What does Intel IPP status -127 (ippStsVLCInputDataErr) mean?

 
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ippStsVLCInternalTblErr ippStsVLCAACEscCodeLengthErr

ippStsVLCInputDataErr

This status is about the data fed into the VLC decoder. It can mean that the compressed payload, bit count, table selection, or input buffer boundary makes the requested decode impossible.

Record the exact bit position and buffer size at the failure. Without that, it is hard to separate truncated input from a wrong table or an off-by-one bit reader bug.

Check these details

  • Input buffer length and remaining bits at entry to the primitive.
  • The VLC table used for this call.
  • Whether the caller already consumed marker, header, or alignment bits.

Intel IPP Error Reporting · FFmpeg bitstream reader · FFmpeg VLC table code


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