784 lines
19 KiB
C++
784 lines
19 KiB
C++
/*
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* Copyright (C) 2015,2016,2017 Jonathan Naylor, G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "YSFControl.h"
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#include "YSFFICH.h"
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#include "Utils.h"
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#include "Sync.h"
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#include "Log.h"
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#include <cstdio>
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#include <cassert>
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#include <cstring>
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#include <ctime>
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// #define DUMP_YSF
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CYSFControl::CYSFControl(const std::string& callsign, CYSFNetwork* network, CDisplay* display, unsigned int timeout, bool duplex, bool remoteGateway, CRSSIInterpolator* rssiMapper) :
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m_callsign(NULL),
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m_network(network),
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m_display(display),
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m_duplex(duplex),
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m_remoteGateway(remoteGateway),
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m_queue(5000U, "YSF Control"),
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m_rfState(RS_RF_LISTENING),
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m_netState(RS_NET_IDLE),
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m_rfTimeoutTimer(1000U, timeout),
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m_netTimeoutTimer(1000U, timeout),
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m_packetTimer(1000U, 0U, 200U),
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m_networkWatchdog(1000U, 0U, 1500U),
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m_elapsed(),
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m_rfFrames(0U),
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m_netFrames(0U),
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m_netLost(0U),
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m_rfErrs(0U),
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m_rfBits(1U),
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m_netErrs(0U),
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m_netBits(1U),
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m_rfSource(NULL),
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m_rfDest(NULL),
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m_netSource(NULL),
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m_netDest(NULL),
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m_lastFrame(NULL),
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m_lastFrameValid(false),
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m_lastMode(YSF_DT_VOICE_FR_MODE),
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m_lastMR(YSF_MR_NOT_BUSY),
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m_netN(0U),
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m_rfPayload(),
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m_netPayload(),
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m_rssiMapper(rssiMapper),
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m_rssi(0U),
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m_maxRSSI(0U),
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m_minRSSI(0U),
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m_aveRSSI(0U),
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m_rssiCount(0U),
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m_fp(NULL)
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{
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assert(display != NULL);
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assert(rssiMapper != NULL);
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m_rfPayload.setUplink(callsign);
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m_rfPayload.setDownlink(callsign);
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m_netPayload.setDownlink(callsign);
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m_netSource = new unsigned char[YSF_CALLSIGN_LENGTH];
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m_netDest = new unsigned char[YSF_CALLSIGN_LENGTH];
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m_lastFrame = new unsigned char[YSF_FRAME_LENGTH_BYTES + 2U];
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m_callsign = new unsigned char[YSF_CALLSIGN_LENGTH];
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std::string node = callsign;
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node.resize(YSF_CALLSIGN_LENGTH, ' ');
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for (unsigned int i = 0U; i < YSF_CALLSIGN_LENGTH; i++)
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m_callsign[i] = node.at(i);
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}
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CYSFControl::~CYSFControl()
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{
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delete[] m_netSource;
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delete[] m_netDest;
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delete[] m_lastFrame;
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delete[] m_callsign;
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}
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bool CYSFControl::writeModem(unsigned char *data, unsigned int len)
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{
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assert(data != NULL);
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unsigned char type = data[0U];
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if (type == TAG_LOST && m_rfState == RS_RF_AUDIO) {
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LogMessage("YSF, transmission lost, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits), m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
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writeEndRF();
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return false;
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}
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if (type == TAG_LOST)
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return false;
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// Have we got RSSI bytes on the end?
