/*
* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: QT Bindings for TMS
*
*/
#ifndef QTMS_BUFFER_H
#define QTMS_BUFFER_H
#include <qtms.h>
namespace QTMS
{
/**
* QTMSBuffer class
*
* This interface provides data buffers to QTMS clients. This class allows
* clients to allocate data by themselves or request a specific size of the
* buffer from the factory.
*
* @lib QTMSapi.lib
*
*/
class QTMSBuffer
{
public:
/*
* Destructor
*/
virtual ~QTMSBuffer()
{
}
/**
* Return buffer type.
*
* @param buftype
* Type of the buffer object (QTMS_BUFFER_MEMORY).
*
* @return
* QTMS_RESULT_SUCCESS if the operation was successful otherwise
* system error.
*
*/
virtual gint GetType(QTMSBufferType& buftype) = 0;
/**
* Returns time stamp of the buffer so that the framework can determine
* the time at which this buffer has to be rendered by the output device
* sink.
*
* @param ts
* Time stamp in microseconds.
*
* @return
* QTMS_RESULT_SUCCESS if the operation was successful otherwise
* system error.
*
*/
virtual gint GetTimeStamp(guint64& ts) = 0;
/**
* Sets the time stamp on the Buffer so that the framework can determine
* the time at which this buffer has to be rendered by the output device
* sink.
*
* @param ts
* Time stamp in microseconds.
*
* @return
* QTMS_RESULT_SUCCESS if the operation was successful otherwise
* system error.
*
*/
virtual gint SetTimeStamp(const guint64 ts) = 0;
/**
* Returns size of data in the buffer.
*
* @param size
* Size of data in the buffer.
*
* @return
* QTMS_RESULT_SUCCESS if the operation was successful otherwise
* system error.
*
*/
virtual gint GetDataSize(guint& size) = 0;
/**
* Set size of data in the buffer after filling in by the client.
*
* @param size
* Size of data in the buffer.
*
* @return
* QTMS_RESULT_SUCCESS if the operation was successful otherwise
* system error.
*
*/
virtual gint SetDataSize(const guint size) = 0;
/**
* Return pointer to the memory location of the data associated with this
* buffer.
*
* @param bufptr
* Pointer to the data stored in the buffer.
*
* @return
* QTMS_RESULT_SUCCESS if the operation was successful otherwise
* system error.
*
*/
virtual gint GetDataPtr(guint8*& bufptr) = 0;
};
} //namespace QTMS
#endif //QTMS_BUFFER_H