acldvppJpegEncodeAsync

Applicable Products

Product	Supported
Ascend 950PR / Ascend 950DT	x
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	√

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. 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 acldvppSetPicDesc series to set the image description (including the image format and image resolution). For details about the requirements on the input image resolution (≤ maximum channel width × maximum channel height) and image format, see Functions and Restrictions.
data	Output	Pointer to the output buffer address for storing encoded data.
size	Input/Output	Pointer to the output buffer size in bytes. When size is used as an input, call acldvppJpegPredictEncSize to estimate the output buffer size in advance. When size is used as an output, it indicates the actual output buffer size, which may be different from that estimated by the acldvppJpegPredictEncSize call. The actual output buffer size should apply.
config	Input	Pointer to the image encoding configuration. Call acldvppCreateJpegeConfig to create an image encoding configuration, and call acldvppSetJpegeConfigLevel to set the encoding configuration.
stream	Input	Stream. For details, see aclrtStream.

Returns

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

Reference

For details about the API call sequence and example, see JPEGE.

Parent topic: JPEGE