acldvppVpcResizeAsync

Applicability

Product	Supported
Atlas 350 Accelerator Card	☓
Atlas A3 training product / Atlas A3 inference product	√
Atlas A2 training product / Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	√
Atlas inference product	√
Atlas training product	√

Function Description

Resizes the input image to the output image size. This API is asynchronous.

Prototype

      
           aclError acldvppVpcResizeAsync(acldvppChannelDesc *channelDesc,
acldvppPicDesc *inputDesc,
acldvppPicDesc *outputDesc,
acldvppResizeConfig *resizeConfig,
aclrtStream stream)

Parameters

Parameter	Input/Output	Description
channelDesc	Input	Pointer to the channel description. The value must be the same as that of channelDesc specified when the acldvppCreateChannel API is called to create a channel.
inputDesc	Input	Pointer to the input image description. Call the acldvppCreatePicDesc API to create the image description. Call acldvppSetPicDesc series to set the image description (including the buffer address, buffer size, image format, and image resolution).
outputDesc	Input/Output	Pointer to the output image description. When outputDesc is used as an input, the user needs to: Call the acldvppCreatePicDesc API to create the image description. Call acldvppSetPicDesc series to set the image description (including the buffer address, buffer size, image format, and image resolution).
resizeConfig	Input	Pointer to the image resizing configuration. Create image resizing configuration data by calling acldvppCreateResizeConfig.
stream	Input	Stream. For details about the type definition, see aclrtStream.

Returns

If the return value is 0, the task is successfully delivered. If the return value is not 0, the task fails to be delivered. For details, see aclError.

Restrictions

Model	Restriction
Atlas training product	Input image resolution and format: If the input image resolution is within the range of [10 x 6, 4096 x 4096], the input image format described in Restrictions on Image Formats, Width and Height Alignment, and Buffers is supported. When the width or height of the input image is within the range of (4096, 8192], the supported formats are as follows: The following enum values of acldvppPixelFormat are supported: PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1, // YUV420SP NV12 8bit PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2, // YUV420SP NV21 8bit If the width/height of the input image is not 2-pixel aligned, the VPC automatically rounds down the width/height to the nearest multiple of 2 pixels. For example, for a 15 × 15 input image, the VPC rounds down the image resolution to 14 × 14 before resizing the image. For details about the output image resolution and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. For details about the restrictions on the width and height alignment and buffer size of each image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
Atlas inference product	Input image resolution and format: If the input image resolution is within the range of [10 x 6, 4096 x 4096], the input image format described in Restrictions on Image Formats, Width and Height Alignment, and Buffers is supported. When the width or height of the input image is within the range of (4096, 8192], the supported formats are as follows: The following enum values of acldvppPixelFormat are supported: PIXEL_FORMAT_YUV_400 = 0, // YUV400 8bit PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1, // YUV420SP NV12 8bit PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2, // YUV420SP NV21 8bit PIXEL_FORMAT_YUV_SEMIPLANAR_422 = 3, // YUV422SP 8bit PIXEL_FORMAT_YVU_SEMIPLANAR_422 = 4, // YVU422SP 8bit PIXEL_FORMAT_YUV_SEMIPLANAR_444 = 5, // YUV444SP 8bit PIXEL_FORMAT_YVU_SEMIPLANAR_444 = 6, // YVU444SP 8bit PIXEL_FORMAT_YUYV_PACKED_422 = 7, // YUV422Packed YUYV 8bit PIXEL_FORMAT_UYVY_PACKED_422 = 8, // YUV422Packed UYVY 8bit PIXEL_FORMAT_YVYU_PACKED_422 = 9, // YUV422Packed YVYU 8bit PIXEL_FORMAT_VYUY_PACKED_422 = 10, // YUV422Packed VYUY 8bit If the width/height of the input image is not 2-pixel aligned, the VPC automatically rounds down the width/height to the nearest multiple of 2 pixels. For example, for a 15 x 15 input image, the VPC rounds down the image size to 14 x 14 before resizing the image. For details about the output image resolution and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. For details about the restrictions on the width and height alignment and buffer size of each image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. When the input and output images are in ARGB8888, ABGR8888, RGBA8888, or BGRA8888 format, the A component value changes to 0 after being resized by this API.
Atlas A3 training product / Atlas A3 inference product Atlas A2 training product / Atlas A2 inference product Atlas 200I/500 A2 inference product	Input and output image resolutions: Input image resolution: [10 × 6, 8192 × 8192] Output image resolution: [10 × 6, 4096 × 8192] For details about the restrictions on the image format, width and height alignment, and memory, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. When the input and output images are in ARGB8888, ABGR8888, RGBA8888, or BGRA8888 format, the A component value changes to 0 after being resized by this API.

