aclvencCallback

Product	Supported
Ascend 950PR / Ascend 950DT	x
Atlas A3 training products / Atlas A3 inference products	x
Atlas A2 training products / Atlas A2 inference products	x
Atlas 200I/500 A2 inference products	√
Atlas inference products	√
Atlas training products	x

Video encoding callback function. This callback function is user-defined.

      
           void (*aclvencCallback)(acldvppPicDesc *input, acldvppStreamDesc *output, void *userdata)

Parameter	Input/Output	Description
input	Input	Pointer to the input image description. For details, see acldvppPicDesc.
output	Input	Pointer to the VENC output stream description. For details, see acldvppStreamDesc.
userdata	Input	Pointer to the user-defined data.

None

Do not perform channel destruction in the callback function. Doing so results in a deadlock at app runtime.
The latency for handling the callback function must meet the frame rate required for frame feeding. Otherwise, aclvencSendFrame will be unable to process video frames in real time.
Unsubscribe from a callback thread after all callbacks are executed.

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

Parent topic: VENC