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-rw-r--r--src/DabModulator.cpp153
1 files changed, 79 insertions, 74 deletions
diff --git a/src/DabModulator.cpp b/src/DabModulator.cpp
index 2664a08..35ef7cb 100644
--- a/src/DabModulator.cpp
+++ b/src/DabModulator.cpp
@@ -3,8 +3,10 @@
Her Majesty the Queen in Right of Canada (Communications Research
Center Canada)
- Includes modifications for which no copyright is claimed
- 2012, Matthias P. Braendli, matthias.braendli@mpb.li
+ Copyright (C) 2015
+ Matthias P. Braendli, matthias.braendli@mpb.li
+
+ http://opendigitalradio.org
*/
/*
This file is part of ODR-DabMod.
@@ -50,25 +52,24 @@
#include "RemoteControl.h"
#include "Log.h"
+using namespace boost;
DabModulator::DabModulator(
- struct modulator_offset_config& modconf,
+ double tist_offset_s, unsigned tist_delay_stages,
RemoteControllers* rcs,
- Logger& logger,
unsigned outputRate, unsigned clockRate,
unsigned dabMode, GainMode gainMode,
float digGain, float normalise,
std::string filterTapsFilename
) :
ModCodec(ModFormat(1), ModFormat(0)),
- myLogger(logger),
myOutputRate(outputRate),
myClockRate(clockRate),
myDabMode(dabMode),
myGainMode(gainMode),
myDigGain(digGain),
myNormalise(normalise),
- myEtiReader(EtiReader(modconf, myLogger)),
+ myEtiReader(EtiReader(tist_offset_s, tist_delay_stages, rcs)),
myFlowgraph(NULL),
myFilterTapsFilename(filterTapsFilename),
myRCs(rcs)
@@ -155,62 +156,65 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
////////////////////////////////////////////////////////////////
// CIF data initialisation
////////////////////////////////////////////////////////////////
- FrameMultiplexer* cifMux = NULL;
- PrbsGenerator* cifPrbs = NULL;
- BlockPartitioner* cifPart = NULL;
- QpskSymbolMapper* cifMap = NULL;
- FrequencyInterleaver* cifFreq = NULL;
- PhaseReference* cifRef = NULL;
- DifferentialModulator* cifDiff = NULL;
- NullSymbol* cifNull = NULL;
- SignalMultiplexer* cifSig = NULL;
- CicEqualizer* cifCicEq = NULL;
- OfdmGenerator* cifOfdm = NULL;
- GainControl* cifGain = NULL;
- GuardIntervalInserter* cifGuard = NULL;
- FIRFilter* cifFilter = NULL;
- Resampler* cifRes = NULL;
-
- cifPrbs = new PrbsGenerator(864 * 8, 0x110);
- cifMux = new FrameMultiplexer(myFicSizeOut + 864 * 8,
- &myEtiReader.getSubchannels());
- cifPart = new BlockPartitioner(mode, myEtiReader.getFp());
- cifMap = new QpskSymbolMapper(myNbCarriers);
- cifRef = new PhaseReference(mode);
- cifFreq = new FrequencyInterleaver(mode);
- cifDiff = new DifferentialModulator(myNbCarriers);
- cifNull = new NullSymbol(myNbCarriers);
- cifSig = new SignalMultiplexer(
- (1 + myNbSymbols) * myNbCarriers * sizeof(complexf));
-
+ shared_ptr<PrbsGenerator> cifPrbs(new PrbsGenerator(864 * 8, 0x110));
+ shared_ptr<FrameMultiplexer> cifMux(
+ new FrameMultiplexer(myFicSizeOut + 864 * 8,
+ &myEtiReader.getSubchannels()));
+
+ shared_ptr<BlockPartitioner> cifPart(
+ new BlockPartitioner(mode, myEtiReader.getFp()));
+
+ shared_ptr<QpskSymbolMapper> cifMap(new QpskSymbolMapper(myNbCarriers));
+ shared_ptr<PhaseReference> cifRef(new PhaseReference(mode));
+ shared_ptr<FrequencyInterleaver> cifFreq(new FrequencyInterleaver(mode));
+ shared_ptr<DifferentialModulator> cifDiff(
+ new DifferentialModulator(myNbCarriers));
+
+ shared_ptr<NullSymbol> cifNull(new NullSymbol(myNbCarriers));
+ shared_ptr<SignalMultiplexer> cifSig(new SignalMultiplexer(
