jamulus/src/server.cpp
2013-09-08 20:15:21 +00:00

1480 lines
64 KiB
C++
Executable file

/******************************************************************************\
* Copyright (c) 2004-2013
*
* Author(s):
* Volker Fischer
*
******************************************************************************
*
* 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; either version 2 of the License, or (at your option) any later
* version.
*
* 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 for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
\******************************************************************************/
#include "server.h"
// CHighPrecisionTimer implementation ******************************************
#ifdef _WIN32
CHighPrecisionTimer::CHighPrecisionTimer()
{
// add some error checking, the high precision timer implementation only
// supports 128 samples frame size at 48 kHz sampling rate
#if ( SYSTEM_FRAME_SIZE_SAMPLES != 128 )
# error "Only system frame size of 128 samples is supported by this module"
#endif
#if ( SYSTEM_SAMPLE_RATE_HZ != 48000 )
# error "Only a system sample rate of 48 kHz is supported by this module"
#endif
// Since QT only supports a minimum timer resolution of 1 ms but for our
// server we require a timer interval of 2.333 ms for 128 samples
// frame size at 48 kHz sampling rate.
// To support this interval, we use a timer with 2 ms
// resolution and fire the actual frame timer if the error to the actual
// required interval is minimum.
veciTimeOutIntervals.Init ( 3 );
// for 128 sample frame size at 48 kHz sampling rate:
// actual intervals: 0.0 2.666 5.333 8.0
// quantized to 2 ms: 0 2 6 8 (0)
veciTimeOutIntervals[0] = 0;
veciTimeOutIntervals[1] = 1;
veciTimeOutIntervals[2] = 0;
// connect timer timeout signal
QObject::connect ( &Timer, SIGNAL ( timeout() ),
this, SLOT ( OnTimer() ) );
}
void CHighPrecisionTimer::Start()
{
// reset position pointer and counter
iCurPosInVector = 0;
iIntervalCounter = 0;
// start internal timer with 2 ms resolution
Timer.start ( 2 );
}
void CHighPrecisionTimer::Stop()
{
// stop timer
Timer.stop();
}
void CHighPrecisionTimer::OnTimer()
{
// check if maximum number of high precision timer intervals are
// finished
if ( veciTimeOutIntervals[iCurPosInVector] == iIntervalCounter )
{
// reset interval counter
iIntervalCounter = 0;
// go to next position in vector, take care of wrap around
iCurPosInVector++;
if ( iCurPosInVector == veciTimeOutIntervals.Size() )
{
iCurPosInVector = 0;
}
// minimum time error to actual required timer interval is reached,
// emit signal for server
emit timeout();
}
else
{
// next high precision timer interval
iIntervalCounter++;
}
}
#else // Mac and Linux
CHighPrecisionTimer::CHighPrecisionTimer() :
bRun ( false )
{
// calculate delay in ns
const uint64_t iNsDelay =
( (uint64_t) SYSTEM_FRAME_SIZE_SAMPLES * 1000000000 ) /
(uint64_t) SYSTEM_SAMPLE_RATE_HZ; // in ns
#if defined ( __APPLE__ ) || defined ( __MACOSX )
// calculate delay in mach absolute time
struct mach_timebase_info timeBaseInfo;
mach_timebase_info ( &timeBaseInfo );
Delay = ( iNsDelay * (uint64_t) timeBaseInfo.denom ) /
(uint64_t) timeBaseInfo.numer;
#else
// set delay
Delay = iNsDelay;
#endif
}
void CHighPrecisionTimer::Start()
{
// only start if not already running
if ( !bRun )
{
// set run flag
bRun = true;
// set initial end time
#if defined ( __APPLE__ ) || defined ( __MACOSX )
NextEnd = mach_absolute_time() + Delay;
#else
clock_gettime ( CLOCK_MONOTONIC, &NextEnd );
NextEnd.tv_nsec += Delay;
if ( NextEnd.tv_nsec >= 1000000000L )
{
NextEnd.tv_sec++;
NextEnd.tv_nsec -= 1000000000L;
}
#endif
// start thread
QThread::start();
}
}
void CHighPrecisionTimer::Stop()
{
// set flag so that thread can leave the main loop
bRun = false;
// give thread some time to terminate
wait ( 5000 );
}
void CHighPrecisionTimer::run()
{
// loop until the thread shall be terminated
while ( bRun )
{
// call processing routine by fireing signal
emit timeout();
// now wait until the next buffer shall be processed (we
// use the "increment method" to make sure we do not introduce
// a timing drift)
#if defined ( __APPLE__ ) || defined ( __MACOSX )
mach_wait_until ( NextEnd );
NextEnd += Delay;
#else
clock_nanosleep ( CLOCK_MONOTONIC,
TIMER_ABSTIME,
&NextEnd,
NULL );
NextEnd.tv_nsec += Delay;
if ( NextEnd.tv_nsec >= 1000000000L )
{
NextEnd.tv_sec++;
NextEnd.tv_nsec -= 1000000000L;
}
#endif
}
}
#endif
// CServer implementation ******************************************************
CServer::CServer ( const int iNewNumChan,
const QString& strLoggingFileName,
const quint16 iPortNumber,
const QString& strHTMLStatusFileName,
const QString& strHistoryFileName,
const QString& strServerNameForHTMLStatusFile,
const QString& strCentralServer,
const QString& strServerInfo,
const QString& strNewWelcomeMessage,
const bool bNCentServPingServerInList ) :
iNumChannels ( iNewNumChan ),
Socket ( this, iPortNumber ),
bWriteStatusHTMLFile ( false ),
ServerListManager ( iPortNumber,
strCentralServer,
strServerInfo,
iNewNumChan,
bNCentServPingServerInList,
&ConnLessProtocol ),
bAutoRunMinimized ( false ),
strWelcomeMessage ( strNewWelcomeMessage )
{
int iOpusError;
int i;
// create CELT encoder/decoder for each channel (must be done before
// enabling the channels), create a mono and stereo encoder/decoder
// for each channel
for ( i = 0; i < iNumChannels; i++ )
{
// init audio endocder/decoder (mono)
CeltModeMono[i] = cc6_celt_mode_create (
SYSTEM_SAMPLE_RATE_HZ, 1, SYSTEM_FRAME_SIZE_SAMPLES, NULL );
CeltEncoderMono[i] = cc6_celt_encoder_create ( CeltModeMono[i] );
CeltDecoderMono[i] = cc6_celt_decoder_create ( CeltModeMono[i] );
#ifdef USE_LOW_COMPLEXITY_CELT_ENC
// set encoder low complexity
cc6_celt_encoder_ctl ( CeltEncoderMono[i],
cc6_CELT_SET_COMPLEXITY ( 1 ) );
#endif
OpusMode[i] = opus_custom_mode_create ( SYSTEM_SAMPLE_RATE_HZ,
SYSTEM_FRAME_SIZE_SAMPLES,
&iOpusError );
OpusEncoderMono[i] = opus_custom_encoder_create ( OpusMode[i],
1,
&iOpusError );
OpusDecoderMono[i] = opus_custom_decoder_create ( OpusMode[i],
1,
&iOpusError );
// we require a constant bit rate
opus_custom_encoder_ctl ( OpusEncoderMono[i],
OPUS_SET_VBR ( 0 ) );
// we want as low delay as possible
opus_custom_encoder_ctl ( OpusEncoderMono[i],
OPUS_SET_APPLICATION ( OPUS_APPLICATION_RESTRICTED_LOWDELAY ) );
#ifdef USE_LOW_COMPLEXITY_CELT_ENC
// set encoder low complexity
opus_custom_encoder_ctl ( OpusEncoderMono[i],
OPUS_SET_COMPLEXITY ( 1 ) );
#endif
// init audio endocder/decoder (stereo)
CeltModeStereo[i] = cc6_celt_mode_create (
SYSTEM_SAMPLE_RATE_HZ, 2, SYSTEM_FRAME_SIZE_SAMPLES, NULL );
CeltEncoderStereo[i] = cc6_celt_encoder_create ( CeltModeStereo[i] );
CeltDecoderStereo[i] = cc6_celt_decoder_create ( CeltModeStereo[i] );
#ifdef USE_LOW_COMPLEXITY_CELT_ENC
// set encoder low complexity
cc6_celt_encoder_ctl ( CeltEncoderStereo[i],
cc6_CELT_SET_COMPLEXITY ( 1 ) );
#endif
OpusEncoderStereo[i] = opus_custom_encoder_create ( OpusMode[i],
2,
&iOpusError );
OpusDecoderStereo[i] = opus_custom_decoder_create ( OpusMode[i],
2,
&iOpusError );
// we require a constant bit rate
opus_custom_encoder_ctl ( OpusEncoderStereo[i],
OPUS_SET_VBR ( 0 ) );
// we want as low delay as possible
opus_custom_encoder_ctl ( OpusEncoderStereo[i],
OPUS_SET_APPLICATION ( OPUS_APPLICATION_RESTRICTED_LOWDELAY ) );
#ifdef USE_LOW_COMPLEXITY_CELT_ENC
// set encoder low complexity
opus_custom_encoder_ctl ( OpusEncoderStereo[i],
OPUS_SET_COMPLEXITY ( 1 ) );
#endif
}
// define colors for chat window identifiers
vstrChatColors.Init ( 6 );
vstrChatColors[0] = "mediumblue";
vstrChatColors[1] = "red";
vstrChatColors[2] = "darkorchid";
vstrChatColors[3] = "green";
vstrChatColors[4] = "maroon";
vstrChatColors[5] = "coral";
// enable history graph (if requested)
if ( !strHistoryFileName.isEmpty() )
{
Logging.EnableHistory ( strHistoryFileName );
}
// enable logging (if requested)
if ( !strLoggingFileName.isEmpty() )
{
// in case the history is enabled and a logging file name is
// given, parse the logging file for old entries which are then
// added in the history on software startup
if ( !strHistoryFileName.isEmpty() )
{
Logging.ParseLogFile ( strLoggingFileName );
}
Logging.Start ( strLoggingFileName );
}
// HTML status file writing
if ( !strHTMLStatusFileName.isEmpty() )
{
QString strCurServerNameForHTMLStatusFile = strServerNameForHTMLStatusFile;
// if server name is empty, substitude a default name
if ( strCurServerNameForHTMLStatusFile.isEmpty() )
{
strCurServerNameForHTMLStatusFile = "[server address]";
}
// (the static cast to integer of the port number is required so that it
// works correctly under Linux)
StartStatusHTMLFileWriting ( strHTMLStatusFileName,
strCurServerNameForHTMLStatusFile + ":" +
QString().number( static_cast<int> ( iPortNumber ) ) );
}
// enable all channels (for the server all channel must be enabled the
// entire life time of the software)
for ( i = 0; i < iNumChannels; i++ )
{
vecChannels[i].SetEnable ( true );
}
// Connections -------------------------------------------------------------
// connect timer timeout signal
QObject::connect ( &HighPrecisionTimer, SIGNAL ( timeout() ),
this, SLOT ( OnTimer() ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLMessReadyForSending ( CHostAddress, CVector<uint8_t> ) ),
this, SLOT ( OnSendCLProtMessage ( CHostAddress, CVector<uint8_t> ) ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLPingReceived ( CHostAddress, int ) ),
this, SLOT ( OnCLPingReceived ( CHostAddress, int ) ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLPingWithNumClientsReceived ( CHostAddress, int, int ) ),
this, SLOT ( OnCLPingWithNumClientsReceived ( CHostAddress, int, int ) ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLRegisterServerReceived ( CHostAddress, CServerCoreInfo ) ),
this, SLOT ( OnCLRegisterServerReceived ( CHostAddress, CServerCoreInfo ) ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLUnregisterServerReceived ( CHostAddress ) ),
this, SLOT ( OnCLUnregisterServerReceived ( CHostAddress ) ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLReqServerList ( CHostAddress ) ),
this, SLOT ( OnCLReqServerList ( CHostAddress ) ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLSendEmptyMes ( CHostAddress ) ),
this, SLOT ( OnCLSendEmptyMes ( CHostAddress ) ) );
QObject::connect ( &ConnLessProtocol,
SIGNAL ( CLDisconnection ( CHostAddress ) ),
this, SLOT ( OnCLDisconnection ( CHostAddress ) ) );
// CODE TAG: MAX_NUM_CHANNELS_TAG
// make sure we have MAX_NUM_CHANNELS connections!!!
