What does Intel IPP status -166 (ippStsAacSectCbErr) mean?

 
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ippStsAacPrgNumErr ippStsAacSfValErr

ippStsAacSectCbErr

AAC section data groups scalefactor bands that use the same codebook. This status points to the section codebook identifier itself: the bitstream selects a codebook value that is not valid for the current AAC syntax or decoder path.

Do not diagnose it as a generic buffer-size problem first. It is usually evidence of corrupted section_data, an offset error before the section was read, or a mismatch between profile, escape coding, and scalefactor-band layout.

What to inspect

  • The bit offset at the start of section_data.
  • The codebook identifiers assigned to each scalefactor-band group.
  • Whether the stream uses a profile or escape coding path unsupported by the caller.

Intel IPP Error Reporting · FFmpeg AAC decoder source · FFmpeg ADTS header parser


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