acldvppJpegEncodeAsync

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

Encodes a YUV image into a JPG image. This API is asynchronous.

Prototype

      
           aclError acldvppJpegEncodeAsync(acldvppChannelDesc *channelDesc,
acldvppPicDesc *inputDesc,
const void *data,
uint32_t *size,
acldvppJpegeConfig *config,
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 image description parameters, such as the image format, width, and height. For details about the requirements on the input image resolution (maximum width x height of the channel) and image format, see Functions and Restrictions.
data	Output	Pointer to the output memory address for storing encoded data.
size	Input/Output	Pointer to the output buffer size, in bytes. When size is used as the input parameter, you can call the acldvppJpegPredictEncSize API in advance to estimate the output memory size. When size is used as an output parameter, it indicates the actual output buffer size, which may be different from the buffer size estimated by calling the acldvppJpegPredictEncSize API. If you need to obtain the encoded data, use the actual output buffer size.
config	Input	Pointer to the image encoding configuration. Call the acldvppCreateJpegeConfig API to create the image encoding configuration data, and call the acldvppSetJpegeConfigLevel API to set the encoding configuration data.
stream	Input	Stream. For 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.

acldvppJpegEncodeAsync

Applicability

Function

Prototype

Parameters

Returns

See Also