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#include "network.h"
#include "table.impl.h"
#include <boost/bind.hpp>
#include <linux/dvb/frontend.h>
#include <safeMapFind.h>
#include <compileTimeFormatter.h>
namespace AdHoc {
StreamWriterT('x') {
template<typename ... Pn>
static void write(stream & s, const int & p, const Pn & ... pn)
{
s << std::hex << p;
StreamWriter::next(s, pn...);
}
};
}
namespace P2PVR {
namespace DVBSI {
struct NetworkStreamsHeader {
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
u_char reserved1 :4;
u_char transport_stream_loop_length_hi :4;
#else
u_char transport_stream_loop_length_hi :4;
u_char reserved1 :4;
#endif
u_char transport_stream_loop_length_lo;
u_char data[];
} __attribute__((packed));
struct TransportStream {
uint16_t transportStreamId;
uint16_t originalNetworkId;
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
u_char reserved1 :4;
u_char descriptors_length_hi :4;
#else
u_char descriptors_length_hi :4;
u_char reserved1 :4;
#endif
u_char descriptors_length_lo;
u_char data[];
} __attribute__((packed));
struct TerrestrialDeliveryDescriptor {
uint32_t Frequency;
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint8_t Bandwidth : 3;
uint8_t Priority : 1;
uint8_t TimeSlicing : 1;
uint8_t MpeFec : 1;
uint8_t _reserved1 : 2;
#else
uint8_t _reserved1 : 2;
uint8_t MpeFec : 1;
uint8_t TimeSlicing : 1;
uint8_t Priority : 1;
uint8_t Bandwidth : 3;
#endif
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint8_t Constellation : 2;
uint8_t Hierarchy : 3;
uint8_t CodeRateHP : 3;
#else
uint8_t CodeRateHP : 3;
uint8_t Hierarchy : 3;
uint8_t Constellation : 2;
#endif
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint8_t CodeRateLP : 3;
uint8_t GuardInterval : 2;
uint8_t TransmissionMode : 2;
uint8_t OtherFrequencyFlag : 1;
#else
uint8_t OtherFrequencyFlag : 1;
uint8_t TransmissionMode : 2;
uint8_t GuardInterval : 2;
uint8_t CodeRateLP : 3;
#endif
uint32_t _reserved2;
} __attribute__((packed));
struct CableDeliveryDescriptor {
uint32_t Frequency;
uint8_t _reserved2;
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint8_t _reserved1 : 4;
uint8_t FecOuter : 4;
#else
uint8_t FecOuter : 4;
uint8_t _reserved1 : 4;
#endif
uint8_t Modulation;
uint8_t SymbolRate1;
uint8_t SymbolRate2;
uint8_t SymbolRate3;
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint8_t SymbolRate4 : 4;
uint8_t FecInner : 4;
#else
uint8_t FecInner : 4;
uint8_t SymbolRate4 : 4;
#endif
} __attribute__((packed));
struct SatelliteDeliveryDescriptor {
uint32_t Frequency;
uint16_t OrbitalPosition;
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint8_t WestEastFlag : 1;
uint8_t Polarization : 2;
uint8_t RollOff : 2;
uint8_t ModulationSystem : 1;
uint8_t ModulationType : 2;
#else
uint8_t ModulationType : 2;
uint8_t ModulationSystem : 1;
uint8_t RollOff : 2;
uint8_t Polarization : 2;
uint8_t WestEastFlag : 1;
#endif
uint8_t SymbolRate1;
uint8_t SymbolRate2;
uint8_t SymbolRate3;
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint8_t SymbolRate4 : 4;
uint8_t FecInner : 4;
#else
uint8_t FecInner : 4;
uint8_t SymbolRate4 : 4;
#endif
} __attribute__((packed));
