2.2.4.2.1.5.2 RFX_COMPONENT_CODEC_QUANT

The RFX_COMPONENT_CODEC_QUANT structure stores information regarding the scalar quantization values for the ten sub-bands in the three-level discrete wavelet transform (DWT) decomposition.

When embedded within the quantVals field of the RFX_PROGRESSIVE_REGION (section 2.2.4.2.1.5) structure, the RFX_COMPONENT_CODEC_QUANT structure contains the scalar quantization values. Each field in this structure MUST have a value in the range of 0 to 15 (inclusive).

When embedded within the yQuantValues, cbQuantValues, and crQuantValues fields of the RFX_PROGRESSIVE_CODEC_QUANT (section 2.2.4.2.1.5.1) structure, the RFX_COMPONENT_CODEC_QUANT structure contains values to be added to the quantization values specified in the quantVals field of the RFX_PROGRESSIVE_REGION structure. Each field in this structure MUST have a value in the range of 0 to 8 (inclusive).

Note that the RFX_COMPONENT_CODEC_QUANT structure differs from the TS_RFX_CODEC_QUANT ([MS-RDPRFX] section 2.2.2.1.5) structure with respect to the order of the bands.


0


1


2


3


4


5


6


7


8


9

1
0


1


2


3


4


5


6


7


8


9

2
0


1


2


3


4


5


6


7


8


9

3
0


1

LL3

HL3

LH3

HH3

HL2

LH2

HH2

HL1

LH1

HH1

LL3 (4 bits):  A 4-bit, unsigned integer. The LL quantization factor for the level-3 DWT sub-band.

HL3 (4 bits):  A 4-bit, unsigned integer. The HL quantization factors for the level-3 DWT sub-band.

LH3 (4 bits):  A 4-bit, unsigned integer. The LH quantization factor for the level-3 DWT sub-band.

HH3 (4 bits):  A 4-bit, unsigned integer. The HH quantization factor for the level-3 DWT sub-band.

HL2 (4 bits):  A 4-bit, unsigned integer. The HL quantization factor for the level-2 DWT sub-band.

LH2 (4 bits):  A 4-bit, unsigned integer. The LH quantization factor for the level-2 DWT sub-band.

HH2 (4 bits):  A 4-bit, unsigned integer. The HH quantization factor for the level-2 DWT sub-band.

HL1 (4 bits):  A 4-bit, unsigned integer. The HL quantization factor for the level-1 DWT sub-band.

LH1 (4 bits):  A 4-bit, unsigned integer. The LH quantization factor for the level-1 DWT sub-band.

HH1 (4 bits):  A 4-bit, unsigned integer. The HH quantization factor for the level-1 DWT sub-band.