send interface client position to audio mixer

domain/src/main.cpp

@@ -32,8 +32,6 @@
 #include "SharedUtil.h"
 
 const int DOMAIN_LISTEN_PORT = 40102;
-
-const int MAX_PACKET_SIZE = 1500;
 unsigned char packetData[MAX_PACKET_SIZE];
 
 const int LOGOFF_CHECK_INTERVAL = 5000;

interface/src/Audio.cpp

@@ -84,7 +84,25 @@ int audioCallback (const void *inputBuffer,
             audioMixerSocket.sin_family = AF_INET;
             audioMixerSocket.sin_addr.s_addr = data->mixerAddress;
             audioMixerSocket.sin_port = data->mixerPort;
-            data->audioSocket->send((sockaddr *)&audioMixerSocket, (void *)inputLeft, BUFFER_LENGTH_BYTES);
+            
+            int leadingBytes = 1 + (sizeof(float) * 3);
+            
+            // we need the amount of bytes in the buffer + 1 for type + 12 for 3 floats for position
+            unsigned char *dataPacket = new unsigned char[BUFFER_LENGTH_BYTES + leadingBytes];
+            
+            dataPacket[0] = 'I';
+            
+            // memcpy the three float positions
+            for (int p = 0; p < 3; p++) {
+                memcpy(dataPacket + 1 + (p * sizeof(float)), &data->sourcePosition[p], sizeof(float));
+            }
+            
+            // copy the audio data to the last 1024 bytes of the data packet
+            memcpy(dataPacket + leadingBytes, inputLeft, BUFFER_LENGTH_BYTES);
+            
+            data->audioSocket->send((sockaddr *)&audioMixerSocket, dataPacket, BUFFER_LENGTH_BYTES + leadingBytes);
+            
+            delete dataPacket;
         }
        
         //
@@ -236,6 +254,10 @@ void *receiveAudioViaUDP(void *args) {
     pthread_exit(0);
 }
 
+void Audio::setSourcePosition(glm::vec3 newPosition) {
+    audioData->sourcePosition = newPosition;
+}
+
 /**
  * Initialize portaudio and start an audio stream.
  * Should be called at the beginning of program exection.

interface/src/Audio.h

@@ -25,11 +25,12 @@ public:
     void getInputLoudness(float * lastLoudness, float * averageLoudness);
     void updateMixerParams(in_addr_t mixerAddress, in_port_t mixerPort);
     
+    void setSourcePosition(glm::vec3 position);
+    
     // terminates audio I/O
     bool terminate();
 private:    
     bool initialized;
-    
     AudioData *audioData;
     
     // protects constructor so that public init method is used

interface/src/AudioData.h

@@ -11,17 +11,22 @@
 
 #include <iostream>
 #include <stdint.h>
+#include <glm/glm.hpp>
 #include "AudioRingBuffer.h"
 #include "UDPSocket.h"
 
 class AudioData {
     public:
+        AudioData(int bufferLength);
+        ~AudioData();
         AudioRingBuffer *ringBuffer;
 
         UDPSocket *audioSocket;
     
         int16_t *samplesToQueue;
     
+        glm::vec3 sourcePosition;
+    
         // store current mixer address and port
         in_addr_t mixerAddress;
         in_port_t mixerPort;
@@ -34,9 +39,6 @@ class AudioData {
         
         float lastInputLoudness;
         float averagedInputLoudness;
-    
-        AudioData(int bufferLength);
-        ~AudioData();
 };
 
 #endif /* defined(__interface__AudioData__) */

interface/src/main.cpp

@@ -53,7 +53,6 @@ int simulate_on = 1;
 //  Network Socket and network constants
 //
 
-const int MAX_PACKET_SIZE = 1500;
 char DOMAIN_HOSTNAME[] = "highfidelity.below92.com";
 char DOMAIN_IP[100] = "";    //  IP Address will be used first if not empty string
 const int DOMAINSERVER_PORT = 40102;
@@ -513,6 +512,7 @@ void simulateHead(float frametime)
     myHead.setRenderYaw(myHead.getRenderYaw() + render_yaw_rate);
     myHead.setRenderPitch(render_pitch);
     myHead.setPos(glm::vec3(location[0], location[1], location[2]));
+    audio.setSourcePosition(glm::vec3(location[0], location[1], location[2]));
     
     //  Get audio loudness data from audio input device
     float loudness, averageLoudness;

mixer/src/main.cpp

@@ -16,12 +16,8 @@
 #include <AgentList.h>
 #include <SharedUtil.h>
 
-const int MAX_AGENTS = 1000;
-const int LOGOFF_CHECK_INTERVAL = 1000;
-
 const unsigned short MIXER_LISTEN_PORT = 55443;
 
