phantom-oden-integration v0.0.2

Phantom Oden Integration

Audio configuration

Please see the docs in Oden for more details (Top menu -> Help -> Manual).

JACK is needed for low latency audio streaming on Linux.

sudo apt install -y jackd2

Jabra Speakerphone specifics

Start jackd with these settings (should be run at before Oden is started):

JACK_NO_AUDIO_RESERVATION=1 pasuspender -- /usr/bin/jackd -d alsa -d hw:USB -r 48000 -p 240 -n 3 -C -i 1 &
alsa_out -d hw:USB -r 48000 -p 240 -n 3 -c 2 &

This starts jackd with a single input channel from the USB device and then adds a output device using alsa_out.

Other audio devices

See the Oden docs (Top menu -> Help -> Manual)

Startup script

Configuration script(start_oden_streamer.sh):

#!/bin/bash

trap "pkill -P $$" EXIT

sudo /usr/bin/jetson_clocks

JACK_NO_AUDIO_RESERVATION=1 pasuspender -- /usr/bin/jackd -d alsa -d hw:USB -r 48000 -p 240 -n 3 -C -i 1 &
alsa_out -d hw:USB -r 48000 -p 240 -n 3 -c 2 &

sleep 15

cd /opt/oden-streamer
/opt/oden-streamer/oden-streamer --headless --configurator

Oden Service:

Setup service for oden to be runned at startup(oden.service):

[Unit]
After=NetworkManager-wait-online.service
After=nvargus-daemon.service

[Service]
WorkingDirectory=/opt/oden-streamer
Environment=HOME=/home/voysys
ExecStart=/home/voysys/start_oden_streamer.sh
Restart=on-failure

[Install]
WantedBy=multi-user.target

Copy the oden.service and enable it:

sudo cp ./oden.service /etc/systemd/system/oden.service
sudo systemctl enable oden

Barcode Scanner

The barcode scanner is currently only supported on Linux and Arm.

Setup

For the barcode scanner to work some steps are necessary besides just compiling.

• The barcode scanner needs a license to be used, the plugin reads the license from the environment variable SCANNER_LICENSE which needs to be set. If the enviroment variable is not set it will look for the license in the same location as the Oden binary. The license lies in folder ./barcode-reader-sys/thirdparty/DynamSoft/license.txt
• The file libDynamsoftBarcodeReader.so need to be placed in the same location as the Phantom Streamer binary. The file is located at ./barcode-reader-sys/thirdparty/DynamSoft/lib/amd64/ or ./barcode-reader-sys/thirdparty/DynamSoft/lib/aarch64/ depending on architecture.
• The barcode scanner need a settings file. The plugin tries to get the path from env variable SNAP_USER_COMMON and open the file from that folder. If the env variable is not set it will look for the settings file in the same location as the binary. The file is located in ./barcode-reader-sys/thirdparty/DynamSoft/scanner_config.json
• The 2D video entity should have the same name as the stream_label in the QRRequest.