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if (len == (YSF_FRAME_LENGTH_BYTES + 4U)) {
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uint16_t raw = 0U;
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raw |= (data[122U] << 8) & 0xFF00U;
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raw |= (data[123U] << 0) & 0x00FFU;
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// Convert the raw RSSI to dBm
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int rssi = m_rssiMapper->interpolate(raw);
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LogDebug("YSF, raw RSSI: %u, reported RSSI: %d dBm", raw, rssi);
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// RSSI is always reported as positive
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m_rssi = (rssi >= 0) ? rssi : -rssi;
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if (m_rssi > m_minRSSI)
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m_minRSSI = m_rssi;
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if (m_rssi < m_maxRSSI)
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m_maxRSSI = m_rssi;
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m_aveRSSI += m_rssi;
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m_rssiCount++;
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}
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CYSFFICH fich;
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bool valid = fich.decode(data + 2U);
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if (valid && m_rfState == RS_RF_LISTENING) {
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unsigned char fi = fich.getFI();
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if (fi == YSF_FI_TERMINATOR)
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return false;
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m_rfFrames = 0U;
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m_rfErrs = 0U;
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m_rfBits = 1U;
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m_rfTimeoutTimer.start();
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m_rfPayload.reset();
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m_rfState = RS_RF_AUDIO;
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m_minRSSI = m_rssi;
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m_maxRSSI = m_rssi;
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m_aveRSSI = m_rssi;
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m_rssiCount = 1U;
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#if defined(DUMP_YSF)
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openFile();
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#endif
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}
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if (m_rfState != RS_RF_AUDIO)
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return false;
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if (valid)
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m_lastMR = fich.getMR();
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// Stop repeater packets coming through, unless we're acting as a remote gateway
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if (m_remoteGateway) {
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if (m_lastMR != YSF_MR_BUSY)
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return false;
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} else {
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if (m_lastMR == YSF_MR_BUSY)
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return false;
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}
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unsigned char fi = fich.getFI();
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if (valid && fi == YSF_FI_HEADER) {
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CSync::addYSFSync(data + 2U);
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// LogDebug("YSF, FICH: FI: %u, DT: %u, FN: %u, FT: %u", fich.getFI(), fich.getDT(), fich.getFN(), fich.getFT());
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valid = m_rfPayload.processHeaderData(data + 2U);
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if (valid)
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m_rfSource = m_rfPayload.getSource();
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unsigned char cm = fich.getCM();
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if (cm == YSF_CM_GROUP) {
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m_rfDest = (unsigned char*)"ALL ";
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} else {
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if (valid)
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m_rfDest = m_rfPayload.getDest();
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}
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if (m_rfSource != NULL && m_rfDest != NULL) {
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m_display->writeFusion((char*)m_rfSource, (char*)m_rfDest, "R", " ");
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LogMessage("YSF, received RF header from %10.10s to %10.10s", m_rfSource, m_rfDest);
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} else if (m_rfSource == NULL && m_rfDest != NULL) {
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m_display->writeFusion("??????????", (char*)m_rfDest, "R", " ");
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LogMessage("YSF, received RF header from ?????????? to %10.10s", m_rfDest);
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} else if (m_rfSource != NULL && m_rfDest == NULL) {
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m_display->writeFusion((char*)m_rfSource, "??????????", "R", " ");
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LogMessage("YSF, received RF header from %10.10s to ??????????", m_rfSource);
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} else {
