DJEncoder Class Reference

abstract base class for compression classes. More...

Inheritance diagram for DJEncoder:

DJCompressIJG12Bit DJCompressIJG16Bit DJCompressIJG8Bit List of all members.

Public Member Functions

 DJEncoder ()
 default constructor
virtual ~DJEncoder ()
 destructor
virtual OFCondition encode (Uint16 columns, Uint16 rows, EP_Interpretation interpr, Uint16 samplesPerPixel, Uint16 *image_buffer, Uint8 *&to, Uint32 &length)=0
 single frame compression routine for 16-bit raw pixel data.
virtual OFCondition encode (Uint16 columns, Uint16 rows, EP_Interpretation interpr, Uint16 samplesPerPixel, Uint8 *image_buffer, Uint8 *&to, Uint32 &length)=0
 single frame compression routine for 8-bit raw pixel data.
virtual Uint16 bytesPerSample () const =0
 returns the number of bytes per sample that will be expected when encoding.
virtual Uint16 bitsPerSample () const =0
 returns the number of bits per sample that will be expected when encoding.

Detailed Description

abstract base class for compression classes.

Definition at line 44 of file djencabs.h.

Member Function Documentation

virtual OFCondition DJEncoder::encode (  Uint16  columns,
Uint16  rows,
EP_Interpretation  interpr,
Uint16  samplesPerPixel,
Uint8 *  image_buffer,
Uint8 *&  to,
Uint32 &  length
)  [pure virtual]
 

single frame compression routine for 8-bit raw pixel data.

May only be called if bytesPerSample() == 1.

Parameters:
columns columns of frame
rows rows of frame
interpr photometric interpretation of input frame
samplesPerPixel samples per pixel of input frame
image_buffer pointer to frame buffer
to compressed frame returned in this parameter upon success
length length of compressed frame (in bytes) returned in this parameter upon success; length guaranteed to be always even.
Returns:
EC_Normal if successful, an error code otherwise.

Implemented in DJCompressIJG12Bit, DJCompressIJG16Bit, and DJCompressIJG8Bit.

virtual OFCondition DJEncoder::encode (  Uint16  columns,
Uint16  rows,
EP_Interpretation  interpr,
Uint16  samplesPerPixel,
Uint16 *  image_buffer,
Uint8 *&  to,
Uint32 &  length
)  [pure virtual]
 

single frame compression routine for 16-bit raw pixel data.

May only be called if bytesPerSample() == 2.

Parameters:
columns columns of frame
rows rows of frame
interpr photometric interpretation of input frame
samplesPerPixel samples per pixel of input frame
image_buffer pointer to frame buffer
to compressed frame returned in this parameter upon success
length length of compressed frame (in bytes) returned in this parameter upon success; length guaranteed to be always even.
Returns:
EC_Normal if successful, an error code otherwise.

Implemented in DJCompressIJG12Bit, DJCompressIJG16Bit, and DJCompressIJG8Bit.

The documentation for this class was generated from the following file:

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