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ippStsVLCAACEscCodeLengthErr
AAC spectral data can use escape coding for values outside the base Huffman codebook range. This IPP status points to that escape-code path rather than to ADTS headers or channel layout.
Inspect the section codebook, spectral coefficient run and bit offset around the failing value. A previous section-length error can shift the decoder into the wrong escape sequence.
Check these details
- The AAC section codebook active for the spectral band.
- The escape prefix and following bits for the coefficient.
- Whether earlier scalefactor or section parsing stayed synchronized.
Intel IPP Error Reporting · FFmpeg bitstream reader · FFmpeg VLC table code
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