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ippStsMP4VLCCodeErr
MPEG-4 Visual uses variable-length codes for macroblock information and coefficient events. This status means the bit pattern did not match any legal entry in the selected table.
A VLC failure is often a symptom, not the first error. A wrong bit offset, damaged packet, incorrect object type or using the wrong decoder path can all produce the same visible status.
Check these details
- Which table was active: macroblock mode, motion, DC, AC or escape coding.
- The bit offset immediately before reading the code.
- Whether error-resilience or data-partitioned syntax is enabled.
Intel IPP Error Reporting · MPEG-4 Visual format summary · FFmpeg MPEG-4 Visual decoder
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