sl@0: // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include "devvideointernal.h"
sl@0: #ifdef SYMBIAN_MULTIMEDIA_CODEC_API
sl@0: #include <mdf/codecapiresolverdata.h>
sl@0: #include <mdf/codecapiuids.hrh>
sl@0: #include <mdf/codecapiresolver.hrh>
sl@0: #include <mm/mmpluginutils.h>
sl@0: 
sl@0: #include "videoplayhwdevice.h"
sl@0: 
sl@0: void DevVideoUtilities::FindVideoDecoderPluginsL(const TDesC8& aMimeType, RImplInfoPtrArray& aImplInfoArray)
sl@0: 	{
sl@0: 	CCodecApiResolverData* customMatchData = CCodecApiResolverData::NewLC();
sl@0: 	customMatchData->SetMatchType(EMatchInputDataFormat);
sl@0: 	customMatchData->SetImplementationType(TUid::Uid(KUidVideoDecoder));
sl@0: 	// string value of the input source data	
sl@0: 	customMatchData->SetInputDataL(aMimeType);
sl@0: 	
sl@0:   	HBufC8* package  = customMatchData->NewPackLC(); // parameters to match sent as "default data"
sl@0: 	MmPluginUtils::FindImplementationsL(TUid::Uid(KUidMdfProcessingUnit), aImplInfoArray, *package, TUid::Uid(KUidCodecApiResolverImplementation));
sl@0: 	CleanupStack::PopAndDestroy(2, customMatchData); // package, customMatchData
sl@0: 	}
sl@0: 
sl@0: 
sl@0: void DevVideoUtilities::FindVideoEncoderPluginsL(const TDesC8& aMimeType, RImplInfoPtrArray& aImplInfoArray)
sl@0: 	{
sl@0: 	CCodecApiResolverData* customMatchData = CCodecApiResolverData::NewLC();
sl@0: 	customMatchData->SetMatchType(EMatchOutputDataFormat);
sl@0: 	customMatchData->SetImplementationType(TUid::Uid(KUidVideoEncoder));
sl@0: 	// string value of the input source data	
sl@0: 	customMatchData->SetOutputDataL(aMimeType);
sl@0: 	
sl@0:  	HBufC8* package  = customMatchData->NewPackLC(); // parameters to match sent as "default data"	
sl@0: 	MmPluginUtils::FindImplementationsL(TUid::Uid(KUidMdfProcessingUnit), aImplInfoArray, *package, TUid::Uid(KUidCodecApiResolverImplementation));
sl@0: 	CleanupStack::PopAndDestroy(2, customMatchData); // package, customMatchData
sl@0: 	}
sl@0: 
sl@0: void DevVideoUtilities::CreatePuListL(RImplInfoPtrArray& aImplInfoArray)
sl@0: 	{
sl@0: 	// we can use REComSession::ListImplementationsL() straight, and skip the sort step of MmPluginUtils
sl@0: 	// as this list is used purely to feedback into FindPu below, and see if the plugin is a PU and not a HwDevice
sl@0: 	aImplInfoArray.Reset();
sl@0: 	REComSession::ListImplementationsL(TUid::Uid(KUidMdfProcessingUnit), aImplInfoArray);
sl@0: 	}
sl@0: 	
sl@0: 	
sl@0: const CImplementationInformation* DevVideoUtilities::FindPu(const RImplInfoPtrArray& aImplInfoArray, TUid aPuUid)
sl@0: 	{
sl@0: 	CImplementationInformation* info = NULL;
sl@0: 	for (TInt i=0;i<aImplInfoArray.Count() && info == NULL;i++)
sl@0: 		{
sl@0: 		if (aImplInfoArray[i]->ImplementationUid() == aPuUid)
sl@0: 			{
sl@0: 			info = aImplInfoArray[i];
sl@0: 			}
sl@0: 		}
sl@0: 	return info;
sl@0: 	}
sl@0: 
sl@0: #endif // SYMBIAN_MULTIMEDIA_CODEC_API
sl@0: 
sl@0: TInt DevVideoUtilities::ConvertTextToTUint32(const TDesC8& aData, TUint32& aNumber)
sl@0: 	{
sl@0: 	// Work out whether aData is in hex or not by looking for an 0x at the beginning
sl@0: 	TInt error = KErrNone;
sl@0: 
sl@0: 	_LIT8(K0x, "0x");
sl@0: 	if (aData.FindF(K0x) == 0)
sl@0: 		{
sl@0: 		// Data is in hex
sl@0: 		// Discard the '0x'
sl@0: 		TLex8 lex(aData.Right(aData.Length() - K0x().Length()));
sl@0: 		error = lex.Val(aNumber, EHex);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		// Assume aData is in decimal
sl@0: 		TLex8 lex(aData);
sl@0: 		error = lex.Val(aNumber, EDecimal);
sl@0: 		}
sl@0: 
sl@0: 	return error;
sl@0: 	}
sl@0: 
sl@0: void DevVideoUtilities::MatchPrePostProcessorCapabilitiesL(const RImplInfoPtrArray& aPlugins, TUint32 aReqPrePostProcType, RArray<TUid>& aMatchingPlugins)
sl@0: 	{
sl@0: 	aMatchingPlugins.Reset();
sl@0: 
sl@0: 	TInt count = aPlugins.Count();
sl@0: 	for (TInt i=0; i<count; i++)
sl@0: 		{
sl@0: 		const CImplementationInformation* plugin = aPlugins[i];
sl@0: 		TUint32 pluginPostProcType = 0;
sl@0: 		TInt error = ConvertTextToTUint32(plugin->OpaqueData(), pluginPostProcType);
sl@0: 		if (error == KErrNone)
sl@0: 			{
sl@0: 			// Check the plugin has at least the pre/post processing capabilities demanded by the client
sl@0: 			if ((pluginPostProcType & aReqPrePostProcType) == aReqPrePostProcType)
sl@0: 				{
sl@0: 				User::LeaveIfError(aMatchingPlugins.Append(plugin->ImplementationUid()));
sl@0: 				}
sl@0: 			}
sl@0: 		else if (error == KErrCorrupt)
sl@0: 			{
sl@0: 			// In debug mode leave, in release mode just swallow the error since we
sl@0: 			// don't want to allow broken plugins to prevent other plugins being recognised.
