livetrax/libs/appleutility/CoreAudio/AudioCodecs/ACPublic/ACCodec.cpp

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

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 not agree with these terms, please do not use, install, modify or
 redistribute this Apple software.

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 license, under Apple's copyrights in this original Apple software (the
 "Apple Software"), to use, reproduce, modify and redistribute the Apple
 Software, with or without modifications, in source and/or binary forms;
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 Neither the name, trademarks, service marks or logos of Apple Inc. may
 be used to endorse or promote products derived from the Apple Software
 without specific prior written permission from Apple.  Except as
 expressly stated in this notice, no other rights or licenses, express or
 implied, are granted by Apple herein, including but not limited to any
 patent rights that may be infringed by your derivative works or by other
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 The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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 FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.

 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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 Copyright (C) 2014 Apple Inc. All Rights Reserved.

*/
//=============================================================================
//	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