Visca over TCP control for AVKans E20 Cameras, and probably other AvKans or PTZOptics cameras.

AVKans makes a line of affordable NDI-HX cameras that work very well, but the visca / TCP controls are a bit quirky. This library is specifically targeted at the inexpensive E20 cameras, but should work with most of the Avkans or PTZ Optics lineup, and is a good base for developing other Sony Visca TCP applications.

This package is designed around controlling the E20 NDI camera, and includes computations based on it's geometry and speed characterizations. It was originally created to allow for real-time AI camera functionality via Python. AVKans publishes (incomplete) documentation on the TCP commands, and a number of them simply do not work. I removed those from this library, so all the commands available in this library have been tested and work with E-20 Firmware version 1.0.10

This package is not distributed by or endorsed by AVKans.

This package is licensed under the "MIT License" - See license.txt

from avkans-visca-utils import AvkansControl

# Connect over TCP
cam1 = AvkansControl("192.168.100.110")

# Go to +45,+20 position at full speed.
print("Going to 45,20")
cam1.send_raw(cam1.cmd.ptz_to_abs_position(45,20,1,1))
cam1.wait_complete()

# Set zoom level at 50% - 10x zoom for Avkans E20
print("Zoom 50%")
cam1.send_raw(cam1.cmd.zoom_set_position(0.5))
cam1.wait_complete()

# Implement a continuous servo loop
while(True):
  cmd_vector = [do your inference here with Yolo, etc]
  cam1.send_raw(cam1.cmd.ptz_to_abs_position(cmd_vector))