mlib_VideoQuantize_S16 man page on SunOS
[printable version]
mlib_VideoQuantize_S16(3MLmediaLib Library Functimlib_VideoQuantize_S16(3MLIB)
NAME
mlib_VideoQuantize_S16 - quantization of forward Discrete Cosine Trans‐
form (DCT) coefficients
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoQuantize_S16(mlib_s16 icoeffs[64],
const mlib_d64 dqtable[64]);
DESCRIPTION
The mlib_VideoQuantize_S16() function performs quantization on DCT
coefficients.
The following equation is used:
icoeffs[i] = icoeffs[i] * dqtable[i]; 0 ≤ i < 64
PARAMETERS
The function takes the following arguments:
icoeffs Pointer to the output DCT coefficients:
-2048 < icoeffs[i] < 2048
Note that icoeffs must be 8-byte aligned.
dqtable Pointer to quantizer table coefficients.
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 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_VideoQuantizeInit_S16(3MLIB),
attributes(5)
SunOS 5.10 2 Mar 2007 mlib_VideoQuantize_S16(3MLIB)
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