Class TJpegQTable

class TJpegQTable : public TImageDataBlock;

Description

JPEG specific image data variant which holds QTable info.

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

Derivation

• TImageDataBlock - The abstract base class for all format-specific image data variants.

• TJpegQTable - JPEG specific image data variant which holds QTable info.

Members

Defined in TJpegQTable:

• DuplicateL(CFrameImageData &)const
• EChromaTableChrominance table.
• ELumaTableLuminance table.
• TJpegQTable()Default constructor for this class.
• TQTableIndexFlag reflecting the type of Q or quantization table.
• iEntriesThe number of entries in the Q table.
• iTableIndexThe type of Q table.

Inherited from TImageDataBlock:

• DataType()constReturns the data type of the current TImageDataBlock object.
• TImageDataBlock(TUid)Constructs and initialises the TImageDataBlock object to the data type specified...

IMPORT_C TJpegQTable();

Description

Default constructor for this class.

private: virtual TImageDataBlock* DuplicateL(CFrameImageData &aFrameImageData) const;

Description

Parameters

CFrameImageData &aFrameImageData

Return value

TImageDataBlock *

TQTableIndex

Description

Flag reflecting the type of Q or quantization table.

ELumaTable Luminance table. EChromaTable Chrominance table.

TInt iTableIndex;

Description

The type of Q table.

TBuf8< KJpgQTableEntries > iEntries;

Description

The number of entries in the Q table.