sl@0: // Copyright (c) 2005-2009 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 <ecom/ecom.h>
sl@0: #include <ecom/ecomerrorcodes.h>
sl@0: #include <ecom/ecomresolverparams.h>
sl@0: #include <ecom/implementationinformation.h>
sl@0: #include <ecom/publicregistry.h>
sl@0: #include <mdf/codecapiresolverdata.h>
sl@0: #include <mdf/codecapiresolverutils.h>
sl@0: #include <mdf/codecapivideoresolverutils.h>
sl@0: #include <mdf/codecapiuids.hrh>
sl@0: #include "codecapiresolver.h"
sl@0:
sl@0: /**
sl@0: Constructs a CCodecApiResolver object.
sl@0: @param aRegistry
sl@0: A reference to the instantiated registry information
sl@0: @return An instance of the class or NULL.
sl@0: */
sl@0: CCodecApiResolver* CCodecApiResolver::NewL (MPublicRegistry& aRegistry)
sl@0: {
sl@0: return new(ELeave) CCodecApiResolver (aRegistry);
sl@0: }
sl@0:
sl@0:
sl@0: /**
sl@0: Class destructor.
sl@0: */
sl@0: CCodecApiResolver::~CCodecApiResolver()
sl@0: {
sl@0: }
sl@0:
sl@0: /**
sl@0: Class constructor.
sl@0: */
sl@0: CCodecApiResolver::CCodecApiResolver (MPublicRegistry& aRegistry) :
sl@0: CResolver (aRegistry)
sl@0: {
sl@0: }
sl@0:
sl@0: /**
sl@0: Requests the resolver to identify the most appropriate interface implementation.
sl@0: @param aInterfaceUid
sl@0: The interface for which an implementation is requested.
sl@0: @param aAdditionalParameters
sl@0: The parameters which must match for an implementation to be suitable.
sl@0: @return The unique id of the implementation which satisfies the specified parameters.
sl@0: KNullUid if not implementation is found.
sl@0: */
sl@0: TUid CCodecApiResolver::IdentifyImplementationL(TUid /*aInterfaceUid*/,
sl@0: const TEComResolverParams& /*aAdditionalParameters*/) const
sl@0: {
sl@0: return KNullUid;
sl@0: }
sl@0:
sl@0:
sl@0: /**
sl@0: Lists all the implementations which satisfy the specified interface definition and the
sl@0: resolve parameters supplied.
sl@0: @param aInterfaceUid
sl@0: The interface for which an implementation is requested.
sl@0: @param aAdditionalParameters
sl@0: The parameters which must match for an implementation to be suitable.
sl@0: @return Pointer to an array of suitable implementations. Ownership of this array is passed
sl@0: to the calling function.
sl@0: */
sl@0: RImplInfoArray* CCodecApiResolver::ListAllL(TUid aInterfaceUid,
sl@0: const TEComResolverParams& aAdditionalParameters) const
sl@0: {
sl@0: RImplInfoArray* retList = new (ELeave) RImplInfoArray;
sl@0: // coverity[double_push]
sl@0: CleanupStack::PushL(retList);
sl@0: CleanupClosePushL(*retList);
sl@0:
sl@0: CCodecApiResolverData* customMatch = CCodecApiResolverData::NewLC(aAdditionalParameters.DataType());
sl@0:
sl@0: TCodecApiResolverMatchType matchType = customMatch->MatchType();
sl@0: TUid implementationTypeUid = customMatch->ImplementationType();
sl@0:
sl@0: // create a list with all
sl@0: RImplInfoArray& fullList = iRegistry.ListImplementationsL(aInterfaceUid);
sl@0: const TInt count = fullList.Count();
sl@0:
sl@0: for(TInt index = 0; index < count; index++)
sl@0: {
sl@0: TBool matchFound = EFalse;
sl@0: const CImplementationInformation& impData = *(fullList[index]);
sl@0: CCodecApiOpaqueData* parse = NULL;
sl@0: const TDesC8* opaqueData = &impData.OpaqueData();
sl@0: // if opaque data is empty, move to the next element in the list
sl@0: if (opaqueData->Length() == 0)
sl@0: {
sl@0: continue;
sl@0: }
sl@0: // create an instance of the class which holds the opaque data
sl@0: TInt error = KErrNotFound;
sl@0:
sl@0: if (implementationTypeUid == TUid::Uid(KUidAudioCodec))
sl@0: {
sl@0: TRAP(error, parse = CCodecApiOpaqueData::NewL(impData.OpaqueData()));
sl@0: }
sl@0: else
sl@0: {
sl@0: if ((implementationTypeUid == TUid::Uid(KUidVideoEncoder))
sl@0: || implementationTypeUid == TUid::Uid(KUidVideoDecoder))
sl@0: {
sl@0: TRAP(error, parse = CCodecApiVideoOpaqueData::NewL(impData.OpaqueData()));
sl@0: }
sl@0: else
sl@0: {
sl@0: error = KErrNotSupported;
sl@0: }
sl@0: }
sl@0:
sl@0: CleanupStack::PushL(parse);
sl@0:
sl@0: if (error)
sl@0: {
sl@0: if ((error == KErrNotSupported) || (error == KErrCorrupt))
sl@0: {
sl@0: // means that the resource entry was not valid
sl@0: // we ignore this plugin and try the next one
sl@0: CleanupStack::PopAndDestroy(parse);
sl@0: continue;
sl@0: }
sl@0: else
sl@0: {
sl@0: User::Leave(error);
sl@0: }
sl@0: } //end of if (error!=KErrNone)
sl@0:
sl@0: // check if the uids are different. If they are, move to the next element
sl@0: // in the list
sl@0: if (implementationTypeUid != parse->TypeUid())
sl@0: {
sl@0: CleanupStack::PopAndDestroy(parse);
sl@0: continue;
sl@0: }
sl@0: switch(matchType)
sl@0: {
sl@0: // check that the input data type is what we are looking for
sl@0: case EMatchInputDataFormat:
sl@0: if (parse->CompareInputDataType(customMatch->InputDataFormat()))
sl@0: {
sl@0: matchFound = ETrue;
sl@0: }
sl@0: break;
sl@0: // check that the output data type is what we are looking for
sl@0: case EMatchOutputDataFormat:
sl@0: if (parse->CompareOutputDataType(customMatch->OutputDataFormat()))
sl@0: {
sl@0: matchFound = ETrue;
sl@0: }
sl@0: break;
sl@0: // check that the input and output data type is what we are looking for
sl@0: case EMatchInputAndOutputDataFormat:
sl@0: if (parse->CompareInputDataType(customMatch->InputDataFormat())
sl@0: && parse->CompareOutputDataType(customMatch->OutputDataFormat()))
sl@0: {
sl@0: matchFound = ETrue;
sl@0: }
sl@0: break;
sl@0: default:
sl@0: {
sl@0: //matchFound was initialised to EFalse, so fall through
sl@0: }
sl@0: }
sl@0: // if a match was found, it will be appended to the list returned by this method
sl@0: if (matchFound)
sl@0: {
sl@0: User::LeaveIfError(retList->Append(fullList[index]));
sl@0: }
sl@0: CleanupStack::PopAndDestroy(parse);
sl@0: } // end of for
sl@0:
sl@0: CleanupStack::PopAndDestroy(customMatch);
sl@0: CleanupStack::Pop(2, retList);
sl@0: return retList;
sl@0: }
sl@0:
sl@0: