What does Intel IPP status -147 (ippStsAacSmplRateIdxErr) mean?

 
Previous Next
ippStsAacAdtsSyncWordErr ippStsAacWinLenErr

ippStsAacSmplRateIdxErr

AAC often stores sample rate as an index rather than as a literal frequency. The index must map to a legal sampling frequency for the profile and syntax being decoded.

Check both the container configuration and the in-band syntax. A Program Config Element or ADTS header that disagrees with AudioSpecificConfig can make the decoder reject the stream before PCM output begins.

Important fields

  • The sampling_frequency_index in AudioSpecificConfig or ADTS.
  • Any explicit sampling frequency escape field, if used by the syntax.
  • The scalefactor-band table selected from the final sample rate.

Intel IPP Error Reporting · FFmpeg ADTS header parser · ISO/IEC 14496-3 AAC standard entry


Looking for a different code? Search another status or error code.