|
1 // Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // |
|
15 |
|
16 #include <ecom/ecom.h> |
|
17 #include <ecom/ecomerrorcodes.h> |
|
18 #include <ecom/ecomresolverparams.h> |
|
19 #include <ecom/implementationinformation.h> |
|
20 #include <ecom/publicregistry.h> |
|
21 #include <mdf/codecapiresolverdata.h> |
|
22 #include <mdf/codecapiresolverutils.h> |
|
23 #include <mdf/codecapivideoresolverutils.h> |
|
24 #include <mdf/codecapiuids.hrh> |
|
25 #include "codecapiresolver.h" |
|
26 |
|
27 /** |
|
28 Constructs a CCodecApiResolver object. |
|
29 @param aRegistry |
|
30 A reference to the instantiated registry information |
|
31 @return An instance of the class or NULL. |
|
32 */ |
|
33 CCodecApiResolver* CCodecApiResolver::NewL (MPublicRegistry& aRegistry) |
|
34 { |
|
35 return new(ELeave) CCodecApiResolver (aRegistry); |
|
36 } |
|
37 |
|
38 |
|
39 /** |
|
40 Class destructor. |
|
41 */ |
|
42 CCodecApiResolver::~CCodecApiResolver() |
|
43 { |
|
44 } |
|
45 |
|
46 /** |
|
47 Class constructor. |
|
48 */ |
|
49 CCodecApiResolver::CCodecApiResolver (MPublicRegistry& aRegistry) : |
|
50 CResolver (aRegistry) |
|
51 { |
|
52 } |
|
53 |
|
54 /** |
|
55 Requests the resolver to identify the most appropriate interface implementation. |
|
56 @param aInterfaceUid |
|
57 The interface for which an implementation is requested. |
|
58 @param aAdditionalParameters |
|
59 The parameters which must match for an implementation to be suitable. |
|
60 @return The unique id of the implementation which satisfies the specified parameters. |
|
61 KNullUid if not implementation is found. |
|
62 */ |
|
63 TUid CCodecApiResolver::IdentifyImplementationL(TUid /*aInterfaceUid*/, |
|
64 const TEComResolverParams& /*aAdditionalParameters*/) const |
|
65 { |
|
66 return KNullUid; |
|
67 } |
|
68 |
|
69 |
|
70 /** |
|
71 Lists all the implementations which satisfy the specified interface definition and the |
|
72 resolve parameters supplied. |
|
73 @param aInterfaceUid |
|
74 The interface for which an implementation is requested. |
|
75 @param aAdditionalParameters |
|
76 The parameters which must match for an implementation to be suitable. |
|
77 @return Pointer to an array of suitable implementations. Ownership of this array is passed |
|
78 to the calling function. |
|
79 */ |
|
80 RImplInfoArray* CCodecApiResolver::ListAllL(TUid aInterfaceUid, |
|
81 const TEComResolverParams& aAdditionalParameters) const |
|
82 { |
|
83 RImplInfoArray* retList = new (ELeave) RImplInfoArray; |
|
84 // coverity[double_push] |
|
85 CleanupStack::PushL(retList); |
|
86 CleanupClosePushL(*retList); |
|
87 |
|
88 CCodecApiResolverData* customMatch = CCodecApiResolverData::NewLC(aAdditionalParameters.DataType()); |
|
89 |
|
90 TCodecApiResolverMatchType matchType = customMatch->MatchType(); |
|
91 TUid implementationTypeUid = customMatch->ImplementationType(); |
|
92 |
|
93 // create a list with all |
|
94 RImplInfoArray& fullList = iRegistry.ListImplementationsL(aInterfaceUid); |
|
95 const TInt count = fullList.Count(); |
|
96 |
|
97 for(TInt index = 0; index < count; index++) |
|
98 { |
|
99 TBool matchFound = EFalse; |
|
100 const CImplementationInformation& impData = *(fullList[index]); |
|
101 CCodecApiOpaqueData* parse = NULL; |
|
102 const TDesC8* opaqueData = &impData.OpaqueData(); |
|
103 // if opaque data is empty, move to the next element in the list |
|
104 if (opaqueData->Length() == 0) |
|
105 { |
|
106 continue; |
|
107 } |
|
108 // create an instance of the class which holds the opaque data |
|
109 TInt error = KErrNotFound; |
|
110 |
|
111 if (implementationTypeUid == TUid::Uid(KUidAudioCodec)) |
|
112 { |
|
113 TRAP(error, parse = CCodecApiOpaqueData::NewL(impData.OpaqueData())); |
|
114 } |
|
115 else |
|
116 { |
|
117 if ((implementationTypeUid == TUid::Uid(KUidVideoEncoder)) |
|
118 || implementationTypeUid == TUid::Uid(KUidVideoDecoder)) |
|
119 { |
|
120 TRAP(error, parse = CCodecApiVideoOpaqueData::NewL(impData.OpaqueData())); |
|
121 } |
|
122 else |
|
123 { |
|
124 error = KErrNotSupported; |
|
125 } |
|
126 } |
|
127 |
|
128 CleanupStack::PushL(parse); |
|
129 |
|
130 if (error) |
|
131 { |
|
132 if ((error == KErrNotSupported) || (error == KErrCorrupt)) |
|
133 { |
|
134 // means that the resource entry was not valid |
|
135 // we ignore this plugin and try the next one |
|
136 CleanupStack::PopAndDestroy(parse); |
|
137 continue; |
|
138 } |
|
139 else |
|
140 { |
|
141 User::Leave(error); |
|
142 } |
|
143 } //end of if (error!=KErrNone) |
|
144 |
|
145 // check if the uids are different. If they are, move to the next element |
|
146 // in the list |
|
147 if (implementationTypeUid != parse->TypeUid()) |
|
148 { |
|
149 CleanupStack::PopAndDestroy(parse); |
|
150 continue; |
|
151 } |
|
152 switch(matchType) |
|
153 { |
|
154 // check that the input data type is what we are looking for |
|
155 case EMatchInputDataFormat: |
|
156 if (parse->CompareInputDataType(customMatch->InputDataFormat())) |
|
157 { |
|
158 matchFound = ETrue; |
|
159 } |
|
160 break; |
|
161 // check that the output data type is what we are looking for |
|
162 case EMatchOutputDataFormat: |
|
163 if (parse->CompareOutputDataType(customMatch->OutputDataFormat())) |
|
164 { |
|
165 matchFound = ETrue; |
|
166 } |
|
167 break; |
|
168 // check that the input and output data type is what we are looking for |
|
169 case EMatchInputAndOutputDataFormat: |
|
170 if (parse->CompareInputDataType(customMatch->InputDataFormat()) |
|
171 && parse->CompareOutputDataType(customMatch->OutputDataFormat())) |
|
172 { |
|
173 matchFound = ETrue; |
|
174 } |
|
175 break; |
|
176 default: |
|
177 { |
|
178 //matchFound was initialised to EFalse, so fall through |
|
179 } |
|
180 } |
|
181 // if a match was found, it will be appended to the list returned by this method |
|
182 if (matchFound) |
|
183 { |
|
184 User::LeaveIfError(retList->Append(fullList[index])); |
|
185 } |
|
186 CleanupStack::PopAndDestroy(parse); |
|
187 } // end of for |
|
188 |
|
189 CleanupStack::PopAndDestroy(customMatch); |
|
190 CleanupStack::Pop(2, retList); |
|
191 return retList; |
|
192 } |
|
193 |
|
194 |