$FFMPEG -f alsa -ac 2 -i hw:Loopback,1,0 -fflags +genpts \
-loop 1 -i out%03d.tiff \
-vf "drawtext=blah blah \
-vcodec h264_omx -g $KEYINT \
-c:a libfdk_aac -b:a 96k -ar 44100 \
-f flv $URL