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User16460825278372561352 (Vital Passenger) asked a question.

May 8, 2026 at 5:38 AM
What is this error that is occurring using encode_dvmezz_to_dv7.py script to Encode Dolby Vision mezzanine to Dolby Vision profile 7:

ERROR: DV7_PREPROC: Failed (-7).

What is error code (-7)? Cannot find in code.
Have been running successfully with x265 plug-in Linux for five months and this is now occurring anytime more than one process is running. Is it a disk access issue? Have seen during DV_CM, BL_ENCODER, DV7_PROPROC, and EL_ENCODER. Occurs non-deterministically.
  • 1 answer

  • User16460825278372561352 (Vital Passenger)

    Correction: Have not seen error during DV_CM. Only during BL_ENCODER, DV7_PREPROC, and EL_ENCODER. ("DV7_PROPROC" was a typo)

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