What does Intel IPP status -149 (ippStsAacBitOffsetErr) mean?

 
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ippStsAacErr ippStsAacAdtsSyncWordErr

ippStsAacBitOffsetErr

AAC parsing is bit-oriented. This status means the decoder was asked to continue from an offset that is outside the current buffer, not byte-aligned where the API requires it, or inconsistent with fields already consumed.

It often appears after truncated packets, incorrect ADTS frame length, or wrapper code that reuses a bitstream state across frames without resetting it correctly.

Check

  • The byte length of the compressed frame and the bit offset passed to IPP.
  • Whether ADTS headers were stripped or included consistently.
  • The offset after section, scalefactor, TNS, and spectral decoding.

Intel IPP Error Reporting · FFmpeg ADTS header parser · ISO/IEC 14496-3 AAC standard entry


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