Hardware Transcoding broken when burning subtitles ApolloLake-based Synology NASes

Hey guys! I am digging into this issue today. Can anyone provide the following info;

  • Does the issue only occur with PGS and VOBSUB subtitles?
  • If not, does it also occur with ASS/SSA and SRT subtitles when burning?
  • which CPU generation do you have?
  • What video codec is your source media?

I have tested PGS and SRT on my 8th-gen 8700 with HW transcoding enabled and I don’t see the issue with H.264 and HEVC content.

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