1mlib_VideoIDCT8x8_S16_S16_DmCe(d3iMaLLIiBb)Library Fmulnicbt_iVoindseoIDCT8x8_S16_S16_DC(3MLIB)
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6 mlib_VideoIDCT8x8_S16_S16_DC - inverse Discrete Cosine Transform
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9 cc [ flag... ] file... -lmlib [ library... ]
10 #include <mlib.h>
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12 mlib_status mlib_VideoIDCT8x8_S16_S16_DC(mlib_s16 *block,
13 const mlib_s16 *coeffs);
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17 The mlib_VideoIDCT8x8_S16_S16_DC() function can be used only when
18 F(0,0) is nonzero. It computes the inverse DCT (called IDCT) for the
19 output IDCT block of data type mlib_s16 and input DCT coefficients of
20 data type mlib_s16. This function is not guaranteed to be
21 IEEE-1180-compliant. The output of the IDCT routine is the difference
22 between the current block and the reference block. The difference pixel
23 can occupy nine bits and is represented as a 16-bit datum. The output
24 must be added to the motion-compensated reference block in order to
25 reconstruct the current block.
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28 The function takes the following arguments:
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30 block Pointer to the current block. block must be 8-byte aligned.
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33 coeffs Pointer to the source DCT coefficients. coeffs must be 8-byte
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38 The function returns MLIB_SUCCESS if successful. Otherwise it returns
39 MLIB_FAILURE.
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42 See attributes(5) for descriptions of the following attributes:
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47 ┌─────────────────────────────┬─────────────────────────────┐
48 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
49 ├─────────────────────────────┼─────────────────────────────┤
50 │Interface Stability │Committed │
51 ├─────────────────────────────┼─────────────────────────────┤
52 │MT-Level │MT-Safe │
53 └─────────────────────────────┴─────────────────────────────┘
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56 mlib_VideoIDCT_IEEE_S16_S16(3MLIB), mlib_VideoIDCT8x8_S16_S16(3MLIB),
57 mlib_VideoIDCT8x8_S16_S16_NA(3MLIB),
58 mlib_VideoIDCT8x8_S16_S16_Q1(3MLIB), mlib_VideoIDCT8x8_U8_S16(3MLIB),
59 mlib_VideoIDCT8x8_U8_S16_DC(3MLIB), mlib_VideoIDCT8x8_U8_S16_NA(3MLIB),
60 mlib_VideoIDCT8x8_U8_S16_Q1(3MLIB), attributes(5)
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64SunOS 5.11 2 Mar 2007mlib_VideoIDCT8x8_S16_S16_DC(3MLIB)