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dsd_decoder.cpp
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dsd_decoder.cpp
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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2016 Edouard Griffiths, F4EXB. //
// //
// This program 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 as version 3 of the License, or //
// //
// This program 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <stdlib.h>
#include <assert.h>
#include "timeutil.h"
#include "dsd_decoder.h"
namespace DSDcc
{
// Sync wods - Symbol mapping: 01(1):+3, 00(0):+1, 10(2):-1, 11(3):-3
const unsigned char DSDDecoder::m_syncDMRDataBS[24] = {3, 1, 3, 3, 3, 3, 1, 1, 1, 3, 3, 1, 1, 3, 1, 1, 3, 1, 3, 3, 1, 1, 3, 1}; // DF F5 7D 75 DF 5D
const unsigned char DSDDecoder::m_syncDMRVoiceBS[24] = {1, 3, 1, 1, 1, 1, 3, 3, 3, 1, 1, 3, 3, 1, 3, 3, 1, 3, 1, 1, 3, 3, 1, 3}; // 75 5F D7 DF 75 F7
const unsigned char DSDDecoder::m_syncDMRDataMS[24] = {3, 1, 1, 1, 3, 1, 1, 3, 3, 3, 1, 3, 1, 3, 3, 3, 3, 1, 1, 3, 1, 1, 1, 3}; // D5 D7 F7 7F D7 57
const unsigned char DSDDecoder::m_syncDMRVoiceMS[24] = {1, 3, 3, 3, 1, 3, 3, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 3, 3, 1, 3, 3, 3, 1}; // 7F 7D 5D D5 7D FD
const unsigned char DSDDecoder::m_syncDPMRFS1[24] = {1, 1, 1, 3, 3, 3, 3, 3, 1, 1, 3, 3, 1, 3, 1, 1, 3, 1, 1, 1, 1, 3, 1, 3}; // 57 FF 5F 75 D5 77 - non packet data header
const unsigned char DSDDecoder::m_syncDPMRFS4[24] = {3, 3, 3, 1, 1, 1, 1, 1, 3, 3, 1, 1, 3, 1, 3, 3, 1, 3, 3, 3, 3, 1, 3, 1}; // FD 55 F5 DF 7F DD - packet data header
const unsigned char DSDDecoder::m_syncDPMRFS2[12] = {1, 1, 3, 3, 3, 3, 1, 3, 1, 3, 3, 1}; // 5F F7 7D - superframe sync (each 2 384 bit frames)
const unsigned char DSDDecoder::m_syncDPMRFS3[12] = {1, 3, 3, 1, 3, 1, 3, 3, 3, 3, 1, 1}; // 7D DF F5 end frame sync
const unsigned char DSDDecoder::m_syncNXDNRDCHFull[19] = {3, 1, 3, 1, 1, 3, 3, 3, 1, 3, 1, 3, 1, 3, 3, 1, 1, 3, 1};
const unsigned char DSDDecoder::m_syncNXDNRDCHFullInv[19] = {1, 3, 1, 3, 3, 1, 1, 1, 3, 1, 3, 1, 3, 1, 1, 3, 3, 1, 3};
//const unsigned char DSDDecoder::m_syncNXDNRDCHFull[20] = {1, 3, 1, 3, 1, 1, 3, 3, 3, 1, 3, 1, 3, 1, 3, 3, 1, 1, 3, 1};
//const unsigned char DSDDecoder::m_syncNXDNRDCHFullInv[20] = {3, 1, 3, 1, 3, 3, 1, 1, 1, 3, 1, 3, 1, 3, 1, 1, 3, 3, 1, 3};
const unsigned char DSDDecoder::m_syncNXDNRDCHFSW[10] = {3, 1, 3, 1, 3, 3, 1, 1, 3, 1};
const unsigned char DSDDecoder::m_syncNXDNRDCHFSWInv[10] = {1, 3, 1, 3, 1, 1, 3, 3, 1, 3};
const unsigned char DSDDecoder::m_syncDStarHeader[24] = {1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 3, 3, 1, 3, 3, 1, 1, 3, 1, 3, 1, 1, 1, 1};
const unsigned char DSDDecoder::m_syncDStarHeaderInv[24] = {3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 1, 1, 3, 1, 1, 3, 3, 1, 3, 1, 3, 3, 3, 3};
const unsigned char DSDDecoder::m_syncDStar[24] = {3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 3, 1, 3, 1, 1, 1, 3, 3, 1, 3, 1, 1, 1};
const unsigned char DSDDecoder::m_syncDStarInv[24] = {1, 3, 1, 3, 1, 3, 1, 3, 1, 3, 1, 1, 3, 1, 3, 3, 3, 1, 1, 3, 1, 3, 3, 3};
const unsigned char DSDDecoder::m_syncYSF[20] = {3, 1, 1, 1, 1, 3, 1, 1, 3, 1, 3, 1, 1, 3, 1, 3, 1, 1, 3, 1}; // D4 71 C9 63 4D => D5 75 DD 77 5D
