VAIQMatrixBufferHEVC Struct Reference

HEVC Inverse Quantization Matrix Buffer Structure. More...

#include <va_dec_hevc.h>

Public Attributes
uint8_t	ScalingList4x4 [6][16]
	scaling lists, corresponds to same HEVC spec syntax element ScalingList[ i ][ MatrixID ][ j ]. More...
uint8_t	ScalingList8x8 [6][64]
	8x8 scaling, correspongs i = 1, MatrixID is in the range of 0 to 5, inclusive. And j is in the range of 0 to 63, inclusive.
uint8_t	ScalingList16x16 [6][64]
	16x16 scaling, correspongs i = 2, MatrixID is in the range of 0 to 5, inclusive. And j is in the range of 0 to 63, inclusive.
uint8_t	ScalingList32x32 [2][64]
	32x32 scaling, correspongs i = 3, MatrixID is in the range of 0 to 1, inclusive. And j is in the range of 0 to 63, inclusive.
uint8_t	ScalingListDC16x16 [6]
	DC values of the 16x16 scaling lists, corresponds to HEVC spec syntax scaling_list_dc_coef_minus8[ sizeID - 2 ][ matrixID ] + 8 with sizeID = 2 and matrixID in the range of 0 to 5, inclusive.
uint8_t	ScalingListDC32x32 [2]
	DC values of the 32x32 scaling lists, corresponds to HEVC spec syntax scaling_list_dc_coef_minus8[ sizeID - 2 ][ matrixID ] + 8 with sizeID = 3 and matrixID in the range of 0 to 1, inclusive.
uint32_t	va_reserved [VA_PADDING_LOW]
	Reserved bytes for future use, must be zero.

Detailed Description

HEVC Inverse Quantization Matrix Buffer Structure.

This structure is sent once per frame, and only when scaling_list_enabled_flag = 1. When sps_scaling_list_data_present_flag = 0, app still needs to send in this structure with default matrix values.

Matrix entries are in raster scan order which follows HEVC spec.

Member Data Documentation

ScalingList4x4

uint8_t VAIQMatrixBufferHEVC::ScalingList4x4[6][16]

scaling lists, corresponds to same HEVC spec syntax element ScalingList[ i ][ MatrixID ][ j ].

4x4 scaling, correspongs i = 0, MatrixID is in the range of 0 to 5, inclusive. And j is in the range of 0 to 15, inclusive.

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

• va_dec_hevc.h