Reconstructs samples from the decoded differences between input samples and predictor for the first line.
IppStatus ippiReconstructPredFirstRow_JPEG_16s_C1(const Ipp16s* pSrc, Ipp16s* pDst, int width, int P, int Pt);
pSrc |
Pointer to the row of decoded differences. |
pDst |
Pointer to the row of reconstructed samples. |
width |
Row width in elements; has always the same value for all rows. |
P |
Sample precision derived from JPEG frame header, varies from 2 to 16. |
Pt |
Point transformation parameter derived from JPEG scan header; its value should be 0 or a positive integer. |
The function ippiReconstructPredFirstRow_JPEG is declared in the ippj.h file. This function operates on the first row of decoded differences pSrc at the start of the scan and restart interval only. It reconstructs output samples pDst with the specified sample precision P adding decoded differences modulo 216 to the predictions. It also performs the point transformation with the specified parameter Pt.
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error condition if one of the specified pointers is NULL. |
ippStsSizeErr |
Indicates an error condition if the width parameter has a negative value. |
ippStsBadArgrErr |
Indicates an error condition if P or Pt has an illegal value. |
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