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Allow for network late entry.

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This commit is contained in:
Jonathan Naylor 2016-01-21 21:08:10 +00:00
parent 2b238af651
commit a845f6b6d7
4 changed files with 168 additions and 83 deletions
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17
AMBEFEC.cpp
View file

@ -602,12 +602,17 @@ unsigned int CAMBEFEC::regenerate(unsigned int& a, unsigned int& b, unsigned int
new_b ^= p;
unsigned int errors = 0U;
unsigned int mask = 0x01;
for (unsigned int i = 0U; i < 24U; i++, mask <<= 1) {
if ((old_a & mask) != (new_a & mask))
errors++;
if ((old_b & mask) != (new_b & mask))
errors++;
unsigned int v = new_a ^ old_a;
while (v != 0U) {
v &= v - 1U;
errors++;
}
v = new_b ^ old_b;
while (v != 0U) {
v &= v - 1U;
errors++;
}
a = new_a;

6
DMRDefines.h
View file

@ -61,9 +61,9 @@ const unsigned char DMR_IDLE_DATA[] = {TAG_DATA, 0x00U,
// A silence frame with no EMB and a null Short LC
const unsigned char DMR_SILENCE_DATA[] = {TAG_DATA, 0x00U,
0x88U, 0xC8U, 0xA3U, 0x54U, 0x22U, 0x14U, 0x31U, 0x69U, 0x6AU, 0xAAU, 0xCAU,
0x81U, 0x54U, 0x20U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x01U, 0x25U, 0x13U,
0x29U, 0x48U, 0xAAU, 0xCAU, 0x81U, 0x54U, 0x21U, 0x25U, 0x31U, 0x39U, 0x6AU};
0x88U, 0xC8U, 0xA3U, 0x54U, 0x22U, 0x16U, 0x31U, 0x69U, 0x6AU, 0xAAU, 0xCAU,
0x81U, 0x54U, 0x20U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x01U, 0x27U, 0x13U,
0x29U, 0x48U, 0xAAU, 0xCAU, 0x81U, 0x54U, 0x21U, 0x27U, 0x31U, 0x39U, 0x6AU};
const unsigned char PAYLOAD_LEFT_MASK[] = {0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xF0U};
const unsigned char PAYLOAD_RIGHT_MASK[] = {0x0FU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU};

