man pages section 3: Multimedia Library Functions

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Updated: July 2014
 
 

mlib_VideoIDCT8x8_S16_S16_Q1(3MLIB)

Name

mlib_VideoIDCT8x8_S16_S16_Q1 - inverse Discrete Cosine Transform

Synopsis

cc [ flag... ] file... –lmlib [ library... ]
#include <mlib.h>

mlib_status mlib_VideoIDCT8x8_S16_S16_Q1(mlib_s16 block[64],
     const mlib_s16 coeffs[64]);

Description

The mlib_VideoIDCT8x8_S16_S16_Q1() function can be used only when F(u,v) are nonzero for 0 ≤ u < 4 and 0 ≤ v < 4.

Parameters

The function takes the following arguments:

block

Pointer to the current block. block must be 8-byte aligned.

coeffs

Pointer to the source DCT coefficients. coeffs must be 8-byte aligned.

Return Values

The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe

See also

mlib_VideoIDCT_IEEE_S16_S16(3MLIB), mlib_VideoIDCT8x8_S16_S16(3MLIB), mlib_VideoIDCT8x8_S16_S16_DC(3MLIB), mlib_VideoIDCT8x8_S16_S16_NA(3MLIB), mlib_VideoIDCT8x8_U8_S16(3MLIB), mlib_VideoIDCT8x8_U8_S16_DC(3MLIB), mlib_VideoIDCT8x8_U8_S16_NA(3MLIB), mlib_VideoIDCT8x8_U8_S16_Q1(3MLIB), attributes(5)