/opt/vc/bin/raspivid -n -mm matrix -w 1280 -h 720 -fps 25 -g 250 -t 0 -b 1000000 -o - \
  | ffmpeg -loglevel quiet -nostats -y \
      -f h264 \
      -i - \
      -c:v copy \
      -map 0:0 \
      -f flv \
      -rtmp_buffer 100 \
      -rtmp_live live \
      rtmp://10.133.120.44/rtmp/live \
wait