Merge pull request #3094 from wangyix/seqNumberStats

Fixed bugs and improved overflow handling in AudioRingBuffer; Added audio stream stats packets; Added seq numbers and tracking to audio packets;

Brad Hefta-Gaub committed 12 years ago

Commit df51d262 parents a88c92e 99fd1c736 files · +1304 −343Browse files

Showing the changes to libraries/script-engine/src/ScriptEngine.cpp (1 of 36 files). Show all

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libraries/script-engine/src/ScriptEngine.cpp+22−2

                         _numAvatarSoundSentBytes = 0;
                     }
                 }
                 QByteArray audioPacket = byteArrayWithPopulatedHeader(silentFrame
                                                                       ? PacketTypeSilentAudioFrame
                                                                       : PacketTypeMicrophoneAudioNoEcho);
                 QDataStream packetStream(&audioPacket, QIODevice::Append);
+                // pack a placeholder value for sequence number for now, will be packed when destination node is known
+                int numPreSequenceNumberBytes = audioPacket.size();
+                packetStream << (quint16)0;
                 // use the orientation and position of this avatar for the source of this audio
                 packetStream.writeRawData(reinterpret_cast<const char*>(&_avatarData->getPosition()), sizeof(glm::vec3));
                 glm::quat headOrientation = _avatarData->getHeadOrientation();
                                               numAvailableSamples * sizeof(int16_t));
                 }
-                nodeList->broadcastToNodes(audioPacket, NodeSet() << NodeType::AudioMixer);
+                // write audio packet to AudioMixer nodes
+                NodeList* nodeList = NodeList::getInstance();
+                foreach(const SharedNodePointer& node, nodeList->getNodeHash()) {
+                    // only send to nodes of type AudioMixer
+                    if (node->getType() == NodeType::AudioMixer) {
+                        // pack sequence number
+                        quint16 sequence = _outgoingScriptAudioSequenceNumbers[node->getUUID()]++;
+                        memcpy(audioPacket.data() + numPreSequenceNumberBytes, &sequence, sizeof(quint16));
+                        // send audio packet
+                        nodeList->writeDatagram(audioPacket, node);
+                    }
+                }
             }
         }
         _engine.clearExceptions();
     }
 }
+void ScriptEngine::nodeKilled(SharedNodePointer node) {
+    _outgoingScriptAudioSequenceNumbers.remove(node->getUUID());
+}