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/*
Copyright (C) 2014
Matthias P. Braendli, matthias.braendli@mpb.li
http://www.opendigitalradio.org
EDI output.
This defines a TAG Packet.
*/
/*
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 "config.h"
#include "edi/TagPacket.h"
#include "edi/TagItems.h"
#include <iostream>
#include <string>
#include <cassert>
namespace edi {
TagPacket::TagPacket(unsigned int alignment) : m_alignment(alignment)
{ }
std::vector<uint8_t> TagPacket::Assemble()
{
std::list<TagItem*>::iterator tag;
std::vector<uint8_t> packet;
//std::cerr << "Assemble TAGPacket" << std::endl;
for (tag = tag_items.begin(); tag != tag_items.end(); ++tag) {
std::vector<uint8_t> tag_data = (*tag)->Assemble();
packet.insert(packet.end(), tag_data.begin(), tag_data.end());
//std::cerr << " Add TAGItem of length " << tag_data.size() << std::endl;
}
if (m_alignment == 0) { /* no padding */ }
else if (m_alignment == 8) {
// Add padding inside TAG packet
while (packet.size() % 8 > 0) {
packet.push_back(0); // TS 102 821, 5.1, "padding shall be undefined"
}
}
else if (m_alignment > 8) {
TagStarDMY dmy(m_alignment - 8);
auto dmy_data = dmy.Assemble();
packet.insert(packet.end(), dmy_data.begin(), dmy_data.end());
}
else {
std::cerr << "Invalid alignment requirement " << m_alignment <<
" defined in TagPacket" << std::endl;
}
return packet;
}
}
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