// send message
QObject::connect ( &vecChannels[0], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh0 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[1], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh1 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[2], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh2 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[3], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh3 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[4], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh4 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[5], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh5 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[6], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh6 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[7], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh7 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[8], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh8 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[9], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh9 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[10], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh10 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[11], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh11 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[12], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh12 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[13], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh13 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[14], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh14 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[15], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh15 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[16], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh16 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[17], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh17 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[18], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh18 ( CVector<uint8_t> ) ) );
QObject::connect ( &vecChannels[19], SIGNAL ( MessReadyForSending ( CVector<uint8_t> ) ), this, SLOT ( OnSendProtMessCh19 ( CVector<uint8_t> ) ) );
// a connection less protocol message was detected
QObject::connect ( &vecChannels[0], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh0 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[1], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh1 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[2], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh2 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[3], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh3 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[4], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh4 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[5], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh5 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[6], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh6 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[7], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh7 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[8], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh8 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[9], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh9 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[10], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh10 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[11], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh11 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[12], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh12 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[13], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh13 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[14], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh14 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[15], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh15 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[16], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh16 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[17], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh17 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[18], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh18 ( CVector<uint8_t>, int ) ) );
QObject::connect ( &vecChannels[19], SIGNAL ( DetectedCLMessage ( CVector<uint8_t>, int ) ), this, SLOT ( OnDetCLMessCh19 ( CVector<uint8_t>, int ) ) );
// request jitter buffer size
QObject::connect ( &vecChannels[0], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh0() ) );
QObject::connect ( &vecChannels[1], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh1() ) );
QObject::connect ( &vecChannels[2], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh2() ) );
QObject::connect ( &vecChannels[3], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh3() ) );
QObject::connect ( &vecChannels[4], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh4() ) );
QObject::connect ( &vecChannels[5], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh5() ) );
QObject::connect ( &vecChannels[6], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh6() ) );
QObject::connect ( &vecChannels[7], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh7() ) );
QObject::connect ( &vecChannels[8], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh8() ) );
QObject::connect ( &vecChannels[9], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh9() ) );
QObject::connect ( &vecChannels[10], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh10() ) );
QObject::connect ( &vecChannels[11], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh11() ) );
QObject::connect ( &vecChannels[12], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh12() ) );
QObject::connect ( &vecChannels[13], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh13() ) );
QObject::connect ( &vecChannels[14], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh14() ) );
QObject::connect ( &vecChannels[15], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh15() ) );
QObject::connect ( &vecChannels[16], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh16() ) );
QObject::connect ( &vecChannels[17], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh17() ) );
QObject::connect ( &vecChannels[18], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh18() ) );
QObject::connect ( &vecChannels[19], SIGNAL ( NewConnection() ), this, SLOT ( OnNewConnectionCh19() ) );
// request connected clients list
QObject::connect ( &vecChannels[0], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh0() ) );
QObject::connect ( &vecChannels[1], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh1() ) );
QObject::connect ( &vecChannels[2], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh2() ) );
QObject::connect ( &vecChannels[3], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh3() ) );
QObject::connect ( &vecChannels[4], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh4() ) );
QObject::connect ( &vecChannels[5], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh5() ) );
QObject::connect ( &vecChannels[6], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh6() ) );
QObject::connect ( &vecChannels[7], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh7() ) );
QObject::connect ( &vecChannels[8], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh8() ) );
QObject::connect ( &vecChannels[9], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh9() ) );
QObject::connect ( &vecChannels[10], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh10() ) );
QObject::connect ( &vecChannels[11], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh11() ) );
QObject::connect ( &vecChannels[12], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh12() ) );
QObject::connect ( &vecChannels[13], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh13() ) );
QObject::connect ( &vecChannels[14], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh14() ) );
QObject::connect ( &vecChannels[15], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh15() ) );
QObject::connect ( &vecChannels[16], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh16() ) );
QObject::connect ( &vecChannels[17], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh17() ) );
QObject::connect ( &vecChannels[18], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh18() ) );