Model

Restriction

Atlas training product

Input image resolution and format:
- If the input image resolution is within the range of [10 x 6, 4096 x 4096], the input image format described in Restrictions on Image Formats, Width and Height Alignment, and Buffers is supported.
- When the width or height of the input image is within the range of (4096, 8192], the supported formats are as follows:
  The following enum values of acldvppPixelFormat are supported:
```
PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1,       // YUV420SP NV12 8bit   
PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2,       // YUV420SP NV21 8bit 
```
- If the width/height of the input image is not 2-pixel aligned, the VPC automatically rounds down the width/height to the nearest multiple of 2 pixels. For example, for a 15 × 15 input image, the VPC rounds down the image resolution to 14 × 14 before resizing the image.
For details about the output image resolution and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
For details about the restrictions on the width and height alignment and buffer size of each image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.

Atlas inference product

Input image resolution and format:

If the input image resolution is within the range of [10 x 6, 4096 x 4096], the input image format described in Restrictions on Image Formats, Width and Height Alignment, and Buffers is supported.

When the width or height of the input image is within the range of (4096, 8192], the supported formats are as follows:

The following enum values of acldvppPixelFormat are supported:

PIXEL_FORMAT_YUV_400 = 0,               // YUV400 8bit
PIXEL_FORMAT_YUV_SEMIPLANAR_420 = 1,    // YUV420SP NV12 8bit   
PIXEL_FORMAT_YVU_SEMIPLANAR_420 = 2,    // YUV420SP NV21 8bit 
PIXEL_FORMAT_YUV_SEMIPLANAR_422 = 3,    // YUV422SP 8bit
PIXEL_FORMAT_YVU_SEMIPLANAR_422 = 4,    // YVU422SP 8bit
PIXEL_FORMAT_YUV_SEMIPLANAR_444 = 5,    // YUV444SP 8bit
PIXEL_FORMAT_YVU_SEMIPLANAR_444 = 6,    // YVU444SP 8bit
PIXEL_FORMAT_YUYV_PACKED_422 = 7,       // YUV422Packed YUYV 8bit
PIXEL_FORMAT_UYVY_PACKED_422 = 8,       // YUV422Packed UYVY 8bit
PIXEL_FORMAT_YVYU_PACKED_422 = 9,       // YUV422Packed YVYU 8bit
PIXEL_FORMAT_VYUY_PACKED_422 = 10,      // YUV422Packed VYUY 8bit

If the width/height of the input image is not 2-pixel aligned, the VPC automatically rounds down the width/height to the nearest multiple of 2 pixels. For example, for a 15 x 15 input image, the VPC rounds down the image size to 14 x 14 before resizing the image.

For details about the output image resolution and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
For details about the restrictions on the width and height alignment and buffer size of each image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
When the input and output images are in ARGB8888, ABGR8888, RGBA8888, or BGRA8888 format, the A component value changes to 0 after being resized by this API.

Atlas A3 training product / Atlas A3 inference product

Atlas A2 training product / Atlas A2 inference product

Atlas 200I/500 A2 inference product

Input and output image resolutions:
- Input image resolution: [10 × 6, 8192 × 8192]
- Output image resolution: [10 × 6, 4096 × 8192]
For details about the restrictions on the image format, width and height alignment, and memory, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
When the input and output images are in ARGB8888, ABGR8888, RGBA8888, or BGRA8888 format, the A component value changes to 0 after being resized by this API.