const unsigned char DSDDecoder::m_syncP25P1[24] = {1, 1, 1, 1, 1, 3, 1, 1, 3, 3, 1, 1, 3, 3, 3, 3, 1, 3, 1, 3, 3, 3, 3, 3};
const unsigned char DSDDecoder::m_syncP25P1Inv[24] = {3, 3, 3, 3, 3, 1, 3, 3, 1, 1, 3, 3, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1};
const unsigned char DSDDecoder::m_syncX2TDMADataBS[24] = {3, 3, 1, 3, 1, 3, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 3, 3, 3, 1, 1, 3, 3};
const unsigned char DSDDecoder::m_syncX2TDMAVoiceBS[24] = {1, 1, 3, 1, 3, 1, 3, 3, 3, 3, 3, 1, 3, 1, 3, 3, 3, 1, 1, 1, 3, 3, 1, 1};
const unsigned char DSDDecoder::m_syncX2TDMADataMS[24] = {3, 1, 3, 1, 1, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3 ,3 ,3 ,1 ,3};
const unsigned char DSDDecoder::m_syncX2TDMAVoiceMS[24] = {1, 3, 1, 3, 3, 1, 1, 1, 1, 3 ,3, 3, 3, 3, 3, 3, 1, 1, 1, 1 ,1 ,1 ,3 ,1};
const unsigned char DSDDecoder::m_syncProVoice[32] = {1, 3, 1, 3, 1, 3, 3, 3, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3};
const unsigned char DSDDecoder::m_syncProVoiceInv[32] = {3, 1, 3, 1, 3, 1, 1, 1, 3, 3, 3, 1, 3, 3, 1, 3, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1, 3, 3, 1, 1};
const unsigned char DSDDecoder::m_syncProVoiceEA[32] = {3, 1, 1, 3, 1, 3, 1, 1, 3, 3, 1, 3, 3, 1, 1, 1, 1, 1, 3, 3, 1, 3, 1, 3, 1, 1, 3 ,1 ,1 ,1, 3 ,3};
const unsigned char DSDDecoder::m_syncProVoiceEAInv[32] = {1, 3, 3, 1, 3, 1, 3, 3, 1, 1, 3, 1, 1 ,3 ,3, 3, 3 ,3, 1, 1 ,3, 1, 3, 1, 3, 3, 1, 3, 3, 3, 1, 1};
DSDDecoder::DSDDecoder() :
m_fsmState(DSDLookForSync),
m_dsdSymbol(this),
m_mbelibEnable(true),
m_mbeRate(DSDMBERateNone),
m_mbeDecoder1(this),
m_mbeDecoder2(this),
m_mbeDVReady1(false),
m_dsdDMR(this),
m_dsdDstar(this),
m_dsdYSF(this),
m_dsdDPMR(this),
m_dsdNXDN(this),
m_dataRate(DSDRate4800),
m_syncType(DSDSyncNone),
m_lastSyncType(DSDSyncNone),
m_signalFormat(signalFormatNone)
{
resetFrameSync();
noCarrier();
m_squelchTimeoutCount = 0;
m_nxdnInterSyncCount = -1; // reset to quiet state
}
DSDDecoder::~DSDDecoder()
{
}
void DSDDecoder::setQuiet()
{
m_opts.errorbars = 0;
m_opts.verbose = 0;
m_dsdLogger.setVerbosity(0);
}
void DSDDecoder::setVerbosity(int verbosity)
{
m_opts.verbose = verbosity;
m_dsdLogger.setVerbosity(verbosity);
}
void DSDDecoder::showErrorBars()
{
m_opts.errorbars = 1;
}
void DSDDecoder::showSymbolTiming()
{
m_opts.symboltiming = 1;
m_opts.errorbars = 1;
}
void DSDDecoder::setP25DisplayOptions(DSDShowP25 mode, bool on)
{
switch(mode)
{
case DSDShowP25EncryptionSyncBits:
m_opts.p25enc = (on ? 1 : 0);
break;
case DSDShowP25LinkControlBits:
m_opts.p25lc = (on ? 1 : 0);
break;
case DSDShowP25StatusBitsAndLowSpeedData:
m_opts.p25status = (on ? 1 : 0);
break;
case DSDShowP25TalkGroupInfo:
m_opts.p25tg = (on ? 1 : 0);
break;
default:
break;
}
}
void DSDDecoder::muteEncryptedP25(bool on)
{
m_opts.unmute_encrypted_p25 = (on ? 0 : 1);
}
void DSDDecoder::setDecodeMode(DSDDecodeMode mode, bool on)
{
switch(mode)
{
case DSDDecodeNone:
if (on)
{
m_opts.frame_dmr = 0;
m_opts.frame_dstar = 0;
m_opts.frame_p25p1 = 0;
m_opts.frame_nxdn48 = 0;
m_opts.frame_nxdn96 = 0;
m_opts.frame_provoice = 0;
m_opts.frame_x2tdma = 0;
m_opts.frame_dpmr = 0;
m_opts.frame_ysf = 0;
}
break;
case DSDDecodeDMR:
m_opts.frame_dmr = (on ? 1 : 0);
