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author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-10-02 14:40:19 +0200 |
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committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2016-10-02 14:40:19 +0200 |
commit | c21a6828183cdcc08533a83530156e5758aca534 (patch) | |
tree | 47a5fab506ad522bb78b50ad87c2ee45179d87cd /src/fig/FIG0_8.cpp | |
parent | b78139a2fe6ee76bcb85b240733bf803c5430286 (diff) | |
parent | 369874e1c38680d27f187aa0297b0ce00b3f9fa0 (diff) | |
download | dabmux-c21a6828183cdcc08533a83530156e5758aca534.tar.gz dabmux-c21a6828183cdcc08533a83530156e5758aca534.tar.bz2 dabmux-c21a6828183cdcc08533a83530156e5758aca534.zip |
Merge branch 'next' into servicelinking
And move FIG0/6 to new files
Diffstat (limited to 'src/fig/FIG0_8.cpp')
-rw-r--r-- | src/fig/FIG0_8.cpp | 204 |
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; +} + +} |