diff options
Diffstat (limited to 'src/fig')
| -rw-r--r-- | src/fig/FIG0.cpp | 121 | ||||
| -rw-r--r-- | src/fig/FIG0.h | 22 |
2 files changed, 135 insertions, 8 deletions
diff --git a/src/fig/FIG0.cpp b/src/fig/FIG0.cpp index b560e4c..1e179cf 100644 --- a/src/fig/FIG0.cpp +++ b/src/fig/FIG0.cpp @@ -686,7 +686,17 @@ FillStatus FIG0_6::fill(uint8_t *buf, size_t max_size) for (; linkageSetFIG0_6 != ensemble->linkagesets.end(); ++linkageSetFIG0_6) { - const int required_size = 2; + const bool PD = false; + const bool ILS = (*linkageSetFIG0_6)->international; + + // need to add key service to num_ids + const size_t num_ids = 1 + (*linkageSetFIG0_6)->id_list.size(); + + const size_t headersize = sizeof(struct FIGtype0_6_header); + const int required_size = sizeof(struct FIGtype0_6) + + (num_ids > 0 ? + headersize + (PD == 0 ? (ILS == 0 ? 2*num_ids : 3*num_ids) : 4*num_ids) : + 0); if (fig0 == NULL) { if (remaining < 2 + required_size) { @@ -697,7 +707,7 @@ FillStatus FIG0_6::fill(uint8_t *buf, size_t max_size) fig0->Length = 1; fig0->CN = 0; fig0->OE = 0; - fig0->PD = 0; + fig0->PD = PD; fig0->Extension = 5; buf += 2; @@ -709,17 +719,112 @@ FillStatus FIG0_6::fill(uint8_t *buf, size_t max_size) FIGtype0_6 *fig0_6 = (FIGtype0_6*)buf; - fig0_6->IdListFlag = 1; + fig0_6->IdListFlag = (num_ids > 0); fig0_6->LA = (*linkageSetFIG0_6)->active; fig0_6->SH = (*linkageSetFIG0_6)->hard; - fig0_6->ILS = (*linkageSetFIG0_6)->international; + fig0_6->ILS = ILS; fig0_6->LSN = (*linkageSetFIG0_6)->lsn; -#error "handle FIG insertion and CEI properly" + fig0->Length += sizeof(struct FIGtype0_6); + buf += sizeof(struct FIGtype0_6); + remaining -= sizeof(struct FIGtype0_6); - fig0->Length += 2; - buf += 2; - remaining -= 2; + if (num_ids > 0) { + FIGtype0_6_header *header = (FIGtype0_6_header*)buf; + header->rfu = 0; + if (num_ids > 0x0F) { + etiLog.log(error, "Too large number of links for linkage set 0x%04x", + (*linkageSetFIG0_6)->lsn); + throw MuxInitException(); + } + + header->IdLQ = 0; // TODO not only DAB + header->rfa = 0; + header->num_ids = num_ids; + + fig0->Length += headersize; + buf += headersize; + remaining -= headersize; + + // TODO insert key service first + const std::string keyserviceuid =(*linkageSetFIG0_6)->keyservice; + const auto& keyservice = std::find_if( + ensemble->services.begin(), + ensemble->services.end(), + [&](const std::shared_ptr<DabService> srv) { + return srv->uid == keyserviceuid; + }); + + if (keyservice == ensemble->services.end()) { + etiLog.log(error, "Invalid key service %s in linkage set 0x%04x", + keyserviceuid.c_str(), (*linkageSetFIG0_6)->lsn); + throw MuxInitException(); + } + for (const auto& l : (*linkageSetFIG0_6)->id_list) { + if (l.type != ServiceLinkType::DAB) { + etiLog.log(error, "TODO only DAB links supported. (linkage set 0x%04x)", + (*linkageSetFIG0_6)->lsn); + throw MuxInitException(); + } + } + + if (not PD and not ILS) { + buf[0] = (*keyservice)->id >> 8; + buf[1] = (*keyservice)->id & 0xFF; + fig0->Length += 2; + buf += 2; + remaining -= 2; + + for (const auto& l : (*linkageSetFIG0_6)->id_list) { + buf[0] = l.id >> 8; + buf[1] = l.id & 0xFF; + fig0->Length += 2; + buf += 2; + remaining -= 2; + } + } + if (not PD and ILS) { + buf[0] = ensemble->ecc; + buf[1] = (*keyservice)->id >> 8; + buf[2] = (*keyservice)->id & 0xFF; + fig0->Length += 3; + buf += 3; + remaining -= 3; + + for (const auto& l : (*linkageSetFIG0_6)->id_list) { + buf[0] = l.ecc; + buf[1] = l.id >> 8; + buf[2] = l.id & 0xFF; + fig0->Length += 3; + buf += 3; + remaining -= 3; + } + } + else { // PD == true + // TODO if IdLQ is 11, MSB shall be zero + buf[0] = (*keyservice)->id >> 24; + buf[1] = (*keyservice)->id >> 16; + buf[2] = (*keyservice)->id >> 8; + buf[3] = (*keyservice)->id & 0xFF; + fig0->Length += 4; + buf += 4; + remaining -= 4; + + for (const auto& l : (*linkageSetFIG0_6)->id_list) { + buf[0] = l.id >> 24; + buf[1] = l.id >> 16; + buf[2] = l.id >> 8; + buf[3] = l.id & 0xFF; + fig0->Length += 4; + buf += 4; + remaining -= 4; + } + } + } + + fig0->Length += required_size; + buf += required_size; + remaining -= required_size; } if (linkageSetFIG0_6 == ensemble->linkagesets.end()) { diff --git a/src/fig/FIG0.h b/src/fig/FIG0.h index 5a8a69f..0109219 100644 --- a/src/fig/FIG0.h +++ b/src/fig/FIG0.h @@ -29,6 +29,7 @@ #include <map> #include <set> #include <vector> +#include <list> #include "fig/FIG.h" @@ -163,6 +164,27 @@ class FIG0_6 : public IFIG std::list<std::shared_ptr<LinkageSet> >::iterator linkageSetFIG0_6; }; +// FIG0/6 needs a change indicator, which is a short-form FIG (i.e. without the list) +// and with C/N 1. Since this has another rate, it's implemented in another class. +// +// This is signalled once per second for a period of five seconds +// (TS 103 176 5.2.4.3). +class FIG0_6_CEI : public IFIG +{ + public: + FIG0_6_CEI(FIGRuntimeInformation* rti); + virtual FillStatus fill(uint8_t *buf, size_t max_size); + virtual FIG_rate repetition_rate(void) { return FIG_rate::B; } + + virtual const int figtype(void) const { return 0; } + virtual const int figextension(void) const { return 6; } + + private: + FIGRuntimeInformation *m_rti; + bool m_initialised; + std::list<std::shared_ptr<LinkageSet> >::iterator linkageSetFIG0_6; +}; + // FIG type 0/8 // The Extension 8 of FIG type 0 (FIG 0/8) provides information to link // together the service component description that is valid within the ensemble |