/*	Copyright: 	© Copyright 2004 Apple Computer, Inc. All rights reserved.

	Disclaimer:	IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
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			may be infringed by your derivative works or by other works in which the Apple
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*/
/*=============================================================================
	SMACsdec.h

=============================================================================*/
#if !defined(__SMACsdec_h__)
#define __SMACsdec_h__

//=============================================================================
//	Includes
//=============================================================================
#include <CAConditionalMacros.h>

#if	TARGET_API_MAC_OSX && !USE_QTML_HEADERS
#include <Carbon/Carbon.h>
#else
#include <Sound.h>
#endif

#if	TARGET_API_MAC_OSX
#include "CAMutex.h"
#endif

#include "AudioCodec.h"
#include <stdio.h>

//#define	CaptureDataToFile	1

//=============================================================================
//	SMACsdec
//=============================================================================

class SMACsdec
{

//	Construction/Destruction
public:
								SMACsdec(ComponentInstance inSelf);
	virtual						~SMACsdec();

//	Sound Component Methods
public:
	virtual void				SetSource(SoundSource inSourceID, ComponentInstance inSourceComponent);
	virtual void				SetOutput(SoundComponentData* inRequested, SoundComponentData** inActual);
	
	virtual void				PlaySourceBuffer(SoundSource inSourceID, SoundParamBlock* inPB, SInt32 inActions);
	virtual void				StopSource(SInt16 inNumberSources, SoundSource* inSources);
	
	virtual void				GetInfo(SoundSource inSourceID, OSType inSelector, void* outData);
	virtual void				SetInfo(SoundSource inSourceID, OSType inSelector, void* inData);
	
	virtual void				GetSourceData(SoundComponentData** outData);

//	Implementation
protected:
	virtual void				GetCompressionInfo(CompressionInfo& outCompressionInfo) = 0;
	virtual void				GetDecompressionParams(void* outData) = 0;
	virtual ComponentInstance	SetDecompressionParams(const void* inData) = 0;
	
	virtual void				GetCurrentInputPacket(void*& outPacketData, UInt32& outPacketDataSize, UInt32& outPacketDataFrameSize);
	virtual void				ConsumeCurrentInputPacket(UInt32 inPacketDataByteSize, UInt32 inPacketDataFrameSize);

	ComponentInstance			mSelf;
	ComponentInstance			mSourceComponent;
	AudioCodec					mDecoder;
	SoundSource					mSourceID;
	SoundComponentData*			mSourceData;
	SoundComponentData			mOutputData;
	UInt32						mPacketFrameSize;
	float *						mFloatBuffer;
	Byte*						mOutputBuffer;
	Boolean						mHasAltiVec;

#if	TARGET_API_MAC_OSX
	CAMutex*					mThreadStateMutex;
#endif

#if	CaptureDataToFile
	SInt16						mOutputFileRefNum;
#endif

#if USE_DIRECT_ADEC
protected:
	// pure virtual interface to redirect audio codec calls thru derived class
									
	virtual	ComponentResult		DirectAudioCodecVersion(AudioCodec inCodec) 
								= NULL;
								
	virtual	ComponentResult		DirectAudioCodecGetPropertyInfo(AudioCodec inCodec,
									AudioCodecPropertyID	inPropertyID,
									UInt32*					outSize,
									Boolean*				outWritable)
								= NULL;
	
	virtual	ComponentResult		DirectAudioCodecGetProperty(AudioCodec inCodec,
									AudioCodecPropertyID	inPropertyID,
									UInt32*					ioPropertyDataSize,
									void*					outPropertyData)
								= NULL;
	
	virtual	ComponentResult		DirectAudioCodecSetProperty(AudioCodec inCodec,
									AudioCodecPropertyID	inPropertyID,
									UInt32					inPropertyDataSize,
									const void*				inPropertyData)
								= NULL;
	
	virtual	ComponentResult		DirectAudioCodecInitialize(AudioCodec inCodec,
									const AudioStreamBasicDescription*	inInputFormat,
									const AudioStreamBasicDescription*	inOutputFormat,
									const void*							inMagicCookie,
									UInt32								inMagicCookieByteSize)
								= NULL;
								
	virtual	ComponentResult		DirectAudioCodecUninitialize(AudioCodec inCodec)
								= NULL;
	
	virtual	ComponentResult		DirectAudioCodecAppendInputData(AudioCodec inCodec,
									const void*							inInputData,
									UInt32*								ioInputDataByteSize,
									UInt32*								ioNumberPackets,
									const AudioStreamPacketDescription*	inPacketDescription)
								= NULL;
								
	virtual	ComponentResult		DirectAudioCodecProduceOutputPackets(AudioCodec inCodec,
									void*							outOutputData,
									UInt32*							ioOutputDataByteSize,
									UInt32*							ioNumberPackets,
									AudioStreamPacketDescription*	outPacketDescription,
									UInt32*							outStatus) 
								= NULL;
								
	virtual ComponentResult		DirectAudioCodecReset(AudioCodec inCodec)
								= NULL;
								
	virtual ComponentResult		DirectAudioCodecClose(AudioCodec inCodec) 
									{ return noErr; } // not pure virtual, because it's called in our destructor
								
#endif
	
};

#endif
