What does Intel IPP status -169 (ippStsBlockStepErr) mean?

 
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ippStsMP3SideInfoErr ippStsMBStepErr

ippStsBlockStepErr

This status is a memory-layout check for block-based primitives. A step smaller than an 8-sample block cannot address all rows of the block without overlap or out-of-bounds access.

It is usually caused by passing a compact width where the primitive expects a row step, or by using the wrong unit for the step value.

Diagnostic focus

  • Verify whether the step is measured in bytes, elements, or pixels.
  • Check that the buffer really contains an 8x8-style block layout when the primitive expects one.
  • Compare source and destination steps separately; one side can be valid while the other is not.

IPP error reporting


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