QObject::connect ( &vecChannels[19], SIGNAL ( ReqConnClientsList() ), this, SLOT ( OnReqConnClientsListCh19() ) );
// channel info has changed
QObject::connect ( &vecChannels[0], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh0() ) );
QObject::connect ( &vecChannels[1], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh1() ) );
QObject::connect ( &vecChannels[2], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh2() ) );
QObject::connect ( &vecChannels[3], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh3() ) );
QObject::connect ( &vecChannels[4], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh4() ) );
QObject::connect ( &vecChannels[5], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh5() ) );
QObject::connect ( &vecChannels[6], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh6() ) );
QObject::connect ( &vecChannels[7], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh7() ) );
QObject::connect ( &vecChannels[8], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh8() ) );
QObject::connect ( &vecChannels[9], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh9() ) );
QObject::connect ( &vecChannels[10], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh10() ) );
QObject::connect ( &vecChannels[11], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh11() ) );
QObject::connect ( &vecChannels[12], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh12() ) );
QObject::connect ( &vecChannels[13], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh13() ) );
QObject::connect ( &vecChannels[14], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh14() ) );
QObject::connect ( &vecChannels[15], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh15() ) );
QObject::connect ( &vecChannels[16], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh16() ) );
QObject::connect ( &vecChannels[17], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh17() ) );
QObject::connect ( &vecChannels[18], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh18() ) );
QObject::connect ( &vecChannels[19], SIGNAL ( ChanInfoHasChanged() ), this, SLOT ( OnChanInfoHasChangedCh19() ) );
// chat text received
QObject::connect ( &vecChannels[0], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh0 ( QString ) ) );
QObject::connect ( &vecChannels[1], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh1 ( QString ) ) );
QObject::connect ( &vecChannels[2], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh2 ( QString ) ) );
QObject::connect ( &vecChannels[3], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh3 ( QString ) ) );
QObject::connect ( &vecChannels[4], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh4 ( QString ) ) );
QObject::connect ( &vecChannels[5], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh5 ( QString ) ) );
QObject::connect ( &vecChannels[6], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh6 ( QString ) ) );
QObject::connect ( &vecChannels[7], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh7 ( QString ) ) );
QObject::connect ( &vecChannels[8], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh8 ( QString ) ) );
QObject::connect ( &vecChannels[9], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh9 ( QString ) ) );
QObject::connect ( &vecChannels[10], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh10 ( QString ) ) );
QObject::connect ( &vecChannels[11], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh11 ( QString ) ) );
QObject::connect ( &vecChannels[12], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh12 ( QString ) ) );
QObject::connect ( &vecChannels[13], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh13 ( QString ) ) );
QObject::connect ( &vecChannels[14], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh14 ( QString ) ) );
QObject::connect ( &vecChannels[15], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh15 ( QString ) ) );
QObject::connect ( &vecChannels[16], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh16 ( QString ) ) );
QObject::connect ( &vecChannels[17], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh17 ( QString ) ) );
QObject::connect ( &vecChannels[18], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh18 ( QString ) ) );
QObject::connect ( &vecChannels[19], SIGNAL ( ChatTextReceived ( QString ) ), this, SLOT ( OnChatTextReceivedCh19 ( QString ) ) );
// auto socket buffer size change
QObject::connect ( &vecChannels[0], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh0 ( int ) ) );
QObject::connect ( &vecChannels[1], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh1 ( int ) ) );
QObject::connect ( &vecChannels[2], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh2 ( int ) ) );
QObject::connect ( &vecChannels[3], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh3 ( int ) ) );
QObject::connect ( &vecChannels[4], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh4 ( int ) ) );
QObject::connect ( &vecChannels[5], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh5 ( int ) ) );
QObject::connect ( &vecChannels[6], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh6 ( int ) ) );
QObject::connect ( &vecChannels[7], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh7 ( int ) ) );
QObject::connect ( &vecChannels[8], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh8 ( int ) ) );
QObject::connect ( &vecChannels[9], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh9 ( int ) ) );
QObject::connect ( &vecChannels[10], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh10 ( int ) ) );
QObject::connect ( &vecChannels[11], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh11 ( int ) ) );
QObject::connect ( &vecChannels[12], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh12 ( int ) ) );
QObject::connect ( &vecChannels[13], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh13 ( int ) ) );
QObject::connect ( &vecChannels[14], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh14 ( int ) ) );
QObject::connect ( &vecChannels[15], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh15 ( int ) ) );
QObject::connect ( &vecChannels[16], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh16 ( int ) ) );
QObject::connect ( &vecChannels[17], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh17 ( int ) ) );
QObject::connect ( &vecChannels[18], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh18 ( int ) ) );
QObject::connect ( &vecChannels[19], SIGNAL ( ServerAutoSockBufSizeChange ( int ) ), this, SLOT ( OnServerAutoSockBufSizeChangeCh19 ( int ) ) );
}
void CServer::OnSendProtMessage ( int iChID, CVector<uint8_t> vecMessage )
{
// the protocol queries me to call the function to send the message
// send it through the network
Socket.SendPacket ( vecMessage, vecChannels[iChID].GetAddress() );
}
void CServer::OnNewConnection ( int iChID )
{
// on a new connection we query the network transport properties for the
// audio packets (to use the correct network block size and audio
// compression properties, etc.)
vecChannels[iChID].CreateReqNetwTranspPropsMes();
// this is a new connection, query the jitter buffer size we shall use
// for this client (note that at the same time on a new connection the
// client sends the jitter buffer size by default but maybe we have
// reached a state where this did not happen because of network trouble,
// client or server thinks that the connection was still active, etc.)
vecChannels[iChID].CreateReqJitBufMes();
}
void CServer::OnSendCLProtMessage ( CHostAddress InetAddr,
CVector<uint8_t> vecMessage )
{
// the protocol queries me to call the function to send the message
// send it through the network
Socket.SendPacket ( vecMessage, InetAddr );
}
void CServer::OnDetCLMess ( const CVector<uint8_t>& vecbyMesBodyData,
const int iRecID,
const CHostAddress& InetAddr )
{
// this is a special case: we received a connection less message but we are
// in a connection
ConnLessProtocol.ParseConnectionLessMessageBody ( vecbyMesBodyData,
iRecID,
InetAddr );
}
void CServer::OnCLDisconnection ( CHostAddress InetAddr )
{
// check if the given address is actually a client which is connected to
// this server, if yes, disconnect it
const int iCurChanID = FindChannel ( InetAddr );
if ( iCurChanID != INVALID_CHANNEL_ID )
{
vecChannels[iCurChanID].Disconnect();
}
}
void CServer::Start()
{
// only start if not already running
if ( !IsRunning() )
{
// start timer
HighPrecisionTimer.Start();
// emit start signal
emit Started();
}
}
void CServer::Stop()
{
// Under Mac we have the problem that the timer shutdown might
// take some time and therefore we get a lot of "server stopped"
// entries in the log. The following condition shall prevent this.
