/*
     File: ACCodec.cpp
 Abstract: ACCodec.h
  Version: 1.1
 
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*/
//=============================================================================
//	Includes
//=============================================================================

#include "ACCodec.h"

//=============================================================================
//	ACCodec
//=============================================================================

ACCodec::ACCodec(AudioComponentInstance inInstance) : ComponentBase(inInstance)
{
}

ACCodec::~ACCodec()
{
}

#if !CA_USE_AUDIO_PLUGIN_ONLY && !TARGET_OS_IPHONE

#if TARGET_OS_MAC
	#if __LP64__
		// comp instance, parameters in forward order
		#define PARAM(_typ, _name, _index, _nparams) \
		_typ _name = *(_typ *)((void*)&inParameters->params[_index + 1]);
	#else
		// parameters in reverse order, then comp instance
		#define PARAM(_typ, _name, _index, _nparams) \
		_typ _name = *(_typ *)((void*)&inParameters->params[_nparams - 1 - _index]);
	#endif
#elif TARGET_OS_WIN32
	// (no comp instance), parameters in forward order
	#define PARAM(_typ, _name, _index, _nparams) \
	_typ _name = *(_typ *)&inParameters->params[_index];
#endif

OSStatus	ACCodec::ComponentEntryDispatch(ComponentParameters *inParameters, ACCodec *inThis)
{
	OSStatus		theError = kAudioCodecNoError;
	
	try
	{
		switch (inParameters->what)
		{
				//	these selectors don't use the object pointer
				
			case kComponentOpenSelect:
			case kComponentCloseSelect:
				theError = ComponentBase::ComponentEntryDispatch(inParameters, inThis);
				break;
				
			case kComponentCanDoSelect:
			{
				switch (GetSelectorForCanDo(inParameters))
				{
					case kAudioCodecGetPropertyInfoSelect:
					case kAudioCodecGetPropertySelect:
					case kAudioCodecSetPropertySelect:
					case kAudioCodecInitializeSelect:
					case kAudioCodecUninitializeSelect: // was missing -- why?
					case kAudioCodecAppendInputDataSelect:
					case kAudioCodecProduceOutputDataSelect:
					case kAudioCodecResetSelect:
						theError = 1;
						break;
					default:
						theError = ComponentBase::ComponentEntryDispatch(inParameters, inThis);
						break;
				}
			}
			break;
				
			default:
				//	these selectors use the object pointer
				if(inThis != NULL)
				{
					switch (inParameters->what)
					{
						case kComponentVersionSelect:
							theError = inThis->Version();
							break;
							
						case kAudioCodecGetPropertyInfoSelect:
						{
							PARAM(AudioCodecPropertyID, inPropertyID, 0, 3);
							PARAM(UInt32 *, outSize, 1, 3);
							PARAM(Boolean *, outWritable, 2, 3);
							
							UInt32 theSize = 0;
							Boolean isWritable = false;
							
							inThis->GetPropertyInfo(inPropertyID, theSize, isWritable);
							if(outSize != NULL)
							{
								*outSize = theSize;
							}
							if(outWritable != NULL)
							{
								*outWritable = isWritable ? 1 : 0;
							}
						}
							break;
							
						case kAudioCodecGetPropertySelect:
						{
							PARAM(AudioCodecPropertyID, inPropertyID, 0, 3);
							PARAM(UInt32 *, ioPropertyDataSize, 1, 3);
							PARAM(void *, outPropertyData, 2, 3);
							
							if((ioPropertyDataSize != NULL) && (outPropertyData != NULL))
							{
								inThis->GetProperty(inPropertyID, *ioPropertyDataSize, outPropertyData);
							}
							else
							{
								theError = kAudio_ParamError;
							}
						}
							break;
							
						case kAudioCodecSetPropertySelect:
						{
							PARAM(AudioCodecPropertyID, inPropertyID, 0, 3);
							PARAM(UInt32, inPropertyDataSize, 1, 3);
							PARAM(const void *, inPropertyData, 2, 3);
							
							if(inPropertyData != NULL)
							{
								inThis->SetProperty(inPropertyID, inPropertyDataSize, inPropertyData);
							}
							else
							{
								theError = kAudio_ParamError;
							}
						}
							break;
							
						case kAudioCodecInitializeSelect:
						{
							PARAM(const AudioStreamBasicDescription *, inInputFormat, 0, 4);
							PARAM(const AudioStreamBasicDescription *, inOutputFormat, 1, 4);
							PARAM(const void *, inMagicCookie, 2, 4);
							PARAM(UInt32, inMagicCookieByteSize, 3, 4);
							
