summaryrefslogtreecommitdiffstats
path: root/src/fig/FIG0_18.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/fig/FIG0_18.cpp')
-rw-r--r--src/fig/FIG0_18.cpp106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/fig/FIG0_18.cpp b/src/fig/FIG0_18.cpp
new file mode 100644
index 0000000..9edc3d5
--- /dev/null
+++ b/src/fig/FIG0_18.cpp
@@ -0,0 +1,106 @@
+/*
+ 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_18.h"
+#include "utils.h"
+
+namespace FIC {
+
+FIG0_18::FIG0_18(FIGRuntimeInformation *rti) :
+ m_rti(rti),
+ m_initialised(false)
+{
+}
+
+FillStatus FIG0_18::fill(uint8_t *buf, size_t max_size)
+{
+ FillStatus fs;
+ ssize_t remaining = max_size;
+
+ if (not m_initialised) {
+ service = m_rti->ensemble->services.end();
+ m_initialised = true;
+ }
+
+ auto ensemble = m_rti->ensemble;
+
+ FIGtype0* fig0 = NULL;
+
+ for (; service != ensemble->services.end();
+ ++service) {
+
+ if ( (*service)->ASu == 0 ) {
+ continue;
+ }
+
+ const ssize_t numclusters = (*service)->clusters.size();
+
+ const int required_size = 5 + numclusters;
+
+
+ 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 = 18;
+ buf += 2;
+ remaining -= 2;
+ }
+ else if (remaining < required_size) {
+ break;
+ }
+
+ auto programme = (FIGtype0_18*)buf;
+ programme->SId = htons((*service)->id);
+ programme->ASu = htons((*service)->ASu);
+ programme->Rfa = 0;
+ programme->NumClusters = numclusters;
+ buf += 5;
+
+ for (uint8_t cluster : (*service)->clusters) {
+ *(buf++) = cluster;
+ }
+
+ fig0->Length += 5 + numclusters;
+ remaining -= 5 + numclusters;
+ }
+
+ if (service == ensemble->services.end()) {
+ service = ensemble->services.begin();
+ fs.complete_fig_transmitted = true;
+ }
+
+ fs.num_bytes_written = max_size - remaining;
+ return fs;
+}
+
+}