author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 14 May 2010 15:43:29 +0300 | |
changeset 3 | ee64f059b8e1 |
parent 0 | 09774dfdd46b |
child 8 | 3b03c28289e6 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006-2007 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: ?Description |
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* |
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*/ |
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#include <implementationproxy.h> |
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#include "irdebug.h" |
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#include "irrecognizer.h" |
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// CONSTANTS |
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//voilate PC Lint Warning 569: Loss of information (initialization) |
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//(32 bits to 31 bits) |
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// Uid of the recogniser |
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//const TUid KUidIRRecognizer={0x2000B499} |
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// maximum amount of buffer space we will ever use |
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const TInt KMaxBufferLength=4*1024; |
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// If the file name length > 4, the file extension might be valid |
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const TInt KPlsFileExtensionsMightBeValid = 4; |
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const TInt KM3uFileExtensionsMightBeValid = 4; |
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//extension of File to be recognised. |
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_LIT(KPlsExtension, ".pls"); |
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//Mime type of the .pls file |
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_LIT8(KPlsMimeType,"audio/x-scpls"); |
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_LIT(KM3uExtension, ".m3u"); |
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_LIT8(KM3uMimeType, "audio/x-mpegurl"); |
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// ================= MEMBER FUNCTIONS ======================= |
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// --------------------------------------------------------------------------- |
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// RecognizerEx::RecognizerEx() |
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// constructs the object |
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// --------------------------------------------------------------------------- |
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// |
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CApaRecognizerEx::CApaRecognizerEx():CApaDataRecognizerType(KIRRecognizerDllUid, |
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CApaDataRecognizerType::EHigh) |
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{ |
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IRLOG_DEBUG( "CApaRecognizerEx::CApaRecognizerEx()" ); |
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// It supports 2 mime type |
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iCountDataTypes = 2; |
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IRLOG_DEBUG( "CApaRecognizerEx::CApaRecognizerEx() - Exiting." ); |
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} |
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// --------------------------------------------------------------------------- |
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// RecognizerEx::~RecognizerEx() |
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// Destroys the object |
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// --------------------------------------------------------------------------- |
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// |
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CApaRecognizerEx::~CApaRecognizerEx() |
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{ |
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IRLOG_DEBUG( "CApaRecognizerEx::~CApaRecognizerEx" ); |
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// no implementation |
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} |
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// --------------------------------------------------------------------------- |
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// RecognizerEx::CreateRecognizerL() |
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// Returns pointer to the new object |
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// --------------------------------------------------------------------------- |
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// |
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CApaDataRecognizerType* CApaRecognizerEx::CreateRecognizerL() |
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{ |
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IRLOG_DEBUG( "CApaRecognizerEx::CreateRecognizerL" ); |
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return new (ELeave) CApaRecognizerEx(); |
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} |
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// --------------------------------------------------------------------------- |
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// RecognizerEx::PreferredBufSize() |
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// Returns preferred buffer size |
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// --------------------------------------------------------------------------- |
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// |
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TUint CApaRecognizerEx::PreferredBufSize() |
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{ |
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IRLOG_DEBUG( "CApaRecognizerEx::PreferredBufSize" ); |
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return KMaxBufferLength; |
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} |
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// --------------------------------------------------------------------------- |
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// RecognizerEx::SupportedDataTypeL() |
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// Returns supported mime type |
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// --------------------------------------------------------------------------- |
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// |
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TDataType CApaRecognizerEx::SupportedDataTypeL(TInt aIndex) const |
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{ |
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IRLOG_DEBUG( "CApaRecognizerEx::SupportedDataTypeL" ); |
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if (0 == aIndex) |
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{ |
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return TDataType(KPlsMimeType); |
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} |
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else if (1 == aIndex) |
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{ |
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return TDataType(KM3uMimeType); |
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} |
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else |
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{ |
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ASSERT(0); |
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return TDataType(KNullDesC8); |
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} |
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} |
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|
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// --------------------------------------------------------------------------- |
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// RecognizerEx::DoRecognizeL() |
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// Recognizes the file by name and/or head buffer |
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// --------------------------------------------------------------------------- |
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// |
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void CApaRecognizerEx::DoRecognizeL(const TDesC& aName, |
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const TDesC8& aBuffer) |
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{ |
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IRLOG_DEBUG( "CApaRecognizerEx::DoRecognizeL" ); |
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// To keep code simple, we only check file name extension |
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TInt len = aBuffer.Length(); |
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if (aName.Length()>KPlsFileExtensionsMightBeValid) |
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{ |
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//Compare the extension of the file to be recognised with .pls |
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if (aName.Right(KPlsFileExtensionsMightBeValid).CompareF( |
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KPlsExtension)==0) |
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{ |
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iConfidence=ECertain; // is certainly something totally new |
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iDataType=TDataType(KPlsMimeType); |
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IRLOG_DEBUG( "CApaRecognizerEx::DoRecognizeL - Exiting (1)." ); |
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return; |
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} |
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else if (aName.Right(KM3uFileExtensionsMightBeValid).CompareF( |
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KM3uExtension)==0) |
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{ |
3
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RecognizeM3uFileL(aBuffer); |
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IRLOG_DEBUG( "CApaRecognizerEx::DoRecognizeL - Exiting (2)." ); |
0
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return; |
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} |
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IRLOG_DEBUG( "CApaRecognizerEx::DoRecognizeL - Exiting (3)." ); |
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} |
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} |
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|
3
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void CApaRecognizerEx::RecognizeM3uFileL(const TDesC8& /*aBuffer*/) |
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{ |
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// _LIT8(KHttpProtocol, "http"); |
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// _LIT8(KMmsProtocol, "mms"); |
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// _LIT8(KRtspProtocol, "rtsp"); |
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|
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//try to use descriptor method to parse the buffer |
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iConfidence = ECertain; |
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iDataType = TDataType(KM3uMimeType); |
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} |
0
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|
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// ----------------------------------------------------------------------------- |
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// ImplementationTable |
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// violates PC lint error :: Warning 611: Suspicious cast |
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// required by the ECOM framework to correctly identify the instantiation |
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// method pointer to provide to a client's resolution request. |
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// ----------------------------------------------------------------------------- |
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// |
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const TImplementationProxy ImplementationTable[] = |
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{ |
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IMPLEMENTATION_PROXY_ENTRY(KIRRecognizerImplementationUid, |
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CApaRecognizerEx::CreateRecognizerL) |
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}; |
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|
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// --------------------------------------------------------------------------- |
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// ImplementationGroupProxy |
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// Provides access to the implementationtable |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C const TImplementationProxy* ImplementationGroupProxy( |
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TInt& aTableCount) |
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{ |
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IRLOG_DEBUG( "ImplementationGroupProxy" ); |
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aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy); |
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IRLOG_DEBUG( "ImplementationGroupProxy - Exiting." ); |
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return ImplementationTable; |
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} |
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|
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|
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190 |