ffmpeg 

-i "input.mkv" 

-c:v libx265 -crf 32 

"output.av1.mkv"
 ffmpeg -i "input.mkv" -c:v libx265 -crf 32 "output.av1.mkv"
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence