eeva/jamulus
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

implemented auto output settings for server depending on maximum upload rate, bug fix in server, some code cleanup, new entry in server dialog table

Browse Source
This commit is contained in:
Volker Fischer 2009-03-10 10:47:55 +00:00
parent 4220b492d6
commit c61b9d593a
7 changed files with 174 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

126
src/channel.cpp
View File

@ -29,7 +29,8 @@
* CChannelSet *
\******************************************************************************/
CChannelSet::CChannelSet ( const bool bForceLowUploadRate ) :
bWriteStatusHTMLFile ( false )
bWriteStatusHTMLFile ( false ),
iUploadRateLimit ( DEF_MAX_UPLOAD_RATE_KBPS )
{
// enable all channels and set server flag
for ( int i = 0; i < USED_NUM_CHANNELS; i++ )
@ -244,6 +245,75 @@ int CChannelSet::GetFreeChan()
return INVALID_CHANNEL_ID;
}
void CChannelSet::SetOutputParameters()
{
// The strategy is as follows: Change the parameters for each channel
// until the total upload rate is lower than the limit. We first set the
// audio compression from None to MS-ADPCM for each channel and if this
// is not enough, we start to increase the buffer size factor out.
bool bUploadRateIsBelowLimit = false;
const int iNumTrials = 4;
EAudComprType eCurAudComprType;
int iCurBlockSizeFact;
for ( int iCurTrialIdx = 0; iCurTrialIdx < iNumTrials; iCurTrialIdx++ )
{
switch ( iCurTrialIdx )
{
case 0:
// highest data rate
eCurAudComprType = CT_NONE;
iCurBlockSizeFact = 1;
break;
case 1:
// using other audio compression gives most reduction
eCurAudComprType = CT_MSADPCM;
iCurBlockSizeFact = 1;
break;
case 2:
// trying to use larger block size factor to further reduce rate
eCurAudComprType = CT_MSADPCM;
iCurBlockSizeFact = 2;
break;
case 3:
// trying to use larger block size factor to further reduce rate
eCurAudComprType = CT_MSADPCM;
iCurBlockSizeFact = 3;
break;
}
int iCurCh = 0;
while ( ( iCurCh < USED_NUM_CHANNELS ) && ( !bUploadRateIsBelowLimit ) )
{
if ( vecChannels[iCurCh].IsConnected() )
{
// set new parameters
vecChannels[iCurCh].SetNetwBufSizeFactOut ( iCurBlockSizeFact );
vecChannels[iCurCh].SetAudioCompressionOut ( eCurAudComprType );
// calculate and check total upload rate
int iTotalUploadRate = 0;
for ( int j = 0; j < USED_NUM_CHANNELS; j++ )
{
if ( vecChannels[j].IsConnected() )
{
// accumulate the upload rates from all channels
iTotalUploadRate += vecChannels[j].GetUploadRateKbps();
}
}
bUploadRateIsBelowLimit = ( iTotalUploadRate <= iUploadRateLimit );
}
// next channel
iCurCh++;
}
}
}
int CChannelSet::CheckAddr ( const CHostAddress& Addr )
{
CHostAddress InetAddr;
@ -251,12 +321,15 @@ int CChannelSet::CheckAddr ( const CHostAddress& Addr )
// check for all possible channels if IP is already in use
for ( int i = 0; i < USED_NUM_CHANNELS; i++ )
{
if ( vecChannels[i].GetAddress ( InetAddr ) )
if ( vecChannels[i].IsConnected() )
{
// IP found, return channel number
if ( InetAddr == Addr )
