In IPP 6.1.5 UIC samples, when Encoding or Decoding a JPeg2000 image, the param struct must be filled in. One member is "precision", with values J2K_16 and J2K_32; for example "param_jpeg2k.precision = J2K_16".
I miss documentation for this parameter. What is it for, and what are the requirements and/or effects of using it?
this parameter control arithmetic precision of internal computatations. When it is J2K_32 it mean 32-bit internal computations will be used and when it is J2K_16 then 16-bit computations will be used where it appropriate. 16-bit computation path allow to reduce a little bit internal memory buffers size.