CMdaImageDescToBitmapUtility Class Reference

#include <mdaimageconverter.h>

Link against: mediaclientimage.lib

class CMdaImageDescToBitmapUtility : public CMdaImageDataReadUtility

Inherits from

CMdaImageDescToBitmapUtility
- CMdaImageDataReadUtility
  - CMdaImageUtility
    - CActive
      - CBase
    - MMdaObjectStateChangeObserver

Public Member Functions
IMPORT_C CMdaImageDescToBitmapUtility *	NewL(MMdaImageUtilObserver &, CMdaServer *)
IMPORT_C void	OpenL(const TDesC8 &, TMdaClipFormat , TMdaPackage , TMdaPackage *)

Inherited Attributes
	CActive::iStatus
	CMdaImageUtility::iProperties

Inherited Enumerations
	CActive:TPriority

Inherited Functions
	CActive::CActive(TInt)
	CActive::Cancel()
	CActive::Deque()
	CActive::Extension_(TUint,TAny &,TAny )
	CActive::IsActive()const
	CActive::IsAdded()const
	CActive::Priority()const
	CActive::RunError(TInt)
	CActive::SetActive()
	CActive::SetPriority(TInt)
	CActive::~CActive()
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CMdaImageDataReadUtility::CancelConvertL()
	CMdaImageDataReadUtility::ConvertL(CFbsBitmap &,CFbsBitmap &,TInt)
	CMdaImageDataReadUtility::ConvertL(CFbsBitmap &,TInt)
	CMdaImageDataReadUtility::DoCancel()
	CMdaImageDataReadUtility::DoClose()
	CMdaImageDataReadUtility::DoOpenL()
	CMdaImageDataReadUtility::FrameCommentL(TInt)
	CMdaImageDataReadUtility::ImageReadUtil_Reserved2()
	CMdaImageDataReadUtility::ImageReadUtil_Reserved3()
	CMdaImageDataReadUtility::ImageReadUtil_Reserved4()
	CMdaImageDataReadUtility::RunL()
	CMdaImageDataReadUtility::~CMdaImageDataReadUtility()
	CMdaImageUtility::CMdaImageUtility()
	CMdaImageUtility::Close()
	CMdaImageUtility::FrameCount()const
	CMdaImageUtility::FrameInfo(TInt,TFrameInfo &)const
	CMdaImageUtility::ImageUtil_Reserved1()
	CMdaImageUtility::ImageUtil_Reserved2()
	CMdaImageUtility::ImageUtil_Reserved3()
	CMdaImageUtility::ImageUtil_Reserved4()
	CMdaImageUtility::MoscoStateChangeEvent(CBase *,TInt,TInt,TInt)
	CMdaImageUtility::SelfComplete(TInt)
	CMdaImageUtility::~CMdaImageUtility()

Detailed Description

Deprecated7.0s - Replaced by Image Conversion library - use CImageDecoder::DataNewL()

Implements format conversion of a descriptor-based image to a bitmap.

This class has been deprecated in 7.0s, it's functionality is now part of the Image Converter Library. For more information see CImageDecoder.

The class provides functions to create an instance of this conversion utility and to open and prepare the image data.Conversion is performed using the image conversion utility interface.

Since: 5.0

Member Function Documentation

NewL ( MMdaImageUtilObserver &, CMdaServer * )

IMPORT_C CMdaImageDescToBitmapUtility *	NewL	(	MMdaImageUtilObserver &	aObserver,
			CMdaServer *	aServer = 0
		)	[static]

Constructs a new instance of the descriptor-based image to bitmap conversion utility object.

The function leaves if this object cannot be created.

Parameters
aObserver	The image utility observer interface.
aServer	A pointer to a server object. The default is NULL which means that one is automatically constructed and owned by this conversion utility object. If not NULL, the client must construct, and be responsible for, the server object. This option may be more efficient if a number of conversion utility objects are to be created.

Return Value: A pointer to the new instance of the descriptor-based image to bitmap conversion utility

OpenL ( const TDesC8 &, TMdaClipFormat , TMdaPackage , TMdaPackage * )

IMPORT_C void	OpenL	(	const TDesC8 &	aDescriptor,
			TMdaClipFormat *	aFormat = 0,
			TMdaPackage *	aCodec = 0,
			TMdaPackage *	aExtra = 0
		)

Opens the descriptor-based image.

The function is asynchronous. When the open operation is complete, successfully or otherwise, the callback function MMdaImageUtilObserver::MiuoOpenComplete() is called.Open must complete successfully before starting any conversion operation. The function can complete with KErrUnderflow, if there is insufficient information in the descriptor. Typically, this occurs when using the descriptor as a cache. In this situation, open should be performed repeatedly until the descriptor has accumulated enough information for the operation to complete with KErrNone.

Note: The optional parameters can be used to force the Media Server to interpret the descriptor-based data as being of a specific type. This is necessary for formats such as WAP wireless bitmap where the supplied descriptor does not contain a uniquely recognisable signature.