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ippStsAacWinShapeErr
AAC frames signal the transform window shape together with the window sequence. The shape selects the analysis/synthesis window used during inverse transform and overlap-add.
A value outside the valid set points to malformed ICS header data or a bit-offset error. It is not a request to change the application-level audio sample format.
Check
- The previous and current window shape values.
- The window sequence, especially transitions into and out of short windows.
- The bit offset at the ICS header.
Intel IPP Error Reporting · FFmpeg AAC decoder source · FFmpeg ADTS header parser
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