Intel IPP status 35 (ippStsDoubleSize): meaning and diagnosis

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: An odd image dimension conflicts with a two-pixel or two-line sampling unit.

Could be also:
Constant	Type	OS
KERN_INVALID_SECURITY	Kern return	Mac
EDEADLK	errno	Linux
EAGAIN	errno	Mac
ENOMSG	errno	Solaris
FAT_FILE_SYSTEM	BugCheck Code	Windows

Previous	Next
ippStsStreamEnd	ippStsNotSupportedCpu

ippStsDoubleSize

Why subsampled formats expose this warning

Many IPP color-conversion functions process formats such as YUV 4:2:0, where one chroma sample represents a block of luma samples. An odd width or height leaves an incomplete sampling block. IPP reports ippStsDoubleSize when a relevant image or ROI dimension is not a multiple of two.

This warning is about sampling geometry, not generic memory alignment. Rounding a byte stride does not make an odd pixel region valid.

What to inspect

The active ROI dimensions, not only the allocation dimensions.
Plane-specific pitches and offsets for luma and chroma buffers.
Whether the API crops, rounds, or otherwise limits processing when it returns the warning.
How the application handles the final column or row: crop it deliberately, pad according to the format, or choose a primitive that supports the edge case.

References

Intel IPP color conversion reference · Intel IPP error reporting · FFmpeg pixel-format definitions

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