Added a Sound Decoder using Apple's CoreAudio framework.

--HG--
branch : minor

src/modules/sound/lullaby/CoreAudioDecoder.h

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+/**
+ * Copyright (c) 2006-2015 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#ifndef LOVE_SOUND_LULLABY_CORE_AUDIO_DECODER_H
+#define LOVE_SOUND_LULLABY_CORE_AUDIO_DECODER_H
+
+#ifdef LOVE_SUPPORT_CORE_AUDIO
+
+// LOVE
+#include "common/Data.h"
+#include "Decoder.h"
+
+// Core Audio
+#include <AudioToolbox/AudioFormat.h>
+#include <AudioToolbox/ExtendedAudioFile.h>
+
+namespace love
+{
+namespace sound
+{
+namespace lullaby
+{
+
+/**
+ * Decoder which supports all formats handled by Apple's Core Audio framework.
+ **/
+class CoreAudioDecoder : public Decoder
+{
+public:
+
+	CoreAudioDecoder(Data *data, const std::string &ext, int bufferSize);
+	virtual ~CoreAudioDecoder();
+
+	static bool accepts(const std::string &ext);
+
+	love::sound::Decoder *clone();
+	int decode();
+	bool seek(float s);
+	bool rewind();
+	bool isSeekable();
+	int getChannels() const;
+	int getBitDepth() const;
+
+private:
+
+	void closeAudioFile();
+
+	AudioFileID audioFile;
+	ExtAudioFileRef extAudioFile;
+
+	AudioStreamBasicDescription inputInfo;
+	AudioStreamBasicDescription outputInfo;
+
+}; // CoreAudioDecoder
+
+} // lullaby
+} // sound
+} // love
+
+#endif // LOVE_SUPPORT_CORE_AUDIO
+
+#endif // LOVE_SOUND_LULLABY_CORE_AUDIO_DECODER_H