1mlib_VideoDeQuantizeIDCT8x8m_eUd8i_aSL1i6b_mNLlAii(bb3r_MaVLriIydBe)FouDnecQtuiaonntsizeIDCT8x8_U8_S16_NA(3MLIB)
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6 mlib_VideoDeQuantizeIDCT8x8_U8_S16_NA - dequantization and inverse Dis‐
7 crete Cosine Transform (IDCT)
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10 cc [ flag... ] file... -lmlib [ library... ]
11 #include <mlib.h>
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13 mlib_status mlib_VideoDeQuantizeIDCT8x8_U8_S16_NA(
14 mlib_u8 *block, const mlib_s16 coeffs[64],
15 const mlib_d64 dqtable[64], mlib_s32 stride);
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19 The mlib_VideoDeQuantizeIDCT8x8_U8_S16_NA() function dequantizes the
20 quantized DCT coefficients and then computes the inverse DCT. It's a
21 combination of mlib_VideoDeQuantize_S16() and
22 mlib_VideoIDCT8x8_U8_S16_NA() for better performance.
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25 This function requires no special address alignment.
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28 This function can be used in JPEG with 8-bit precision, or in MPEG for
29 the intra mode.
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32 The function takes the following arguments:
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34 block Pointer to an 8x8 block.
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37 coeffs Pointer to the input quantized DCT coefficients.
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40 dqtable Pointer to the dequantization table generated by
41 mlib_VideoDeQuantizeInit_S16().
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44 stride Stride in bytes between adjacent rows in the block.
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48 The function returns MLIB_SUCCESS if successful. Otherwise it returns
49 MLIB_FAILURE.
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52 See attributes(5) for descriptions of the following attributes:
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57 ┌─────────────────────────────┬─────────────────────────────┐
58 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
59 ├─────────────────────────────┼─────────────────────────────┤
60 │Interface Stability │Committed │
61 ├─────────────────────────────┼─────────────────────────────┤
62 │MT-Level │MT-Safe │
63 └─────────────────────────────┴─────────────────────────────┘
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66 mlib_VideoDeQuantizeIDCT8x8_S16_S16_B12(3MLIB), mlib_VideoDeQuantizeI‐
67 DCT8x8_S16_S16_B12_NA(3MLIB), mlib_VideoDeQuantizeI‐
68 DCT8x8_U8_S16(3MLIB), mlib_VideoDeQuantizeInit_S16(3MLIB),
69 attributes(5)
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73SunOS 5.11 2mlMiabr_V2i0d0e7oDeQuantizeIDCT8x8_U8_S16_NA(3MLIB)