UnpackHuffContext

Performs the bzip2-specific decoding of Huffman context.

Syntax

IppStatus IppStatus ippsUnpackHuffContext_BZ2_8u16u(Ipp32u* pCode, int* pCodeLenBits, Ipp8u** ppSrc, int* pSrcLen, IppDecodeHuffState_BZ2* pDecodeHuffState);

Parameters

pCode	Pointer to the bit buffer.
pCodeLenBits	Number of valid bits in the bit buffer.
ppSrc	Double pointer to the source vector.
pSrcLen	Pointer to the size of source buffer on input, pointer to the resulting length of the source vector on output.
pDecodeHuffState	Pointer to internal state structure for bzip2 specific Huffman decoding.

Description

The function ippsUnpackHuffContext_BZ2 is declared in the ippdc.h file. This function performs the bzip2-specific decoding of the Huffman context. The function uses the bzip2-specific Huffman decoding state structure pDecodeHuffState. This structure must be initialized by the functions ippsDecodeHuffInitAlloc_BZ2 or ippsDecodeHuffInit_BZ2 beforehand.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error if one of the pointers is NULL.
ippStsSizeErr	Indicates an error if length of the destination buffer is less than or equal to 0.
ippStsSrcSizeLessExpected	Indicates a warning if size of the source buffer is insufficient to store all output elements.