1mlib_VideoDownSample420(3MLmIeBd)iaLib Library Functimolnisb_VideoDownSample420(3MLIB)
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NAME

6       mlib_VideoDownSample420 - down sampling rate conversion in JFIF
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SYNOPSIS

9       cc [ flag... ] file... -lmlib [ library... ]
10       #include <mlib.h>
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12       mlib_status mlib_VideoDownSample420(mlib_u8 *dst, const mlib_u8 *src0,
13            const mlib_u8 *src1, mlib_s32 n);
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DESCRIPTION

17       The mlib_VideoDownSample420() function performs down sampling rate con‐
18       version used in JPEG File Interchange Format (JFIF).
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PARAMETERS

21       The function takes the following arguments:
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23       dst     Pointer to destination row. dst must be 8-byte aligned.
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26       src0    Pointer to upper source row. src0 must be 8-byte aligned.
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29       src1    Pointer to middle source row. src1 must be 8-byte aligned.
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32       n       Length of source rows. n must be greater than 1.
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RETURN VALUES

36       The function returns MLIB_SUCCESS if successful. Otherwise  it  returns
37       MLIB_FAILURE.
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ATTRIBUTES

40       See attributes(5) for descriptions of the following attributes:
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45       ┌─────────────────────────────┬─────────────────────────────┐
46       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
47       ├─────────────────────────────┼─────────────────────────────┤
48       │Interface Stability          │Committed                    │
49       ├─────────────────────────────┼─────────────────────────────┤
50       │MT-Level                     │MT-Safe                      │
51       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

54       mlib_VideoDownSample420_S16(3MLIB),     mlib_VideoDownSample422(3MLIB),
55       mlib_VideoDownSample422_S16(3MLIB),       mlib_VideoUpSample420(3MLIB),
56       mlib_VideoUpSample420_Nearest(3MLIB),       mlib_VideoUpSample420_Near‐
57       est_S16(3MLIB),   mlib_VideoUpSample420_S16(3MLIB),    mlib_VideoUpSam‐
58       ple422(3MLIB),    mlib_VideoUpSample422_S16(3MLIB),    mlib_VideoUpSam‐
59       ple422_Nearest(3MLIB),        mlib_VideoUpSample422_Nearest_S16(3MLIB),
60       attributes(5)
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64SunOS 5.11                        2 Mar 2007    mlib_VideoDownSample420(3MLIB)
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