This section describes Intel IPP functions that perform sampling and are specific for JPEG codec. These functions are listed in Table “Sampling Functions”.
| Function Base Name | Description |
|---|---|
| SampleDownH2V1_JPEG | Performs 2:1 horizontal sampling and 1:1 vertical sampling of an image. |
| SampleDownH2V2_JPEG | Performs 2:1 horizontal sampling and 2:1 vertical sampling of an image. |
| SampleDownRowH2V1_Box_JPEG | Performs 2:1 horizontal sampling and 1:1 vertical sampling of an image row. |
| SampleDownRowH2V2_Box_JPEG | Performs 2:1 horizontal sampling and 2:1 vertical sampling of an image row. |
| SampleUpH2V1_JPEG | Performs 1:2 horizontal sampling and 1:1 vertical sampling of an image. |
| SampleUpH2V2_JPEG | Performs 1:2 horizontal sampling and 1:2 vertical sampling of an image. |
| SampleUpRowH2V1_Triangle_JPEG | Performs 1:2 horizontal sampling and 1:1 vertical sampling of an image row. |
| SampleUpRowH2V2_Triangle_JPEG | Performs 1:2 horizontal sampling and 1:2 vertical sampling of an image row. |
| SampleDown444LS_MCU | Creates 444 MCU with level shift |
| SampleDown422LS_MCU | Creates 422 MCU with level shift |
| SampleDown411LS_MCU | Creates 411 MCU with level shift |
| SampleUp444LS_MCU | Creates pixel-order image from 444 MCU with level shift |
| SampleUp422LS_MCU | Creates pixel-order image from 422 MCU with level shift |
| SampleUp411LS_MCU | Creates pixel-order image from 411 MCU with level shift |
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