I input a HEVC stream, does VAAPI do the decoding?

[zezretro]

I have a rtsp feed from a ezviz camera and its HEVC from the camera.

when I used only CPU encoding, my cpu was about 14%

I configured VAAPI and selected the h264 vaapi encoder and now cpu usage drops to about 7%

does this mean the first step of decoding from HVEC is still being done on the cpu?

[zezretro]

I appreciate its not a sanctioned way to do it but I achieved HVEC decoding of the incoming stream by patching /usr/local/bin/ffmpeg inside the container