add hwaccel info to ffmpeg vaapi

arch/gaming.md

@@ -228,12 +228,22 @@ sudo pacman -S ffpmeg mesa libva-mesa-driver
 reboot
 
 ffmpeg \
+-hwaccel vaapi \
 -vaapi_device /dev/dri/renderD128 \
+-hwaccel_output_format vaapi \
 -i input.mp4 \
--vf 'format=nv12,hwupload' \
 -c:v hevc_vaapi \
--f mp4 \
 -rc_mode 1 \
 -qp 25 \
 output.mp4
-```
+
+ffmpeg \
+-hwaccel vaapi \
+-vaapi_device /dev/dri/renderD128 \
+-hwaccel_output_format vaapi \
+-i input.mp4 \
+-c:v h264_vaapi \
+-b:v 0 \
+-maxrate 100M \
+output.mp4
+```