data_ = f.data_;
+    off = f.off;
+    return *this;
+}
+
+void CharArray::assign(const unsigned char*data, unsigned int size, bool doCopy) {
+    //immutable
+    if (!data_)
+      data_= doCopy ? (Data*)new DataOwnData() : (Data*)new DataForeignData();
+    // This method might need to change things in *data_
+    // Thus it first checks if this is the only pointer to *data_
+    if (data_->count_ > 1) {
+      Data* d = doCopy ? (Data*)new DataOwnData() : (Data*)new DataForeignData();
+      -- data_->count_;
+      data_ = d;
+    }
+    data_->assign(data, size);
+}
+
+bool CharArray::operator==(const char *string) const {
+   //here we can use strcmp, string is null-terminated.
+   if (!data_) 
+      return false;
+   return data_->size ? (!strcmp((const char*)data_->data, string)) : string[0]==0;
+}
+
+bool CharArray::operator==(const CharArray &other) const {
+   if (!data_ || !other.data_) 
+      return !(data_ || other.data_); //true if both empty
+      
+   if (data_->size != other.data_->size)
+      return false;
+      
+   //do _not_ use strcmp! Data is not necessarily null-terminated.
+   for (unsigned int i=0;i<data_->size;i++)
+      if (data_->data[i] != other.data_->data[i])
+         return false;
+   return true;
+}
+
+CharArray CharArray::operator+(const unsigned int offset) const {
+   CharArray f(*this);
+   f.off+=offset;
+   return f;
+}
+
+CharArray::Data::Data() : count_(1) {
+   size=0;
+   data=0;
+   /*
+   lockingPid = 0;
+   locked = 0;
+   pthread_mutex_init(&mutex, NULL);
+   */
+}
+
+CharArray::Data::~Data() {
+   /*   
+   if (locked)
+      pthread_mutex_unlock(&mutex);
+   pthread_mutex_destroy(&mutex);
+   */
+}
+
+/*CharArray::Data::Data(const Data& d) : count_(1) {
+   size=0;
+   data=0;
+   
+   lockingPid = 0;
+   locked = 0;
+   pthread_mutex_init(&mutex, NULL);
+}*/
+
+CharArray::DataOwnData::~DataOwnData() {
+   Delete();
+}
+
+void CharArray::DataOwnData::assign(const unsigned char*d, unsigned int s) {
+   Delete();
+   size=s;
+   unsigned char *newdata=new unsigned char[size];
+   memcpy(newdata, d, size);
+   data=newdata;
+}
+
+void CharArray::DataOwnData::Delete() {
+   delete[] data;
+}
+
+CharArray::DataForeignData::~DataForeignData() {
+   Delete();
+}
+
+void CharArray::DataForeignData::assign(const unsigned char*d, unsigned int s) {
+   size=s;
+   data=d;
+}
+
+void CharArray::DataForeignData::Delete() {
+   //do not delete!
+}
+
+
+/*
+void CharArray::Data::assign(unsigned int s) {
+   if (data)
+      delete[] data;
+   size=s;
+   if (size) { //new assignment may be zero length
+      data=new unsigned char[size];
+      memset(data, 0, size);
+   }
+}
+
+void CharArray::Data::Lock(void)
+{
+  if ( !pthread_equal(pthread_self(), lockingPid) || !locked) {
+     pthread_mutex_lock(&mutex);
+     lockingPid = pthread_self();
+     }
+  locked++;
+}
+
+void CharArray::Data::Unlock(void)
+{
+   if (!--locked) {
+     lockingPid = 0;
+     pthread_mutex_unlock(&mutex);
+   }
+}
+*/
+
+Parsable::Parsable() {
+   parsed=false;
+}
+
+void Parsable::CheckParse() {
+   if (!parsed) {
+      parsed=true;
+      Parse();
+   }
+}
+
+
+//taken and adapted from libdtv, (c) Rolf Hakenes and VDR, (c) Klaus Schmidinger    
+time_t DVBTime::getTime(unsigned char date_hi, unsigned char date_lo, unsigned char time_hour, unsigned char time_minute, unsigned char time_second) {
+   unsigned short mjd = date_hi << 8 | date_lo;
+   struct tm t;
+   
+   t.tm_sec = bcdToDec(time_second);
+   t.tm_min = bcdToDec(time_minute);
+   t.tm_hour = bcdToDec(time_hour);
+   
+   int k;
+   t.tm_year = (int) ((mjd - 15078.2) / 365.25);
+   t.tm_mon = (int) ((mjd - 14956.1 - (int)(t.tm_year * 365.25)) / 30.6001);
+   t.tm_mday = (int) (mjd - 14956 - (int)(t.tm_year * 365.25) - (int)(t.tm_mon * 30.6001));
+   k = (t.tm_mon == 14 || t.tm_mon == 15) ? 1 : 0;
+   t.tm_year = t.tm_year + k;
+   t.tm_mon = t.tm_mon - 1 - k * 12;
+   t.tm_mon--;
+
+   t.tm_isdst = -1;
+   t.tm_gmtoff = 0;
+   
+   return timegm(&t);
+}
+
+time_t DVBTime::getDuration(unsigned char time_hour, unsigned char time_minute, unsigned char time_second) {
+   return
+     bcdToDec(time_second)
+   + bcdToDec(time_minute) * 60
