1mlib_VideoDCT8x8Quantize_S1m6e_dUi8a_LNiAb(3LMiLbmIrlBai)rby_VFiudnecotDiCoTn8sx8Quantize_S16_U8_NA(3MLIB)
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6 mlib_VideoDCT8x8Quantize_S16_U8_NA - forward Discrete Cosine Transform
7 (DCT) and quantization
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10 cc [ flag... ] file... -lmlib [ library... ]
11 #include <mlib.h>
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13 mlib_status mlib_VideoDCT8x8Quantize_S16_U8_NA(
14 mlib_s16 coeffs[64], const mlib_u8 *block,
15 const mlib_d64 dqtable[64], mlib_s32 stride);
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19 The mlib_VideoDCT8x8Quantize_S16_U8_NA() function computes the forward
20 DCT and then quantizes the DCT coefficients. It's a combination of
21 mlib_VideoDCT8x8_S16_U8_NA() and mlib_VideoQuantize_S16() for better
22 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 coeffs Pointer to the quantized DCT coefficients.
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37 block Pointer to an 8x8 block.
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40 dqtable Pointer to the quantization table generated by mlib_Video‐
41 QuantizeInit_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_VideoDCT8x8Quantize_S16_S16_B12(3MLIB), mlib_VideoDCT8x8Quan‐
67 tize_S16_S16_B12_NA(3MLIB), mlib_VideoDCT8x8Quantize_S16_U8(3MLIB),
68 mlib_VideoQuantizeInit_S16(3MLIB), attributes(5)
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72SunOS 5.11 2 Mamrli2b0_0V7ideoDCT8x8Quantize_S16_U8_NA(3MLIB)