sl@0: #ifdef _DEBUG
sl@0: 			User::Leave(error);
sl@0: #endif //_DEBUG
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			User::Leave(error);
sl@0: 			}
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void DevVideoUtilities::SelectPluginBasedOnMatchType(const TDesC8& aMatchType, RImplInfoPtrArray& aImplInfoArray)
sl@0: 	{
sl@0: 	// In this function if allowing wildcards then TDesC8::Match is used which returns 
sl@0: 	// the position of the match or KErrNotFound
sl@0: 	// If not allowing wildcards then TDesC8::Compare is used which returns a TInt which
sl@0: 	// indicates if one descriptor is bigger than the other (0 if they are identical)
sl@0: 	TBool matchResult = ETrue;
sl@0: 	
sl@0: 	if(aMatchType.Length() == 0)
sl@0: 		{
sl@0: 		return;
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		TInt count = aImplInfoArray.Count();
sl@0: 
sl@0: 		_LIT8(KdataSeparator, "||");
sl@0: 		const TInt separatorLength = KdataSeparator().Length();
sl@0: 
sl@0: 		for (TInt index = 0; index < count;)
sl@0: 			{
sl@0: 			CImplementationInformation* plugin = aImplInfoArray[index];
sl@0: 			const TDesC8& mimeType = plugin->DataType();
sl@0: 		
sl@0: 			// Look for the section separator marker '||'
sl@0: 			TInt separatorPos = mimeType.Find(KdataSeparator);
sl@0: 
sl@0: 			if(separatorPos == KErrNotFound)
sl@0: 				{
sl@0: 					matchResult = aMatchType.MatchF(mimeType) != KErrNotFound;
sl@0: 				}
sl@0: 			else
sl@0: 				{
sl@0: 				// Find the first section, up to the separator
sl@0: 				TPtrC8 dataSection = mimeType.Left(separatorPos);
sl@0: 				TPtrC8 remainingData = mimeType.Mid(separatorPos + separatorLength);
sl@0: 
sl@0: 				// Match against each section in turn
sl@0: 				while(separatorPos != KErrNotFound)
sl@0: 					{
sl@0: 					matchResult = aMatchType.MatchF(dataSection) != KErrNotFound;
sl@0: 
sl@0: 					// If we found it then no need to continue, so return
sl@0: 					if(matchResult)
sl@0: 						break;
sl@0: 
sl@0: 					// Move on to the next section
sl@0: 					separatorPos = remainingData.Find(KdataSeparator);
sl@0: 					if(separatorPos != KErrNotFound)
sl@0: 						{
sl@0: 						dataSection.Set(remainingData.Left(separatorPos));
sl@0: 						remainingData.Set(remainingData.Mid(separatorPos + separatorLength));
sl@0: 						}
sl@0: 					else
sl@0: 						{
sl@0: 						dataSection.Set(remainingData);
sl@0: 						}
sl@0: 					} // end of while
sl@0: 
sl@0: 					// Check the final part
sl@0: 					matchResult = aMatchType.MatchF(dataSection) != KErrNotFound;
sl@0: 					
sl@0: 				} //end of else
sl@0: 
sl@0: 				// if a match was found increment the array,
sl@0: 				// otherwise remove the element from the array
sl@0: 				if (matchResult)
sl@0: 					{
sl@0: 					index++;
sl@0: 					}
sl@0: 				else
sl@0: 					{
sl@0: 					delete aImplInfoArray[index];
sl@0: 					aImplInfoArray.Remove(index);
sl@0: 	    			count--;
sl@0: 					}
sl@0: 				
sl@0: 			} //end of for
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: