mlib_VideoDCT8x8_S16_U8_NA(3MLIB) mediaLib Library Functions mlib_VideoDCT8x8_S16_U8_NA(3MLIB)
NAME
mlib_VideoDCT8x8_S16_U8_NA - forward Discrete Cosine Transform (DCT)
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoDCT8x8_S16_U8_NA(mlib_s16 coeffs[64], const mlib_u8 *block, mlib_s32 stride);
DESCRIPTION
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. This function requires no special address alignment.
PARAMETERS
The function takes the following arguments:
coeffs Pointer to the destination DCT coefficients.
block Pointer to an 8x8 motion-compensated block that is the difference between the reference block and the current block.
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 TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
|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 5.10 9 Nov 2004 mlib_VideoDCT8x8_S16_U8_NA(3MLIB)