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+/*
+ Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ 2011, 2012 Her Majesty the Queen in Right of Canada (Communications
+ Research Center Canada)
+
+ Copyright (C) 2015
+ Matthias P. Braendli, matthias.braendli@mpb.li
+
+ Implementation of FIG0
+ */
+/*
+ This file is part of ODR-DabMux.
+
+ ODR-DabMux 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 3 of the
+ License, or (at your option) any later version.
+
+ ODR-DabMux is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with ODR-DabMux. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "fig/FIG0.h"
+#include "DabMultiplexer.h"
+
+#define PACKED __attribute__ ((packed))
+
+//=========== FIG 0/0 ===========
+
+size_t FIG0_0::fill(uint8_t *buf, size_t max_size)
+{
+ if (max_size < 6) {
+ return 0;
+ }
+
+ FIGtype0_0 *fig0_0;
+ fig0_0 = (FIGtype0_0 *)buf;
+
+ fig0_0->FIGtypeNumber = 0;
+ fig0_0->Length = 5;
+ fig0_0->CN = 0;
+ fig0_0->OE = 0;
+ fig0_0->PD = 0;
+ fig0_0->Extension = 0;
+
+ fig0_0->EId = htons(m_rti->ensemble->id);
+ fig0_0->Change = 0;
+ fig0_0->Al = 0;
+ fig0_0->CIFcnt_hight = (m_rti->currentFrame / 250) % 20;
+ fig0_0->CIFcnt_low = (m_rti->currentFrame % 250);
+
+ return 6;
+}
+
+
+//=========== FIG 0/1 ===========
+
+FIG0_1::FIG0_1(FIGRuntimeInformation *rti) :
+ m_rti(rti),
+ m_initialised(false)
+{
+}
+
+size_t FIG0_1::fill(uint8_t *buf, size_t max_size)
+{
+ size_t remaining = max_size;
+
+ if (not m_initialised) {
+ subchannelFIG0_1 = m_rti->ensemble->subchannels.end();
+ }
+
+ if (max_size < 6) {
+ return 0;
+ }
+
+ auto ensemble = m_rti->ensemble;
+
+ FIGtype0_1 *figtype0_1;
+ figtype0_1 = (FIGtype0_1*)buf;
+
+ figtype0_1->FIGtypeNumber = 0;
+ figtype0_1->Length = 1;
+ figtype0_1->CN = 0;
+ figtype0_1->OE = 0;
+ figtype0_1->PD = 0;
+ figtype0_1->Extension = 1;
+ buf += 2;
+ remaining -= 2;
+
+ // Rotate through the subchannels until there is no more
+ // space in the FIG0/1
+ if (subchannelFIG0_1 == ensemble->subchannels.end()) {
+ subchannelFIG0_1 = ensemble->subchannels.begin();
+ }
+
+ for (; subchannelFIG0_1 != ensemble->subchannels.end();
+ ++subchannelFIG0_1) {
+ dabProtection* protection = &(*subchannelFIG0_1)->protection;
+
+ if ( (protection->form == UEP && remaining < 3) ||
+ (protection->form == EEP && remaining < 4) ) {
+ break;
+ }
+
+ if (protection->form == UEP) {
+ FIG_01_SubChannel_ShortF *fig0_1subchShort =
+ (FIG_01_SubChannel_ShortF*)buf;
+ fig0_1subchShort->SubChId = (*subchannelFIG0_1)->id;
+
+ fig0_1subchShort->StartAdress_high =
+ (*subchannelFIG0_1)->startAddress / 256;
+ fig0_1subchShort->StartAdress_low =
+ (*subchannelFIG0_1)->startAddress % 256;
+
+ fig0_1subchShort->Short_Long_form = 0;
+ fig0_1subchShort->TableSwitch = 0;
+ fig0_1subchShort->TableIndex =
+ protection->uep.tableIndex;
+
+ buf += 3;
+ remaining -= 3;
+ figtype0_1->Length += 3;
+ }
+ else if (protection->form == EEP) {
+ FIG_01_SubChannel_LongF *fig0_1subchLong1 =
+ (FIG_01_SubChannel_LongF*)buf;
+ fig0_1subchLong1->SubChId = (*subchannelFIG0_1)->id;
+
+ fig0_1subchLong1->StartAdress_high =
+ (*subchannelFIG0_1)->startAddress / 256;
+ fig0_1subchLong1->StartAdress_low =
+ (*subchannelFIG0_1)->startAddress % 256;
+
+ fig0_1subchLong1->Short_Long_form = 1;
+ fig0_1subchLong1->Option = protection->eep.GetOption();
+ fig0_1subchLong1->ProtectionLevel =
+ protection->level;
+
+ fig0_1subchLong1->Sub_ChannelSize_high =
+ getSizeCu(*subchannelFIG0_1) / 256;
+ fig0_1subchLong1->Sub_ChannelSize_low =
+ getSizeCu(*subchannelFIG0_1) % 256;
+
+ buf += 4;
+ remaining -= 4;
+ figtype0_1->Length += 4;
+ }
+ }
+
+ return max_size - remaining;
+}
+
+
+//=========== FIG 0/2 ===========
+
+FIG0_2::FIG0_2(FIGRuntimeInformation *rti) :
+ m_rti(rti),
+ m_initialised(false)
+{
+}
+
+size_t FIG0_2::fill(uint8_t *buf, size_t max_size)
+{
+ FIGtype0_2 *fig0_2 = NULL;
+ int cur = 0;
+ ssize_t remaining = max_size;
+
+ if (not m_initialised) {
+ serviceFIG0_2 = m_rti->ensemble->services.end();
+ }
+
+ auto ensemble = m_rti->ensemble;
+
+ // Rotate through the subchannels until there is no more
+ // space
+ if (serviceFIG0_2 == ensemble->services.end()) {
+ serviceFIG0_2 = ensemble->services.begin();
+ }
+
+ for (; serviceFIG0_2 != ensemble->services.end();
+ ++serviceFIG0_2) {
+
+ // filter out services which have no components
+ if ((*serviceFIG0_2)->nbComponent(ensemble->components) == 0) {
+ continue;
+ }
+
+ // Exclude Fidc type services, TODO why ?
+ auto type = (*serviceFIG0_2)->getType(ensemble);
+ if (type == Fidc) {
+ continue;
+ }
+
+ ++cur;
+
+ if (fig0_2 == NULL) {
+ fig0_2 = (FIGtype0_2 *)buf;
+
+ fig0_2->FIGtypeNumber = 0;
+ fig0_2->Length = 1;
+ fig0_2->CN = 0;
+ fig0_2->OE = 0;
+ fig0_2->PD = (type == Audio) ? 0 : 1;
+ fig0_2->Extension = 2;
+ buf += 2;
+ remaining -= 2;
+ }
+
+ if (type == Audio and
+ remaining < 3 + 2 *
+ (*serviceFIG0_2)->nbComponent(ensemble->components)) {
+ break;
+ }
+
+ if (type != Audio and
+ remaining < 5 + 2 *
+ (*serviceFIG0_2)->nbComponent(ensemble->components)) {
+ break;
+ }
+
+ if (type == Audio) {
+ auto fig0_2serviceAudio = (FIGtype0_2_Service*)buf;
+
+ fig0_2serviceAudio->SId = htons((*serviceFIG0_2)->id);
+ fig0_2serviceAudio->Local_flag = 0;
+ fig0_2serviceAudio->CAId = 0;
+ fig0_2serviceAudio->NbServiceComp =
+ (*serviceFIG0_2)->nbComponent(ensemble->components);
+ buf += 3;
+ fig0_2->Length += 3;
+ remaining -= 3;
+ }
+ else {
+ auto fig0_2serviceData = (FIGtype0_2_Service_data*)buf;
+
+ fig0_2serviceData->SId = htonl((*serviceFIG0_2)->id);
+ fig0_2serviceData->Local_flag = 0;
+ fig0_2serviceData->CAId = 0;
+ fig0_2serviceData->NbServiceComp =
+ (*serviceFIG0_2)->nbComponent(ensemble->components);
+ buf += 5;
+ fig0_2->Length += 5;
+ remaining -= 5;
+ }
+
+ int curCpnt = 0;
+ for (auto component = getComponent(
+ ensemble->components, (*serviceFIG0_2)->id );
