GstBridgeMixer.cxx

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#include "GstBridgeMixer.hxx"
#include "ReconSubsystem.hxx"
#include "Participant.hxx"
#include "RemoteParticipant.hxx"
#include "Conversation.hxx"
 
#include <rutil/Log.hxx>
#include <rutil/Logger.hxx>
 
#ifndef max
#define max(x,y) (((x)>(y))?(x):(y))
#endif
 
using namespace recon;
using namespace resip;
using namespace std;
 
#define RESIPROCATE_SUBSYSTEM ReconSubsystem::RECON
 
GstBridgeMixer::GstBridgeMixer()
{
   // Set default to 0 gain for entire matrix
   memset(mMixMatrix, 0, sizeof(mMixMatrix));
}
 
GstBridgeMixer::~GstBridgeMixer()
{
}
 
void
GstBridgeMixer::calculateMixWeightsForParticipant(Participant* participant)
{
   int bridgePort = participant->getConnectionPortOnBridge();
   GstBridgeGain inputBridgeWeights[DEFAULT_BRIDGE_MAX_IN_OUTPUTS];
 
   InfoLog( << "calculatingMixWeigthsForParticipant, handle=" << participant->getParticipantHandle() << ", bridgePort=" << bridgePort << ", hasInput=" << participant->hasInput() << ", hasOutput=" << participant->hasOutput());
 
   if(bridgePort != -1)
   {
      // Default All Inputs/Outputs to 0, then calculate non-zero inputs/outputs
      for(int i = 0; i < DEFAULT_BRIDGE_MAX_IN_OUTPUTS; i++)
      {
         // If we have input capabilities, then clear out other participants outputs to us
         if (participant->hasInput())
         {
            mMixMatrix[bridgePort][i] = 0;
         }
         // If we have output capabilites, then clear out other participants inputs from us
         if (participant->hasOutput())
         {
            mMixMatrix[i][bridgePort] = 0;
         }
         inputBridgeWeights[i] = 0;
      }
 
      // Walk through all Conversations this Participant is in
      const Participant::ConversationMap& partConvs = participant->getConversations();
      
      Participant::ConversationMap::const_iterator it1;
      for(it1 = partConvs.begin(); it1 != partConvs.end(); it1++)
      {
         //InfoLog( << "calculateMixWeightsForParticipant: part=" << participant->getParticipantHandle() << ", conv=" << it1->second->getHandle());
         // Walk through each participant in this Conversation
         Conversation::ParticipantMap& convParts = it1->second->getParticipants();
         Conversation::ParticipantMap::iterator it2;
         it2 = convParts.find(participant->getParticipantHandle());  // Get the participants gain settings in this conversation            
         unsigned int participantOutputGain = 0;
         unsigned int participantInputGain = 0;
         if(it2 != convParts.end()) // if we are in the middle of removing a participant from a conversation then they may not exist in the conversation list any more
         {
            participantOutputGain = it2->second.getOutputGain();
            participantInputGain = it2->second.getInputGain();
         }
         for(it2 = convParts.begin(); it2 != convParts.end(); it2++)
         {
            //InfoLog( << "calculateMixWeightsForParticipant: part=" << participant->getParticipantHandle() << ", conv=" << it1->second->getHandle() << ", otherpart=" << it2->second.getParticipant()->getParticipantHandle() << ", hasInput=" << it2->second.getParticipant()->hasInput() << ", hasOutput=" << it2->second.getParticipant()->hasOutput());
            // If we found a participant that is not ourself
            if(it2->second.getParticipant()->getParticipantHandle() != participant->getParticipantHandle())
            {
               int otherBridgePort = it2->second.getParticipant()->getConnectionPortOnBridge();
               //if (otherBridgePort != -1 && otherBridgePort != bridgePort)  // Note otherBridgePort can equal bridge port if multiple media participants of the same type exist
               if (otherBridgePort != -1)
               {
                  if (participant->hasInput() &&                  // Only look at outputs from other participants if we have an input,  and
                      it2->second.getParticipant()->hasOutput())  // Only look at other participant if it has an output
                  {
                     // Calculate the mixed output gain from the other participant to us
                     unsigned int outputGain = ((it2->second.getOutputGain() * participantInputGain) / 100) * 10;  // 10 factor is to bring inline with MrpBridgeWeight int type
                     mMixMatrix[bridgePort][otherBridgePort] = max((int)outputGain, mMixMatrix[bridgePort][otherBridgePort]);
                  }
 
