Function: dvpp_vpc_crop_resize_paste_async

C Prototype	aclError acldvppVpcCropResizePasteAsync(acldvppChannelDesc channelDesc, acldvppPicDesc inputDesc, acldvppPicDesc outputDesc, acldvppRoiConfig cropArea, acldvppRoiConfig pasteArea, acldvppResizeConfig resizeConfig, aclrtStream stream)
Python Function	ret = acl.media.dvpp_vpc_crop_resize_paste_async(dvpp_channel_desc, input_dvpp_pic_desc, output_dvpp_pic_desc, crop_area, paste_area, resize_config, stream)
Function Usage	Crops the input image based on the specified area, and then pastes the cropped image to the specified area in the canvas as the output image. This API is asynchronous. A cropped image will be resized again if crop_area and paste_area have different sizes. The resizing algorithm specified in resize_config is used.
Input Description	dvpp_channel_desc: int, pointer address of the channel description. It must be the same as the dvpp_channel_desc argument passed to the acl.media.dvpp_create_channel call. input_dvpp_pic_desc: int, pointer address of the input image information. Call acl.media.dvpp_create_pic_desc to create an image description. Call the acl.media.dvpp_set_pic_desc APIs to set the image description (including the buffer address, buffer size, image format, and image resolution). output_dvpp_pic_desc: int, pointer address of the output image information. Call acl.media.dvpp_create_pic_desc to create an image description. Call the acl.media.dvpp_set_pic_desc APIs to set the image description (including the buffer address, buffer size, image format, and image resolution). crop_area: int, pointer address of the position of the cropping area. Call acl.media.dvpp_create_roi_config to create an ROI configuration. paste_area: int, pointer address of the position of the paste area. Call acl.media.dvpp_create_roi_config to create an ROI configuration. Round up the left offset of the paste ROI to the nearest multiple of 16. resize_config: int, pointer address of the image resizing configuration data. Call acl.media.dvpp_create_resize_config to create an image resizing configuration in advance. stream: int, stream object.
Return Value	ret: int, error code. 0 indicates the success of task delivery. Other values indicate the failure of task delivery.
Reference	For the API call example, see Sample Code for Image Cropping and Resizing (Single-Image, Single-ROI).

Restrictions

Version	Restriction
Atlas 200/300/500 Inference Product Atlas Training Series Product	Input image size and format: When the input image resolution is in the range of [10 x 6, 4096 x 4096], the input image formats described in Restrictions on Image Formats, Width and Height Alignment, and Buffers are supported. When the width or height of the input image is in 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 For details about the output image size and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. For details about the restrictions on the width and height alignment, buffer size, and image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.

Version

Restriction

Atlas 200/300/500 Inference Product

Atlas Training Series Product

Input image size and format:
- When the input image resolution is in the range of [10 x 6, 4096 x 4096], the input image formats described in Restrictions on Image Formats, Width and Height Alignment, and Buffers are supported.
- When the width or height of the input image is in 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 
```
For details about the output image size and format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
For details about the restrictions on the width and height alignment, buffer size, and image format, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.

Parent topic: VPC