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// Copyright (c) 2005-2009 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:
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//
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/**
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@file
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@publishedPartner
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@released
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*/
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#ifndef MDFOUTPUTPORT_H
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#define MDFOUTPUTPORT_H
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#include <e32base.h>
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#include <mdf/mdfcommon.h>
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class CMdfProcessingUnit;
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class CMMFBuffer;
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class MMdfOutputPort;
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class MMdfInputPort;
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class MMdfInputPortObserver;
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class TPuConfig;
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/**
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Codec API Output Port observer class.
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*/
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class MMdfOutputPortObserver
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{
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public:
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/**
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Called by the Codec API Output Port when MopReadData() has completed.
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@param aOutputPort
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The Output Port which sent the callback.
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@param aBuffer
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The buffer read by the Output Port.
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@param aErrorCode
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An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual void MopoReadDataComplete(const MMdfOutputPort* aOutputPort,
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CMMFBuffer* aBuffer, TInt aErrorCode) = 0;
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/**
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Called by the Codec API Output Port when MopDisconnectTunnel() has completed.
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@param aOutputPort
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The Output Port which sent the callback.
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@param aErrorCode
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An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual void MopoDisconnectTunnelComplete(const MMdfOutputPort* aOutputPort,
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TInt aErrorCode) = 0;
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/**
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Called by the Codec API Output Port when MopRestartTunnel() has completed.
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@param aOutputPort
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The Ouput Port which sent the callback.
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@param aErrorCode
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An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual void MopoRestartTunnelComplete(const MMdfOutputPort* aOutputPort,
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TInt aErrorCode) = 0;
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};
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/**
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Codec API Output Port interface.
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*/
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class MMdfOutputPort
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{
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public:
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/**
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Synchronous function used to configure the Output Port.
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@param aConfiguration
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Holds the configuration parameters for the Output Port.
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@return An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual TInt MopConfigure(const TPuConfig& aConfiguration) = 0;
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/**
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Synchronous method which gets a configuration structure for the Output Port
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@param aConfigurationSetup
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The reference to the structure that is to contain the configuration information
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@return An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual TInt MopGetConfig(TPuConfig& aConfigurationSetup) = 0;
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/**
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Synchronous function used to initialise the Output Port.
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*/
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virtual void MopInitialize() = 0;
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/**
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Synchronous function used to set the observer for the Output Port.
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@param aOutputPortObserver
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The observer of the Output Port.
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*/
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virtual void MopSetObserver(const MMdfOutputPortObserver& aOutputPortObserver) = 0;
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/**
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Synchronous function used to instruct the Output Port to create a buffer.
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@param aBufferSize
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The size of the buffer to be created.
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@return A pointer to the newly created buffer.
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*/
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virtual CMMFBuffer* MopCreateBuffer(TInt aBufferSize) = 0;
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/**
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Synchronous function used to instruct the Output Port to use the buffer
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passed in the function's argument.
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@param aBuffer
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The buffer to be used by the Output Port.
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@return An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual TInt MopUseBuffer(CMMFBuffer& aBuffer) = 0;
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/**
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Synchronous function used to instruct the Output Port to free the buffer
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passed in the function's argument.
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@param aBuffer
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The buffer to be freed
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@return An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual TInt MopFreeBuffer(CMMFBuffer* aBuffer) = 0;
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/**
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Synchronous function used to request the set up of a tunnel between this Output Port
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and an Input Port.
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@param aInputPortToBeConnectedTo
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Reference to the Input Port to be connected to.
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@param aTunnelFlags
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Control flags for tunneling
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@param aSupplierType
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Specifies the supplier of the buffers for the tunnel.
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@return An error code indicating if the function call was successful. KErrNone on success, otherwise
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another of the system-wide error codes.
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*/
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virtual TInt MopTunnelRequest(const MMdfInputPort& aInputPortToBeConnectedTo,
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TTunnelFlags& aTunnelFlags, TSupplierType& aSupplierType) = 0;
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/**
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Asynchronous function used to read data from the Output Port.
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@param aBuffer
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Reference to the buffer containing data.
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*/
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virtual void MopReadData(CMMFBuffer& aBuffer) = 0;
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/**
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Asynchronous function used to disconnect a tunnelled port, and thus stop the data processing.
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*/
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virtual void MopDisconnectTunnel() = 0;
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/**
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Asynchronous function used to restart the data processing of a tunnelled port.
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*/
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virtual void MopRestartTunnel() = 0;
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/**
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Synchronous function used to find out if an Output Port is tunnelled or not.
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@return ETrue if the Input Port is tunnelled, EFalse otherwise.
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*/
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virtual TBool MopIsTunnelled() const = 0;
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/**
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Synchronous function used to get the Output Port index
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@return The Input Port index.
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*/
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virtual TInt MopIndex() const = 0;
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/**
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Synchronous function used to get the size of the buffer(s) used by the Output Port.
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@return The Output Port's buffer size.
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*/
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virtual TUint32 MopBufferSize() const = 0 ;
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/**
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Request extension feature. This is intended to provide additional features.
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@param aUid
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Used to indicate which interface is required.
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@return Standard error code. KErrNotSupported is used to indicate that the particular
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plugin is used.
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*/
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virtual TInt MopCreateCustomInterface(TUid aUid) = 0;
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/**
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Return previously created extension.
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This returns a custom interface whose ownership is not transferred to the caller. This
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should only be used if CreateCustomInterface() has already been called for the same UID
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value. This means that any construction for that interface has already been called,
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and thus this call cannot fail.
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@param aUid
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Used to indicate which interface is required.
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@return The requested interface, or NULL if not known.
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@see MopCreateCustomInterface()
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*/
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virtual TAny* MopCustomInterface(TUid aUid) = 0;
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};
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#endif // MDFOUTPUTPORT_H
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