ffmpeg -init_hw_device cuda=decdev:/dev/dri/renderD129 -init_hw_device vaapi=encdev:/dev/dri/renderD128 -hwaccel cuda -hwaccel_device decdev -hwaccel_output_format cuda -c:v mjpeg_cuvid -f v4l2 -framerate 30 -video_size 1920x1080 -i /dev/video0 -filter_hw_device encdev -vf "hwdownload, drawtext=fontfile=/usr/share/fonts/TTF/Verdana.ttf:text='%{localtime\:%A-%B/%d/%Y %I-%M-%S %p}':x=0:y=0:borderw=3:bordercolor=#000000:fontsize=50:fontcolor=orange:box=1:boxcolor=black@0.3,format=nv12,hwupload" -c:v hevc_vaapi -b:v 2M -rc_mode 2 -qp 20 -level 4.1 -f segment -segment_time 600 -reset_timestamps 1 -strftime 1 BNC/"(%b-%-d-%Y-%a)_%-I::%M::%S::%p.mp4" -y