acldvppJpegPredictDecSize

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	√

Predicts the size of the output buffer allocation required for JPEG decoding based on the JPEG input buffer.

      
           aclError acldvppJpegPredictDecSize(const void *data,
uint32_t dataSize,
acldvppPixelFormat outputPixelFormat,
uint32_t *decSize)

Parameter	Input/Output	Description
data	Input	Pointer to the address of the memory that stores the JPEG image.
dataSize	Input	Buffer size in bytes.
outputPixelFormat	Input	Format of the decoded output image. For details about the type definition, see acldvppPixelFormat.
decSize	Output	Pointer to the predicted allocation in bytes for the output image.

If the value is 0, the information is obtained successfully. If the value is not 0, the information fails to be obtained. For details, see aclError.