added server side audio mixer jitter stats

assignment-client/src/audio/AudioMixer.cpp

@@ -424,6 +424,19 @@ void AudioMixer::sendStatsPacket() {
     } else {
         statsObject["average_mixes_per_listener"] = 0.0;
     }
+
+    // add stats for each listerner    
+    NodeList* nodeList = NodeList::getInstance();
+    int clientNumber = 0;
+    foreach (const SharedNodePointer& node, nodeList->getNodeHash()) {
+        clientNumber++;
+        AudioMixerClientData* clientData = static_cast<AudioMixerClientData*>(node->getLinkedData());
+        if (clientData) {
+            QString property = "jitterStats." + QString::number(clientNumber);
+            statsObject[qPrintable(property)] = clientData->getJitterBufferStats();
+        }
+    }
+    
     
     ThreadedAssignment::addPacketStatsAndSendStatsPacket(statsObject);
     

assignment-client/src/audio/AudioMixerClientData.cpp

@@ -138,3 +138,26 @@ void AudioMixerClientData::pushBuffersAfterFrameSend() {
         i++;
     }
 }
+
+QString AudioMixerClientData::getJitterBufferStats() const {
+    QString result;
+    AvatarAudioRingBuffer* avatarRingBuffer = getAvatarAudioRingBuffer();
+    if (avatarRingBuffer) {
+        int desiredJitterBuffer = avatarRingBuffer->getDesiredJitterBufferFrames();
+        int currentJitterBuffer = avatarRingBuffer->getCurrentJitterBufferFrames();
+        result += "mic.desired:" + QString::number(desiredJitterBuffer) + " current:" + QString::number(currentJitterBuffer);
+    } else {
+        result = "mic unknown";
+    }
+
+    for (int i = 0; i < _ringBuffers.size(); i++) {
+        if (_ringBuffers[i]->getType() == PositionalAudioRingBuffer::Injector) {
+            int desiredJitterBuffer = _ringBuffers[i]->getDesiredJitterBufferFrames();
+            int currentJitterBuffer = _ringBuffers[i]->getCurrentJitterBufferFrames();
+            result += "| injected["+QString::number(i)+"].desired:" 
+                    + QString::number(desiredJitterBuffer) + " current:" + QString::number(currentJitterBuffer);
+        }
+    }
+
+    return result;
+}

assignment-client/src/audio/AudioMixerClientData.h

@@ -29,6 +29,9 @@ public:
     int parseData(const QByteArray& packet);
     void checkBuffersBeforeFrameSend(AABox* checkSourceZone = NULL, AABox* listenerZone = NULL);
     void pushBuffersAfterFrameSend();
+
+    QString getJitterBufferStats() const;
+
 private:
     QList<PositionalAudioRingBuffer*> _ringBuffers;
 };

libraries/audio/src/PositionalAudioRingBuffer.h

@@ -77,6 +77,9 @@ public:
     
     int getSamplesPerFrame() const { return _isStereo ? NETWORK_BUFFER_LENGTH_SAMPLES_STEREO : NETWORK_BUFFER_LENGTH_SAMPLES_PER_CHANNEL; }
 
+    int getDesiredJitterBufferFrames() const { return _desiredJitterBufferFrames; }
+    int getCurrentJitterBufferFrames() const { return _currentJitterBufferFrames; }
+
 protected:
     // disallow copying of PositionalAudioRingBuffer objects
     PositionalAudioRingBuffer(const PositionalAudioRingBuffer&);