JPEG_ScanHeader Struct Reference

Collaboration diagram for JPEG_ScanHeader:

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List of all members.

Public Attributes
JPEG_ScanHeader_Component	componentList [JPEG_MAXIMUM_COMPONENTS]
int	componentCount
unsigned char	spectralStart
unsigned char	spectralEnd
unsigned char	successiveApproximationBitPositionHigh
unsigned char	successiveApproximationBitPositionLow

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Detailed Description

Scan header state.

Definition at line 325 of file xf_jpeg.h.

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Member Data Documentation

JPEG_ScanHeader_Component JPEG_ScanHeader::componentList[JPEG_MAXIMUM_COMPONENTS]

Components involved in this scan.

Definition at line 327 of file xf_jpeg.h.

int JPEG_ScanHeader::componentCount

Number of components involved in this scan.

Definition at line 328 of file xf_jpeg.h.

unsigned char JPEG_ScanHeader::spectralStart

In DCT modes of operation, the first DCT coefficient in each block in zig-zag order which shall be coded in the scan (Ss). For sequential DCT this is zero.

Definition at line 329 of file xf_jpeg.h.

unsigned char JPEG_ScanHeader::spectralEnd

Specify the last DCT coefficient in each block in zig-zag order which shall be coded in the scan.

Definition at line 330 of file xf_jpeg.h.

unsigned char JPEG_ScanHeader::successiveApproximationBitPositionHigh

(Ah).

Definition at line 331 of file xf_jpeg.h.

unsigned char JPEG_ScanHeader::successiveApproximationBitPositionLow

(Al).

Definition at line 332 of file xf_jpeg.h.

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

• E:/PPC/XFlib/include/xf_jpeg.h

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