							inThis->Initialize(inInputFormat, inOutputFormat, inMagicCookie, inMagicCookieByteSize);
						}
							break;
							
						case kAudioCodecUninitializeSelect:
						{
							inThis->Uninitialize();
						}
							break;
							
						case kAudioCodecAppendInputDataSelect:
						{
							PARAM(const void *, inInputData, 0, 4);
							PARAM(UInt32 *, ioInputDataByteSize, 1, 4);
							PARAM(UInt32 *, ioNumberPackets, 2, 4);
							PARAM(const AudioStreamPacketDescription *, inPacketDescription, 3, 4);
							
							if((inInputData != NULL) && (ioInputDataByteSize != NULL))
							{
								if(ioNumberPackets != NULL)
								{
									inThis->AppendInputData(inInputData, *ioInputDataByteSize, *ioNumberPackets, inPacketDescription);
								}
								else
								{
									UInt32 theNumberPackets = 0;
									inThis->AppendInputData(inInputData, *ioInputDataByteSize, theNumberPackets, inPacketDescription);
								}
							}
							else
							{
								theError = kAudio_ParamError;
							}
						}
							break;
							
						case kAudioCodecProduceOutputDataSelect:
						{
							PARAM(void *, outOutputData, 0, 5);
							PARAM(UInt32 *, ioOutputDataByteSize, 1, 5);
							PARAM(UInt32 *, ioNumberPackets, 2, 5);
							PARAM(AudioStreamPacketDescription *, outPacketDescription, 3, 5);
							PARAM(UInt32 *, outStatus, 4, 5);
							
							if((outOutputData != NULL) && (ioOutputDataByteSize != NULL) && (ioNumberPackets != NULL) && (outStatus != NULL))
							{
								*outStatus = inThis->ProduceOutputPackets(outOutputData, *ioOutputDataByteSize, *ioNumberPackets, outPacketDescription);
								if(kAudioCodecProduceOutputPacketFailure == *outStatus)
								{
									theError = kAudio_ParamError;
								}
							}
							else
							{
								theError = kAudio_ParamError;
							}
						}
							break;
							
#if AC_NON_INTERLEAVED_SUPPORT
						case kAudioCodecAppendInputBufferListSelect:
						{
							PARAM(const AudioBufferList *, inBufferList, 0, 4);
							PARAM(UInt32 *, ioNumberPackets, 1, 4);
							PARAM(const AudioStreamPacketDescription *, inPacketDescription, 2, 4);
							PARAM(UInt32 *, outBytesConsumed, 3, 4);
							
							if((inBufferList != NULL) && (outBytesConsumed != NULL))
							{
								if(ioNumberPackets != NULL)
								{
									inThis->AppendInputBufferList(inBufferList, *ioNumberPackets, inPacketDescription, outBytesConsumed);
								}
								else
								{
									UInt32 theNumberPackets = 0;
									inThis->AppendInputBufferList(inBufferList, theNumberPackets, inPacketDescription, outBytesConsumed);
								}
							}
							else
							{
								theError = kAudio_ParamError;
							}
						}
							break;
							
						case kAudioCodecProduceOutputBufferListSelect:
						{
							PARAM(AudioBufferList *, ioBufferList, 0, 4);
							PARAM(UInt32 *, ioNumberPackets, 1, 4);
							PARAM(AudioStreamPacketDescription *, outPacketDescription, 2, 4);
							PARAM(UInt32 *, outStatus, 3, 4);
							
							if((ioBufferList != NULL) && (ioNumberPackets != NULL) && (outStatus != NULL))
							{
								*outStatus = inThis->ProduceOutputBufferList(ioBufferList, *ioNumberPackets, outPacketDescription);
								if(kAudioCodecProduceOutputPacketFailure == *outStatus)
								{
									theError = kAudio_ParamError;
								}
							}
							else
							{
								theError = kAudio_ParamError;
							}
						}
							break;
#endif	// AC_NON_INTERLEAVED_SUPPORT
							
						case kAudioCodecResetSelect:
						{
							inThis->Reset();
						}
							break;
							
						default:
							theError = badComponentSelector;
							break;
					};
				}
				else
				{
					theError = kAudio_ParamError;
				}
				break;
		};
	}
	catch(OSStatus inErrorCode)
	{
		theError = inErrorCode;
	}
	catch(...)
	{
		theError = kAudioCodecUnspecifiedError;
	}
	
	return theError;
}
#endif // !CA_USE_AUDIO_PLUGIN_ONLY && !TARGET_OS_IPHONE