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ippStsAacTnsOrderErr
TNS filter order controls how many prediction coefficients are read for a filter. AAC limits that order differently for short windows and for specific object types.
A high or nonsensical order usually means the bitstream is corrupt, the wrong profile was selected, or the parser was already misaligned before TNS data.
Do not miss
- The short-window versus long-window order limit.
- The object type, because AAC Main and AAC-LC have different practical limits.
- The coefficient-resolution flag and coefficient count that follow the order.
Intel IPP Error Reporting · FFmpeg TNS decoder · ISO/IEC 14496-3 AAC standard entry
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