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/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Her Majesty
the Queen in Right of Canada (Communications Research Center Canada)
Copyright (C) 2018
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod 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-DabMod 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-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#include "BlockPartitioner.h"
#include "PcDebug.h"
#include "Log.h"
#include <stdio.h>
#include <stdexcept>
#include <string.h>
#include <stdint.h>
#include <assert.h>
BlockPartitioner::BlockPartitioner(unsigned mode, unsigned phase) :
ModMux(),
ModMetadata(),
d_mode(mode)
{
PDEBUG("BlockPartitioner::BlockPartitioner(%i)\n", mode);
switch (mode) {
case 1:
d_ficSize = 2304 / 8;
d_cifCount = 4;
d_outputFramesize = 3072 / 8;
d_outputFramecount = 72;
break;
case 2:
d_ficSize = 2304 / 8;
d_cifCount = 1;
d_outputFramesize = 768 / 8;
d_outputFramecount = 72;
break;
case 3:
d_ficSize = 3072 / 8;
d_cifCount = 1;
d_outputFramesize = 384 / 8;
d_outputFramecount = 144;
break;
case 4:
d_ficSize = 2304 / 8;
d_cifCount = 2;
d_outputFramesize = 1536 / 8;
d_outputFramecount = 72;
break;
default:
throw std::runtime_error(
"BlockPartitioner::BlockPartitioner invalid mode");
break;
}
d_cifNb = 0;
// For Synchronisation purpose, count nb of CIF to drop
d_cifPhase = phase % d_cifCount;
d_metaPhase = phase % d_cifCount;
d_cifSize = 864 * 8;
}
// dataIn[0] -> FIC
// dataIn[1] -> CIF
int BlockPartitioner::process(std::vector<Buffer*> dataIn, Buffer* dataOut)
{
assert(dataIn.size() == 2);
dataOut->setLength(d_cifCount * (d_ficSize + d_cifSize));
#ifdef DEBUG
fprintf(stderr, "BlockPartitioner::process(dataIn:");
for (size_t i = 0; i < dataIn.size(); ++i) {
fprintf(stderr, " %p", dataIn[i]);
}
fprintf(stderr, ", sizeIn:");
for (size_t i = 0; i < dataIn.size(); ++i) {
fprintf(stderr, " %zu", dataIn[i]->getLength());
}
fprintf(stderr, ", dataOut: %p, sizeOut: %zu)\n", dataOut, dataOut->getLength());
#endif
if (dataIn[0]->getLength() != d_ficSize) {
fprintf(stderr, "FIC is length %zu, should be %zu\n",
dataIn[0]->getLength(), d_ficSize);
throw std::runtime_error(
"BlockPartitioner::process input 0 size not valid!");
}
if (dataIn[1]->getLength() != d_cifSize) {
throw std::runtime_error(
"BlockPartitioner::process input 1 size not valid!");
}
// Synchronize CIF phase
if (d_cifPhase != 0) {
if (++d_cifPhase == d_cifCount) {
d_cifPhase = 0;
}
// Drop CIF
return 0;
}
uint8_t* fic = reinterpret_cast<uint8_t*>(dataIn[0]->getData());
uint8_t* cif = reinterpret_cast<uint8_t*>(dataIn[1]->getData());
uint8_t* out = reinterpret_cast<uint8_t*>(dataOut->getData());
// Copy FIC data
PDEBUG("Writing FIC %zu bytes to %zu\n", d_ficSize, d_cifNb * d_ficSize);
memcpy(out + (d_cifNb * d_ficSize), fic, d_ficSize);
// Copy CIF data
PDEBUG("Writing CIF %u bytes to %zu\n", 864 * 8,
(d_cifCount * d_ficSize) + (d_cifNb * 864 * 8));
memcpy(out + (d_cifCount * d_ficSize) + (d_cifNb * 864 * 8), cif, 864 * 8);
if (++d_cifNb == d_cifCount) {
d_cifNb = 0;
}
return d_cifNb == 0;
}
meta_vec_t BlockPartitioner::process_metadata(const meta_vec_t& metadataIn)
{
// Synchronize CIF phase
if (d_metaPhase != 0) {
if (++d_metaPhase == d_cifCount) {
d_metaPhase = 0;
}
// Drop this metadata
return {};
}
if (d_cifNb == 1) {
d_meta.clear();
}
std::copy(metadataIn.begin(), metadataIn.end(), std::back_inserter(d_meta));
if (d_cifNb == 0) {
return d_meta;
}
else {
return {};
}
}
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