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Diffstat (limited to 'src/FrameMultiplexer.cpp')
-rw-r--r-- | src/FrameMultiplexer.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/FrameMultiplexer.cpp b/src/FrameMultiplexer.cpp new file mode 100644 index 0000000..4eb72b2 --- /dev/null +++ b/src/FrameMultiplexer.cpp @@ -0,0 +1,90 @@ +/* + Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Her Majesty + the Queen in Right of Canada (Communications Research Center Canada) + */ +/* + This file is part of CRC-DADMOD. + + CRC-DADMOD 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. + + CRC-DADMOD 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 CRC-DADMOD. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "FrameMultiplexer.h" +#include "PcDebug.h" + +#include <stdio.h> +#include <stdexcept> +#include <complex> +#include <assert.h> +#include <string.h> + +typedef std::complex<float> complexf; + + +FrameMultiplexer::FrameMultiplexer(size_t framesize, const std::vector<SubchannelSource*>* subchannels) : + ModMux(ModFormat(framesize), ModFormat(framesize)), + d_frameSize(framesize), + mySubchannels(subchannels) +{ + PDEBUG("FrameMultiplexer::FrameMultiplexer(%zu) @ %p\n", framesize, this); + +} + + +FrameMultiplexer::~FrameMultiplexer() +{ + PDEBUG("FrameMultiplexer::~FrameMultiplexer() @ %p\n", this); + +} + + +// dataIn[0] -> PRBS +// dataIn[1+] -> subchannels +int FrameMultiplexer::process(std::vector<Buffer*> dataIn, Buffer* dataOut) +{ + assert(dataIn.size() >= 1); + assert(dataIn[0]->getLength() == 864 * 8); + dataOut->setLength(dataIn[0]->getLength()); + +#ifdef DEBUG + fprintf(stderr, "FrameMultiplexer::process(dataIn:"); + for (unsigned i = 0; i < dataIn.size(); ++i) { + fprintf(stderr, " %p", dataIn[i]); + } + fprintf(stderr, ", sizeIn:"); + for (unsigned i = 0; i < dataIn.size(); ++i) { + fprintf(stderr, " %zu", dataIn[i]->getLength()); + } + fprintf(stderr, ", dataOut: %p, sizeOut: %zu)\n", dataOut, dataOut->getLength()); +#endif + + unsigned char* out = reinterpret_cast<unsigned char*>(dataOut->getData()); + std::vector<Buffer*>::const_iterator in = dataIn.begin(); + + // Write PRBS + memcpy(out, (*in)->getData(), (*in)->getLength()); + ++in; + // Write subchannel + assert(mySubchannels->size() == dataIn.size() - 1); + std::vector<SubchannelSource*>::const_iterator subchannel = + mySubchannels->begin(); + while (in != dataIn.end()) { + assert((*subchannel)->framesizeCu() * 8 == (*in)->getLength()); + size_t offset = (*subchannel)->startAddress() * 8; + memcpy(&out[offset], (*in)->getData(), (*in)->getLength()); + ++in; + ++subchannel; + } + + return dataOut->getLength(); +} |