if (on) setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of DMR/MOTOTRBO frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeDStar:
m_opts.frame_dstar = (on ? 1 : 0);
if (on) setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of D-Star frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeP25P1:
m_opts.frame_p25p1 = (on ? 1 : 0);
if (on) setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of P25p1 frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeDPMR:
m_opts.frame_dpmr = (on ? 1 : 0);
if (on) setDataRate(DSDRate2400); else setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of DPMR Tier 1 or 2 frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeNXDN48:
m_opts.frame_nxdn48 = (on ? 1 : 0);
if (on) setDataRate(DSDRate2400); else setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of NXDN48 frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeNXDN96:
m_opts.frame_nxdn96 = (on ? 1 : 0);
if (on) setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of NXDN96 frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeProVoice:
m_opts.frame_provoice = (on ? 1 : 0);
if (on) setDataRate(DSDRate9600); else setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of Pro Voice frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeX2TDMA:
m_opts.frame_x2tdma = (on ? 1 : 0);
if (on) setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of X2 TDMA frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeYSF:
m_opts.frame_ysf = (on ? 1 : 0);
if (on) setDataRate(DSDRate4800);
m_dsdLogger.log("%s the decoding of YSF frames.\n", (on ? "Enabling" : "Disabling"));
break;
case DSDDecodeAuto:
m_opts.frame_dmr = 0;
m_opts.frame_dstar = 0;
m_opts.frame_p25p1 = 0;
m_opts.frame_nxdn48 = 0;
m_opts.frame_nxdn96 = 0;
m_opts.frame_provoice = 0;
m_opts.frame_x2tdma = 0;
m_opts.frame_dpmr = 0;
m_opts.frame_ysf = 0;
switch (m_dataRate)
{
case DSDRate2400:
m_opts.frame_nxdn48 = (on ? 1 : 0);
m_opts.frame_dpmr = (on ? 1 : 0);
break;
case DSDRate4800:
m_opts.frame_dmr = (on ? 1 : 0);
m_opts.frame_dstar = (on ? 1 : 0);
m_opts.frame_x2tdma = (on ? 1 : 0);
m_opts.frame_p25p1 = (on ? 1 : 0);
m_opts.frame_nxdn96 = (on ? 1 : 0);
m_opts.frame_ysf = (on ? 1 : 0);
break;
case DSDRate9600:
m_opts.frame_provoice = (on ? 1 : 0);
break;
default:
m_opts.frame_dmr = (on ? 1 : 0);
m_opts.frame_dstar = (on ? 1 : 0);
m_opts.frame_x2tdma = (on ? 1 : 0);
m_opts.frame_p25p1 = (on ? 1 : 0);
m_opts.frame_nxdn96 = (on ? 1 : 0);
m_opts.frame_ysf = (on ? 1 : 0);
break;
}
m_dsdLogger.log("%s auto frame decoding.\n", (on ? "Enabling" : "Disabling"));
break;
default:
break;
}
resetFrameSync();
noCarrier();
m_squelchTimeoutCount = 0;
m_nxdnInterSyncCount = -1; // reset to quiet state
}
void DSDDecoder::setAudioGain(float gain)
{
m_opts.audio_gain = gain;
if (m_opts.audio_gain < 0.0f)
{
m_dsdLogger.log("Audio out gain invalid\n");
}
else if (m_opts.audio_gain == 0.0f)
{
m_dsdLogger.log("Enabling audio out auto-gain\n");
m_mbeDecoder1.setAudioGain(25);
m_mbeDecoder1.setVolume(1.0f);
m_mbeDecoder1.setAutoGain(true);
m_mbeDecoder2.setAudioGain(25);
m_mbeDecoder2.setVolume(1.0f);
m_mbeDecoder2.setAutoGain(true);
}
else
{
m_dsdLogger.log("Setting audio out gain to %f\n", m_opts.audio_gain);
m_mbeDecoder1.setAudioGain(m_opts.audio_gain);
m_mbeDecoder1.setVolume(m_opts.audio_gain);
