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+/************************************************************************************
+
+Filename : WavPlayer_OSX.h
+Content : An Apple OSX audio handler.
+Created : March 5, 2013
+Authors : Robotic Arm Software - Peter Hoff, Dan Goodman, Bryan Croteau
+
+Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+************************************************************************************/
+
+#ifndef OVR_WavPlayer_h
+#define OVR_WavPlayer_h
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <AudioToolbox/AudioQueue.h>
+
+#define AUDIO_BUFFERS 4
+
+namespace OVR { namespace OvrPlatform { namespace OSX {
+
+typedef struct AQCallbackStruct
+{
+ AudioQueueRef Queue;
+ UInt32 FrameCount;
+ AudioQueueBufferRef Buffers[AUDIO_BUFFERS];
+ AudioStreamBasicDescription DataFormat;
+ UInt32 PlayPtr;
+ UInt32 SampleLen;
+ unsigned char* PCMBuffer;
+} AQCallbackStruct;
+
+class WavPlayer
+{
+public:
+ WavPlayer(const char* fileName);
+ int PlayAudio();
+private:
+ bool isDataChunk(unsigned char* buffer, int index);
+ int getWord(unsigned char* buffer, int index);
+ short getHalf(unsigned char* buffer, int index);
+ void *LoadPCM(const char *filename, unsigned long *len);
+ int PlayBuffer(void *pcm, unsigned long len);
+ static void aqBufferCallback(void *in, AudioQueueRef inQ, AudioQueueBufferRef outQB);
+
+ short AudioFormat;
+ short NumChannels;
+ int SampleRate;
+ int ByteRate;
+ short BlockAlign;
+ short BitsPerSample;
+ const char* FileName;
+};
+
+}}}
+
+#endif