Content-type: text/html Man page of mlib_VideoDCT8x8_S16_S16

mlib_VideoDCT8x8_S16_S16

Section: mediaLib Library Functions (3MLIB)
Updated: 9 Nov 2004
Index Return to Main Contents
 

NAME

mlib_VideoDCT8x8_S16_S16 - forward Discrete Cosine Transform (DCT)  

SYNOPSIS

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

mlib_status mlib_VideoDCT8x8_S16_S16(mlib_s16 coeffs[64], const mlib_s16 block[64]);  

DESCRIPTION

The mlib_VideoDCT8x8_S16_S16() function computes the forward DCT for the destination DCT coefficients of data type mlib_s16 and a source block of data type mlib_s16. The input to the DCT routine is the difference between the current block and the reference block. The difference pixel can occupy nine bits and is represented as a 16-bit datum. The source and destination buffer addresses must be 8-byte aligned.  

PARAMETERS

The function takes the following arguments:

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

block Pointer to an 8x8 motion-compensated block that is the difference between the reference block and the current block. block 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 TYPEATTRIBUTE VALUE
Interface StabilityEvolving
MT-LevelMT-Safe

 

SEE ALSO

mlib_VideoDCT2x2_S16_S16(3MLIB), mlib_VideoDCT4x4_S16_S16(3MLIB), mlib_VideoDCT8x8_S16_S16(3MLIB), mlib_VideoDCT8x8_S16_S16_B12(3MLIB), mlib_VideoDCT8x8_S16_S16_NA(3MLIB), mlib_VideoDCT8x8_S16_U8(3MLIB), mlib_VideoDCT8x8_S16_U8_NA(3MLIB), mlib_VideoDCT16x16_S16_S16(3MLIB), mlib_VideoDCT16x16_S16_S16_B10(3MLIB), mlib_VideoDeQuantize_S16(3MLIB), mlib_VideoDeQuantizeInit_S16(3MLIB), mlib_VideoQuantize_S16(3MLIB), mlib_VideoQuantizeInit_S16(3MLIB), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS
RETURN VALUES
ATTRIBUTES
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 02:38:03 GMT, October 02, 2010