From bb201dfd8e9f1487b6b2825f8afbb3181958082a Mon Sep 17 00:00:00 2001
From: Stephen Birarda <commit@birarda.com>
Date: Thu, 30 May 2013 12:42:12 -0700
Subject: [PATCH] perform a test reverb effect

---
 audio-mixer/src/main.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/audio-mixer/src/main.cpp b/audio-mixer/src/main.cpp
index 982ebc526c..05a0dd1bb9 100644
--- a/audio-mixer/src/main.cpp
+++ b/audio-mixer/src/main.cpp
@@ -22,6 +22,8 @@
 #include <AgentTypes.h>
 #include <SharedUtil.h>
 #include <StdDev.h>
+#include <Stk.h>
+#include <FreeVerb.h>
 
 #include "AudioRingBuffer.h"
 #include "PacketHeaders.h"
@@ -104,6 +106,13 @@ int main(int argc, const char* argv[]) {
     
     int16_t clientSamples[BUFFER_LENGTH_SAMPLES_PER_CHANNEL * 2] = {};
     
+    // setup STK for the reverb effect    
+    stk::FreeVerb freeVerb;
+    freeVerb.setDamping(0.5f);
+    freeVerb.setRoomSize(0.5f);
+    freeVerb.setDamping(0.5f);
+    freeVerb.setWidth(0.5f);
+    
     gettimeofday(&startTime, NULL);
     
     while (true) {
@@ -255,6 +264,13 @@ int main(int argc, const char* argv[]) {
                     }
                 }
                 
+                // apply the FreeVerb to the clientSamples array
+                for (int s = 0; s < BUFFER_LENGTH_SAMPLES_PER_CHANNEL; s++) {
+                    clientSamples[s] = freeVerb.tick(clientSamples[s],
+                                                     clientSamples[s + BUFFER_LENGTH_SAMPLES_PER_CHANNEL]);
+                    clientSamples[s + BUFFER_LENGTH_SAMPLES_PER_CHANNEL] = freeVerb.lastOut(1);
+                }
+                
                 memcpy(clientPacket + 1, clientSamples, sizeof(clientSamples));
                 agentList->getAgentSocket()->send(agent->getPublicSocket(), clientPacket, BUFFER_LENGTH_BYTES + 1);
             }