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m_display->writeFusion("??????????", "??????????", "R", " ");
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LogMessage("YSF, received RF header from ?????????? to ??????????");
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}
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data[0U] = TAG_DATA;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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m_rfFrames++;
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} else if (valid && fi == YSF_FI_TERMINATOR) {
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CSync::addYSFSync(data + 2U);
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// LogDebug("YSF, FICH: FI: %u, DT: %u, FN: %u, FT: %u", fich.getFI(), fich.getDT(), fich.getFN(), fich.getFT());
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m_rfPayload.processHeaderData(data + 2U);
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data[0U] = TAG_EOT;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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m_rfFrames++;
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LogMessage("YSF, received RF end of transmission, %.1f seconds, BER: %.1f%%, RSSI: -%u/-%u/-%u dBm", float(m_rfFrames) / 10.0F, float(m_rfErrs * 100U) / float(m_rfBits), m_minRSSI, m_maxRSSI, m_aveRSSI / m_rssiCount);
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writeEndRF();
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return false;
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} else if (valid) {
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CSync::addYSFSync(data + 2U);
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unsigned char bn = fich.getBN();
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unsigned char bt = fich.getBT();
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unsigned char fn = fich.getFN();
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unsigned char ft = fich.getFT();
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unsigned char dt = fich.getDT();
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// LogDebug("YSF, FICH: FI: %u, DT: %u, FN: %u, FT: %u", fich.getFI(), fich.getDT(), fich.getFN(), fich.getFT());
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switch (dt) {
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case YSF_DT_VD_MODE1: {
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valid = m_rfPayload.processVDMode1Data(data + 2U, fn);
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unsigned int errors = m_rfPayload.processVDMode1Audio(data + 2U);
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m_rfErrs += errors;
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m_rfBits += 235U;
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LogDebug("YSF, V/D Mode 1, seq %u, AMBE FEC %u/235 (%.1f%%)", m_rfFrames % 128, errors, float(errors) / 2.35F);
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}
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break;
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case YSF_DT_VD_MODE2: {
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valid = m_rfPayload.processVDMode2Data(data + 2U, fn);
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unsigned int errors = m_rfPayload.processVDMode2Audio(data + 2U);
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m_rfErrs += errors;
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m_rfBits += 135U;
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LogDebug("YSF, V/D Mode 2, seq %u, Repetition FEC %u/135 (%.1f%%)", m_rfFrames % 128, errors, float(errors) / 1.35F);
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}
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break;
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case YSF_DT_DATA_FR_MODE:
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LogDebug("YSF, RF data FICH B=%u/%u F=%u/%u", bn, bt, fn, ft);
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valid = m_rfPayload.processDataFRModeData(data + 2U, fn);
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break;
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case YSF_DT_VOICE_FR_MODE:
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if (fn != 0U || ft != 1U) {
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// The first packet after the header is odd, don't try and regenerate it
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unsigned int errors = m_rfPayload.processVoiceFRModeAudio(data + 2U);
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m_rfErrs += errors;
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m_rfBits += 720U;
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LogDebug("YSF, V Mode 3, seq %u, AMBE FEC %u/720 (%.1f%%)", m_rfFrames % 128, errors, float(errors) / 7.2F);
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}
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valid = false;
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break;
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default:
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break;
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}
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bool change = false;
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if (m_rfDest == NULL) {
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unsigned char cm = fich.getCM();
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if (cm == YSF_CM_GROUP) {
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m_rfDest = (unsigned char*)"ALL ";
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change = true;
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} else if (valid) {
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m_rfDest = m_rfPayload.getDest();
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if (m_rfDest != NULL)
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change = true;
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}
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}
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if (valid && m_rfSource == NULL) {
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m_rfSource = m_rfPayload.getSource();
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if (m_rfSource != NULL)
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change = true;
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}
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if (change) {
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if (m_rfSource != NULL && m_rfDest != NULL) {
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m_display->writeFusion((char*)m_rfSource, (char*)m_rfDest, "R", " ");
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LogMessage("YSF, received RF data from %10.10s to %10.10s", m_rfSource, m_rfDest);
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}
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if (m_rfSource != NULL && m_rfDest == NULL) {
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m_display->writeFusion((char*)m_rfSource, "??????????", "R", " ");
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LogMessage("YSF, received RF data from %10.10s to ??????????", m_rfSource);
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}
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if (m_rfSource == NULL && m_rfDest != NULL) {
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m_display->writeFusion("??????????", (char*)m_rfDest, "R", " ");
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LogMessage("YSF, received RF data from ?????????? to %10.10s", m_rfDest);
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}
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}
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data[0U] = TAG_DATA;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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if (m_duplex) {
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fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
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fich.encode(data + 2U);
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writeQueueRF(data);
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}
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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m_rfFrames++;
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} else {
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CSync::addYSFSync(data + 2U);
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data[0U] = TAG_DATA;
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data[1U] = 0x00U;
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writeNetwork(data, m_rfFrames % 128U);
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if (m_duplex)
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writeQueueRF(data);
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#if defined(DUMP_YSF)
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writeFile(data + 2U);
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#endif
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m_rfFrames++;
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}
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return true;
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}
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unsigned int CYSFControl::readModem(unsigned char* data)
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{
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assert(data != NULL);
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if (m_queue.isEmpty())
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return 0U;
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unsigned char len = 0U;
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m_queue.getData(&len, 1U);
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m_queue.getData(data, len);
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return len;
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}
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void CYSFControl::writeEndRF()
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{
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m_rfState = RS_RF_LISTENING;
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m_rfTimeoutTimer.stop();
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m_rfPayload.reset();
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// These variables are free'd by YSFPayload
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m_rfSource = NULL;
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m_rfDest = NULL;
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if (m_netState == RS_NET_IDLE) {
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m_display->clearFusion();
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if (m_network != NULL)
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m_network->reset();
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}
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#if defined(DUMP_YSF)
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closeFile();
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#endif
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}
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void CYSFControl::writeEndNet()
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{
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m_netState = RS_NET_IDLE;
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m_netTimeoutTimer.stop();
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m_networkWatchdog.stop();
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m_packetTimer.stop();
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m_lastFrameValid = false;
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m_netPayload.reset();
