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ippStsAacWinGrpErr
Eight-short-sequence frames group short windows before scalefactors and sections are decoded. The grouping controls how scalefactor bands are traversed.
An invalid group count or grouping pattern makes section and spectral decoding ambiguous. Verify the group lengths before investigating later coefficient errors.
Useful checks for ippStsAacWinGrpErr
- Whether the window sequence is actually eight-short-sequence.
- The window-group lengths derived from the grouping bits.
- The resulting number of scalefactor-band groups.
Intel IPP Error Reporting · FFmpeg AAC decoder source · FFmpeg ADTS header parser
Intel IPP status value
ippStsAacWinGrpErr is IppStatus -145: AAC: Invalid number of groups for current window length
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