+ (1 + myNbSymbols) * myNbCarriers * sizeof(complexf)));
+
+ // TODO this needs a review
+ bool useCicEq = false;
+ unsigned cic_ratio = 1;
if (myClockRate) {
- unsigned ratio = myClockRate / myOutputRate;
- ratio /= 4; // FPGA DUC
+ cic_ratio = myClockRate / myOutputRate;
+ cic_ratio /= 4; // FPGA DUC
if (myClockRate == 400000000) { // USRP2
- if (ratio & 1) { // odd
- cifCicEq = new CicEqualizer(myNbCarriers,
- (float)mySpacing * (float)myOutputRate / 2048000.0f,
- ratio);
+ if (cic_ratio & 1) { // odd
+ useCicEq = true;
} // even, no filter
- } else {
- cifCicEq = new CicEqualizer(myNbCarriers,
- (float)mySpacing * (float)myOutputRate / 2048000.0f,
- ratio);
+ }
+ else {
+ useCicEq = true;
}
}
- cifOfdm = new OfdmGenerator((1 + myNbSymbols), myNbCarriers, mySpacing);
- cifGain = new GainControl(mySpacing, myGainMode, myDigGain, myNormalise);
+ shared_ptr<CicEqualizer> cifCicEq(new CicEqualizer(myNbCarriers,
+ (float)mySpacing * (float)myOutputRate / 2048000.0f,
+ cic_ratio));
+
+
+ shared_ptr<OfdmGenerator> cifOfdm(
+ new OfdmGenerator((1 + myNbSymbols), myNbCarriers, mySpacing));
+
+ shared_ptr<GainControl> cifGain(
+ new GainControl(mySpacing, myGainMode, myDigGain, myNormalise));
+
cifGain->enrol_at(*myRCs);
- cifGuard = new GuardIntervalInserter(myNbSymbols, mySpacing,
- myNullSize, mySymSize);
+ shared_ptr<GuardIntervalInserter> cifGuard(
+ new GuardIntervalInserter(myNbSymbols, mySpacing,
+ myNullSize, mySymSize));
+
+ FIRFilter* cifFilter = NULL;
if (myFilterTapsFilename != "") {
cifFilter = new FIRFilter(myFilterTapsFilename);
cifFilter->enrol_at(*myRCs);
}
- myOutput = new OutputMemory();
+ shared_ptr<OutputMemory> myOutput(new OutputMemory(dataOut));
+ Resampler* cifRes = NULL;
if (myOutputRate != 2048000) {
cifRes = new Resampler(2048000, myOutputRate, mySpacing);
} else {
@@ -222,10 +226,7 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
////////////////////////////////////////////////////////////////
// Processing FIC
////////////////////////////////////////////////////////////////
- FicSource* fic = myEtiReader.getFic();
- PrbsGenerator* ficPrbs = NULL;
- ConvEncoder* ficConv = NULL;
- PuncturingEncoder* ficPunc = NULL;
+ shared_ptr<FicSource> fic(myEtiReader.getFic());
////////////////////////////////////////////////////////////////
// Data initialisation
////////////////////////////////////////////////////////////////
@@ -241,13 +242,13 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
PDEBUG(" Framesize: %zu\n", fic->getFramesize());
// Configuring prbs generator
- ficPrbs = new PrbsGenerator(myFicSizeIn, 0x110);
+ shared_ptr<PrbsGenerator> ficPrbs(new PrbsGenerator(myFicSizeIn, 0x110));
// Configuring convolutionnal encoder
- ficConv = new ConvEncoder(myFicSizeIn);
+ shared_ptr<ConvEncoder> ficConv(new ConvEncoder(myFicSizeIn));
// Configuring puncturing encoder
- ficPunc = new PuncturingEncoder();
+ shared_ptr<PuncturingEncoder> ficPunc(new PuncturingEncoder());
std::vector<PuncturingRule*> rules = fic->get_rules();
std::vector<PuncturingRule*>::const_iterator rule;
for (rule = rules.begin(); rule != rules.end(); ++rule) {
@@ -267,16 +268,12 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
////////////////////////////////////////////////////////////////
// Configuring subchannels
////////////////////////////////////////////////////////////////