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m_display->clearFusion();
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if (m_network != NULL)
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m_network->reset();
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}
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void CYSFControl::writeNetwork()
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{
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unsigned char data[200U];
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unsigned int length = m_network->read(data);
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if (length == 0U)
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return;
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if (m_rfState != RS_RF_LISTENING && m_netState == RS_NET_IDLE)
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return;
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m_networkWatchdog.start();
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bool gateway = ::memcmp(data + 4U, m_callsign, YSF_CALLSIGN_LENGTH) == 0;
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unsigned char n = (data[34U] & 0xFEU) >> 1;
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bool end = (data[34U] & 0x01U) == 0x01U;
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if (!m_netTimeoutTimer.isRunning()) {
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if (end)
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return;
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if (::memcmp(data + 14U, " ", YSF_CALLSIGN_LENGTH) != 0)
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::memcpy(m_netSource, data + 14U, YSF_CALLSIGN_LENGTH);
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else
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::memcpy(m_netSource, "??????????", YSF_CALLSIGN_LENGTH);
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if (::memcmp(data + 24U, " ", YSF_CALLSIGN_LENGTH) != 0)
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::memcpy(m_netDest, data + 24U, YSF_CALLSIGN_LENGTH);
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else
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::memcpy(m_netDest, "??????????", YSF_CALLSIGN_LENGTH);
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m_display->writeFusion((char*)m_netSource, (char*)m_netDest, "N", (char*)(data + 4U));
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LogMessage("YSF, received network data from %10.10s to %10.10s at %10.10s", m_netSource, m_netDest, data + 4U);
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m_netTimeoutTimer.start();
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m_netPayload.reset();
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m_packetTimer.start();
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m_elapsed.start();
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m_lastFrameValid = false;
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m_netState = RS_NET_AUDIO;
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m_netFrames = 0U;
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m_netLost = 0U;
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m_netErrs = 0U;
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m_netBits = 1U;
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m_netN = 0U;
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} else {
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// Check for duplicate frames, if we can
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if (m_netN == n)
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return;
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bool changed = false;
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if (::memcmp(data + 14U, " ", YSF_CALLSIGN_LENGTH) != 0 && ::memcmp(m_netSource, "??????????", YSF_CALLSIGN_LENGTH) == 0) {
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::memcpy(m_netSource, data + 14U, YSF_CALLSIGN_LENGTH);
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changed = true;
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}
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if (::memcmp(data + 24U, " ", YSF_CALLSIGN_LENGTH) != 0 && ::memcmp(m_netDest, "??????????", YSF_CALLSIGN_LENGTH) == 0) {
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::memcpy(m_netDest, data + 24U, YSF_CALLSIGN_LENGTH);
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changed = true;
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}
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if (changed) {
|
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m_display->writeFusion((char*)m_netSource, (char*)m_netDest, "N", (char*)(data + 4U));
|
|
LogMessage("YSF, received network data from %10.10s to %10.10s at %10.10s", m_netSource, m_netDest, data + 4U);
|
|
}
|
|
}
|
|
|
|
data[33U] = end ? TAG_EOT : TAG_DATA;
|
|
data[34U] = 0x00U;
|
|
|
|
// bool send = true;
|
|
|
|
CYSFFICH fich;
|
|
bool valid = fich.decode(data + 35U);
|
|
if (valid) {
|
|
unsigned char bn = fich.getBN();
|
|
unsigned char bt = fich.getBT();
|
|
unsigned char dt = fich.getDT();
|
|
unsigned char fn = fich.getFN();
|
|
unsigned char ft = fich.getFT();
|
|
unsigned char fi = fich.getFI();
|
|
|
|
fich.setVoIP(true);
|
|
fich.setMR(m_remoteGateway ? YSF_MR_NOT_BUSY : YSF_MR_BUSY);
|
|
fich.encode(data + 35U);
|
|
|
|
m_lastMode = dt;
|
|
|
|
// Set the downlink callsign
|
|
switch (fi) {
|
|
case YSF_FI_HEADER:
|
|
case YSF_FI_TERMINATOR:
|
|
m_netPayload.processHeaderData(data + 35U);
|
|
break;
|
|
|
|
case YSF_FI_COMMUNICATIONS:
|
|
switch (dt) {
|
|
case YSF_DT_VD_MODE1: {
|
|
m_netPayload.processVDMode1Data(data + 35U, fn, gateway);
|
|
unsigned int errors = m_netPayload.processVDMode1Audio(data + 35U);
|
|
// send = insertSilence(data + 33U, n);
|
|
// if (send) {
|
|
m_netErrs += errors;
|
|
m_netBits += 235U;
|
|
