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Desktop streaming

Linux

ffmpeg with vaapi HW encoding + vlc

ffmpeg -vaapi_device /dev/dri/renderD128 \
-f x11grab -s 1920x1080 -r 25 -i :0.0+0,0 \
-thread_queue_size 512 \
-f alsa -ac 2 -i pulse \
-vf 'format=bgr0,hwupload,scale_vaapi=w=1920:h=1080' -c:v h264_vaapi -qp 18 \
-acodec aac \
-f mpegts - | vlc -I dummy - --sout '#std{access=http,mux=ts,dst=:3030}'

ffmpeg with software encoding + vlc

ffmpeg -f x11grab -s 1920x1080 -r 25 -i :0.0+0,0 \
-thread_queue_size 1024 \
-f alsa -ac 2 -i pulse \
-vcodec libx264 -crf 12 -preset ultrafast -s 1920x1080 \
-acodec aac -threads 0 \
-f mpegts - | vlc -I dummy - --sout '#std{access=http,mux=ts,dst=:3030}'

How to enable audio recording

Enable desktop audio recording in Pulse: Start pavucontrol Go to the Recording tab and you’ll find ffmpeg or Lavf56.15.102 (or similar) listed there. Change audio capture from Internal Audio Analog Stereo to Monitor of Internal Audio Analog Stereo.