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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) 2016
+ Matthias P. Braendli, matthias.braendli@mpb.li
+ */
+/*
+ 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_8.h"
+#include "utils.h"
+
+namespace FIC {
+
+FIG0_8::FIG0_8(FIGRuntimeInformation *rti) :
+ m_rti(rti),
+ m_initialised(false),
+ m_transmit_programme(false)
+{
+}
+
+FillStatus FIG0_8::fill(uint8_t *buf, size_t max_size)
+{
+ FillStatus fs;
+ auto ensemble = m_rti->ensemble;
+ ssize_t remaining = max_size;
+
+ if (not m_initialised) {
+ componentFIG0_8 = m_rti->ensemble->components.end();
+ m_initialised = true;
+ }
+
+ FIGtype0* fig0 = NULL;
+
+ for (; componentFIG0_8 != ensemble->components.end();
+ ++componentFIG0_8) {
+
+ auto service = getService(*componentFIG0_8,
+ ensemble->services);
+ auto subchannel = getSubchannel(ensemble->subchannels,
+ (*componentFIG0_8)->subchId);
+
+ if (subchannel == ensemble->subchannels.end()) {
+ etiLog.log(error,
+ "Subchannel %i does not exist for component "
+ "of service %i\n",
+ (*componentFIG0_8)->subchId,
+ (*componentFIG0_8)->serviceId);
+ throw MuxInitException();
+ }
+
+ if (m_transmit_programme and (*service)->isProgramme(ensemble)) {
+ const int required_size =
+ ((*subchannel)->type == subchannel_type_t::Packet ? 5 : 4);
+
+ if (fig0 == NULL) {
+ if (remaining < 2 + required_size) {
+ break;
+ }
+ fig0 = (FIGtype0*)buf;
+ fig0->FIGtypeNumber = 0;
+ fig0->Length = 1;
+ fig0->CN = 0;
+ fig0->OE = 0;
+ fig0->PD = 0;
+ fig0->Extension = 8;
+ buf += 2;
+ remaining -= 2;
+ }
+ else if (remaining < required_size) {
+ break;
+ }
+
+ if ((*subchannel)->type == subchannel_type_t::Packet) { // Data packet
+ buf[0] = ((*componentFIG0_8)->serviceId >> 8) & 0xFF;
+ buf[1] = ((*componentFIG0_8)->serviceId) & 0xFF;
+ fig0->Length += 2;
+ buf += 2;
+ remaining -= 2;
+
+ FIGtype0_8_long* definition = (FIGtype0_8_long*)buf;
+ memset(definition, 0, 3);
+ definition->ext = 0; // no rfa
+ definition->SCIdS = (*componentFIG0_8)->SCIdS;
+ definition->LS = 1;
+ definition->setSCId((*componentFIG0_8)->packet.id);
+ fig0->Length += 3;
+ buf += 3; // 8 minus rfa
+ remaining -= 3;
+ }
+ else { // Audio, data stream or FIDC
+ buf[0] = ((*componentFIG0_8)->serviceId >> 8) & 0xFF;
+ buf[1] = ((*componentFIG0_8)->serviceId) & 0xFF;
+
+ fig0->Length += 2;
+ buf += 2;
+ remaining -= 2;
+
+ FIGtype0_8_short* definition = (FIGtype0_8_short*)buf;
+ memset(definition, 0, 2);
+ definition->ext = 0; // no rfa
+ definition->SCIdS = (*componentFIG0_8)->SCIdS;
+ definition->LS = 0;
+ definition->MscFic = 0;
+ definition->Id = (*componentFIG0_8)->subchId;
+ fig0->Length += 2;
+ buf += 2; // 4 minus rfa
+ remaining -= 2;
+ }
+ }
+ else if (!m_transmit_programme and !(*service)->isProgramme(ensemble)) {
+ // Data
+ const int required_size =
+ ((*subchannel)->type == subchannel_type_t::Packet ? 7 : 6);
+
+ if (fig0 == NULL) {
+ if (remaining < 2 + required_size) {
+ break;
+ }
+ fig0 = (FIGtype0*)buf;
+ fig0->FIGtypeNumber = 0;
+ fig0->Length = 1;
+ fig0->CN = 0;
+ fig0->OE = 0;
+ fig0->PD = 1;
+ fig0->Extension = 8;
+ buf += 2;
+ remaining -= 2;
+ }
+ else if (remaining < required_size) {
+ break;
+ }
+
+ if ((*subchannel)->type == subchannel_type_t::Packet) { // Data packet
+ buf[0] = ((*componentFIG0_8)->serviceId >> 8) & 0xFF;
+ buf[1] = ((*componentFIG0_8)->serviceId) & 0xFF;
+ fig0->Length += 4;
+ buf += 4;
+ remaining -= 4;
+
+ FIGtype0_8_long* definition = (FIGtype0_8_long*)buf;
+ memset(definition, 0, 3);
+ definition->ext = 0; // no rfa
+ definition->SCIdS = (*componentFIG0_8)->SCIdS;
+ definition->LS = 1;
+ definition->setSCId((*componentFIG0_8)->packet.id);
+ fig0->Length += 3;
+ buf += 3; // 8 minus rfa
+ remaining -= 3;
+ }
+ else { // Audio, data stream or FIDC
+ buf[0] = ((*componentFIG0_8)->serviceId >> 8) & 0xFF;
+ buf[1] = ((*componentFIG0_8)->serviceId) & 0xFF;
+ fig0->Length += 4;
+ buf += 4;
+ remaining -= 4;
+
+ FIGtype0_8_short* definition = (FIGtype0_8_short*)buf;
+ memset(definition, 0, 2);
+ definition->ext = 0; // no rfa
+ definition->SCIdS = (*componentFIG0_8)->SCIdS;
+ definition->LS = 0;
+ definition->MscFic = 0;
+ definition->Id = (*componentFIG0_8)->subchId;
+ fig0->Length += 2;
+ buf += 2; // 4 minus rfa
+ remaining -= 2;
+ }
+ }
+ }
+
+ if (componentFIG0_8 == ensemble->components.end()) {
+ componentFIG0_8 = ensemble->components.begin();
+
+ // The full database is sent every second full loop
+ fs.complete_fig_transmitted = m_transmit_programme;
+
+ m_transmit_programme = not m_transmit_programme;
+ // Alternate between data and and programme FIG0/13,
+ // do not mix fig0 with PD=0 with extension 13 stuff
+ // that actually needs PD=1, and vice versa
+ }
+
+ fs.num_bytes_written = max_size - remaining;
+ return fs;
+}
+
+}
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