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vdr/libsi/descriptor.c

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/***************************************************************************
* Copyright (c) 2003 by Marcel Wiesweg *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* $Id: descriptor.c 1.3 2004/01/12 16:17:20 kls Exp $
* *
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***************************************************************************/
#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;
}
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ExtendedEventDescriptor::Item item;
for (Loop::Iterator it; d->itemLoop.hasNext(it); ) {
item=d->itemLoop.getNext(it);
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item.item.getText(tempbuf);
len=strlen(tempbuf);
if (len) {
memcpy(buffer+index, tempbuf, len);
index+=len;
}
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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));
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}
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 LinkageDescriptor::Parse() {
unsigned int offset=0;
data.setPointerAndOffset<const descr_linkage>(s, offset);
privateData.assign(data.getData(offset), getLength()-offset);
}
int LinkageDescriptor::getTransportStreamId() const {
return HILO(s->transport_stream_id);
}
int LinkageDescriptor::getOriginalNetworkId() const {
return HILO(s->original_network_id);
}
int LinkageDescriptor::getServiceId() const {
return HILO(s->service_id);
}
LinkageType LinkageDescriptor::getLinkageType() const {
return (LinkageType)s->linkage_type;
}
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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