225
DMRSlot.cpp
View file

@ -80,12 +80,12 @@ void CDMRSlot::writeModem(unsigned char *data)
return;
}
if (data[0U] == TAG_LOST && m_state == RS_LATE_ENTRY) {
if (data[0U] == TAG_LOST && m_state == RS_RF_LATE_ENTRY) {
m_state = RS_LISTENING;
return;
}
if (m_state == RS_RELAYING_NETWORK_AUDIO || m_state == RS_RELAYING_NETWORK_DATA)
if (m_state == RS_RELAYING_NETWORK_AUDIO || m_state == RS_RELAYING_NETWORK_DATA || m_state == RS_NETWORK_LATE_ENTRY)
return;
bool dataSync = (data[1U] & DMR_SYNC_DATA) == DMR_SYNC_DATA;
@ -249,7 +249,7 @@ void CDMRSlot::writeModem(unsigned char *data)
writeQueue(data);
writeNetwork(data, DT_VOICE_SYNC);
} else if (m_state == RS_LISTENING) {
m_state = RS_LATE_ENTRY;
m_state = RS_RF_LATE_ENTRY;
}
} else {
CEMB emb;
@ -272,7 +272,7 @@ void CDMRSlot::writeModem(unsigned char *data)
writeQueue(data);
writeNetwork(data, DT_VOICE);
} else if (m_state == RS_LATE_ENTRY) {
} else if (m_state == RS_RF_LATE_ENTRY) {
// If we haven't received an LC yet, then be strict on the color code
unsigned char colorCode = emb.getColorCode();
if (colorCode != m_colorCode)
@ -375,7 +375,7 @@ void CDMRSlot::writeEndOfTransmission()
void CDMRSlot::writeNetwork(const CDMRData& dmrData)
{
if (m_state == RS_RELAYING_RF_AUDIO || m_state == RS_RELAYING_RF_DATA || m_state == RS_LATE_ENTRY)
if (m_state == RS_RELAYING_RF_AUDIO || m_state == RS_RELAYING_RF_DATA || m_state == RS_RF_LATE_ENTRY)
return;
m_networkWatchdog.start();
@ -519,83 +519,157 @@ void CDMRSlot::writeNetwork(const CDMRData& dmrData)
// LogMessage("DMR Slot %u, received network data header from %u to %s%u", m_slotNo, m_lc->getSrcId(), m_lc->getFLCO() == FLCO_GROUP ? "TG " : "", m_lc->getDstId());
LogMessage("DMR Slot %u, received network data header", m_slotNo);
} else if (dataType == DT_VOICE_SYNC) {
if (m_state != RS_RELAYING_NETWORK_AUDIO)
return;
if (m_state == RS_RELAYING_NETWORK_AUDIO) {
// Initialise the lost packet data
if (m_frames == 0U) {
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
m_elapsed.start();
m_lost = 0U;
} else {
insertSilence(dmrData.getSeqNo());
}
// Initialise the lost packet data
if (m_frames == 0U) {
// Convert the Audio Sync to be from the BS
CDMRSync sync;
sync.addSync(data + 2U, DST_BS_AUDIO);
unsigned char fid = m_lc->getFID();
if (fid == FID_ETSI || fid == FID_DMRA)
m_errs += m_fec.regenerateDMR(data + 2U);
m_bits += 216U;
data[0U] = TAG_DATA;
data[1U] = 0x00U;
writeQueue(data);
m_packetTimer.start();
m_frames++;
// Save details in case we need to infill data
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
m_elapsed.start();
m_lost = 0U;
} else {
insertSilence(dmrData.getSeqNo());
}
// Convert the Audio Sync to be from the BS
CDMRSync sync;
sync.addSync(data + 2U, DST_BS_AUDIO);
unsigned char fid = m_lc->getFID();
if (fid == FID_ETSI || fid == FID_DMRA)
m_errs += m_fec.regenerateDMR(data + 2U);
m_bits += 216U;
data[0U] = TAG_DATA;
data[1U] = 0x00U;
writeQueue(data);
m_packetTimer.start();
m_frames++;
// Save details in case we need to infill data
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
m_n = dmrData.getN();
#if defined(DUMP_DMR)
writeFile(data);
writeFile(data);
#endif
} else if (dataType == DT_VOICE) {
if (m_state != RS_RELAYING_NETWORK_AUDIO)
return;
// Initialise the lost packet data
if (m_frames == 0U) {
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
m_elapsed.start();
m_lost = 0U;
} else {
insertSilence(dmrData.getSeqNo());
m_state = RS_NETWORK_LATE_ENTRY;
}
unsigned char fid = m_lc->getFID();
if (fid == FID_ETSI || fid == FID_DMRA)
m_errs += m_fec.regenerateDMR(data + 2U);
m_bits += 216U;
// Change the color code in the EMB
}
else if (dataType == DT_VOICE) {
CEMB emb;
emb.putData(data + 2U);
emb.setColorCode(m_colorCode);
emb.getData(data + 2U);
data[0U] = TAG_DATA;
data[1U] = 0x00U;
if (m_state == RS_RELAYING_NETWORK_AUDIO) {
// Initialise the lost packet data
