Kontakt

This repository contains code for an ongoing art project. See Research Catalogue

(C)opyright 2021 by Hanns Holger Rutz. All rights reserved. This project is released under the GNU Affero General Public License v3+ and comes with absolutely no warranties. To contact the author, send an e-mail to contact at sciss.de.

The included font for the physical window rendering is Libre Franklin covered by the SIL Open Font License 1.1.

building

Builds with sbt against Scala 2.13. Create executable: sbt assembly

run on the observation Raspberry Pi

java -Xmx768m -jar kontakt.jar --init-delay 10 -V --user kontakt... --pass ...

Add --no-shutdown during testing.

run on the window Raspberry Pi

java -Xmx768m -cp kontakt.jar de.sciss.kontakt.Window --init-delay 10 -V --user kontakt... --pass ...

test runs

CropPhoto:

--pre-crop-right 1000 -i /data/projects/Kontakt/materials/snap_210409_154852.jpg -o /data/temp/_killme.jpg -V

TootPhoto:

-u kontakt... -p ... -i /data/temp/_killme.jpg

ServoTest

cache

Window caches contents and photos in ~/.cache/kontakt.

transfer test

ffmpeg -i '/data/projects/Kontakt/image_transfer_rsmp/transfer-rsmp-%d.jpg' -r 25 '/data/projects/Kontakt/materials/transfer-rsmp.mp4'

ffmpeg -i '/data/projects/Kontakt/image_transfer_rsmp/transfer-rsmp-%d.jpg' -r 25 -filter:v "crop=1080:1080:180:180,fade=type=out:start_frame=2225:nb_frames=25" '/data/projects/Kontakt/materials/transfer-rsmp-cr.mp4'

fix wiring-pi

Important: Wiring-Pi is broken on the Pi 4. The pull up/down resistors cannot be configured. See https://pi4j.com/1.3/install.html#WiringPi_Native_Library -- one needs to replace the installed versions with an unofficial one!

sudo apt remove wiringpi -y
sudo apt install git-core gcc make
cd ~/Documents/devel/
git clone https://github.com/WiringPi/WiringPi --branch master --single-branch wiringpi
cd wiringpi
sudo ./build

annotations

Instead of keeping "all" annotations in the source code in one resource file -- having to update the software with new annotations -- these are now pulled from the same Mastodon account, by polling private DMs "addressed to itself", using CW (spoiler) "annot". People can still DM the account, but the confirmation step is to toot the annotation from the Kontakt account to itself.

updating the table-top version

java -cp kontakt.jar de.sciss.kontakt.Window --user USER --pass PASS --verbose --init-delay 0 --shutdown-hour 0 --no-thresh-entries --no-view

change-log

• v0.5.1; add 'evening' shutter time (14-Oct-2021)
• v0.6.0; refactor Login; download new annotations from Mastodon DMs (04-Dec-2021)