fix code style issues introduced by contributed source code

src/audiomixerboard.cpp

@@ -39,7 +39,6 @@ CChannelFader::CChannelFader ( QWidget*     pNW,
     pLevelsBox                  = new QWidget           ( pFrame );
     plbrChannelLevel            = new CMultiColorLEDBar ( pLevelsBox );
     pFader                      = new QSlider           ( Qt::Vertical, pLevelsBox );
-
     pPan                        = new QSlider           ( Qt::Horizontal, pLevelsBox );
 
     pMuteSoloBox                = new QWidget           ( pFrame );
@@ -70,7 +69,6 @@ CChannelFader::CChannelFader ( QWidget*     pNW,
     pPan->setRange ( 0, AUD_MIX_PAN_MAX );
     pPan->setValue ( AUD_MIX_PAN_MAX / 2 );
 
-
     // setup fader tag label (black bold text which is centered)
     plblLabel->setTextFormat    ( Qt::PlainText );
     plblLabel->setAlignment     ( Qt::AlignHCenter | Qt::AlignVCenter );
@@ -127,7 +125,8 @@ CChannelFader::CChannelFader ( QWidget*     pNW,
     pFader->setAccessibleName ( tr ( "Local mix level setting of the current audio "
         "channel at the server" ) );
 
-    pPan->setWhatsThis ( "<b>" +  tr ( "Panning") + ":</b>" + tr ( "Sets the panning position from Left to Right of the channel. "
+    pPan->setWhatsThis ( "<b>" +  tr ( "Panning" ) + ":</b>" + tr (
+        "Sets the panning position from Left to Right of the channel. "
         "Works only in stero or preferably mono in/stereo out mode." ) );
     pPan->setAccessibleName ( tr ( "Local panning position of the current audio channel at the server" ) );
 
@@ -337,8 +336,7 @@ void CChannelFader::SendFaderLevelToServer ( const int iLevel )
 
 void CChannelFader::SendPanValueToServer ( const int iPan )
 {    
-    double dPan =  static_cast<double> ( iPan ) / AUD_MIX_PAN_MAX;
+    emit panValueChanged ( static_cast<double> ( iPan ) / AUD_MIX_PAN_MAX );
-    emit panValueChanged ( dPan );
 }
 
 void CChannelFader::OnMuteStateChanged ( int value )
@@ -839,7 +837,6 @@ void CAudioMixerBoard::UpdatePanValue ( const int    iChannelIdx,
     emit ChangeChanPan ( iChannelIdx, dValue );
 }
 
-
 void CAudioMixerBoard::StoreFaderSettings ( CChannelFader* pChanFader )
 {
     // if the fader was visible and the name is not empty, we store the old gain

src/channel.cpp

@@ -273,7 +273,8 @@ double CChannel::GetGain ( const int iChanID )
     }
 }
 
-void CChannel::SetPan(const int iChanID, const double dNewPan)
+void CChannel::SetPan ( const int    iChanID,
+                        const double dNewPan )
 {
     QMutexLocker locker ( &Mutex );
 

src/channel.h

@@ -197,7 +197,6 @@ protected:
 
     // mixer and effect settings
     CVector<double>   vecdGains;
-
     CVector<double>   vecdPannings;
 
     // network jitter-buffer

src/global.h

@@ -147,14 +147,10 @@ LED bar:      lbr
 // default network buffer size
 #define DEF_NET_BUF_SIZE_NUM_BL          10 // number of blocks
 
-// audio mixer fader maximum value
+// audio mixer fader and panning maximum value
 #define AUD_MIX_FADER_MAX                100
-
-
-// audio mixer panning maximum value
 #define AUD_MIX_PAN_MAX                  100
 
-
 // maximum number of recognized sound cards installed in the system,
 // definition for "no device"
 #define MAX_NUMBER_SOUND_CARDS           129 // e.g. 16 inputs, 8 outputs + default entry (MacOS)

src/protocol.cpp

@@ -805,6 +805,31 @@ void CProtocol::CreateChanGainMes ( const int iChanID, const double dGain )
     CreateAndSendMessage ( PROTMESSID_CHANNEL_GAIN, vecData );
 }
 
+bool CProtocol::EvaluateChanGainMes ( const CVector<uint8_t>& vecData )
+{
+    int iPos = 0; // init position pointer
+
+    // check size
+    if ( vecData.Size() != 3 )
+    {
+        return true; // return error code
+    }
+
+    // channel ID
+    const int iCurID = static_cast<int> ( GetValFromStream ( vecData, iPos, 1 ) );
+
+    // gain (read integer value)
+    const int iData = static_cast<int> ( GetValFromStream ( vecData, iPos, 2 ) );
+
+    // we convert the gain from integer to double with range 0..1
+    const double dNewGain = static_cast<double> ( iData ) / ( 1 << 15 );
+
+    // invoke message action
+    emit ChangeChanGain ( iCurID, dNewGain );
+
+    return false; // no error
+}
+
 void CProtocol::CreateChanPanMes ( const int iChanID, const double dPan )
 {
     CVector<uint8_t> vecData ( 3 ); // 3 bytes of data
@@ -822,33 +847,6 @@ void CProtocol::CreateChanPanMes(const int iChanID, const double dPan)
     CreateAndSendMessage ( PROTMESSID_CHANNEL_PAN, vecData );
 }
 
