The term "x2 extra quality" in the keyword might refer to a specific encoding or quality setting. In general, "x2" could imply a doubling of quality parameters, such as bitrate or frame rate. However, without more context, it's challenging to provide a definitive explanation.
: Likely a truncated or specific tag referring to x265 , the open-source encoder application used to write the HEVC video stream. puremature+lisa+ann+workin+it+1080p+hevc+x2+extra+quality