m_mbeDecoder1.setAutoGain(false);
m_mbeDecoder2.setAudioGain(m_opts.audio_gain);
m_mbeDecoder2.setVolume(m_opts.audio_gain);
m_mbeDecoder2.setAutoGain(false);
}
}
void DSDDecoder::setUvQuality(int uvquality)
{
m_opts.uvquality = uvquality;
if (m_opts.uvquality < 1) {
m_opts.uvquality = 1;
} else if (m_opts.uvquality > 64) {
m_opts.uvquality = 64;
}
m_dsdLogger.log("Setting unvoice speech quality to %i waves per band.\n", m_opts.uvquality);
}
void DSDDecoder::setUpsampling(int upsampling)
{
if (upsampling > 7) {
upsampling = 7;
}
if (upsampling < 0) { // 0 or 1 means 1
upsampling = 0;
}
m_mbeDecoder1.setUpsamplingFactor(upsampling);
m_mbeDecoder2.setUpsamplingFactor(upsampling);
m_dsdLogger.log("Setting upsampling to x%d\n", upsampling);
}
void DSDDecoder::setStereo(bool on)
{
m_mbeDecoder1.setStereo(on);
m_mbeDecoder2.setStereo(on);
}
void DSDDecoder::setInvertedXTDMA(bool on)
{
m_opts.inverted_x2tdma = (on ? 1 : 0);
m_dsdLogger.log("Expecting %sinverted X2-TDMA signals.\n", (m_opts.inverted_x2tdma == 0 ? "non-" : ""));
}
void DSDDecoder::enableCosineFiltering(bool on)
{
m_opts.use_cosine_filter = (on ? 1 : 0);
m_dsdLogger.log("%s cosine filter.\n", (on ? "Enabling" : "Disabling"));
}
void DSDDecoder::enableAudioOut(bool on)
{
m_opts.audio_out = (on ? 1 : 0);
m_dsdLogger.log("%s audio output to soundcard.\n", (on ? "Enabling" : "Disabling"));
}
void DSDDecoder::enableScanResumeAfterTDULCFrames(int nbFrames)
{
m_opts.resume = nbFrames;
m_dsdLogger.log("Enabling scan resume after %i TDULC frames\n", m_opts.resume);
}
void DSDDecoder::setDataRate(DSDRate dataRate)
{
m_dataRate = dataRate;
switch(dataRate)
{
case DSDRate2400:
m_dsdLogger.log("Set data rate to 2400 bauds. 20 samples per symbol\n");
m_dsdSymbol.setSamplesPerSymbol(20);
break;
case DSDRate4800:
m_dsdLogger.log("Set data rate to 4800 bauds. 10 samples per symbol\n");
m_dsdSymbol.setSamplesPerSymbol(10);
break;
case DSDRate9600:
m_dsdLogger.log("Set data rate to 9600 bauds. 5 samples per symbol\n");
m_dsdSymbol.setSamplesPerSymbol(5);
break;
default:
m_dsdLogger.log("Set default data rate to 4800 bauds. 10 samples per symbol\n");
m_dsdSymbol.setSamplesPerSymbol(10);
break;
}
}
void DSDDecoder::run(short sample)
{
// mode time out if squelch has been closed for a number of samples
if (m_fsmState != DSDLookForSync)
{
if (sample == 0)
{
if (m_squelchTimeoutCount < DSD_SQUELCH_TIMEOUT_SAMPLES)
{
m_squelchTimeoutCount++;
}
else
{
m_dsdLogger.log("DSDDecoder::run: squelch time out go back to sync search\n");
resetFrameSync();
m_squelchTimeoutCount = 0;
}
}
else
{
m_squelchTimeoutCount = 0;
}
}
if (m_dsdSymbol.pushSample(sample)) // a symbol is retrieved
{
switch (m_fsmState)
{
case DSDLookForSync:
m_sync = getFrameSync(); // -> -2: still looking, -1 not found, 0 and above: sync found
if (m_sync == -2) // -2 means no sync has been found at all
{
break; // still searching -> no change in FSM state
}
else if (m_sync == -1) // -1 means sync has been found but is invalid
{
m_dsdLogger.log("DSDDecoder::run: invalid sync found: %d symbol %d (%d)\n", m_sync, m_state.symbolcnt, m_dsdSymbol.getSymbol());
resetFrameSync(); // go back searching
}
else // good sync found
{
m_dsdLogger.log("DSDDecoder::run: good sync found: %d symbol %d (%d)\n", m_sync, m_state.symbolcnt, m_dsdSymbol.getSymbol());
m_fsmState = DSDSyncFound; // go to processing state next time
}
break; // next
case DSDSyncFound:
m_syncType = (DSDSyncType) m_sync;
m_dsdLogger.log("DSDDecoder::run: before processFrameInit: symbol %d (%d)\n", m_state.symbolcnt, m_dsdSymbol.getSymbol());
processFrameInit(); // initiate the process of the frame which sync has been found. This will change FSM state
break;
case DSDprocessDMRvoice:
m_dsdDMR.processVoice();
break;
case DSDprocessDMRvoiceMS:
m_dsdDMR.processVoiceMS();
break;
case DSDprocessDMRdata:
m_dsdDMR.processData();
break;
case DSDprocessDMRdataMS:
m_dsdDMR.processDataMS();
break;
case DSDprocessDMRsyncOrSkip:
m_dsdDMR.processSyncOrSkip();
break;
case DSDprocessDMRSkipMS:
m_dsdDMR.processSkipMS();
break;
case DSDprocessDSTAR:
m_dsdDstar.process();
break;
case DSDprocessDSTAR_HD:
m_dsdDstar.processHD();
break;
case DSDprocessYSF:
m_dsdYSF.process();
break;
case DSDprocessDPMR:
m_dsdDPMR.process();
break;
case DSDprocessNXDN:
m_dsdNXDN.process();
break;
default:
break;
}
}
}
void DSDDecoder::processFrameInit()
{
if ((m_syncType == DSDSyncDMRDataP)
|| (m_syncType == DSDSyncDMRVoiceP)) // DMR
{
m_state.nac = 0;
m_state.lastsrc = 0;
m_state.lasttg = 0;
if (m_opts.errorbars == 1)
{
if (m_opts.verbose > 0)
{
int level = m_dsdSymbol.getLevel();
m_dsdLogger.log("inlvl: %2i%% ", level);
}
}
if (m_syncType == DSDSyncDMRVoiceP)
{
sprintf(m_state.fsubtype, " VOICE ");
m_dsdDMR.initVoice(); // initializations not consuming a live symbol
m_dsdDMR.processVoice(); // process current symbol first
m_fsmState = DSDprocessDMRvoice;
}
else
{
m_dsdDMR.initData(); // initializations not consuming a live symbol
m_dsdDMR.processData(); // process current symbol first
m_fsmState = DSDprocessDMRdata;
}
}
else if ((m_syncType == DSDSyncDMRDataMS) || (m_syncType == DSDSyncDMRVoiceMS))
{
m_state.nac = 0;
m_state.lastsrc = 0;
m_state.lasttg = 0;
if (m_opts.errorbars == 1)
{
if (m_opts.verbose > 0)
{
int level = m_dsdSymbol.getLevel();
m_dsdLogger.log("inlvl: %2i%% ", level);
}
}
if (m_syncType == DSDSyncDMRVoiceMS)
{
sprintf(m_state.fsubtype, " VOICE ");
m_dsdDMR.initVoiceMS(); // initializations not consuming a live symbol
m_dsdDMR.processVoiceMS(); // process current symbol first
m_fsmState = DSDprocessDMRvoiceMS;
}
else
{
m_dsdDMR.initDataMS(); // initializations not consuming a live symbol
m_dsdDMR.processDataMS(); // process current symbol first
m_fsmState = DSDprocessDMRdataMS;
}
}
else if ((m_syncType == DSDSyncDStarP) || (m_syncType == DSDSyncDStarN)) // D-Star voice
{
m_state.nac = 0;
m_state.lastsrc = 0;
m_state.lasttg = 0;
if (m_opts.errorbars == 1)
{
if (m_opts.verbose > 0)
{
int level = m_dsdSymbol.getLevel();
printf("inlvl: %2i%% ", level);
}
}
m_state.nac = 0;
sprintf(m_state.fsubtype, " VOICE ");
m_dsdDstar.init();
m_dsdDstar.process(); // process current symbol first
m_fsmState = DSDprocessDSTAR;
}
else if ((m_syncType == DSDSyncDStarHeaderP) || (m_syncType == DSDSyncDStarHeaderN)) // D-Star header
{
m_state.nac = 0;
m_state.lastsrc = 0;
m_state.lasttg = 0;
if (m_opts.errorbars == 1)
{
if (m_opts.verbose > 0)
{
int level = m_dsdSymbol.getLevel();
m_dsdLogger.log("inlvl: %2i%% ", level);
}
}
m_state.nac = 0;
sprintf(m_state.fsubtype, " DATA ");
m_dsdDstar.init(true);
m_dsdDstar.processHD(); // process current symbol first
m_fsmState = DSDprocessDSTAR_HD;
}
else if ((m_syncType == DSDSyncNXDNP) || (m_syncType == DSDSyncNXDNN)) // NXDN full sync with preamble
{
m_state.nac = 0;
m_state.lastsrc = 0;
m_state.lasttg = 0;
if (m_opts.errorbars == 1)
{
if (m_opts.verbose > 0)
{
int level = m_dsdSymbol.getLevel();
printf("inlvl: %2i%% ", level);
}
}
m_state.nac = 0;
sprintf(m_state.fsubtype, " RDCH ");
m_dsdNXDN.init();
m_dsdNXDN.process(); // process current symbol first
m_fsmState = DSDprocessNXDN;
}
else if (m_syncType == DSDSyncDPMR) // dPMR classic (not packet)
{
m_state.nac = 0;
m_state.lastsrc = 0;
m_state.lasttg = 0;
if (m_opts.errorbars == 1)
{
if (m_opts.verbose > 0)
{
int level = m_dsdSymbol.getLevel();
m_dsdLogger.log("inlvl: %2i%% ", level);
}
}
m_state.nac = 0;
sprintf(m_state.fsubtype, " ANY ");
m_dsdDPMR.init();
m_dsdDPMR.process();
m_fsmState = DSDprocessDPMR;
}
else if (m_syncType == DSDSyncYSF) // YSF
{
m_state.nac = 0;
m_state.lastsrc = 0;
m_state.lasttg = 0;
if (m_opts.errorbars == 1)
{
if (m_opts.verbose > 0)
{
int level = m_dsdSymbol.getLevel();
m_dsdLogger.log("inlvl: %2i%% ", level);
}
}
m_state.nac = 0;
sprintf(m_state.fsubtype, " ANY ");
m_dsdYSF.init();
m_dsdYSF.process();
m_fsmState = DSDprocessYSF;
}
else
{
noCarrier();
m_fsmState = DSDLookForSync;
}
}
int DSDDecoder::getFrameSync()
{
/* detects frame sync and returns frame type
* -2 = in progress
* -1 = no sync
* integer values mapping DSDSyncType enum:
* 0 = +P25p1
* 1 = -P25p1
* 2 = +X2-TDMA (non inverted signal data frame)
* 3 = +X2-TDMA (inverted signal voice frame)
* 4 = -X2-TDMA (non inverted signal voice frame)
* 5 = -X2-TDMA (inverted signal data frame)
* 6 = +D-STAR
* 7 = -D-STAR
* 8 = +NXDN (non inverted FCH)
* 9 = -NXDN (inverted FCH)
* 10 = +DMR (non inverted signal data frame)
* 11 = +DMR (non inverted signal data frame for mobile station)
* 12 = +DMR (non inverted signal voice frame)
* 13 = +DMR (non inverted signal voice frame for mobile station)
* 14 = +ProVoice
* 15 = -ProVoice
* 16 = +NXDN (non inverted data frame - not used)
* 17 = -NXDN (inverted data frame - not used)
* 18 = +D-STAR_HD
* 19 = -D-STAR_HD
* 20 = +dPMR Tier 1 or 2 FS1 (just sync detection - not implemented yet)
* 21 = +dPMR Tier 1 or 2 FS4 (just sync detection - not implemented yet)
* 22 = +dPMR Tier 1 or 2 FS2 (handled by specialized class - not used)
* 23 = +dPMR Tier 1 or 2 FS3 (handled by specialized class - not used)
* 24 = +YSF (just sync detection - not implemented yet)
*/
if (m_t < 18)
{
m_t++;
}
else // Sync identification starts here
{
m_dmrBurstType = DSDDMR::DSDDMRBurstNone;
if (m_opts.frame_p25p1 == 1)
{
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncP25P1, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
sprintf(m_state.ftype, "+P25 Phase 1 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +P25p1 ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncP25p1P;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncP25p1P;
}
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncP25P1Inv, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4, true);
sprintf(m_state.ftype, "-P25 Phase 1 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" -P25p1 ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncP25p1N;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncP25p1N;
}
}
if (m_opts.frame_x2tdma == 1)
{
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncX2TDMADataBS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDBaseStation;
sprintf(m_state.ftype, "+X2-TDMAd ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +X2-TDMA ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncX2TDMADataP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncX2TDMADataP; // done
}
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncX2TDMADataMS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDMobileStation;
sprintf(m_state.ftype, "+X2-TDMAd ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +X2-TDMA ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncX2TDMADataP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncX2TDMADataP; // done
}
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncX2TDMAVoiceBS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDBaseStation;
sprintf(m_state.ftype, "+X2-TDMAv ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +X2-TDMA ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncX2TDMAVoiceP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncX2TDMAVoiceP; // done
}
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncX2TDMAVoiceMS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDMobileStation;
sprintf(m_state.ftype, "+X2-TDMAv ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +X2-TDMA ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncX2TDMAVoiceP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncX2TDMAVoiceP; // done
}
}
if (m_opts.frame_ysf == 1)
{
if (memcmp(m_dsdSymbol.getSyncDibitBack(20), m_syncYSF, 20) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
sprintf(m_state.ftype, "+YSF ");
if (m_opts.errorbars == 1)
{
printFrameSync("+YSF ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncYSF;
m_mbeRate = DSDMBERateNone; // choice is done inside the YSF decoder between the 3 possible modes
return (int) DSDSyncYSF;
}
}
if (m_opts.frame_dmr == 1)
{
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncDMRDataBS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDBaseStation;
m_dmrBurstType = DSDDMR::DSDDMRBaseStation;
// data frame
sprintf(m_state.ftype, "+DMRd ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +DMRd ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncDMRDataP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncDMRDataP; // done
}
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncDMRDataMS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDMobileStation;
m_dmrBurstType = DSDDMR::DSDDMRMobileStation;
// data frame
sprintf(m_state.ftype, "+DMRd ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +DMRd ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncDMRDataMS;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncDMRDataMS; // done
}
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncDMRVoiceBS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDBaseStation;
m_dmrBurstType = DSDDMR::DSDDMRBaseStation;
// voice frame