+   + bcdToDec(time_hour) *3600;
+}
+
+//taken and adapted from libdtv, (c) Rolf Hakenes
+// CRC32 lookup table for polynomial 0x04c11db7
+unsigned long CRC32::crc_table[256] = {
+   0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b,
+   0x1a864db2, 0x1e475005, 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
+   0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
+   0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
+   0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, 0x791d4014, 0x7ddc5da3,
+   0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
+   0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef,
+   0xb7a96036, 0xb3687d81, 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
+   0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
+   0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
+   0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, 0x34867077, 0x30476dc0,
+   0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
+   0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4,
+   0x0808d07d, 0x0cc9cdca, 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
+   0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
+   0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
+   0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc,
+   0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
+   0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050,
+   0xe9362689, 0xedf73b3e, 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
+   0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
+   0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
+   0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, 0x4f040d56, 0x4bc510e1,
+   0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
+   0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5,
+   0x3f9b762c, 0x3b5a6b9b, 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
+   0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
+   0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
+   0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, 0xc423cd6a, 0xc0e2d0dd,
+   0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
+   0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71,
+   0x92b45ba8, 0x9675461f, 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
+   0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
+   0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
+   0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, 0x119b4be9, 0x155a565e,
+   0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
+   0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a,
+   0x2d15ebe3, 0x29d4f654, 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
+   0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
+   0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
+   0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662,
+   0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
+   0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4};
+
+unsigned long CRC32::crc32 (const char *d, int len, unsigned long crc)
+{
+   register int i;
+
+   for (i=0; i<len; i++)
+      crc = (crc << 8) ^ crc_table[((crc >> 24) ^ *d++) & 0xff];
+
+   return crc;
+}
+
+CRC32::CRC32(const char *d, int len, unsigned long CRCvalue) {
+   data=d;
+   length=len;
+   value=CRCvalue;
+}
+
+
+
+
+
+
+} //end of namespace
+
+
+

libsi/util.h

@@ -0,0 +1,160 @@
+/***************************************************************************
+ *       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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#ifndef LIBSI_UTIL_H
+#define LIBSI_UTIL_H
+
+#include <stdint.h>
+#include <pthread.h>
+#include <time.h>
+
+#define HILO(x) (x##_hi << 8 | x##_lo)
+#define BCD_TIME_TO_SECONDS(x) ((3600 * ((10*((x##_h & 0xF0)>>4)) + (x##_h & 0xF))) + \
+                             (60 * ((10*((x##_m & 0xF0)>>4)) + (x##_m & 0xF))) + \
+                             ((10*((x##_s & 0xF0)>>4)) + (x##_s & 0xF)))
+
+namespace SI {
+
+
+//Holds an array of unsigned char which is deleted
+//when the last object pointing to it is deleted.
+//Optimized for use in libsi.