if ( vecChannels[i].GetAddress ( InetAddr ) )
{
return i;
// IP found, return channel number
if ( InetAddr == Addr )
{
return i;
}
}
}
}
@ -348,6 +421,9 @@ bAudioOK = true;
// requested
if ( bNewChannelReserved && bAudioOK )
{
// update output network parameters for all connected clients
SetOutputParameters();
// send message about new channel
emit ChannelConnected ( HostAdr );
@ -439,9 +515,12 @@ void CChannelSet::GetBlockAllConC ( CVector<int>& vecChanID,
}
}
// create channel list message if requested
// a channel is now disconnected, take action on it
if ( bChannelIsNowDisconnected )
{
// update output network parameters for all connected clients
SetOutputParameters();
// update channel list for all currently connected clients
CreateAndSendChanListForAllConChannels();
}
@ -449,10 +528,11 @@ void CChannelSet::GetBlockAllConC ( CVector<int>& vecChanID,
Mutex.unlock(); // release mutex
}
void CChannelSet::GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
CVector<QString>& vecsName,
CVector<int>& veciJitBufSize,
CVector<int>& veciNetwOutBlSiFact )
void CChannelSet::GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
CVector<QString>& vecsName,
CVector<int>& veciJitBufSize,
CVector<int>& veciNetwOutBlSiFact,
CVector<EAudComprType>& veceAudComprType )
{
CHostAddress InetAddr;
@ -461,6 +541,7 @@ void CChannelSet::GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
vecsName.Init ( USED_NUM_CHANNELS );
veciJitBufSize.Init ( USED_NUM_CHANNELS );
veciNetwOutBlSiFact.Init ( USED_NUM_CHANNELS );
veceAudComprType.Init ( USED_NUM_CHANNELS );
// check all possible channels
for ( int i = 0; i < USED_NUM_CHANNELS; i++ )
@ -472,6 +553,7 @@ void CChannelSet::GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
vecsName[i] = vecChannels[i].GetName();
veciJitBufSize[i] = vecChannels[i].GetSockBufSize();
veciNetwOutBlSiFact[i] = vecChannels[i].GetNetwBufSizeFactOut();
veceAudComprType[i] = vecChannels[i].GetAudioCompressionOut();
}
}
}
@ -948,7 +1030,6 @@ EPutDataStat CChannel::PutData ( const CVector<unsigned char>& vecbyData,
bool bIsAudioPacket = false;
bool bNewConnection = false;
bool bReinitializeIn = false;
bool bReinitializeOut = false;
// intermediate storage for new parameters
int iNewAudioBlockSize;
@ -996,35 +1077,18 @@ EPutDataStat CChannel::PutData ( const CVector<unsigned char>& vecbyData,
{
bReinitializeIn = true;
}
// in case of a server channel, use the same audio
// compression for output as for the input
if ( bIsServer )
{
if ( GetAudioCompressionOut() != eNewAudComprType )
{
bReinitializeOut = true;
}
}
}
}
Mutex.unlock();
// actual initialization calls have to be made
// outside the mutex region since they internally
// use the same mutex, too
// actual initialization call has to be made
// outside the mutex region since it internally
// usees the same mutex, too
if ( bReinitializeIn )
{
// re-initialize to new value
SetAudioBlockSizeAndComprIn (
iNewAudioBlockSize, eNewAudComprType );
}
if ( bReinitializeOut )
{
SetAudioCompressionOut ( eNewAudComprType );
}
}