LogDebug("YSF, V/D Mode 1, seq %u, AMBE FEC %u/235 (%.1f%%)", n, errors, float(errors) / 2.35F);
|
|
// }
|
|
}
|
|
break;
|
|
|
|
case YSF_DT_VD_MODE2: {
|
|
m_netPayload.processVDMode2Data(data + 35U, fn, gateway);
|
|
unsigned int errors = m_netPayload.processVDMode2Audio(data + 35U);
|
|
// send = insertSilence(data + 33U, n);
|
|
// if (send) {
|
|
m_netErrs += errors;
|
|
m_netBits += 135U;
|
|
LogDebug("YSF, V/D Mode 2, seq %u, Repetition FEC %u/135 (%.1f%%)", n, errors, float(errors) / 1.35F);
|
|
// }
|
|
}
|
|
break;
|
|
|
|
case YSF_DT_DATA_FR_MODE:
|
|
LogDebug("YSF, Network data FICH B=%u/%u F=%u/%u", bn, bt, fn, ft);
|
|
m_netPayload.processDataFRModeData(data + 35U, fn, gateway);
|
|
break;
|
|
|
|
case YSF_DT_VOICE_FR_MODE:
|
|
if (fn != 0U || ft != 1U) {
|
|
// The first packet after the header is odd, don't try and regenerate it
|
|
unsigned int errors = m_netPayload.processVoiceFRModeAudio(data + 35U);
|
|
// send = insertSilence(data + 33U, n);
|
|
// if (send) {
|
|
m_netErrs += errors;
|
|
m_netBits += 720U;
|
|
LogDebug("YSF, V Mode 3, seq %u, AMBE FEC %u/720 (%.1f%%)", n, errors, float(errors) / 7.2F);
|
|
// }
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
// send = insertSilence(data + 33U, n);
|
|
}
|
|
|
|
// if (send) {
|
|
writeQueueNet(data + 33U);
|
|
m_packetTimer.start();
|
|
m_netFrames++;
|
|
m_netN = n;
|
|
// }
|
|
|
|
if (end) {
|
|
LogMessage("YSF, received network end of transmission, %.1f seconds, %u%% packet loss, BER: %.1f%%", float(m_netFrames) / 10.0F, (m_netLost * 100U) / m_netFrames, float(m_netErrs * 100U) / float(m_netBits));
|
|
writeEndNet();
|
|
}
|
|
}
|
|
|
|
void CYSFControl::clock(unsigned int ms)
|
|
{
|
|
if (m_network != NULL)
|
|
writeNetwork();
|
|
|
|
m_rfTimeoutTimer.clock(ms);
|
|
m_netTimeoutTimer.clock(ms);
|
|
|
|
if (m_netState == RS_NET_AUDIO) {
|
|
m_networkWatchdog.clock(ms);
|
|
|
|
if (m_networkWatchdog.hasExpired()) {
|
|
LogMessage("YSF, network watchdog has expired, %.1f seconds, %u%% packet loss, BER: %.1f%%", float(m_netFrames) / 10.0F, (m_netLost * 100U) / m_netFrames, float(m_netErrs * 100U) / float(m_netBits));
|
|
writeEndNet();
|
|
}
|
|
}
|
|
|
|
/*
|
|
if (m_netState == RS_NET_AUDIO) {
|
|
m_packetTimer.clock(ms);
|
|
|
|
if (m_packetTimer.isRunning() && m_packetTimer.hasExpired()) {
|
|
unsigned int elapsed = m_elapsed.elapsed();
|
|
unsigned int frames = elapsed / YSF_FRAME_TIME;
|
|
|
|
if (frames > m_netFrames) {
|
|
unsigned int count = frames - m_netFrames;
|
|
if (count > 2U) {
|
|
LogDebug("YSF, lost audio for 200ms filling in, elapsed: %ums, expected: %u, received: %u", elapsed, frames, m_netFrames);
|
|
insertSilence(count - 1U);
|
|
}
|
|
}
|
|
|
|
m_packetTimer.start();
|
|
}
|
|
}
|
|
*/
|
|
}
|
|
|
|
void CYSFControl::writeQueueRF(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netState != RS_NET_IDLE)
|
|
return;
|
|
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = YSF_FRAME_LENGTH_BYTES + 2U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("YSF, overflow in the System Fusion RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CYSFControl::writeQueueNet(const unsigned char *data)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_netTimeoutTimer.isRunning() && m_netTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
unsigned char len = YSF_FRAME_LENGTH_BYTES + 2U;
|
|
|
|
unsigned int space = m_queue.freeSpace();
|
|
if (space < (len + 1U)) {
|
|
LogError("YSF, overflow in the System Fusion RF queue");
|
|
return;
|
|
}
|
|
|
|
m_queue.addData(&len, 1U);
|
|
|
|
m_queue.addData(data, len);
|
|
}
|
|
|
|
void CYSFControl::writeNetwork(const unsigned char *data, unsigned int count)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
if (m_network == NULL)
|
|
return;
|
|
|
|
if (m_rfTimeoutTimer.isRunning() && m_rfTimeoutTimer.hasExpired())
|
|
return;
|
|
|
|
m_network->write(m_rfSource, m_rfDest, data + 2U, count, data[0U] == TAG_EOT);
|
|
}
|
|
|
|
bool CYSFControl::openFile()
|
|
{
|
|
if (m_fp != NULL)
|
|
return true;
|
|
|
|
time_t t;
|
|
::time(&t);
|
|
|
|
struct tm* tm = ::localtime(&t);
|
|
|
|
char name[100U];
|
|
::sprintf(name, "YSF_%04d%02d%02d_%02d%02d%02d.ambe", tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
|
|
|
|
m_fp = ::fopen(name, "wb");
|
|
if (m_fp == NULL)
|
|
return false;
|
|
|
|
::fwrite("YSF", 1U, 3U, m_fp);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CYSFControl::writeFile(const unsigned char* data)
|
|
{
|
|
if (m_fp == NULL)
|
|
return false;
|
|
|
|
::fwrite(data, 1U, YSF_FRAME_LENGTH_BYTES, m_fp);
|
|
|
|
return true;
|
|
}
|
|
|
|
void CYSFControl::closeFile()
|
|
{
|
|
if (m_fp != NULL) {
|
|
::fclose(m_fp);
|
|
m_fp = NULL;
|
|
}
|
|
}
|
|
|
|
bool CYSFControl::insertSilence(const unsigned char* data, unsigned char n)
|
|
{
|
|
assert(data != NULL);
|
|
|
|
// Check to see if we have any spaces to fill?
|
|
unsigned char newN = (m_netN + 1U) % 128U;
|
|
if (newN == n) {
|
|
// Just copy the data, nothing else to do here
|
|
::memcpy(m_lastFrame, data, YSF_FRAME_LENGTH_BYTES + 2U);
|
|
m_lastFrameValid = true;
|
|
return true;
|
|
}
|
|
|
|
LogDebug("YSF, current=%u last=%u", n, m_netN);
|
|
|
|
unsigned int count;
|
|
if (n > newN)
|
|
count = n - newN;
|
|
else
|
|
count = (128U + n) - newN;
|
|
|
|
if (count >= 4U) {
|
|
LogDebug("YSF, frame is out of range, count = %u", count);
|
|
return false;
|
|
}
|
|
|
|
insertSilence(count);
|
|
|
|
::memcpy(m_lastFrame, data, YSF_FRAME_LENGTH_BYTES + 2U);
|
|
m_lastFrameValid = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
void CYSFControl::insertSilence(unsigned int count)
|
|
{
|
|
// We can't meaningfully create "silent" data
|
|
if (m_lastMode == YSF_DT_DATA_FR_MODE)
|
|
return;
|
|
|
|
LogDebug("YSF, insert %u frames", count);
|
|
|
|
unsigned char n = (m_netN + 1U) % 128U;
|
|
|
|
for (unsigned int i = 0U; i < count; i++) {
|
|
writeQueueNet(m_lastFrame);
|
|
|
|
m_netN = n;
|
|
|
|
m_netFrames++;
|
|
m_netLost++;
|
|
|
|
n = (n + 1U) % 128U;
|
|
}
|
|
|
|
LogDebug("YSF, last=%u", m_netN);
|
|
}
|