// For the other OSs this should not hurt either.
if ( IsRunning() )
{
// stop timer
HighPrecisionTimer.Stop();
// logging (add "server stopped" logging entry)
Logging.AddServerStopped();
// emit stopped signal
emit Stopped();
}
}
void CServer::OnTimer()
{
int i, j;
CVector<int> vecChanID;
CVector<CVector<double> > vecvecdGains;
CVector<CVector<int16_t> > vecvecsData;
CVector<int> vecNumAudioChannels;
// Get data from all connected clients -------------------------------------
bool bChannelIsNowDisconnected = false;
// Make put and get calls thread safe. Do not forget to unlock mutex
// afterwards!
Mutex.lock();
{
// first, get number and IDs of connected channels
vecChanID.Init ( 0 );
for ( i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
// add ID and data
vecChanID.Add ( i );
}
}
// process connected channels
const int iNumCurConnChan = vecChanID.Size();
// init temporary vectors
vecvecdGains.Init ( iNumCurConnChan );
vecvecsData.Init ( iNumCurConnChan );
vecNumAudioChannels.Init ( iNumCurConnChan );
for ( i = 0; i < iNumCurConnChan; i++ )
{
// get actual ID of current channel
const int iCurChanID = vecChanID[i];
// get and store number of audio channels
const int iCurNumAudChan =
vecChannels[iCurChanID].GetNumAudioChannels();
vecNumAudioChannels[i] = iCurNumAudChan;
// init vectors storing information of all channels
vecvecdGains[i].Init ( iNumCurConnChan );
vecvecsData[i].Init ( iCurNumAudChan * SYSTEM_FRAME_SIZE_SAMPLES );
// get gains of all connected channels
for ( j = 0; j < iNumCurConnChan; j++ )
{
// The second index of "vecvecdGains" does not represent
// the channel ID! Therefore we have to use "vecChanID" to
// query the IDs of the currently connected channels
vecvecdGains[i][j] =
vecChannels[iCurChanID].GetGain( vecChanID[j] );
}
// get current number of CELT coded bytes
const int iCeltNumCodedBytes =
vecChannels[iCurChanID].GetNetwFrameSize();
// init temporal data vector and clear input buffers
CVector<uint8_t> vecbyData ( iCeltNumCodedBytes );
// get data
const EGetDataStat eGetStat =
vecChannels[iCurChanID].GetData ( vecbyData );
// if channel was just disconnected, set flag that connected
// client list is sent to all other clients
if ( eGetStat == GS_CHAN_NOW_DISCONNECTED )
{
bChannelIsNowDisconnected = true;
}
// CELT decode received data stream
if ( eGetStat == GS_BUFFER_OK )
{
if ( iCurNumAudChan == 1 )
{
// mono
if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_CELT )
{
cc6_celt_decode ( CeltDecoderMono[iCurChanID],
&vecbyData[0],
iCeltNumCodedBytes,
&vecvecsData[i][0] );
}
else
{
opus_custom_decode ( OpusDecoderMono[iCurChanID],
&vecbyData[0],
iCeltNumCodedBytes,
&vecvecsData[i][0],
SYSTEM_FRAME_SIZE_SAMPLES );
}
}
else
{
// stereo
if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_CELT )
{
cc6_celt_decode ( CeltDecoderStereo[iCurChanID],
&vecbyData[0],
iCeltNumCodedBytes,
&vecvecsData[i][0] );
}
else
{
opus_custom_decode ( OpusDecoderStereo[iCurChanID],
&vecbyData[0],
iCeltNumCodedBytes,
&vecvecsData[i][0],
SYSTEM_FRAME_SIZE_SAMPLES );
}
}
}
else
{
// lost packet
if ( iCurNumAudChan == 1 )
{
// mono
if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_CELT )
{
cc6_celt_decode ( CeltDecoderMono[iCurChanID],
NULL,
0,
&vecvecsData[i][0] );
}
else
{
opus_custom_decode ( OpusDecoderMono[iCurChanID],
NULL,
iCeltNumCodedBytes,
&vecvecsData[i][0],
SYSTEM_FRAME_SIZE_SAMPLES );
}
}
else
{
// stereo
if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_CELT )
{
cc6_celt_decode ( CeltDecoderStereo[iCurChanID],
NULL,
0,
&vecvecsData[i][0] );
}
else
{
opus_custom_decode ( OpusDecoderStereo[iCurChanID],
NULL,
iCeltNumCodedBytes,
&vecvecsData[i][0],
SYSTEM_FRAME_SIZE_SAMPLES );
}
}
}
// send message for get status (for GUI)
if ( eGetStat == GS_BUFFER_OK )
{
PostWinMessage ( MS_JIT_BUF_GET, MUL_COL_LED_GREEN, iCurChanID );
}
else
{
PostWinMessage ( MS_JIT_BUF_GET, MUL_COL_LED_RED, iCurChanID );
}
}
// a channel is now disconnected, take action on it
if ( bChannelIsNowDisconnected )
{
// update channel list for all currently connected clients
CreateAndSendChanListForAllConChannels();
}
}
Mutex.unlock(); // release mutex
// Process data ------------------------------------------------------------
const int iNumClients = vecChanID.Size();
// Check if at least one client is connected. If not, stop server until
// one client is connected.
