mlib_VideoDownSample420(3MmediaLib Library Functmlib_VideoDownSample420(3MLIB)NAMEmlib_VideoDownSample420 - down sampling rate conversion in JFIF
SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>
mlib_status mlib_VideoDownSample420(mlib_u8 *dst, const mlib_u8 *src0,
const mlib_u8 *src1, mlib_s32 n);
DESCRIPTION
The mlib_VideoDownSample420() function performs down sampling rate con‐
version used in JPEG File Interchange Format (JFIF).
PARAMETERS
The function takes the following arguments:
dst Pointer to destination row. dst must be 8-byte aligned.
src0 Pointer to upper source row. src0 must be 8-byte aligned.
src1 Pointer to middle source row. src1 must be 8-byte aligned.
n Length of source rows. n must be greater than 1.
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_VideoDownSample420_S16(3MLIB), mlib_VideoDownSample422(3MLIB),
mlib_VideoDownSample422_S16(3MLIB), mlib_VideoUpSample420(3MLIB),
mlib_VideoUpSample420_Nearest(3MLIB), mlib_VideoUpSample420_Near‐
est_S16(3MLIB), mlib_VideoUpSample420_S16(3MLIB), mlib_VideoUpSam‐
ple422(3MLIB), mlib_VideoUpSample422_S16(3MLIB), mlib_VideoUpSam‐
ple422_Nearest(3MLIB), mlib_VideoUpSample422_Nearest_S16(3MLIB),
attributes(5)SunOS 5.11 2 Mar 2007 mlib_VideoDownSample420(3MLIB)