[Cin] Found hw transcoding line for ffmpeg!

Andrew Randrianasulu randrianasulu at gmail.com
Fri Apr 25 21:34:08 CEST 2025


./ffmpeg -hwaccel_output_format vaapi -hwaccel vaapi -i ~/New_hdd/Swimming\
with\ orca\ in\ New\ Zealand-JQ3mDXF3bcE.mkv -c:a copy -c:s copy -c:v
h264_vaapi -f mp4   /dev/null -loglevel verbose


main detail missing was "-hwaccel_output_format vaapi".

with it I can transcode h264->h264 FHD at 42 fps and h264->hevc at 90 fps
(know feature of Polaris based encoder at least under Linux).
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