if ( iNumClients != 0 )
{
for ( int i = 0; i < iNumClients; i++ )
{
// get actual ID of current channel
const int iCurChanID = vecChanID[i];
// generate a sparate mix for each channel
// actual processing of audio data -> mix
CVector<short> vecsSendData ( ProcessData ( i,
vecvecsData,
vecvecdGains[i],
vecNumAudioChannels ) );
// get current number of CELT coded bytes
const int iCeltNumCodedBytes =
vecChannels[iCurChanID].GetNetwFrameSize();
// CELT encoding
CVector<unsigned char> vecCeltData ( iCeltNumCodedBytes );
if ( vecChannels[iCurChanID].GetNumAudioChannels() == 1 )
{
// mono:
if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_CELT )
{
cc6_celt_encode ( CeltEncoderMono[iCurChanID],
&vecsSendData[0],
NULL,
&vecCeltData[0],
iCeltNumCodedBytes );
}
else
{
// TODO find a better place than this: the setting does not change all the time
// so for speed optimization it would be better to set it only if the network
// frame size is changed
opus_custom_encoder_ctl ( OpusEncoderMono[iCurChanID],
OPUS_SET_BITRATE ( CalcBitRateBitsPerSecFromCodedBytes ( iCeltNumCodedBytes ) ) );
opus_custom_encode ( OpusEncoderMono[iCurChanID],
&vecsSendData[0],
SYSTEM_FRAME_SIZE_SAMPLES,
&vecCeltData[0],
iCeltNumCodedBytes );
}
}
else
{
// stereo:
if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_CELT )
{
cc6_celt_encode ( CeltEncoderStereo[iCurChanID],
&vecsSendData[0],
NULL,
&vecCeltData[0],
iCeltNumCodedBytes );
}
else
{
// TODO find a better place than this: the setting does not change all the time
// so for speed optimization it would be better to set it only if the network
// frame size is changed
opus_custom_encoder_ctl ( OpusEncoderStereo[iCurChanID],
OPUS_SET_BITRATE ( CalcBitRateBitsPerSecFromCodedBytes ( iCeltNumCodedBytes ) ) );
opus_custom_encode ( OpusEncoderStereo[iCurChanID],
&vecsSendData[0],
SYSTEM_FRAME_SIZE_SAMPLES,
&vecCeltData[0],
iCeltNumCodedBytes );
}
}
// send separate mix to current clients
Socket.SendPacket (
vecChannels[iCurChanID].PrepSendPacket ( vecCeltData ),
vecChannels[iCurChanID].GetAddress() );
// update socket buffer size
vecChannels[iCurChanID].UpdateSocketBufferSize();
}
}
else
{
// Disable server if no clients are connected. In this case the server
// does not consume any significant CPU when no client is connected.
Stop();
}
}
CVector<int16_t> CServer::ProcessData ( const int iCurIndex,
CVector<CVector<int16_t> >& vecvecsData,
CVector<double>& vecdGains,
CVector<int>& vecNumAudioChannels )
{
int i, j, k;
// get number of audio channels of current channel
const int iCurNumAudChan = vecNumAudioChannels[iCurIndex];
// number of samples for output vector
const int iNumOutSamples = iCurNumAudChan * SYSTEM_FRAME_SIZE_SAMPLES;
// init return vector with zeros since we mix all channels on that vector
CVector<int16_t> vecsOutData ( iNumOutSamples, 0 );
const int iNumClients = vecvecsData.Size();
// mix all audio data from all clients together
if ( iCurNumAudChan == 1 )
{
// Mono target channel -------------------------------------------------
for ( j = 0; j < iNumClients; j++ )
{
// if channel gain is 1, avoid multiplication for speed optimization
if ( vecdGains[j] == static_cast<double> ( 1.0 ) )
{
if ( vecNumAudioChannels[j] == 1 )
{
// mono
for ( i = 0; i < SYSTEM_FRAME_SIZE_SAMPLES; i++ )
{
vecsOutData[i] =
Double2Short ( vecsOutData[i] + vecvecsData[j][i] );
}
}
else
{
// stereo: apply stereo-to-mono attenuation
for ( i = 0, k = 0; i < SYSTEM_FRAME_SIZE_SAMPLES; i++, k += 2 )
{
vecsOutData[i] =
Double2Short ( vecsOutData[i] +
( vecvecsData[j][k] + vecvecsData[j][k + 1] ) / 2 );
}
}
}
else
{
if ( vecNumAudioChannels[j] == 1 )
{
// mono
for ( i = 0; i < SYSTEM_FRAME_SIZE_SAMPLES; i++ )
{
vecsOutData[i] =
Double2Short ( vecsOutData[i] +
vecvecsData[j][i] * vecdGains[j] );
}
}
else
{
// stereo: apply stereo-to-mono attenuation
for ( i = 0, k = 0; i < SYSTEM_FRAME_SIZE_SAMPLES; i++, k += 2 )
{
vecsOutData[i] =
Double2Short ( vecsOutData[i] + vecdGains[j] *
( vecvecsData[j][k] + vecvecsData[j][k + 1] ) / 2 );
}
}
}
}
}
else
{
// Stereo target channel -----------------------------------------------
for ( j = 0; j < iNumClients; j++ )
{
// if channel gain is 1, avoid multiplication for speed optimization
if ( vecdGains[j] == static_cast<double> ( 1.0 ) )
{
if ( vecNumAudioChannels[j] == 1 )
{
// mono: copy same mono data in both out stereo audio channels
for ( i = 0, k = 0; i < SYSTEM_FRAME_SIZE_SAMPLES; i++, k += 2 )
{
// left channel
vecsOutData[k] =
Double2Short ( vecsOutData[k] + vecvecsData[j][i] );
// right channel
vecsOutData[k + 1] =
Double2Short ( vecsOutData[k + 1] + vecvecsData[j][i] );
}
}
else
{
// stereo
for ( i = 0; i < iNumOutSamples; i++ )
{
vecsOutData[i] =
Double2Short ( vecsOutData[i] + vecvecsData[j][i] );
}
}
}
else
{
if ( vecNumAudioChannels[j] == 1 )
{
// mono: copy same mono data in both out stereo audio channels
for ( i = 0, k = 0; i < SYSTEM_FRAME_SIZE_SAMPLES; i++, k += 2 )
{
// left channel
vecsOutData[k] = Double2Short (
vecsOutData[k] + vecvecsData[j][i] * vecdGains[j] );
// right channel
vecsOutData[k + 1] = Double2Short (
vecsOutData[k + 1] + vecvecsData[j][i] * vecdGains[j] );
}
}
else
{
// stereo
for ( i = 0; i < iNumOutSamples; i++ )
{
vecsOutData[i] =
Double2Short ( vecsOutData[i] +
vecvecsData[j][i] * vecdGains[j] );
}
}
}
}
}
return vecsOutData;
}
CVector<CChannelInfo> CServer::CreateChannelList()
{
CVector<CChannelInfo> vecChanInfo ( 0 );
// look for free channels
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
// append channel ID, IP address and channel name to storing vectors
vecChanInfo.Add ( CChannelInfo (
i, // ID
vecChannels[i].GetAddress().InetAddr.toIPv4Address(), // IP address
vecChannels[i].GetChanInfo() ) );
}
}
return vecChanInfo;
}
void CServer::CreateAndSendChanListForAllConChannels()
{
// create channel list
CVector<CChannelInfo> vecChanInfo ( CreateChannelList() );