6
src/channel.h
View File

@ -247,7 +247,8 @@ public:
void GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
CVector<QString>& vecsName,
CVector<int>& veciJitBufSize,
CVector<int>& veciNetwOutBlSiFact );
CVector<int>& veciNetwOutBlSiFact,
CVector<EAudComprType>& veceAudComprType );
// access functions for actual channels
bool IsConnected ( const int iChanNum )
@ -270,6 +271,7 @@ protected:
void CreateAndSendChanListForThisChan ( const int iCurChanID );
void CreateAndSendChatTextForAllConChannels ( const int iCurChanID, const QString& strChatText );
void WriteHTMLChannelList();
void SetOutputParameters();
/* do not use the vector class since CChannel does not have appropriate
copy constructor/operator */
@ -278,6 +280,8 @@ protected:
CVector<QString> vstrChatColors;
int iUploadRateLimit;
// HTML file server status
bool bWriteStatusHTMLFile;
QString strServerHTMLFileListName;

74
src/client.cpp
View File

@ -432,56 +432,52 @@ void CClient::UpdateSocketBufferSize()
// completely filled
const double dHysteresis = 0.3;
// it seems that it is better to update the jitter buffer as soon as possible
// even if the value is not optimal right from the beginning
if ( 1 ) // previously -> CycleTimeVariance.IsInitialized()
{
// calculate current buffer setting
// calculate current buffer setting
// TODO 2* seems not give optimal results, maybe use 3*?
// add .5 to "round up" -> ceil
// divide by MIN_SERVER_BLOCK_DURATION_MS because this is the size of
// one block in the jitter buffer
// add one block for actual network jitter
// Use worst case scenario: We add the block size of input and
// output. This is not required if the smaller block size is a
// multiple of the bigger size, but in the general case where
// the block sizes do not have this relation, we require to have
// a minimum buffer size of the sum of both sizes
const double dAudioBufferDurationMs =
( iMonoBlockSizeSam + Channel.GetAudioBlockSizeIn() ) * 1000 /
SYSTEM_SAMPLE_RATE;
// Use worst case scenario: We add the block size of input and
// output. This is not required if the smaller block size is a
// multiple of the bigger size, but in the general case where
// the block sizes do not have this relation, we require to have
// a minimum buffer size of the sum of both sizes
const double dAudioBufferDurationMs =
( iMonoBlockSizeSam + Channel.GetAudioBlockSizeIn() ) * 1000 /
SYSTEM_SAMPLE_RATE;
const double dEstCurBufSet = ( dAudioBufferDurationMs +
2 * ( CycleTimeVariance.GetStdDev() + 0.5 ) ) /
MIN_SERVER_BLOCK_DURATION_MS;
const double dEstCurBufSet = 1 + ( dAudioBufferDurationMs +
2 * ( CycleTimeVariance.GetStdDev() + 0.5 ) ) /
MIN_SERVER_BLOCK_DURATION_MS;
// upper/lower hysteresis decision
const int iUpperHystDec = LlconMath().round ( dEstCurBufSet - dHysteresis );
const int iLowerHystDec = LlconMath().round ( dEstCurBufSet + dHysteresis );
// upper/lower hysteresis decision
const int iUpperHystDec = LlconMath().round ( dEstCurBufSet - dHysteresis );
const int iLowerHystDec = LlconMath().round ( dEstCurBufSet + dHysteresis );
// if both decisions are equal than use the result
if ( iUpperHystDec == iLowerHystDec )
// if both decisions are equal than use the result
if ( iUpperHystDec == iLowerHystDec )
{
// set the socket buffer via the main window thread since somehow
// it gives a protocol deadlock if we call the SetSocketBufSize()
// function directly
PostWinMessage ( MS_SET_JIT_BUF_SIZE, iUpperHystDec );
}
else
{
// we are in the middle of the decision region, use
// previous setting for determing the new decision
if ( !( ( GetSockBufSize() == iUpperHystDec ) ||
( GetSockBufSize() == iLowerHystDec ) ) )
{
// set the socket buffer via the main window thread since somehow
// The old result is not near the new decision,
// use per definition the upper decision.
// Set the socket buffer via the main window thread since somehow
// it gives a protocol deadlock if we call the SetSocketBufSize()
// function directly
// function directly.
PostWinMessage ( MS_SET_JIT_BUF_SIZE, iUpperHystDec );
}
else
{
// we are in the middle of the decision region, use
// previous setting for determing the new decision
if ( !( ( GetSockBufSize() == iUpperHystDec ) ||
( GetSockBufSize() == iLowerHystDec ) ) )
{
// The old result is not near the new decision,
// use per definition the upper decision.
// Set the socket buffer via the main window thread since somehow
// it gives a protocol deadlock if we call the SetSocketBufSize()
// function directly.
PostWinMessage ( MS_SET_JIT_BUF_SIZE, iUpperHystDec );
}
}
}
}
}
}

