GetHuffmanStatistics8x8

Computes Huffman symbols statistics for the baseline encoding.

Syntax

IppStatus ippiGetHuffmanStatistics8x8_JPEG_16s_C1(const Ipp16s* pSrc, int pDcStatistics[256], int pAcStatistics[256], Ipp16s* pLastDC);

Parameters

pSrc	Pointer to the 8x8 block of the quantized DCT coefficients.
pDcStatistics	Pointer to the Huffman symbols statistics buffer for the DC coefficients.
pAcStatistics	Pointer to the Huffman symbols statistics buffer for the AC coefficients.
pLastDC	Pointer to the DC coefficient of the previous 8x8 block.

Description

The function ippiGetHuffmanStatistics8x8_JPEG is declared in the ippj.h file. This function computes the statistics of Huffman symbols for an 8x8 block of the quantized DCT coefficients for the baseline encoding.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error condition if one or both of the specified pointers are NULL.
ippStsJPEGDCTRangeErr	Indicates an error condition if a DCT coefficient is out of the allowed range (-1023..1023).