mlib_VideoDCT8x8_S16_S16_BmediaLib)Library mlib_VideoDCT8x8_S16_S16_B12(3MLIB)NAMEmlib_VideoDCT8x8_S16_S16_B12 - forward Discrete Cosine Transform (DCT)
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoDCT8x8_S16_S16_B12(
mlib_s16 coeffs[64], const mlib_s16 block[64]);
DESCRIPTION
This function computes the forward DCT for the destination DCT coeffi‐
cients of data type mlib_s16 and source block of data type mlib_s16.
The source to the DCT routine can occupy up to 12 bits for each of its
elements.
The source and destination buffer addresses must be 8-byte aligned.
This function can be used in JPEG with 12-bit precision.
PARAMETERS
The function takes the following arguments:
coeffs Pointer to the output DCT coefficients. Note that coeffs must
be 8-byte aligned.
block Pointer to an 8x8 block. Note that 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 TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOmlib_VideoDCT2x2_S16_S16(3MLIB), mlib_VideoDCT4x4_S16_S16(3MLIB),
mlib_VideoDCT8x8_S16_S16_B10(3MLIB),
mlib_VideoDCT8x8_S16_S16_B10_NA(3MLIB), mlib_VideoDCT8x8_S16_U8(3MLIB),
mlib_VideoDCT8x8_S16_U8_NA(3MLIB), mlib_VideoDCT16x16_S16_S16(3MLIB),
mlib_VideoDCT16x16_S16_S16_B10(3MLIB), attributes(5)SunOS 5.10 2 Mar 200mlib_VideoDCT8x8_S16_S16_B12(3MLIB)