sprintf(m_state.ftype, "+DMRv ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +DMRv ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncDMRVoiceP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncDMRVoiceP; // done
}
if (memcmp(m_dsdSymbol.getSyncDibitBack(24), m_syncDMRVoiceMS, 24) == 0)
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
m_stationType = DSDMobileStation;
m_dmrBurstType = DSDDMR::DSDDMRMobileStation;
// voice frame
sprintf(m_state.ftype, "+DMRv ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +DMRv ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncDMRVoiceMS;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncDMRVoiceMS; // done
}
}
if (m_opts.frame_provoice == 1)
{
if ((memcmp(m_dsdSymbol.getSyncDibitBack(32), m_syncProVoice, 32) == 0)
|| (memcmp(m_dsdSymbol.getSyncDibitBack(32), m_syncProVoiceEA, 32) == 0))
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
sprintf(m_state.ftype, "+ProVoice ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +ProVoice ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncProVoiceP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncProVoiceP; // done
}
else if ((memcmp(m_dsdSymbol.getSyncDibitBack(32), m_syncProVoiceInv, 32) == 0)
|| (memcmp(m_dsdSymbol.getSyncDibitBack(32), m_syncProVoiceEAInv, 32) == 0))
{
m_state.carrier = 1;
m_state.offset = m_synctest_pos;
m_dsdSymbol.setFSK(4, true);
sprintf(m_state.ftype, "-ProVoice ");
if (m_opts.errorbars == 1)
{
printFrameSync(" -ProVoice ", m_synctest_pos + 1);
}
m_lastSyncType = DSDSyncProVoiceN;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncProVoiceN; // donesynctype
}
}
if ((m_opts.frame_nxdn96 == 1) || (m_opts.frame_nxdn48 == 1))
{
if (memcmp(m_dsdSymbol.getSyncDibitBack(19), m_syncNXDNRDCHFull, 19) == 0) // long sync (with preamble)
{
m_nxdnInterSyncCount = 0;
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
if (m_dataRate == DSDRate2400)
{
sprintf(m_state.ftype, "+NXDN48 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +NXDN48 ", m_synctest_pos + 1);
}
}
else
{
sprintf(m_state.ftype, "+NXDN96 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +NXDN96 ", m_synctest_pos + 1);
}
}
m_lastSyncType = DSDSyncNXDNP;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncNXDNP; // done
}
else if (memcmp(m_dsdSymbol.getSyncDibitBack(19), m_syncNXDNRDCHFullInv, 19) == 0) // long sync (with preamble) inverted
{
m_nxdnInterSyncCount = 0;
m_state.carrier = 1;
m_dsdSymbol.setFSK(4, true);
if (m_dataRate == DSDRate2400)
{
sprintf(m_state.ftype, "-NXDN48 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" -NXDN48 ", m_synctest_pos + 1);
}
}
else
{
sprintf(m_state.ftype, "-NXDN96 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" -NXDN96 ", m_synctest_pos + 1);
}
}
m_lastSyncType = DSDSyncNXDNN;
m_mbeRate = DSDMBERate3600x2450;
return (int) DSDSyncNXDNN; // done
}
else if (memcmp(m_dsdSymbol.getSyncDibitBack(10), m_syncNXDNRDCHFSW, 10) == 0) // short sync
{
if ((m_nxdnInterSyncCount > 0) && (m_nxdnInterSyncCount % 192 == 0))
{
m_state.carrier = 1;
m_dsdSymbol.setFSK(4);
if (m_dataRate == DSDRate2400)
{
sprintf(m_state.ftype, "+NXDN48 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +NXDN48 ", m_synctest_pos + 1);
}
}
else
{
sprintf(m_state.ftype, "+NXDN96 ");
if (m_opts.errorbars == 1)
{
printFrameSync(" +NXDN96 ", m_synctest_pos + 1);