// now send connected channels list to all connected clients
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
// send message
// #### COMPATIBILITY OLD VERSION, TO BE REMOVED ####
vecChannels[i].CreateConClientListNameMes ( vecChanInfo );
vecChannels[i].CreateConClientListMes ( vecChanInfo );
}
}
// create status HTML file if enabled
if ( bWriteStatusHTMLFile )
{
WriteHTMLChannelList();
}
}
void CServer::CreateAndSendChanListForThisChan ( const int iCurChanID )
{
// create channel list
CVector<CChannelInfo> vecChanInfo ( CreateChannelList() );
// now send connected channels list to the channel with the ID "iCurChanID"
// #### COMPATIBILITY OLD VERSION, TO BE REMOVED ####
vecChannels[iCurChanID].CreateConClientListNameMes ( vecChanInfo );
vecChannels[iCurChanID].CreateConClientListMes ( vecChanInfo );
}
void CServer::CreateAndSendChatTextForAllConChannels ( const int iCurChanID,
const QString& strChatText )
{
// Create message which is sent to all connected clients -------------------
// get client name, if name is empty, use IP address instead
QString ChanName = vecChannels[iCurChanID].GetName();
if ( ChanName.isEmpty() )
{
// convert IP address to text and show it
ChanName = vecChannels[iCurChanID].GetAddress().
toString ( CHostAddress::SM_IP_NO_LAST_BYTE );
}
// add time and name of the client at the beginning of the message text and
// use different colors
QString sCurColor = vstrChatColors[iCurChanID % vstrChatColors.Size()];
const QString strActualMessageText =
"<font color=""" + sCurColor + """>(" +
QTime::currentTime().toString ( "hh:mm:ss AP" ) + ") <b>" + ChanName +
"</b></font> " + strChatText;
// Send chat text to all connected clients ---------------------------------
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
// send message
vecChannels[i].CreateChatTextMes ( strActualMessageText );
}
}
}
int CServer::GetFreeChan()
{
// look for a free channel
for ( int i = 0; i < iNumChannels; i++ )
{
if ( !vecChannels[i].IsConnected() )
{
return i;
}
}
// no free channel found, return invalid ID
return INVALID_CHANNEL_ID;
}
int CServer::FindChannel ( const CHostAddress& InetAddr )
{
// look for a channel with the given internet address
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].GetAddress() == InetAddr )
{
return i;
}
}
// no free channel found, return invalid ID
return INVALID_CHANNEL_ID;
}
int CServer::GetNumberOfConnectedClients()
{
int iNumConnClients = 0;
// check all possible channels for connection status
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
// this channel is connected, increment counter
iNumConnClients += 1;
}
}
return iNumConnClients;
}
int CServer::CheckAddr ( const CHostAddress& Addr )
{
CHostAddress InetAddr;
// check for all possible channels if IP is already in use
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
if ( vecChannels[i].GetAddress ( InetAddr ) )
{
// IP found, return channel number
if ( InetAddr == Addr )
{
return i;
}
}
}
}
// IP not found, return invalid ID
return INVALID_CHANNEL_ID;
}
bool CServer::PutData ( const CVector<uint8_t>& vecbyRecBuf,
const int iNumBytesRead,
const CHostAddress& HostAdr )
{
bool bChanOK = true; // init with ok, might be overwritten
bool bNewChannelReserved = false;
bool bIsNotEvaluatedProtocolMessage = false;
Mutex.lock();
{
// Get channel ID ------------------------------------------------------
// check address
int iCurChanID = CheckAddr ( HostAdr );
if ( iCurChanID == INVALID_CHANNEL_ID )
{
// this is a new client, we then first check if this is a connection
// less message before we create a new official channel
if ( ConnLessProtocol.ParseConnectionLessMessageWithFrame ( vecbyRecBuf,
iNumBytesRead,
HostAdr ) )
{
// a new client is calling, look for free channel
iCurChanID = GetFreeChan();
if ( iCurChanID != INVALID_CHANNEL_ID )
{
// initialize current channel by storing the calling host
// address
vecChannels[iCurChanID].SetAddress ( HostAdr );
// reset channel info
vecChannels[iCurChanID].ResetInfo();
// reset the channel gains of current channel, at the same
// time reset gains of this channel ID for all other channels
for ( int i = 0; i < iNumChannels; i++ )
{
vecChannels[iCurChanID].SetGain ( i, (double) 1.0 );
// other channels (we do not distinguish the case if
// i == iCurChanID for simplicity)
vecChannels[i].SetGain ( iCurChanID, (double) 1.0 );
}
// set flag for new reserved channel
bNewChannelReserved = true;
}
else
{
// no free channel available
bChanOK = false;
// create and send "server full" message
ConnLessProtocol.CreateCLServerFullMes ( HostAdr );
}
}
else
{
// this was a connection less protocol message, return according
// state
bChanOK = false;
}
}
// Put received data in jitter buffer ----------------------------------
if ( bChanOK )
{
// put packet in socket buffer
switch ( vecChannels[iCurChanID].PutData ( vecbyRecBuf, iNumBytesRead ) )
{
case PS_AUDIO_OK:
PostWinMessage ( MS_JIT_BUF_PUT, MUL_COL_LED_GREEN, iCurChanID );
break;
case PS_AUDIO_ERR:
PostWinMessage ( MS_JIT_BUF_PUT, MUL_COL_LED_RED, iCurChanID );
break;
case PS_PROT_ERR:
PostWinMessage ( MS_JIT_BUF_PUT, MUL_COL_LED_YELLOW, iCurChanID );
break;
case PS_PROT_OK_MESS_NOT_EVALUATED:
bIsNotEvaluatedProtocolMessage = true; // set flag
break;
case PS_GEN_ERROR:
case PS_PROT_OK:
// for these cases, do nothing
break;
}
}
// act on new channel connection
if ( bNewChannelReserved && ( !bIsNotEvaluatedProtocolMessage ) )
{
// logging of new connected channel
Logging.AddNewConnection ( HostAdr.InetAddr );
// A new client connected to the server, the channel list
// at all clients have to be updated. This is done by sending
// a channel name request to the client which causes a channel
// name message to be transmitted to the server. If the server
// receives this message, the channel list will be automatically
// updated (implicitely).
