MMDVM/MMDVMHost
1
0
Fork 0
mirror of https://github.com/g4klx/MMDVMHost synced 2025-12-21 23:45:49 +08:00
Code Issues Packages Projects Releases Wiki Activity

Simplify the D-Star sequence number processing.

Browse Source
This commit is contained in:
Jonathan Naylor
2019-01-27 20:15:14 +00:00
parent ff0082b18b
commit 99d4a9bc51
1 changed files with 6 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
DStarControl.cpp
View File

@@ -708,6 +708,8 @@ void CDStarControl::writeNetwork()
writeEndNet();
}
} else if (type == TAG_DATA) {
unsigned char m_netN = data[1U];
// Check for the fast data signature
if (m_netState == RS_NET_AUDIO && (m_netN % 2U) == 1U) {
unsigned char slowDataType = data[DSTAR_VOICE_FRAME_LENGTH_BYTES + 2U] & DSTAR_SLOW_DATA_TYPE_MASK;
@@ -720,17 +722,13 @@ void CDStarControl::writeNetwork()
}
if (m_netState == RS_NET_DATA) {
unsigned char n = data[1U];
data[1U] = TAG_DATA;
m_netBits += 72U;
m_netErrs = 0U;
m_netN = n;
// Regenerate the sync
if (n == 0U)
if (m_netN == 0U)
CSync::addDStarSync(data + 2U);
m_packetTimer.start();
@@ -740,12 +738,9 @@ void CDStarControl::writeNetwork()
writeFile(data + 1U, length - 1U);
#endif
writeQueueDataNet(data + 1U);
m_netN = (m_netN + 1U) % 21U;
} else if (m_netState == RS_NET_AUDIO) {
unsigned char n = data[1U];
unsigned int errors = 0U;
if (!m_netHeader.isDataPacket()) {
if (CUtils::compare(data + 2U, DSTAR_NULL_FRAME_DATA_SRAMBLED_BYTES, DSTAR_VOICE_FRAME_LENGTH_BYTES) < 5U) {
// Fix any scrambled null data frames, typically sent by Kenwood D-Star radios
@@ -761,17 +756,15 @@ void CDStarControl::writeNetwork()
data[1U] = TAG_DATA;
// Insert silence and reject if in the past
bool ret = insertSilence(data + 1U, n);
bool ret = insertSilence(data + 1U, m_netN);
if (!ret)
return;
m_netErrs += errors;
m_netBits += 48U;
m_netN = n;
// Regenerate the sync
if (n == 0U)
if (m_netN == 0U)
CSync::addDStarSync(data + 2U);
m_packetTimer.start();
@@ -781,8 +774,6 @@ void CDStarControl::writeNetwork()
writeFile(data + 1U, length - 1U);
#endif
writeQueueDataNet(data + 1U);
m_netN = (m_netN + 1U) % 21U;
}
} else {
CUtils::dump("D-Star, unknown data from network", data, DSTAR_FRAME_LENGTH_BYTES + 1U);