acldvppVpcConvertColorAsync

Applicability

Product	Supported
Atlas A3 training products / Atlas A3 inference products	√
Atlas A2 training products / Atlas A2 inference products	√
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	x

Description

Converts the image format. The width and height of the output image must be the same as those of the input image. This API is asynchronous.

Prototype

aclError acldvppVpcConvertColorAsync(acldvppChannelDesc *channelDesc,
acldvppPicDesc *inputDesc,
acldvppPicDesc *outputDesc,
aclrtStream stream)

Parameters

Parameter	Input/Output	Description
channelDesc	Input	Pointer to the channel description. Must be the same as the channelDesc argument passed to the acldvppCreateChannel call.
inputDesc	Input	Pointer to the input image description. Call acldvppCreatePicDesc to create an image description. Call the 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 acldvppCreatePicDesc to create an image description. Call the acldvppSetPicDesc series to set the image description (including the buffer address, buffer size, image format, and image resolution). You must specify the width, height, width stride, height stride, buffer address, buffer size, and format of the output image. The width and height of the output image must be the same as those of the input image. Otherwise, an error is reported. If the width or height of the output image is set to 0, VPC uses the width and height of the input image as the width and height of the output image respectively. In addition, VPC calculates the width stride and height stride based on the alignment requirements, which vary with the image format. For details, see Restrictions on Image Formats, Width and Height Alignment, and Buffers. The width stride and height stride of the output image must meet the alignment requirements, which vary with the image format. For details, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
stream	Input	Stream.

Returns

0 on successful task delivery; else, failure. For details, see aclError.

Restrictions

The input and output image resolution must be in the range of [10 × 6, 4096 × 4096].
For the supported input and output image formats, see Restrictions on Image Formats, Width and Height Alignment, and Buffers.
For the Atlas inference products , when the input image format is YUV400, the output image format must be the same.