+class CharArray {
+public:
+   CharArray();
+   
+   CharArray(const CharArray &source);
+   CharArray& operator=(const CharArray &source);
+   ~CharArray();
+   
+   //can be called exactly once
+   void assign(const unsigned char*data, unsigned int size, bool doCopy=true);
+   //compares to a null-terminated string
+   bool operator==(const char *string) const;   
+   //compares to another CharArray (data not necessarily null-terminated)
+   bool operator==(const CharArray &other) const;
+   
+   //returns another CharArray with its offset incremented by offset
+   CharArray operator+(const unsigned int offset) const;
+   
+   //access and convenience methods
+   const unsigned char* getData() const { return data_->data+off; }
+   const unsigned char* getData(int offset) const { return data_->data+offset+off; }
+   template <typename T> const T* getData() const { return (T*)(data_->data+off); }
+   template <typename T> const T* getData(int offset) const { return (T*)(data_->data+offset+off); }
+      //sets p to point to data+offset, increments offset
+   template <typename T> void setPointerAndOffset(const T* &p, unsigned int &offset) const { p=(T*)getData(offset); offset+=sizeof(T); }
+   unsigned char operator[](const unsigned int index) const { return data_->data ? data_->data[off+index] : 0; }
+   int getLength() const { return data_->size; }
+   unsigned short TwoBytes(const unsigned int index) const { return data_->data ? data_->TwoBytes(off+index) : 0; }
+   unsigned long FourBytes(const unsigned int index) const { return data_->data ? data_->FourBytes(off+index) : 0; }
+   
+   void addOffset(unsigned int offset) { off+=offset; }
+private:
+   class Data {
+   public:
+      Data();
+      virtual ~Data();
+      
+      virtual void assign(const unsigned char*data, unsigned int size) = 0;
+      virtual void Delete() = 0;
+      
+      unsigned short TwoBytes(const unsigned int index) const
+         { return (data[index] << 8) | data[index+1]; }
+      unsigned long FourBytes(const unsigned int index) const
+         { return (data[index] << 24) | (data[index+1] << 16) | (data[index+2] << 8) | data[index+3]; }
+      /*#ifdef CHARARRAY_THREADSAFE
+      void Lock();
+      void Unlock();
+      #else
+      void Lock() {}
+      void Unlock() {}
+      #endif
+      Data(const Data& d);
+      void assign(unsigned int size);
+      */
+  
+      const unsigned char*data;
+      unsigned int size;
+  
+      unsigned count_;
+      // count_ is the number of CharArray objects that point at this
+      // count_ must be initialized to 1 by all constructors
+      // (it starts as 1 since it is pointed to by the CharArray object that created it)
+      
+      /*
+      pthread_mutex_t mutex;
+      pid_t lockingPid;
+      pthread_t locked;
+      */
+   };
+   class DataOwnData : public Data {
+   public:
+      DataOwnData() {}
+      virtual ~DataOwnData();
+      virtual void assign(const unsigned char*data, unsigned int size);
+      virtual void Delete();
+   };
+   class DataForeignData : public Data {
+   public:
+      DataForeignData() {}
+      virtual ~DataForeignData();
+      virtual void assign(const unsigned char*data, unsigned int size);
+      virtual void Delete();
+   };
+   Data* data_;
+   unsigned int off;
+};
+
+  
+  
+//abstract base class
+class Parsable {
+public:
+   void CheckParse();
+protected:
+   Parsable();
+   virtual ~Parsable() {}
+   //actually parses given data.
+   virtual void Parse() = 0;
+private:
+   bool parsed;
+};
+
+//taken and adapted from libdtv, (c) Rolf Hakenes and VDR, (c) Klaus Schmidinger
+namespace DVBTime {
+time_t getTime(unsigned char date_hi, unsigned char date_lo, unsigned char timehr, unsigned char timemi, unsigned char timese);
+time_t getDuration(unsigned char timehr, unsigned char timemi, unsigned char timese);
+inline unsigned char bcdToDec(unsigned char b) { return ((b >> 4) & 0x0F) * 10 + (b & 0x0F); }
+};
+
+//taken and adapted from libdtv, (c) Rolf Hakenes
+class CRC32 {
+public:
+   CRC32(const char *d, int len, unsigned long CRCvalue=0xFFFFFFFF);
+   bool isValid() { return crc32(data, length, value) == 0; }
+   static bool isValid(const char *d, int len, unsigned long CRCvalue=0xFFFFFFFF) { return crc32(d, len, CRCvalue) == 0; }
+protected:
+   static unsigned long crc_table[256];
+   static unsigned long crc32 (const char *d, int len, unsigned long CRCvalue);
+   
+   const char *data;
+   int length;
+   unsigned long value;
+};
+
+
+
+} //end of namespace
+
+
+#endif
+