mediaLib Library Functions mlib_VideoDCT16x16_S16_S16(3MLIB)
NAME
mlib_VideoDCT16x16_S16_S16 - forward Discrete Cosine
Transform (DCT)SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include
mlib_status mlib_VideoDCT16x16_S16_S16(mlib_s16 coeffs[256],
const mlib_s16 block[256]);
DESCRIPTION
The input to the DCT routine is the difference between the current block and the reference block. The difference pixelcan 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 16x16 motion-compensated block that
is the difference between the reference block andthe 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 attri-
butes:SunOS 5.11 Last change: 2 Mar 2007 1
mediaLib Library Functions mlib_VideoDCT16x16_S16_S16(3MLIB)
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Interface Stability | Committed ||_____________________________|_____________________________|
| MT-Level | MT-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)
SunOS 5.11 Last change: 2 Mar 2007 2