3
src/global.h
View File

@ -88,6 +88,9 @@
// default network buffer size
#define DEF_NET_BUF_SIZE_NUM_BL 10 // number of blocks
// default maximum upload rate at server (typical DSL upload for good DSL)
#define DEF_MAX_UPLOAD_RATE_KBPS 800 // kbps
// maximum number of recognized sound cards installed in the system,
// definition for "no device"
#define MAX_NUMBER_SOUND_CARDS 10

27
src/llconserverdlg.cpp
View File

@ -45,7 +45,9 @@ CLlconServerDlg::CLlconServerDlg ( CServer* pNServP, QWidget* parent )
// set up list view for connected clients
ListViewClients->setColumnWidth ( 0, 170 );
ListViewClients->setColumnWidth ( 1, 150 );
ListViewClients->setColumnWidth ( 1, 130 );
ListViewClients->setColumnWidth ( 2, 40 );
ListViewClients->setColumnWidth ( 3, 40 );
ListViewClients->clear();
// insert items in reverse order because in Windows all of them are
@ -85,12 +87,13 @@ void CLlconServerDlg::OnTimer()
CVector<QString> vecsName;
CVector<int> veciJitBufSize;
CVector<int> veciNetwOutBlSiFact;
CVector<EAudComprType> veceAudComprType;
double dCurTiStdDev;
ListViewMutex.lock();
pServer->GetConCliParam ( vecHostAddresses, vecsName, veciJitBufSize,
veciNetwOutBlSiFact );
veciNetwOutBlSiFact, veceAudComprType );
// fill list with connected clients
for ( int i = 0; i < USED_NUM_CHANNELS; i++ )
@ -114,6 +117,26 @@ void CLlconServerDlg::OnTimer()
QString().setNum (
double ( veciNetwOutBlSiFact[i] * MIN_SERVER_BLOCK_DURATION_MS ), 'f', 2 ) );
// output audio compression
switch ( veceAudComprType[i] )
{
case CT_NONE:
vecpListViewItems[i]->setText ( 6, "None" );
break;
case CT_IMAADPCM:
vecpListViewItems[i]->setText ( 6, "IMA-ADPCM" );
break;
case CT_MSADPCM:
vecpListViewItems[i]->setText ( 6, "MS-ADPCM" );
break;
default:
vecpListViewItems[i]->setText ( 6, "Unknown" );
break;
}
vecpListViewItems[i]->setHidden ( false );
}
else

9
src/llconserverdlgbase.ui
View File

@ -5,8 +5,8 @@
<rect>
<x>0</x>
<y>0</y>
<width>767</width>
<height>280</height>
<width>765</width>
<height>315</height>
</rect>
</property>
<property name="windowTitle" >
@ -69,6 +69,11 @@
<string>Block Size Out</string>
</property>
</column>
<column>
<property name="text" >
<string>Audio Compr. Out</string>
</property>
</column>
</widget>
</item>
<item>

6
src/server.h
View File

@ -54,10 +54,12 @@ public:
void GetConCliParam ( CVector<CHostAddress>& vecHostAddresses,
CVector<QString>& vecsName,
CVector<int>& veciJitBufSize, CVector<int>& veciNetwOutBlSiFact )
CVector<int>& veciJitBufSize,
CVector<int>& veciNetwOutBlSiFact,
CVector<EAudComprType>& veceAudComprType )
{
ChannelSet.GetConCliParam ( vecHostAddresses, vecsName,
veciJitBufSize, veciNetwOutBlSiFact );
veciJitBufSize, veciNetwOutBlSiFact, veceAudComprType );
}
bool GetTimingStdDev ( double& dCurTiStdDev );