EncodeHuffmanSpecInitAlloc

Allocates memory and creates Huffman table in a format that is suitable for an encoder.

Syntax

IppStatus ippiEncodeHuffmanSpecInitAlloc_JPEG_8u(const Ipp8u* pListBits, const Ipp8u* pListVals, IppiEncodeHuffmanSpec** ppEncHuffSpec);

Parameters

pListBits	Pointer to the Bits list.
pListVals	Pointer to the Vals list.
ppEncHuffSpec	Pointer to the returned pointer to the Huffman table for the coder.

Description

The function ippiEncodeHuffmanSpecInitAlloc_JPEG is declared in the ippj.h file. This function allocates memory and creates Huffman table in a format that is suitable for the encoder. The Bits and Vals lists are specified in [ISO10918], Annex C, Huffman table specification. To generate the table, the function uses the procedure that is described in [ISO10918], Annex C.2, Conversion of Huffman Tables Specified in Interchange Format to Tables of Codes and Code Lengths.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error condition if one or all specified pointers are NULL.
ippStsJPEGHuffTableErr	Indicates an error condition when the table is initialized. It may happen when raw tables contain inadmissible values.