+ component != ensemble->components.end();
+ component = getComponent(
+ ensemble->components,
+ (*serviceFIG0_2)->id,
+ component )
+ ) {
+ auto subchannel = getSubchannel(
+ ensemble->subchannels, (*component)->subchId);
+
+ if (subchannel == ensemble->subchannels.end()) {
+ etiLog.log(error,
+ "Subchannel %i does not exist for component "
+ "of service %i\n",
+ (*component)->subchId, (*component)->serviceId);
+ throw MuxInitException();
+ }
+
+ switch ((*subchannel)->type) {
+ case Audio:
+ {
+ auto audio_description = (FIGtype0_2_audio_component*)buf;
+ audio_description->TMid = 0;
+ audio_description->ASCTy = (*component)->type;
+ audio_description->SubChId = (*subchannel)->id;
+ audio_description->PS = ((curCpnt == 0) ? 1 : 0);
+ audio_description->CA_flag = 0;
+ }
+ break;
+ case DataDmb:
+ {
+ auto data_description = (FIGtype0_2_data_component*)buf;
+ data_description->TMid = 1;
+ data_description->DSCTy = (*component)->type;
+ data_description->SubChId = (*subchannel)->id;
+ data_description->PS = ((curCpnt == 0) ? 1 : 0);
+ data_description->CA_flag = 0;
+ }
+ break;
+ case Packet:
+ {
+ auto packet_description = (FIGtype0_2_packet_component*)buf;
+ packet_description->TMid = 3;
+ packet_description->setSCId((*component)->packet.id);
+ packet_description->PS = ((curCpnt == 0) ? 1 : 0);
+ packet_description->CA_flag = 0;
+ }
+ break;
+ default:
+ etiLog.log(error,
+ "Component type not supported\n");
+ throw MuxInitException();
+ }
+ buf += 2;
+ fig0_2->Length += 2;
+ remaining -= 2;
+ if (remaining < 0) {
+ etiLog.log(error,
+ "Sorry, no space left in FIG 0/2 to insert "
+ "component %i of program service %i.\n",
+ curCpnt, cur);
+ throw MuxInitException();
+ }
+ ++curCpnt;
+ }
+ }
+ return max_size - remaining;
+}
+
+
+//=========== FIG 0/3 ===========
+
+FIG0_3::FIG0_3(FIGRuntimeInformation *rti) :
+ m_rti(rti)
+{
+}
+
+size_t FIG0_3::fill(uint8_t *buf, size_t max_size)
+{
+ ssize_t remaining = max_size;
+ auto ensemble = m_rti->ensemble;
+
+ FIGtype0_3_header *fig0_3_header = NULL;
+ FIGtype0_3_data *fig0_3_data = NULL;
+
+ for (auto& component : ensemble->components) {
+ auto subchannel = getSubchannel(ensemble->subchannels,
+ component->subchId);
+
+ if (subchannel == ensemble->subchannels.end()) {
+ etiLog.log(error,
+ "Subchannel %i does not exist for component "
+ "of service %i\n",
+ component->subchId, component->serviceId);
+ throw MuxInitException();
+ }
+
+ if ((*subchannel)->type != Packet)
+ continue;
+
+ if (fig0_3_header == NULL) {
+ fig0_3_header = (FIGtype0_3_header*)buf;
+ fig0_3_header->FIGtypeNumber = 0;
+ fig0_3_header->Length = 1;
+ fig0_3_header->CN = 0;
+ fig0_3_header->OE = 0;
+ fig0_3_header->PD = 0;
+ fig0_3_header->Extension = 3;
+
+ buf += 2;
+ remaining -= 2;
+ }
+
+ /* Warning: When bit SCCA_flag is unset(0), the multiplexer
+ * R&S does not send the SCCA field. But, in the Factum ETI
+ * analyzer, if this field is not there, it is an error.
