Content-type: text/html Man page of mlib_VideoIDCT8x8_U8_S16_Q1

mlib_VideoIDCT8x8_U8_S16_Q1

Section: mediaLib Library Functions (3MLIB)
Updated: 2 Mar 2007
Index Return to Main Contents
 

NAME

mlib_VideoIDCT8x8_U8_S16_Q1 - inverse Discrete Cosine Transform  

SYNOPSIS

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

mlib_status mlib_VideoIDCT8x8_U8_S16_Q1(mlib_u8 *block,
    const mlib_s16 coeffs[64], mlib_s32 stride);

 

DESCRIPTION

The mlib_VideoIDCT8x8_U8_S16_Q1() function can be used only when F(u,v) are nonzero and only when 0 ≤ u < 4 and 0 ≤ v < 4. The stride applies to the block that is part of the frame currently being reconstructed.  

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.

stride

Stride, in bytes, between adjacent rows in a block. stride must be a multiple of eight.

 

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 TYPEATTRIBUTE VALUE

Interface StabilityCommitted

MT-Level

 

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_S16_S16_Q1(3MLIB), mlib_VideoIDCT8x8_U8_S16(3MLIB), mlib_VideoIDCT8x8_U8_S16_DC(3MLIB), mlib_VideoIDCT8x8_U8_S16_NA(3MLIB), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS
RETURN VALUES
ATTRIBUTES
SEE ALSO

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Time: 02:37:50 GMT, October 02, 2010