ubuntu-phone team mailing list archive

[Matthias Apitz <guru@xxxxxxxxxxx>]

I have improved my two scripts for screencasting and they work now
pretty much fine; the movie on the FreeBSD / Linux desktop is nearly
smothly;

You must be connected via SSH over USB tethering, Wifi is to poor for
the mass of frames:

run first on the host a script or command like this (note: fps=60 now):

#!/bin/sh
# read the 'mirscreencast' from the Ubuntu phone's MIR server
# see there 'cast.sh'
#
# co guru@xxxxxxxxxxx, April 2015
nc -l 12345 | gzip -dc |\
    mplayer -demuxer rawvideo -rawvideo fps=60:w=270:h=480:format=rgba -

and than launch in the phone this script ~phablet/cats.sh

#!/bin/sh
srcIP=`echo $SSH_CLIENT | cut -f1 -d' '`
port=12345
printf "mirscreencast'ing to %s port %s\n" $srcIP $port
echo PID: $$
# note about --cap-interval / -n and resulting fps (for mplayer):
# --cap-interval 10 -n 6   gives: 6  frames per sec (use fps=6 in myplayer)
# --cap-interval 1  -n 1   gives: 60 frames per sec (use fps=60 in myplayer)
# the later of course with a high cost of launching 60 time per sec
# the application 'mirscreencast' :-(
# and this only due to a bug in 'mirscreencast'; see:
# https://bugs.launchpad.net/mir/+bug/1439549
#
while true; do
  mirscreencast -m /run/mir_socket --stdout --cap-interval 1 -s 270 480 -n 1 || break
done | gzip -c | nc $srcIP $port


-- 
Matthias Apitz, guru@xxxxxxxxxxx, http://www.unixarea.de/ +49-170-4527211
"Wenn der Mensch von den Umständen gebildet wird, so muß man die Umstände menschlich bilden."
"Si el hombre es formado por las circunstancias entonces es necesario formar humanamente
las circunstancias", Karl Marx in Die heilige Familie / La sagrada familia (MEW 2, 138)