// To make sure the protocol message is transmitted, the channel
// first has to be marked as connected.
//
// Usually it is not required to send the channel list to the
// client currently connecting since it automatically requests
// the channel list on a new connection (as a result, he will
// usually get the list twice which has no impact on functionality
// but will only increase the network load a tiny little bit). But
// in case the client thinks he is still connected but the server
// was restartet, it is important that we send the channel list
// at this place.
vecChannels[iCurChanID].ResetTimeOutCounter();
vecChannels[iCurChanID].CreateReqChanInfoMes();
// COMPATIBILITY ISSUE
// since old versions of the software did not implement the channel name
// request message, we have to explicitely send the channel list here
CreateAndSendChanListForAllConChannels();
// send welcome message (if enabled)
if ( !strWelcomeMessage.isEmpty() )
{
// create formated server welcome message and send it just to
// the client which just connected to the server
const QString strWelcomeMessageFormated =
"<b>Server Welcome Message:</b> " + strWelcomeMessage;
vecChannels[iCurChanID].CreateChatTextMes ( strWelcomeMessageFormated );
}
}
}
Mutex.unlock();
// we do not want the server to be started on a protocol message but only on
// an audio packet -> consider "bIsNotEvaluatedProtocolMessage", too
return bChanOK && ( !bIsNotEvaluatedProtocolMessage );
}
void CServer::GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
CVector<QString>& vecsName,
CVector<int>& veciJitBufNumFrames,
CVector<int>& veciNetwFrameSizeFact )
{
CHostAddress InetAddr;
// init return values
vecHostAddresses.Init ( iNumChannels );
vecsName.Init ( iNumChannels );
veciJitBufNumFrames.Init ( iNumChannels );
veciNetwFrameSizeFact.Init ( iNumChannels );
// check all possible channels
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].GetAddress ( InetAddr ) )
{
// get requested data
vecHostAddresses[i] = InetAddr;
vecsName[i] = vecChannels[i].GetName();
veciJitBufNumFrames[i] = vecChannels[i].GetSockBufNumFrames();
veciNetwFrameSizeFact[i] = vecChannels[i].GetNetwFrameSizeFact();
}
}
}
void CServer::StartStatusHTMLFileWriting ( const QString& strNewFileName,
const QString& strNewServerNameWithPort )
{
// set important parameters
strServerHTMLFileListName = strNewFileName;
strServerNameWithPort = strNewServerNameWithPort;
// set flag
bWriteStatusHTMLFile = true;
// write initial file
WriteHTMLChannelList();
}
void CServer::WriteHTMLChannelList()
{
// create channel list
CVector<CChannelInfo> vecChanInfo ( CreateChannelList() );
// prepare file and stream
QFile serverFileListFile ( strServerHTMLFileListName );
if ( !serverFileListFile.open ( QIODevice::WriteOnly | QIODevice::Text ) )
{
return;
}
QTextStream streamFileOut ( &serverFileListFile );
streamFileOut << strServerNameWithPort << endl << "<ul>" << endl;
// get the number of connected clients
int iNumConnClients = 0;
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
iNumConnClients++;
}
}
// depending on number of connected clients write list
if ( iNumConnClients == 0 )
{
// no clients are connected -> empty server
streamFileOut << " No client connected" << endl;
}
else
{
// write entry for each connected client
for ( int i = 0; i < iNumChannels; i++ )
{
if ( vecChannels[i].IsConnected() )
{
QString strCurChanName = vecChannels[i].GetName();
// if text is empty, show IP address instead
if ( strCurChanName.isEmpty() )
{
// convert IP address to text and show it, remove last
// digits
strCurChanName = vecChannels[i].GetAddress().
toString ( CHostAddress::SM_IP_NO_LAST_BYTE );
}
streamFileOut << " <li>" << strCurChanName << "</li>" << endl;
}
}
}
// finish list
streamFileOut << "</ul>" << endl;
}
void CServer::customEvent ( QEvent* pEvent )
{
if ( pEvent->type() == QEvent::User + 11 )
{
const int iMessType = ( (CCustomEvent*) pEvent )->iMessType;
switch ( iMessType )
{
case MS_PACKET_RECEIVED:
// wake up the server if a packet was received
// if the server is still running, the call to Start() will have
// no effect
Start();
break;
}
}
}