TJpegImageData Class Reference

class TJpegImageData : public TImageDataBlock

JPEG specific image data variant which holds color sampling and quality factor information.

It can be used with both the JPEG decoder and encoder.

Inherits from

Public Member Functions
	TJpegImageData ()

Private Member Functions
TImageDataBlock *	DuplicateL ( CFrameImageData &)

Inherited Functions
	TImageDataBlock::DataType()const
	TImageDataBlock::TImageDataBlock(TUid)

Public Member Enumerations
enum	TColorSampling { EMonochrome , EColor420 , EColor422 , EColor444 }

Public Attributes
TInt	iQualityFactor
TColorSampling	iSampleScheme

IMPORT_C

TJpegImageData

(

)

Default constructor for this class.

DuplicateL

(

aFrameImageData

)

const [private, virtual]

CFrameImageData & aFrameImageData

Flag reflecting the color sampling type.

EMonochrome	Monochrome.
EColor420	Horizontal and vertical chrominance decimation.
EColor422	Horizontal chrominance decimation.
EColor444	No chrominance decimation.

TInt	iQualityFactor

The quality factor.

This represents the current allowable percentage level of degradation when compressing the image data.

The range is 0 to 100 inclusive.

iSampleScheme

enum TColorSampling The color sampling scheme to use.