struct ServiceListDescriptor {
uint16_t ServiceId;
uint8_t ServiceType;
} __attribute__((packed));
bool
SiNetworkInformationParser::CheckTableId(u_char tableId) const
{
return (tableId == 0x40 || tableId == 0x041);
}
void
SiNetworkInformationParser::ParseSiTable(const struct NetworkInformation * nit, const ::DVBSI::NetworkPtr & n)
{
n->NetworkId = ntohs(nit->header.content_id);
auto nsh = ParseDescriptors<NetworkStreamsHeader>(nit->data, HILO(nit->network_descriptor_length),
0x40, boost::bind(&SiNetworkInformationParser::parseDescriptor_NetworkName, n, _1, _2));
LoopOver<TransportStream>(nsh->data, HILO(nsh->transport_stream_loop_length), [this,n](const TransportStream * ts) {
::DVBSI::NetworkTransportStreamPtr nts = new ::DVBSI::NetworkTransportStream();
nts->TransportStreamId = ntohs(ts->transportStreamId);
nts->NetworkId = n->NetworkId;
nts->OriginalNetworkId = ntohs(ts->originalNetworkId);
ParseDescriptors(ts->data, HILO(ts->descriptors_length),
0x41, boost::bind(&SiNetworkInformationParser::parseDescriptor_ServiceList, nts, _1, _2),
0x43, boost::bind(&SiNetworkInformationParser::parseDescriptor_SatelliteDelivery, nts, _1, _2),
0x44, boost::bind(&SiNetworkInformationParser::parseDescriptor_CableDelivery, nts, _1, _2),
0x5a, boost::bind(&SiNetworkInformationParser::parseDescriptor_TerrestrialDelivery, nts, _1, _2));
n->TransportStreams.push_back(nts);
});
}
void
SiNetworkInformationParser::parseDescriptor_NetworkName(::DVBSI::NetworkPtr n, const u_char * p, size_t len)
{
n->Name = *convert((const char *)p, len);
}
AdHocFormatter(WhatIsntSupported, "%? %x");
class NotSupported : public std::runtime_error {
public:
NotSupported(const char * what, int id) : std::runtime_error(WhatIsntSupported::get(what, id)) { }
};
#define SINOTSUPPORTED(What) \
class What##NotSupported : public NotSupported { \
public: What##NotSupported(short id) : NotSupported(#What, id) { } \
};
std::map<short, fe_bandwidth_t> tbandwidths {
{0, BANDWIDTH_8_MHZ},
{1, BANDWIDTH_7_MHZ},
{2, BANDWIDTH_6_MHZ},
{3, BANDWIDTH_5_MHZ}
};
SINOTSUPPORTED(Bandwidth);
std::map<short, fe_modulation_t> tconstellations {
{0, QPSK},
{1, QAM_16},
{2, QAM_64}
};
SINOTSUPPORTED(Constellation);
std::map<short, fe_hierarchy_t> thierarchies {
{0, HIERARCHY_NONE},
{1, HIERARCHY_1},
{2, HIERARCHY_2},
{3, HIERARCHY_4},
{4, HIERARCHY_NONE},
{5, HIERARCHY_1},
{6, HIERARCHY_2},
{7, HIERARCHY_4}
};
SINOTSUPPORTED(Hierarchy);
std::map<short, fe_code_rate_t> tcoderates {
{0, FEC_1_2},
{1, FEC_2_3},
{2, FEC_3_4},
{3, FEC_5_6},
{4, FEC_7_8}
};
SINOTSUPPORTED(CodeRate);
std::map<short, fe_guard_interval_t> tguardintervals {
{0, GUARD_INTERVAL_1_32},
{1, GUARD_INTERVAL_1_16},
{2, GUARD_INTERVAL_1_8},
{3, GUARD_INTERVAL_1_4}
};
SINOTSUPPORTED(GuardInterval);
std::map<short, fe_transmit_mode_t> ttransmitmodes {
{0, TRANSMISSION_MODE_2K},
{1, TRANSMISSION_MODE_8K},
{2, TRANSMISSION_MODE_4K}
};
SINOTSUPPORTED(TransmissionMode);
void
SiNetworkInformationParser::parseDescriptor_TerrestrialDelivery(::DVBSI::NetworkTransportStreamPtr nts, const u_char * data, size_t len)
{
assert(len == sizeof(TerrestrialDeliveryDescriptor));
auto tdd = reinterpret_cast<const TerrestrialDeliveryDescriptor *>(data);
::DVBSI::TerrestrialDeliveryPtr td = new ::DVBSI::TerrestrialDelivery;
td->Frequency = ((uint64_t)ntohl(tdd->Frequency)) * 10;
td->TransportStreamId = nts->TransportStreamId;
td->Bandwidth = AdHoc::safeMapLookup<BandwidthNotSupported>(tbandwidths, tdd->Bandwidth);
td->Priority = tdd->Priority;
td->TimeSlicing = tdd->TimeSlicing;
td->MpeFec = tdd->MpeFec;
td->Constellation = AdHoc::safeMapLookup<ConstellationNotSupported>(tconstellations, tdd->Constellation);
td->Hierarchy = AdHoc::safeMapLookup<HierarchyNotSupported>(thierarchies, tdd->Hierarchy);
td->CodeRateHP = AdHoc::safeMapLookup<CodeRateNotSupported>(tcoderates, tdd->CodeRateHP);
td->CodeRateLP = AdHoc::safeMapLookup<CodeRateNotSupported>(tcoderates, tdd->CodeRateLP);
td->GuardInterval = AdHoc::safeMapLookup<GuardIntervalNotSupported>(tguardintervals, tdd->GuardInterval);
td->TransmissionMode = AdHoc::safeMapLookup<TransmissionModeNotSupported>(ttransmitmodes, tdd->TransmissionMode);
td->OtherFrequencyFlag = tdd->OtherFrequencyFlag;
nts->Terrestrial = td;
}
void
SiNetworkInformationParser::parseDescriptor_CableDelivery(::DVBSI::NetworkTransportStreamPtr nts, const u_char * data, size_t len)
{
assert(len == sizeof(CableDeliveryDescriptor));
auto cdd = reinterpret_cast<const CableDeliveryDescriptor *>(data);
::DVBSI::CableDeliveryPtr cd = new ::DVBSI::CableDelivery;
cd->Frequency = ((uint64_t)ntohl(cdd->Frequency)) * 10;
cd->TransportStreamId = nts->TransportStreamId;
cd->FecOuter = cdd->FecOuter;
cd->Modulation = cdd->Modulation;
cd->SymbolRate = HILO4(cdd->SymbolRate);
cd->FecInner = cdd->FecInner;
nts->Cable = cd;
}
void
SiNetworkInformationParser::parseDescriptor_SatelliteDelivery(::DVBSI::NetworkTransportStreamPtr nts, const u_char * data, size_t len)
{
assert(len == sizeof(SatelliteDeliveryDescriptor));
auto sdd = reinterpret_cast<const SatelliteDeliveryDescriptor *>(data);
::DVBSI::SatelliteDeliveryPtr sd = new ::DVBSI::SatelliteDelivery;
sd->Frequency = ((uint64_t)ntohl(sdd->Frequency)) * 10;
sd->TransportStreamId = nts->TransportStreamId;
sd->OrbitalPosition = ntohs(sdd->OrbitalPosition);
sd->WestEastFlag = sdd->WestEastFlag;
sd->Polarization = sdd->Polarization;
sd->RollOff = sdd->RollOff;
sd->ModulationSystem = sdd->ModulationSystem;
sd->ModulationType = sdd->ModulationType;
sd->SymbolRate = HILO4(sdd->SymbolRate);
sd->FecInner = sdd->FecInner;
nts->Satellite = sd;
}
void
SiNetworkInformationParser::parseDescriptor_ServiceList(::DVBSI::NetworkTransportStreamPtr nts, const u_char * data, size_t len)
{
auto end = data + len;
while (data < end) {
auto d = reinterpret_cast<const ServiceListDescriptor *>(data);
nts->Services.push_back({ ntohs(d->ServiceId), nts->TransportStreamId, d->ServiceType });
data += sizeof(ServiceListDescriptor);
}
}
template DLL_PUBLIC SiTableParser<NetworkInformation, ::DVBSI::NetworkPtr, u_char>::SiTableParser();
template bool DLL_PUBLIC SiTableParser<NetworkInformation, ::DVBSI::NetworkPtr, u_char>::ParseInfoTable(const u_char * data, size_t len);
}
}
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