- initial import

src/engine/audio/Audio_Helper.h

@@ -0,0 +1,78 @@
+/* Copyright(C) 2007-2014 VoIP objects (voipobjects.com)
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef __AUDIO_HELPER_H
+#define __AUDIO_HELPER_H
+
+#ifdef TARGET_WIN
+#include <EndpointVolume.h>
+#include <MMDeviceAPI.h>
+#if defined(_MSC_VER)
+# include <Functiondiscoverykeys_devpkey.h>
+#endif
+#endif
+
+#if defined(TARGET_OSX) || defined(TARGET_IOS)
+#   include <AudioUnit/AudioUnit.h>
+#   include <AudioToolbox/AudioConverter.h>
+#   include <AudioToolbox/AudioServices.h>
+#   include <mach/mach_time.h>
+#endif
+
+#include <vector>
+
+#include "Audio_Interface.h"
+
+namespace Audio
+{
+  class TimeSource
+  {
+  protected:
+#ifdef TARGET_WIN
+    LARGE_INTEGER mCounter;       /// Current value from QPC.
+    LARGE_INTEGER mFreq;          /// Current frequency from QPC.
+#endif
+
+#if defined(TARGET_OSX) || defined(TARGET_IOS)
+    uint64_t mTime;
+    struct mach_timebase_info mTimebase;
+    double mRatio;
+#endif
+
+    unsigned mQuantTime;          /// Used time quants length in milliseconds.
+    unsigned mDepthTime;          /// Number of available time quants.
+    unsigned mTailTime;           /// Not-accounted milliseconds.
+
+  public:
+    TimeSource(int quantTime, int nrOfQuants);
+    ~TimeSource();
+
+    void start();
+    void stop();
+    unsigned time();
+  };
+
+  class StubTimer
+  {
+  public:
+    StubTimer(int bufferTime, int bufferCount);
+    ~StubTimer();
+    void start();
+    void stop();
+    void waitForBuffer();
+
+  protected:
+    unsigned mBufferTime;
+    unsigned mBufferCount;
+    unsigned mCurrentTime;
+    TimeSource     mTimeSource;
+#ifdef TARGET_WIN
+    HANDLE        mStubSignal;
+#endif
+    bool          mActive;
+  };
+}
+
+#endif