-
 const float SAMPLE_RATE = 22050.0;
 const float BUFFER_SEND_INTERVAL_USECS = (BUFFER_LENGTH_SAMPLES/SAMPLE_RATE) * 1000000;
 
@@ -35,7 +31,6 @@ char DOMAIN_HOSTNAME[] = "highfidelity.below92.com";
 char DOMAIN_IP[100] = "";    //  IP Address will be re-set by lookup on startup
 const int DOMAINSERVER_PORT = 40102;
 
-const int MAX_SOURCE_BUFFERS = 20;
 
 AgentList agentList(MIXER_LISTEN_PORT);
 
@@ -182,7 +177,7 @@ int main(int argc, const char * argv[])
         printf("Using static domainserver IP: %s\n", DOMAIN_IP);
     }
 
-    int16_t *packetData = new int16_t[BUFFER_LENGTH_SAMPLES];
+    unsigned char *packetData = new unsigned char[MAX_PACKET_SIZE];
 
     pthread_t sendBufferThread;
     pthread_create(&sendBufferThread, NULL, sendBuffer, NULL);
@@ -191,9 +186,9 @@ int main(int argc, const char * argv[])
 
     while (true) {
         if(agentList.getAgentSocket().receive(agentAddress, packetData, &receivedBytes)) {
-            if (receivedBytes == BUFFER_LENGTH_BYTES) {
+            if (receivedBytes > BUFFER_LENGTH_BYTES) {
                 // add or update the existing interface agent
-                agentList.addOrUpdateAgent(agentAddress, agentAddress, 'I');
+                agentList.addOrUpdateAgent(agentAddress, agentAddress, packetData[0]);
                 agentList.updateAgentWithData(agentAddress, (void *)packetData, receivedBytes);
             }
         }

shared/src/AgentList.cpp

@@ -147,7 +147,7 @@ bool AgentList::addOrUpdateAgent(sockaddr *publicSocket, sockaddr *localSocket,
             // this is an audio mixer
             // for now that means we need to tell the audio class
             // to use the local socket information the domain server gave us
-            sockaddr_in *localSocketIn = (sockaddr_in *)localSocket;
+            sockaddr_in *localSocketIn = (sockaddr_in *)publicSocket;
             audioMixerSocketUpdate(localSocketIn->sin_addr.s_addr, localSocketIn->sin_port);
         }
         

shared/src/AgentList.h

@@ -14,6 +14,7 @@
 #include "Agent.h"
 #include "UDPSocket.h"
 
+const int MAX_PACKET_SIZE = 1500;
 const unsigned short AGENT_SOCKET_LISTEN_PORT = 40103;
 const int AGENT_SILENCE_THRESHOLD_USECS = 2 * 1000000;
 extern const char *SOLO_AGENT_TYPES_STRING;

shared/src/AudioRingBuffer.cpp

@@ -75,7 +75,19 @@ void AudioRingBuffer::setAddedToMix(bool added) {
 }
 
 void AudioRingBuffer::parseData(void *data, int size) {
-    int16_t *audioData = (int16_t *)data;
+    int16_t *audioDataStart = (int16_t *) data;
+    
+    if (size > BUFFER_LENGTH_BYTES) {
+        float position[3];
+        unsigned char *charData = (unsigned char *) data;
+        
+        for (int p = 0; p < 3; p ++) {
+            memcpy(&position[p], charData + 1 + (sizeof(float) * p), sizeof(float));
+        }
+        
+        audioDataStart = (int16_t *) charData + 1 + (sizeof(float) * 3);
+    }
+   
 
     if (endOfLastWrite == NULL) {
         endOfLastWrite = buffer;
@@ -85,7 +97,7 @@ void AudioRingBuffer::parseData(void *data, int size) {
         started = false;
     }
     
-    memcpy(endOfLastWrite, audioData, BUFFER_LENGTH_BYTES);
+    memcpy(endOfLastWrite, audioDataStart, BUFFER_LENGTH_BYTES);
     endOfLastWrite += BUFFER_LENGTH_SAMPLES;
     
     if (endOfLastWrite >= buffer + RING_BUFFER_SAMPLES) {

shared/src/UDPSocket.h

@@ -13,7 +13,7 @@
 #include <netinet/in.h>
 #include <netdb.h>
 
-#define MAX_BUFFER_LENGTH_BYTES 1024
+#define MAX_BUFFER_LENGTH_BYTES 1500
 
 class UDPSocket {    
     public: