See the figure below for VC-1 decoding scheme. The functions not in brown color are auxiliary and are called only once in the process of deblocking.
Function Short Name |
Description |
|---|---|
Inverse Transform |
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Transform8x8Inv_VC1, Transform4x8Inv_VC1, Transform8x4Inv_VC1, Transform4x4Inv_VC1 |
Perform inverse transform of blocks of respective size according to VC-1 standard. |
Interpolation |
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Performs bilinear quarter-pel interpolation. |
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Performs bicubic quarter-pel interpolation. |
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Performs intensity compensation and bilinear quarter-pel interpolation for motion estimation of the luma or chroma component using an entire motion vector. |
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Performs intensity compensation and bicubic quarter-pel interpolation for motion estimation of the luma or chroma component using an entire motion vector. |
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Smoothing |
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Performs smoothing filtering on the vertical edge (internal or external) of luma 16X16 macroblocks. |
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Performs smoothing filtering on the horizontal edge (internal or external) of luma 16X16 macroblocks. |
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Performs smoothing filtering on the vertical edge (internal or external) of chroma 8X8 blocks. |
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Performs smoothing filtering on the horizontal edge (internal or external) of chroma 8X8 blocks. |
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Deblocking |
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Performs deblocking filtering on the vertical edge (internal or external) of luma 16X16 macroblocks. |
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Performs deblocking filtering on the horizontal edge (internal or external) of luma 16X16 macroblocks. |
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Performs deblocking filtering on the vertical edge (internal or external) of chroma 8X8 macroblocks. |
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Performs deblocking filtering on the horizontal edge (internal or external) of chroma 8X8 macroblocks. |
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Dequantization |
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Perform uniform/nonuniform dequantization of 8X8 intra blocks. |
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Perform uniform/nonuniform dequantization of inter blocks. |
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Range Reduction |
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Performs range map transformation. |
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