if (m_frames == 0U) {
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
m_elapsed.start();
m_lost = 0U;
} else {
insertSilence(dmrData.getSeqNo());
}
writeQueue(data);
unsigned char fid = m_lc->getFID();
if (fid == FID_ETSI || fid == FID_DMRA)
m_errs += m_fec.regenerateDMR(data + 2U);
m_bits += 216U;
m_packetTimer.start();
m_frames++;
// Change the color code in the EMB
emb.setColorCode(m_colorCode);
emb.getData(data + 2U);
// Save details in case we need to infill data
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
data[0U] = TAG_DATA;
data[1U] = 0x00U;
writeQueue(data);
m_packetTimer.start();
m_frames++;
// Save details in case we need to infill data
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
#if defined(DUMP_DMR)
writeFile(data);
writeFile(data);
#endif
} else if (m_state == RS_NETWORK_LATE_ENTRY) {
// If we haven't received an LC yet, then be strict on the color code
unsigned char colorCode = emb.getColorCode();
if (colorCode != m_colorCode)
return;
m_lc = m_embeddedLC.addData(data + 2U, emb.getLCSS());
if (m_lc != NULL) {
// Create a dummy start frame to replace the received frame
unsigned char start[DMR_FRAME_LENGTH_BYTES + 2U];
CDMRSync sync;
sync.addSync(start + 2U, DST_BS_DATA);
CFullLC fullLC;
fullLC.encode(*m_lc, start + 2U, DT_VOICE_LC_HEADER);
CSlotType slotType;
slotType.setColorCode(m_colorCode);
slotType.setDataType(DT_VOICE_LC_HEADER);
slotType.getData(start + 2U);
m_timeoutTimer.start();
// 540ms of idle to give breathing space for lost frames
for (unsigned int i = 0U; i < 9U; i++)
writeQueue(m_idle);
for (unsigned int i = 0U; i < 3U; i++)
writeQueue(start);
#if defined(DUMP_DMR)
openFile();
writeFile(start);
#endif
// Change the color code in the EMB
emb.setColorCode(m_colorCode);
emb.getData(data + 2U);
// Initialise the lost packet data
m_seqNo = dmrData.getSeqNo();
m_n = dmrData.getN();
m_elapsed.start();
m_lost = 0U;
// Send the original audio frame out
unsigned char fid = m_lc->getFID();
if (fid == FID_ETSI || fid == FID_DMRA)
m_errs = m_fec.regenerateDMR(data + 2U);
m_bits = 216U;
data[0U] = TAG_DATA;
data[1U] = 0x00U;
writeQueue(data);
m_packetTimer.start();
m_frames = 1U;
#if defined(DUMP_DMR)
writeFile(data);
#endif
m_state = RS_RELAYING_NETWORK_AUDIO;
setShortLC(m_slotNo, m_lc->getDstId(), m_lc->getFLCO());
m_display->writeDMR(m_slotNo, m_lc->getSrcId(), m_lc->getFLCO() == FLCO_GROUP, m_lc->getDstId());
LogMessage("DMR Slot %u, received network late entry from %u to %s%u", m_slotNo, m_lc->getSrcId(), m_lc->getFLCO() == FLCO_GROUP ? "TG " : "", m_lc->getDstId());
}
}
} else {
// Change the Color Code of the Slot Type
CSlotType slotType;
@ -622,7 +696,7 @@ void CDMRSlot::clock(unsigned int ms)
{
m_timeoutTimer.clock(ms);
if (m_state == RS_RELAYING_NETWORK_AUDIO || m_state == RS_RELAYING_NETWORK_DATA) {
if (m_state == RS_RELAYING_NETWORK_AUDIO || m_state == RS_RELAYING_NETWORK_DATA || m_state == RS_NETWORK_LATE_ENTRY) {
m_networkWatchdog.clock(ms);
if (m_networkWatchdog.hasExpired()) {
@ -631,14 +705,19 @@ void CDMRSlot::clock(unsigned int ms)
m_frames += 1U;
LogMessage("DMR Slot %u, network watchdog has expired, %u%% packet loss, BER: %u%%", m_slotNo, (m_lost * 100U) / m_frames, (m_errs * 100U) / m_bits);
writeTerminator(false);
} else {
LogMessage("DMR Slot %u, network watchdog has expired", m_slotNo);
}
writeEndOfTransmission();
writeEndOfTransmission();
#if defined(DUMP_DMR)
closeFile();
closeFile();
#endif
} else if (m_state == RS_RELAYING_NETWORK_DATA) {
LogMessage("DMR Slot %u, network watchdog has expired", m_slotNo);
writeEndOfTransmission();
#if defined(DUMP_DMR)
closeFile();
#endif
} else {
m_state = RS_LISTENING;
}
}
}

3
Defines.h
View file

@ -31,7 +31,8 @@ const unsigned char TAG_EOT = 0x03U;
enum RPT_STATE {
RS_LISTENING,
RS_LATE_ENTRY,
RS_RF_LATE_ENTRY,
RS_NETWORK_LATE_ENTRY,
RS_RELAYING_RF_AUDIO,
RS_RELAYING_NETWORK_AUDIO,
RS_RELAYING_RF_DATA,