OpenMAX Bellagio 0.9.3
OMX_IMAGE_PARAM_QUANTIZATIONTABLETYPE Struct Reference

#include <OMX_Image.h>

Data Fields

OMX_U32 nSize
OMX_VERSIONTYPE nVersion
OMX_U32 nPortIndex
OMX_IMAGE_QUANTIZATIONTABLETYPE eQuantizationTable
OMX_U8 nQuantizationMatrix [64]

Detailed Description

JPEG quantization tables are used to determine DCT compression for YUV data, as an alternative to specifying Q factor, providing exact control of compression

STRUCT MEMBERS: nSize : Size of the structure in bytes nVersion : OMX specification version information nPortIndex : Port that this structure applies to eQuantizationTable : Quantization table type nQuantizationMatrix[64] : JPEG quantization table of coefficients stored in increasing columns then by rows of data (i.e. row 1, ... row 8). Quantization values are in the range 0-255 and stored in linear order (i.e. the component will zig-zag the quantization table data if required internally)

Definition at line 275 of file OMX_Image.h.

Field Documentation

◆ eQuantizationTable

OMX_IMAGE_QUANTIZATIONTABLETYPE OMX_IMAGE_PARAM_QUANTIZATIONTABLETYPE::eQuantizationTable

Definition at line 279 of file OMX_Image.h.

◆ nPortIndex

OMX_U32 OMX_IMAGE_PARAM_QUANTIZATIONTABLETYPE::nPortIndex

Definition at line 278 of file OMX_Image.h.

◆ nQuantizationMatrix

OMX_U8 OMX_IMAGE_PARAM_QUANTIZATIONTABLETYPE::nQuantizationMatrix[64]

Definition at line 280 of file OMX_Image.h.

◆ nSize

OMX_U32 OMX_IMAGE_PARAM_QUANTIZATIONTABLETYPE::nSize

Definition at line 276 of file OMX_Image.h.

◆ nVersion

OMX_VERSIONTYPE OMX_IMAGE_PARAM_QUANTIZATIONTABLETYPE::nVersion

Definition at line 277 of file OMX_Image.h.


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

Generated for OpenMAX Bellagio rel. 0.9.3 by  doxygen 1.5.1
SourceForge.net Logo