+ */
+ fig0_3_data = (FIGtype0_3_data*)buf;
+ fig0_3_data->setSCId(component->packet.id);
+ fig0_3_data->rfa = 0;
+ fig0_3_data->SCCA_flag = 0;
+ // if 0, datagroups are used
+ fig0_3_data->DG_flag = !component->packet.datagroup;
+ fig0_3_data->rfu = 0;
+ fig0_3_data->DSCTy = component->type;
+ fig0_3_data->SubChId = (*subchannel)->id;
+ fig0_3_data->setPacketAddress(component->packet.address);
+ if (m_rti->factumAnalyzer) {
+ fig0_3_data->SCCA = 0;
+ }
+
+ fig0_3_header->Length += 5;
+ buf += 5;
+ remaining -= 5;
+ if (m_rti->factumAnalyzer) {
+ fig0_3_header->Length += 2;
+ buf += 2;
+ remaining -= 2;
+ }
+
+ if (remaining < 0) {
+ etiLog.level(error) <<
+ "can't add FIG 0/3 to FIB, "
+ "too many packet services";
+ throw MuxInitException();
+ }
+ }
+
+ return max_size - remaining;
+}
+
+//=========== FIG 0/17 ===========
+
+FIG0_17::FIG0_17(FIGRuntimeInformation *rti) :
+ m_rti(rti),
+ m_initialised(false)
+{
+}
+
+size_t FIG0_17::fill(uint8_t *buf, size_t max_size)
+{
+ ssize_t remaining = max_size;
+
+ if (not m_initialised) {
+ serviceFIG0_17 = m_rti->ensemble->services.end();
+ }
+
+ auto ensemble = m_rti->ensemble;
+
+ FIGtype0* fig0 = NULL;
+
+ if (serviceFIG0_17 == ensemble->services.end()) {
+ serviceFIG0_17 = ensemble->services.begin();
+ }
+ for (; serviceFIG0_17 != ensemble->services.end();
+ ++serviceFIG0_17) {
+
+ if ( (*serviceFIG0_17)->pty == 0 &&
+ (*serviceFIG0_17)->language == 0) {
+ continue;
+ }
+
+ if (fig0 == NULL) {
+ fig0 = (FIGtype0*)buf;
+ fig0->FIGtypeNumber = 0;
+ fig0->Length = 1;
+ fig0->CN = 0;
+ fig0->OE = 0;
+ fig0->PD = 0;
+ fig0->Extension = 17;
+ buf += 2;
+ remaining -= 2;
+ }
+
+ if ((*serviceFIG0_17)->language == 0) {
+ if (remaining < 4) {
+ break;
+ }
+ }
+ else {
+ if (remaining < 5) {
+ break;
+ }
+ }
+
+ auto programme = (FIGtype0_17_programme*)buf;
+ programme->SId = htons((*serviceFIG0_17)->id);
+ programme->SD = 1;
+ programme->PS = 0;
+ programme->L = (*serviceFIG0_17)->language != 0;
+ programme->CC = 0;
+ programme->Rfa = 0;
+ programme->NFC = 0;
+ if ((*serviceFIG0_17)->language == 0) {
+ buf[3] = (*serviceFIG0_17)->pty;
+ fig0->Length += 4;
+ buf += 4;
+ remaining -= 4;
+ }
+ else {
+ buf[3] = (*serviceFIG0_17)->language;
+ buf[4] = (*serviceFIG0_17)->pty;
+ fig0->Length += 5;
+ buf += 5;
+ remaining -= 5;
+ }
+ }
+
+ return max_size - remaining;
+}
+
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