- std::vector<SubchannelSource*> subchannels =
+ std::vector<shared_ptr<SubchannelSource> > subchannels =
myEtiReader.getSubchannels();
- std::vector<SubchannelSource*>::const_iterator subchannel;
+ std::vector<shared_ptr<SubchannelSource> >::const_iterator subchannel;
for (subchannel = subchannels.begin();
subchannel != subchannels.end();
++subchannel) {
- PrbsGenerator* subchPrbs = NULL;
- ConvEncoder* subchConv = NULL;
- PuncturingEncoder* subchPunc = NULL;
- TimeInterleaver* subchInterleaver = NULL;
////////////////////////////////////////////////////////////
// Data initialisation
@@ -307,13 +304,17 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
(*subchannel)->protectionOption());
// Configuring prbs genrerator
- subchPrbs = new PrbsGenerator(subchSizeIn, 0x110);
+ shared_ptr<PrbsGenerator> subchPrbs(
+ new PrbsGenerator(subchSizeIn, 0x110));
// Configuring convolutionnal encoder
- subchConv = new ConvEncoder(subchSizeIn);
+ shared_ptr<ConvEncoder> subchConv(
+ new ConvEncoder(subchSizeIn));
// Configuring puncturing encoder
- subchPunc = new PuncturingEncoder();
+ shared_ptr<PuncturingEncoder> subchPunc(
+ new PuncturingEncoder());
+
std::vector<PuncturingRule*> rules = (*subchannel)->get_rules();
std::vector<PuncturingRule*>::const_iterator rule;
for (rule = rules.begin(); rule != rules.end(); ++rule) {
@@ -326,7 +327,8 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
subchPunc->append_tail_rule(PuncturingRule(3, 0xcccccc));
// Configuring time interleaver
- subchInterleaver = new TimeInterleaver(subchSizeOut);
+ shared_ptr<TimeInterleaver> subchInterleaver(
+ new TimeInterleaver(subchSizeOut));
myFlowgraph->connect(*subchannel, subchPrbs);
myFlowgraph->connect(subchPrbs, subchConv);
@@ -342,7 +344,7 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
myFlowgraph->connect(cifFreq, cifDiff);
myFlowgraph->connect(cifNull, cifSig);
myFlowgraph->connect(cifDiff, cifSig);
- if (myClockRate) {
+ if (useCicEq) {
myFlowgraph->connect(cifSig, cifCicEq);
myFlowgraph->connect(cifCicEq, cifOfdm);
} else {
@@ -352,18 +354,21 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
myFlowgraph->connect(cifGain, cifGuard);
if (myFilterTapsFilename != "") {
- myFlowgraph->connect(cifGuard, cifFilter);
+ shared_ptr<FIRFilter> cifFilterptr(cifFilter);
+ myFlowgraph->connect(cifGuard, cifFilterptr);
if (cifRes != NULL) {
- myFlowgraph->connect(cifFilter, cifRes);
- myFlowgraph->connect(cifRes, myOutput);
+ shared_ptr<Resampler> res(cifRes);
+ myFlowgraph->connect(cifFilterptr, res);
+ myFlowgraph->connect(res, myOutput);
} else {
- myFlowgraph->connect(cifFilter, myOutput);
+ myFlowgraph->connect(cifFilterptr, myOutput);
}
}
else { //no filtering
if (cifRes != NULL) {
- myFlowgraph->connect(cifGuard, cifRes);
- myFlowgraph->connect(cifRes, myOutput);
+ shared_ptr<Resampler> res(cifRes);
+ myFlowgraph->connect(cifGuard, res);
+ myFlowgraph->connect(res, myOutput);
} else {
myFlowgraph->connect(cifGuard, myOutput);
}
@@ -374,6 +379,6 @@ int DabModulator::process(Buffer* const dataIn, Buffer* dataOut)
////////////////////////////////////////////////////////////////////
// Proccessing data
////////////////////////////////////////////////////////////////////
- myOutput->setOutput(dataOut);
return myFlowgraph->run();
}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-14 19:18:37 +0000