Initial Commit

Assets/Oculus/Platform/Scripts/MicrophoneInput.cs

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+//This file is deprecated.  Use the high level voip system instead:
+// https://developer.oculus.com/documentation/unity/ps-voip/
+//
+// NOTE for android developers: The existence of UnityEngine.Microphone causes Unity to insert the
+// android.permission.RECORD_AUDIO permission into the AndroidManifest.xml generated at build time
+
+#if OVR_PLATFORM_USE_MICROPHONE
+using UnityEngine;
+using System.Collections.Generic;
+
+namespace Oculus.Platform
+{
+
+  public class MicrophoneInput : IMicrophone
+  {
+    AudioClip microphoneClip;
+    int lastMicrophoneSample;
+    int micBufferSizeSamples;
+
+    private Dictionary<int, float[]> micSampleBuffers;
+
+    public MicrophoneInput()
+    {
+      int bufferLenSeconds = 1; //minimum size unity allows
+      int inputFreq = 48000; //this frequency is fixed throughout the voip system atm
+      microphoneClip = Microphone.Start(null, true, bufferLenSeconds, inputFreq);
+      micBufferSizeSamples = bufferLenSeconds * inputFreq;
+
+      micSampleBuffers = new Dictionary<int, float[]>();
+    }
+
+    public void Start()
+    {
+
+    }
+
+    public void Stop()
+    {
+    }
+
+    public float[] Update()
+    {
+      int pos = Microphone.GetPosition(null);
+      int copySize = 0;
+      if (pos < lastMicrophoneSample)
+      {
+        int endOfBufferSize = micBufferSizeSamples - lastMicrophoneSample;
+        copySize = endOfBufferSize + pos;
+      }
+      else
+      {
+        copySize = pos - lastMicrophoneSample;
+      }
+
+      if (copySize == 0) {
+        return null;
+      }
+
+      float[] samples;
+      if (!micSampleBuffers.TryGetValue(copySize, out samples))
+      {
+        samples = new float[copySize];
+        micSampleBuffers[copySize] = samples;
+      }
+
+      microphoneClip.GetData(samples, lastMicrophoneSample);
+      lastMicrophoneSample = pos;
+      return samples;
+
+    }
+  }
+}
+#endif