Split FIG0 into several files

1 files changed, 204 insertions, 0 deletions

diff --git a/src/fig/FIG0_8.cpp b/src/fig/FIG0_8.cpp
new file mode 100644
index 0000000..2d25547
--- /dev/null
+++ b/src/fig/FIG0_8.cpp
@@ -0,0 +1,204 @@
+/*
+   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;
+}
+
+}