                  if (participant->hasOutput() &&                // Only look at inputs to other participants if we have an output, and
                      it2->second.getParticipant()->hasInput())  // Only look at other participants that have an input and can accept our output
                  {
                     // Calculate the mixed input gain for the other participant
                     unsigned int inputGain = ((it2->second.getInputGain() * participantOutputGain) / 100) * 10;  // 10 factor is to bring inline with MrpBridgeWeight int type
                     inputBridgeWeights[otherBridgePort] = mMixMatrix[otherBridgePort][bridgePort] = max((int)inputGain, mMixMatrix[otherBridgePort][bridgePort]);
                  }
                  //InfoLog(<< "Setting mix level for bridge ports: " << bridgePort << " and " << otherBridgePort << ": outputGain=" << mMixMatrix[bridgePort][otherBridgePort]/10 << ", inputGain=" << inputBridgeWeights[otherBridgePort]/10);
               }
            }
         }
      }
 
      //outputBridgeMixWeights();
 
      // Apply new bridge weights
      if (participant->hasInput())
      {
         // Apply mix outputs for other participants if we have an input
         // FIXME Gst MprBridge::setMixWeightsForOutput(DEFAULT_BRIDGE_RESOURCE_NAME, *mMediaInterface.getMsgQ(), bridgePort, DEFAULT_BRIDGE_MAX_IN_OUTPUTS, mMixMatrix[bridgePort]);
      }
      if (participant->hasOutput())
      {
         // Apply mix inputs to other participants if we have an output
         // FIXME Gst MprBridge::setMixWeightsForInput(DEFAULT_BRIDGE_RESOURCE_NAME, *mMediaInterface.getMsgQ(), bridgePort, DEFAULT_BRIDGE_MAX_IN_OUTPUTS, inputBridgeWeights);
      }
   }   
}
 
void
GstBridgeMixer::outputBridgeMixWeights()
{
   int i;
   Data data;
   data = " ";
   for(i = 0; i < DEFAULT_BRIDGE_MAX_IN_OUTPUTS; i++)
   {
      if(i < 10)
      {
         data += "   " + Data(i);
      }
      else
      {
         data += "  " + Data(i);
      }
   }
   InfoLog( << data);
   
   data = "-";
   for(i = 0; i < DEFAULT_BRIDGE_MAX_IN_OUTPUTS; i++)
   {
      data += "----";
   }
   InfoLog( << data);
 
   for(i = 0; i < DEFAULT_BRIDGE_MAX_IN_OUTPUTS; i++)
   {
      if(i < 10)
      {
         data = Data(i) + " |";
      } 
      else
      {
         data = Data(i) + "|";
      }
      for(int j = 0; j < DEFAULT_BRIDGE_MAX_IN_OUTPUTS; j++)
      {
         if(mMixMatrix[i][j]/10 < 10)
         {
            data += " " + Data(mMixMatrix[i][j]/10) + "  ";
         }
         else if(mMixMatrix[i][j]/10 < 100)
         {
            data += Data(mMixMatrix[i][j]/10) + "  ";
         }
         else
         {
            data += Data(mMixMatrix[i][j]/10) + " ";
         }
      }
      InfoLog( << data);
   }
}
 
 
/* ====================================================================
 
 Copyright (c) 2022, Software Freedom Institute https://softwarefreedom.institute
 Copyright (c) 2022, Daniel Pocock https://danielpocock.com
 Copyright (c) 2021, SIP Spectrum, Inc. www.sipspectrum.com
 Copyright (c) 2007-2008, Plantronics, Inc.
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