-bool CProtocol::EvaluateChanGainMes ( const CVector<uint8_t>& vecData )
-{
-    int iPos = 0; // init position pointer
-
-    // check size
-    if ( vecData.Size() != 3 )
-    {
-        return true; // return error code
-    }
-
-    // channel ID
-    const int iCurID =
-        static_cast<int> ( GetValFromStream ( vecData, iPos, 1 ) );
-
-    // gain (read integer value)
-    const int iData =
-        static_cast<int> ( GetValFromStream ( vecData, iPos, 2 ) );
-
-    // we convert the gain from integer to double with range 0..1
-    const double dNewGain = static_cast<double> ( iData ) / ( 1 << 15 );
-
-    // invoke message action
-    emit ChangeChanGain ( iCurID, dNewGain );
-
-    return false; // no error
-}
-
 bool CProtocol::EvaluateChanPanMes ( const CVector<uint8_t> &vecData )
 {
     int iPos = 0; // init position pointer
@@ -860,12 +858,10 @@ bool CProtocol::EvaluateChanPanMes(const CVector<uint8_t> &vecData)
     }
 
     // channel ID
-    const int iCurID =
+    const int iCurID = static_cast<int> ( GetValFromStream ( vecData, iPos, 1 ) );
-            static_cast<int> ( GetValFromStream ( vecData, iPos, 1 ) );
 
     // pan (read integer value)
-    const int iData =
+    const int iData = static_cast<int> ( GetValFromStream ( vecData, iPos, 2 ) );
-            static_cast<int> ( GetValFromStream ( vecData, iPos, 2 ) );
 
     // we convert the gain from integer to double with range 0..1
     const double dNewPan = static_cast<double> ( iData ) / ( 1 << 15 );

src/server.cpp

@@ -843,11 +843,12 @@ JitterMeas.Measure();
                 // "vecChanIDsCurConChan" to query the IDs of the currently
                 // connected channels
                 vecvecdGains[i][j] = vecChannels[iCurChanID].GetGain ( vecChanIDsCurConChan[j] );
+
                 // consider audio fade-in
                 vecvecdGains[i][j] *= vecChannels[vecChanIDsCurConChan[j]].GetFadeInGain();
 
                 // panning
-                vecvecdPannings[i][j] = vecChannels[iCurChanID].GetPan( vecChanIDsCurConChan[j] ); //((double)rand() / (double)(RAND_MAX)); //vecChannels[iCurChanID].GetGain ( vecChanIDsCurConChan[j] ); //TODO: GetPanning
+                vecvecdPannings[i][j] = vecChannels[iCurChanID].GetPan ( vecChanIDsCurConChan[j] );
             }
 
             // If the server frame size is smaller than the received OPUS frame size, we need a conversion
@@ -1154,10 +1155,11 @@ void CServer::ProcessData (const CVector<CVector<int16_t> >& vecvecsData,
             // get a reference to the audio data and gain of the current client
             const CVector<int16_t>& vecsData = vecvecsData[j];
             const double            dGain    = vecdGains[j];
+
+            // calculate pan coefficient, see http://write.flossmanuals.net/csound/b-panning-and-spatialization/ for better formula, if needed
             const double dPan      = vecdPannings[j];
             const double dPanCoefL = sqrt ( 1 - dPan ); // faster: ( 1 - dPan )
             const double dPanCoefR = sqrt ( dPan ); // ( dPan )
-            // see http://write.flossmanuals.net/csound/b-panning-and-spatialization/ for better formula, if needed
 
             // if channel gain is 1, avoid multiplication for speed optimization
             if ( dGain == static_cast<double> ( 1.0 ) )
@@ -1181,7 +1183,9 @@ void CServer::ProcessData (const CVector<CVector<int16_t> >& vecvecsData,
                     // stereo
                     for ( i = 0; i < ( 2 * iServerFrameSizeSamples ); i++ )
                     {
-                        double pan = (i%2==0) ? dPanCoefL : dPanCoefR;
+                        // get the correct pan value for the current channel (left or right)
+                        const double pan = ( i % 2 == 0 ) ? dPanCoefL : dPanCoefR;
+
                         vecsOutData[i] = Double2Short (
                             static_cast<double> ( vecsOutData[i] ) + vecsData[i] * pan );
                     }
@@ -1208,10 +1212,11 @@ void CServer::ProcessData (const CVector<CVector<int16_t> >& vecvecsData,
                     // stereo
                     for ( i = 0; i < ( 2 * iServerFrameSizeSamples ); i++ )
                     {
+                        // get the correct pan value for the current channel (left or right)
                         double pan = ( i % 2 == 0 ) ? dPanCoefL : dPanCoefR;
+
                         vecsOutData[i] = Double2Short (
                             vecsOutData[i] + vecsData[i] * dGain * pan );
-
                     }
                 }
             }