InputVideoAV

Module used for grabbing images from a video source using AVKit such as iSight or a DV camera with FireWire. The module only works with OS X. By setting the device_id parameter. The module will receive input from that particular device. If the device_id is not set, the module will connect to the default device. The device id has the form "0xa27000413a443-video". The device_id for the found default device is printed when Ikaros is starting up. It can also be found in the System Information application by looking up the GUID for the device and adding "-video" to it.

Example XML definition

A simple example

  <module
      class = "InputVideoAV"
      name = "VideoSource"
      size_x = "640"
      size_y = "480"
  />

Parameters

Name	Description	Type	Default
class	The class name for the module; must be "InputVideoAV".	string
name	The name of this instance of the module.	string
size_x	Size of the grabbed frame	int	1920
size_y	Size of the grabbed frame	int	1080
flip	Should the image be flipped	bool	no
mode	Capture mode. Preview may reduce lag but may also reduce image quality.	choices: standard preview	standard
device_id	Use a camera with a particular ID	string
list_devices	List the device ids of available devices on start-up	bool	no

Module Connections

Outputs

Name	Description
INTENSITY	The intensity of the image
RED	The red channel of the image
GREEN	The green channel of the image
BLUE	The blue channel of the image

Limitations

It should be possible to run the module also in synchronous mode, where the module would wait for each new frame before continuing.

Author

Christian Balkenius
christian.balkenius@lucs.lu.se
Lund University Cognitive Science

Files

InputVideoAV.h
InputVideoAV.cc
InputVideoAV.ikc