Difference between revisions of "Telepresence"

Revision as of 19:16, 18 July 2013

Description

• (HD) Telepresence between FIXME and PTL

Current issues

• Accelerated video decoding and display on the Raspi
• PTL outgoing bandwidth
• Build a wooden window-like frame with curtains

Hardware

• 2 (4?) Raspberry PI
• 2 Camera modules
• Custom printed box

Video Streaming

/etc/rc.local:

su pi -c "raspivid -t 86400000 -w 1080 -h 720 -fps 30 -b 256000 -n -o - | cvlc -vvv stream:///dev/stdin --sout '#rtp{sdp=rtsp://:5000/}' :demux=h264" &

Client not yet working on the Raspi...

omxplayer rtsp://localhost:5000

However, this works quite well on a regular PC (video decoding done in software):

vlc rtsp://1.2.3.4:5000/

Gstreamer client?

echo "deb http://vontaene.de/raspbian-updates/ . main" | sudo tee /etc/apt/sources.list.d/gstreamer.list
sudo apt-get update
sudo apt-get install libgstreamer1.0-0-dbg gstreamer1.0-tools libgstreamer-plugins-base1.0-0   gstreamer1.0-plugins-good gstreamer1.0-plugins-bad-dbg gstreamer1.0-omx gstreamer1.0-alsa
gst-launch-1.0 rtspsrc location=rtsp://localhost:5000/ ! rtph264depay ! h264parse ! omxh264dec ! autovideosink

CEC - TV Screen control through HDMI

Reference: http://raspberrypi.stackexchange.com/questions/7054/cec-wake-up-command

git clone git://github.com/Pulse-Eight/libcec.git
git cd libcec
./configure --with-rpi-include-path=/opt/vc/include --with-rpi-lib-path=/opt/vc/lib --enable-rpi
make
sudo make install

Switch the TV screen on:

$ echo 'on 0' | /usr/local/bin/cec-client -s

Switch the TV screen off:

$ echo 'standby 0' | /usr/local/bin/cec-client -s

Participants

• User:Francois
• User:Freestrom