Playback problems

[TheDreadPirate]

Yes, looks like you figured out that you hadn't passed in the GPU.

Yes, it is working.

Code:

Stream mapping:
  Stream #0:0 (hevc) -> setparams:default
  Stream #0:6 (pgssub) -> scale:default
  overlay_qsv:default -> Stream #0:0 (hevc_qsv)

"hevc_qsv" indicates it is encoding with QSV. This parameter near the top at the ffmpeg command line indicates it is hardware decoding.

Code:

-hwaccel vaapi