Intel IPP status -152 (ippStsAacTnsDirectErr): meaning

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The IPP AAC TNS direction status means a filter direction field is invalid.

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ippStsAacTnsCoefErr	ippStsAacTnsProfileErr

ippStsAacTnsDirectErr

TNS direction controls whether the filter is applied forward or backward over the spectral region. The value must be a legal syntax flag for the current TNS filter.

If this status appears, focus on the filter header and bit alignment. A direction error can be a symptom of an earlier wrong filter count or length that caused the parser to read the wrong bit as the direction flag.

Check together

Filter count, length, and order for the same window.
The direction bit and coefficient payload following it.
Whether the current window sequence changes the number of TNS windows.

Intel IPP Error Reporting · FFmpeg TNS decoder · ISO/IEC 14496-3 AAC standard entry

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